NAGAOKA Naoto
Faculty of Science and Engineering Department of Electrical Engineering
Professor
Last Updated :2022/07/04

Researcher Profile and Settings

Research Interests

  • 雷サージ
  • 周波数変換
  • EMTP
  • モデリング
  • シミュレーション
  • 電力系統
  • Lightning Surge
  • Frquency Transformation
  • EMTP
  • Modeling
  • Simulation
  • Power System

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electrical power engineering

Research History

  • 1985- Numerical transient analysis on power systems

Research Experience

  • Doshisha University, 1992 -
  • Doshisha University, 1988 -
  • Doshisha University, 1985 -

Education

  • Doshisha University, Graduate School, Division of Engineering, - 1985
  • Doshisha University, Graduate School, Division of Engineering, - 1982
  • Doshisha University, Faculty of Engineering, - 1980

Degree

  • Doctor of Engineering, Doshisha University
  • Master of Engineering, Doshisha University

Association Memberships

  • 電気設備学会
  • 電気学会
  • 英国電気学会
  • 米国電気電子技術者学会
  • 照明学会
  • Institute of Electrical Installation Engineers of Japan
  • The Institute of Electrical Engineers of JAPAN
  • The Institution of Electrical Engineers
  • The Institute of Electrical and Electronics Engineers
  • The illuminating Engineering Institute of Japan

Awards

  • UPEC 最優秀技術論文賞（UPEC Best Technical Paper Prize）
    2004
  • UPEC Best Technical Paper Prize
    2004
  • 照明学会論文賞
    1996, Japan
  • IEIJ Paper Prize
    1996
  • 電気設備学会論文賞
    1993, Japan
  • IEIEJ Paper Prize
    1993
  • 電気関係学会関西支部連合大会奨励賞
    1992, Japan
  • Encouraging Prize of IEEJ Kansai-chapter Annual Meeting
    1992

MISC

  • 3-D FDTD Computation of Lightning-Induced Voltages on an Overhead Two-Wire Distribution Line
    Hiroshi Sumitani; Toshiki Takeshima; Yoshihiro Baba; Naoto Nagaoka; Akihiro Ametani; Jun Takami; Shigemitsu Okabe; Vladimir A. Rakov
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(5) 1161 - 1168, Oct. 2012
    DOI URL
  • 3-D FDTD Computation of Lightning-Induced Voltages on an Overhead Two-Wire Distribution Line
    Hiroshi Sumitani; Toshiki Takeshima; Yoshihiro Baba; Naoto Nagaoka; Akihiro Ametani; Jun Takami; Shigemitsu Okabe; Vladimir A. Rakov
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(5) 1161 - 1168, Oct. 2012
    DOI URL
  • A Simplified Model of Corona Discharge on Overhead Wire for FDTD Computations
    Tran Huu Thang; Yoshihiro Baba; Naoto Nagaoka; Akihiro Ametani; Jun Takami; Shigemitsu Okabe; Vladimir A. Rakov
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(3) 585 - 593, Jun. 2012
    DOI URL
  • A Simplified Model of Corona Discharge on Overhead Wire for FDTD Computations
    Tran Huu Thang; Yoshihiro Baba; Naoto Nagaoka; Akihiro Ametani; Jun Takami; Shigemitsu Okabe; Vladimir A. Rakov
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 54(3) 585 - 593, Jun. 2012
    DOI URL
  • FDTD Simulation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge
    長岡 直人; Thang, T. H; Baba, Y; Ametani, A; Takami, J; Okabe, S; Rakov, V. A
    IEEE Transactions on Electromagnetic Compatibility, 2012
  • Parametric Study on Unit Step Responses of Impulse Voltage Measuring Systems Based on FDTD Simulations
    長岡 直人; Oka, H; Baba, Y; Ishii, M; Ametani, A
    IEEE Transactions on Power Delivery, 2012
  • Application of the TLM Method to Transient Simulations of a Conductor System With a Lossy Ground: Grounding Electrodes and an Overhead Wire
    長岡 直人; Yuda, S; Sawaki, S; Baba, Y; Ametani, A
    IEEE Transactions on Electromagnetic Compatibility, 2012
  • FDTD Simulation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge
    Nagaoka, N; Thang, T. H; Baba, Y; Ametani, A; Takami, J; Okabe, S; Rakov, V. A
    IEEE Transactions on Electromagnetic Compatibility, 2012
  • Parametric Study on Unit Step Responses of Impulse Voltage Measuring Systems Based on FDTD Simulations
    Nagaoka, N; Oka, H; Baba, Y; Ishii, M; Ametani, A
    IEEE Transactions on Power Delivery, 2012
  • Application of the TLM Method to Transient Simulations of a Conductor System With a Lossy Ground: Grounding Electrodes and an Overhead Wire
    Nagaoka, N; Yuda, S; Sawaki, S; Baba, Y; Ametani, A
    IEEE Transactions on Electromagnetic Compatibility, 2012
  • Application of the Partial Element Equivalent Circuit Method to Tower Surge Response Calculations
    Peerawut Yutthagowith; Akihiro Ametani; Naoto Nagaoka; Yoshihiro Baba
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 6(4) 324 - 330, Jul. 2011
    DOI URL
  • A Simplified Model of Corona Discharge on Overhead Wire for FDTD Computations
    長岡 直人; Thang, T; Baba, Y; Ametani, A; Takami, J; Okabe, S; Rakov, V. A
    IEEE Transactions on Electromagnetic Compatibility, 54(3) 585–593 , 2011
  • Application of the Partial Element Equivalent Circuit Method to Analysis of Transient Potential Rises in Grounding Systems
    長岡 直人; Yutthagowith, P; Ametani, A; Baba, Y
    IEEE Transactions on Electromagnetic Compatibility, 53(3) 726–736 , 2011
  • 短絡事故点標定のための直流電気鉄道き電回路のシミュレーションモデル
    長岡 直人; 梅田 繁樹; 延原 隆良; 雨谷 昭弘
    同志社大学理工学研究報告, 52(2) 135 - 142, 2011
  • 免震ビル雷撃時の電磁環境を考慮した構造体接地線布設方法の検討
    長岡 直人; 森田 祐志; 高橋 健彦
    日本建築学会環境系論文集, 76(666) 649 - 654, 2011
  • 金属板大地を用いた実験での実大地モデル化手法
    長岡 直人; 西辻正典; 雨谷昭弘; 馬場吉弘
    電気学会論文誌 B, 131(9) 764 - 769, 2011
  • リチウムイオン2次電池を用いた直流電気鉄道用電力貯蔵装置の試験
    長岡 直人; 梅田 繁樹; 延原 隆良; 雨谷 昭弘
    同志社大学理工学研究報告, 52(3) 163 - 170, 2011
  • 長距離交流ケーブル送電系統用無効電力補償装置の電圧制御方式
    長岡 直人; 田村 裕治; 高崎 真司; 宮崎 保幸; 武田 秀雄; 色川 彰一; 高木 喜久雄
    電気学会論文誌Ｂ, 131(11) 896 - 904, 2011
  • A Simplified Model of Corona Discharge on Overhead Wire for FDTD Computations
    Nagaoka, N; Thang, T; Baba, Y; Ametani, A; Takami, J; Okabe, S; Rakov, V. A
    IEEE Transactions on Electromagnetic Compatibility, 54(3) 585–593 , 2011
  • Application of the Partial Element Equivalent Circuit Method to Analysis of Transient Potential Rises in Grounding Systems
    Nagaoka, N; Yutthagowith, P; Ametani, A; Baba, Y
    IEEE Transactions on Electromagnetic Compatibility, 53(3) 726–736 , 2011
  • Application of the Partial Element Equivalent Circuit Method to Tower Surge Response Calculations
    N. Nagaoka; YUTTHAGOWITH; Peerawut; A. Ametani; Y. Baba
    IEEJ Trans Electr Electron Eng, 6(4) 324 - 330, 2011
  • Propagation Characteristics of Power Line Communication Signals Along a Power Cable Having Semiconducting Layers
    N. Okazima; Y. Baba; N. Nagaoka; A. Ametani; K. Temma; T. Shimomura
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 52(3) 756 - 759, Aug. 2010
    DOI URL
  • Propagation Characteristics of Power Line Communication Signals Along a Power Cable Having Semiconducting Layers
    N. Okazima; Y. Baba; N. Nagaoka; A. Ametani; K. Temma; T. Shimomura
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 52(3) 756 - 759, Aug. 2010
    DOI URL
  • On the Equivalence of a Conducting Plate in a Laboratory Experiment to a Real Earth
    長岡 直人; Ametani, A; Nishitsuji, M; Baba, Y; Okabe, S
    IEEE Transactions on Electromagnetic Compatibility, 52(3) 691–698 , 2010
  • TLM法による集中定数回路要素を考慮したサージ解析
    長岡 直人; 岡嶋直人; 湯田晋介; 馬場吉弘; 雨谷昭弘
    電気学会論文誌B, 130 559 - 565, 2010
  • On the Equivalence of a Conducting Plate in a Laboratory Experiment to a Real Earth
    Nagaoka, N; Ametani, A; Nishitsuji, M; Baba, Y; Okabe, S
    IEEE Transactions on Electromagnetic Compatibility, 52(3) 691–698 , 2010
  • Lightning-Induced Voltage Over Lossy Ground by a Hybrid Electromagnetic Circuit Model Method With Cooray-Rubinstein Formula
    Peerawut Yutthagowith; Akihiro Ametani; Naoto Nagaoka; Yoshihiro Baba
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 51(4) 975 - 985, Nov. 2009
    DOI URL
  • An Investigation of Earth-Return Impedance Between Overhead and Underground Conductors and Its Approximation
    Akihiro Ametani; Tetsuzo Yoneda; Yoshihiro Baba; Naoto Nagaoka
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 51(3) 860 - 867, Aug. 2009
    DOI URL
  • FDTD Electromagnetic Analysis of a Wind Turbine Generator Tower Struck by Lightning
    長岡 直人; M. Nagao; Y. Baba; A. Ametani
    電気学会論文誌B, 129(10) 1181 - 1186, 2009
  • 3次元TLM法の雷電磁界・サージ解析への応用
    長岡 直人; 松田 卓巳; 馬場 吉弘; 雨谷 昭弘
    電気学会論文誌B, 129(7) 948 - 956, 2009
  • FDTD電磁界・サージ解析のための細線導体模擬法の改善
    長岡 直人; 谷口 洋平; 馬場 吉弘; 雨谷 昭弘
    電気学会論文誌B, 129(1) 198 - 204, 2009
  • Induced Voltages to Wires Installed within a Building due to Direct Lightning
    長岡 直人; T. Kusuda; Y. Iwakura
    2009
  • Lightning-Induced Voltage Over Lossy Ground by a Hybrid Electromagnetic Circuit Model Method With Cooray-Rubinstein Formula
    IEEE Trans. EMC, 51(4) 975 - 985, 2009
  • n Investigation of Earth-Return Impedance Between Overhead and Underground Conductors and Its Approximation
    IEEE Trans. EMC, 51(3) 860 - 867, 2009
  • FDTD Electromagnetic Analysis of a Wind Turbine Generator Tower Struck by Lightning
    129(10) 1181 - 1186, 2009
  • Induced Voltages to Wires Installed within a Building due to Direct Lightning
    International Conference on Power Systems Transients, 2009
  • Representation of an Arbitrary-Radius Wire for FDTD Calculations in the 2-D Cylindrical Coordinate System
    Y. Taniguchi; Y. Baba; N. Nagaoka; A. Ametani
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 50(4) 1014 - 1018, Nov. 2008
    DOI URL
  • Modification on a Thin-Wire Representation for FDTD Calculations in Nonsquare Grids
    Y. Taniguchi; Y. Baba; N. Nagaoka; A. Ametani
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 50(2) 427 - 431, May 2008
    DOI URL
  • 共振電流を利用した低圧配電系統背後インピーダンスの推定
    長岡 直人; 三木貫; 小西和紀; 森本光滋; 雨谷昭弘
    電気学会論文誌B, 128(3) 599 - 608, 2008
  • FDTD法を用いた風力発電タワー雷撃時の電流分布解析
    長岡 直人; 長尾 光紘; 馬場 吉弘; 雨谷 昭弘
    電気学会論文誌Ｂ, 128 1393 - 1400, 2008
  • An improved thin wire representation for FDTD computations
    長岡 直人; Y. Taniguchi; Y. Baba; A. Ametani
    56(10) 3248 - 3253, 2008
  • Numerical Simulations of Lightning Surge Responses in a Seismic Isolated Building by FDTD and EMTP
    長岡 直人; H. Morita; Y. Baba; A. Ametani
    電気学会論文誌B, 128(2) 473 - 478, 2008
  • FDTD analysis of the unit step response of a circuit measuring chopped lightning impulse voltages
    Y. Baba; A. Tamano; M. Ishii; N. Nagaoka; A. Ametani
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 23(1) 502 - 503, Jan. 2008
    DOI URL
  • 二次元円筒座標系におけるFDTD計算のための細線導体模擬法
    長岡 直人; 谷口洋平; 馬場吉弘; 雨谷昭弘
    電気学会論文誌B, 128(1) 263 - 269, 2008
  • FDTD法を用いた電磁界・サージ解析のための吸収境界条件の高性能化
    長岡 直人; 岡澤光起; 馬場吉弘; 雨谷昭弘
    電気学会論文誌B, 128(1) 285 - 290, 2008
  • Representation of an arbitrary-radius wire for FDTD calculations in the 2D cylindrical coordinate system
    IEEE Trans. EMC, 50(4) 1014 - 1018, 2008
  • An improved thin wire representation for FDTD computations
    IEEE Trans. Antennas and Propagation, 56(10) 3248 - 3253, 2008
  • Modification on a thin wire representation for FDTD calculations in non-square grids
    IEEE Trans. EMC, 50(2) 427 - 431, 2008
  • Numerical Simulations of Lightning Surge Responses in a Seismic Isolated Building by FDTD and EMTP
    128(2) 473 - 478, 2008
  • FDTD analysis of the unit step response of a circuit measuring chopped lightning impulse voltages
    IEEE Trans. Power Delivery, 23(1) 502 - 503, 2008
  • Nonuniform characteristics of a horizontal grounding electrode
    Arbind Kumar Mishra; Akihiro Ametani; Naoto Nagaoka; Shigemitsu Okabe
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 22(4) 2327 - 2334, Oct. 2007
    DOI URL
  • Nonuniform characteristics of a horizontal grounding electrode
    Arbind Kumar Mishra; Akihiro Ametani; Naoto Nagaoka; Shigemitsu Okabe
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 22(4) 2327 - 2334, Oct. 2007
    DOI URL
  • Z-transform-based methods for electromagnetic transient simulations
    Taku Noda; Abner Ramirez
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 22(3) 1799 - 1805, Jul. 2007
    DOI URL
  • Z-transform-based methods for electromagnetic transient simulations
    Taku Noda; Abner Ramirez
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 22(3) 1799 - 1805, Jul. 2007
    DOI URL
  • Electromagnetic Transients on an Underground Cable due to a Lightning Current Flowing into the Metallic Sheath
    長岡 直人; A. Ametani; D. Miyazaki; N. Taki
    電気学会論文誌B, 127(12) 1313 - 1319, 2007
  • Induced Surge Characteristic on a Control Cable in a Gas-Insulated Substation due to Switching Surge
    長岡 直人; A. Ametani; T.Goto; H. Omura
    電気学会論文誌B, 127(12) 1307 - 1312, 2007
  • A study on frequency-dependent parameters and Sunde's formulas of a counterpoise
    Arbind Kumar Mishra; Akihiro Ametani; Naoto Nagaoka; Shigemitu Okabe
    IEEJ Transactions on Power and Energy, 127(1) 299 - 306, 2007
    DOI URL
  • Lighting surges on a control cable incoming through a grounding lead
    長岡 直人; A. Ametani; N. Taki; D. Miyazaki; S. Okabe
    電気学会論文誌B, 127(1) 267 - 275, 2007
  • Impedance calculation of a single-layer air-core coil by means of resonant modal theory
    N. Nagaoka; D. J. Wilcox
    IET GENERATION TRANSMISSION & DISTRIBUTION, INST ENGINEERING TECHNOLOGY-IET, 1(1) 133 - 139, Jan. 2007
    DOI URL
  • A study on frequency-dependent parameters and Sunde's formulas of a counterpoise
    長岡 直人; A. K. Mishra; N. Nagaoka; A. Ametani
    電気学会論文誌B, 127(1) 299 - 305, 2007
  • Lightning Surges on a Control Cable Incoming through a Grounding Lead
    長岡 直人; A. Ametani; N. Taki; N. Nagaoka
    電気学会論文誌B, 127(1) 267 - 275, 2007
  • Impedance Calculation of a Single-Layer Air-Core Coil by Means of Resonant Model Theory
    長岡 直人; N. Nagaoka; D. J. Wilcox
    48(4) 817 - 825, 2007
  • Electromagnetic Transients on an Underground Cable due to a Lightning Current Flowing into the Metallic Sheath
    127(12) 1313 - 1319, 2007
  • Induced Surge Characteristic on a Control Cable in a Gas-Insulated Substation due to Switching Surge
    127(12) 1307 - 1312, 2007
  • A study on frequency-dependent parameters and Sunde's formulas of a counterpoise
    IEEJ Transactions on Power and Energy, 127(1) 299 - 306, 2007
  • Lighting surges on a control cable incoming through a grounding lead
    IEEJ Transaction on Power and Energy, 127(1) 267 - 275, 2007
  • Impedance calculation of a single-layer air-core coil by means of resonant modal theory
    N. Nagaoka; D. J. Wilcox
    IET Generation, Transmission and Distribution, 1(1) 133 - 139, 2007
    DOI URL
  • A study on frequency-dependent parameters and Sunde's formulas of a counterpoise
    127(1) 299 - 305, 2007
  • Lightning Surges on a Control Cable Incoming through a Grounding Lead
    127(1) 267 - 275, 2007
  • Impedance Calculation of a Single-Layer Air-Core Coil by Means of Resonant Model Theory
    Trans. IET Gener. Transm. Distrib., 48(4) 817 - 825, 2007
  • Modeling of a buried conductor for an electromagnetic transient simulation
    Akihiro Ametani; Daigo Soyama; Yu Ishibashi; Naoto Nagaoka; Shigemitsu Okabe
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 45 - 55, May 2006
    DOI URL
  • Simultaneous measurement of harmonics by a new measuring method
    Toru Miki; Amane Mizutani; Naoto Nagaoka; Akihiro Ametani
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 56 - 65, May 2006
    DOI URL
  • Modeling of a buried conductor for an electromagnetic transient simulation
    Akihiro Ametani; Daigo Soyama; Yu Ishibashi; Naoto Nagaoka; Shigemitsu Okabe
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 45 - 55, May 2006
    DOI URL
  • A frequency dependent transmission line model for a counterpoise
    Arbind Kumar Mishra; Naoto Nagaoka; Akhihiro Ametani
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 14 - 23, May 2006
    DOI URL
  • Modeling of a buried conductor for an electromagnetic transient simulation
    Akihiro Ametani; Daigo Soyama; Yu Ishibashi; Naoto Nagaoka; Shigemitsu Okabe
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 45 - 55, May 2006
    DOI URL
  • Simultaneous measurement of harmonics by a new measuring method
    Toru Miki; Amane Mizutani; Naoto Nagaoka; Akihiro Ametani
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 56 - 65, May 2006
    DOI URL
  • Modeling of a buried conductor for an electromagnetic transient simulation
    Akihiro Ametani; Daigo Soyama; Yu Ishibashi; Naoto Nagaoka; Shigemitsu Okabe
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 45 - 55, May 2006
    DOI URL
  • A frequency dependent transmission line model for a counterpoise
    Arbind Kumar Mishra; Naoto Nagaoka; Akhihiro Ametani
    IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, WILEY, 1(1) 14 - 23, May 2006
    DOI URL
  • A frequency dependent transmission line model for a counterpoise
    長岡 直人; A. K. Mishra; A. Ametani
    1(1) 14 - 23, 2006
  • Frequency-dependent distributed-parameter modelling of counterpoise by time-domain fitting, IEE Proceedings: Generation
    長岡 直人; Kumar Mishra, A; Ametani, A
    153(4) 485 - 492, 2006
  • 2垂直導体プローブによる過渡水平電界の測定
    長岡 直人; 浅野; 馬場,雨谷
    電気学会論文誌B, 126B(11) 1171 - 1177, 2006
  • FDTD Simulation of A Horizontal Grounding Electrode and Its Equivalent Circuit Modeling
    長岡 直人; M. Tsumura; H. Yamamoto; Y. Baba; N. Nagaoka; A. Ametani
    2006
  • FDTD Simulation of Lightning-Induced Voltages on An Overhead Wire Above Lossy Ground
    長岡 直人; K. Okazawa; Y. Oka; M. Shimazoe; Y. Baba; N. Nagaoka; A. Ametani
    2006
  • Effective control method of power compensator with Lithium-Ion battery for d.c. railway system
    長岡 直人; N. Nagaoka; M. Sadakiyo; N. Mori; A. Ametani; S. Umeda; J. Ishii
    2006
  • Switching Surge Characteristics in a 500kV Gas-Insulated Substation
    長岡 直人; A. Ametani; S. Yoshizaki; T. Goto; N. Nagaoka; H. Omura
    2006
  • Fault Transient Calculation by Frequency-Domain
    長岡 直人
    2006
  • Power Compensator using Lithium-Ion Battery for DC railway and its Simulation by EMTP
    長岡 直人; Nagaoka, N; Oue, H; Sadakiyo, M; Mori, N; Ametani, A; Umeda, S; Ishii, J
    2006
  • FDTD simulation of a horizontal grounding electrode and modeling of its equivalent circuit
    長岡 直人; M. Tsumura; Y. Baba; N. Nagaoka; A. Ametani
    48(4) 817 - 825, 2006
  • ２垂直導体プローブによる過渡水平電界の測定
    長岡 直人; 浅野修一; 馬場吉弘; 森延孝; 長岡直人; 雨谷昭弘
    電気学会論文誌B, 126(11) 1171 - 1177, 2006
  • インバータサージの伝搬と電動機内電圧の解析
    長岡 直人; 辻孝誠; 和田耕太郎; 武藤浩隆; 大塚久; 八代長生; 長岡直人
    電気学会論文誌D, 126(6) 771 - 777, 2006
  • Frequency-dependent distributed-parameter modeling of counterpoise by time-domain fitting
    長岡 直人; A. K. Mishra; N. Nagaoka; A. Ametani
    153(4) 485 - 492, 2006
  • A frequency dependent transmission line model for a counterpoise
    IEEJ Trans. on Elect. and Electronic Eng., 1(1) 14 - 23, 2006
  • Frequency-dependent distributed-parameter modelling of counterpoise by time-domain fitting, IEE Proceedings: Generation
    IEE Proceedings: Generation, Transmission and Distribution, 153(4) 485 - 492, 2006
  • FDTD Simulation of A Horizontal Grounding Electrode and Its Equivalent Circuit Modeling
    Int. Conf. Lightning Protection, No. V-10, 2006
  • FDTD Simulation of Lightning-Induced Voltages on An Overhead Wire Above Lossy Ground
    Int. Conf. Lightning Protection, No.III-8, 2006
  • Effective control method of power compensator with Lithium-Ion battery for d.c. railway system
    Proc. University Power Engineering Conference CD, Session FAT14c, 2006
  • Switching Surge Characteristics in a 500kV Gas-Insulated Substation
    Proc. University Power Engineering Conference CD, Session FAT12, 2006
  • Fault Transient Calculation by Frequency-Domain
    ICEE2006, CD, 2006
  • Power Compensator using Lithium-Ion Battery for DC railway and its Simulation by EMTP
    63rd IEEE Vehicular Technology Conference CD, 6P-9, 2006
  • FDTD simulation of a horizontal grounding electrode and modeling of its equivalent circuit
    IEEE Trans. Electromagnetic Compatibility, 48(4) 817 - 825, 2006
  • Frequency-dependent distributed-parameter modeling of counterpoise by time-domain fitting
    IEE Proc.-Gener.Transm.Distrib., 153(4) 485 - 492, 2006
  • Modeling of thin wires in a lossy medium for FDTD simulations
    Y Baba; N Nagaoka; A Ametani
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 47(1) 54 - 60, Feb. 2005
    DOI URL
  • Transient Characteristics of a Coaxial Cable-Experimental and Analytical Observations
    長岡 直人; A. Ametani; N. Taki; N. Nagaoka
    136 - 155, 2005
  • Modeling of Incoming Lightning Surges into a House in a Low-Voltage Distribution System
    長岡 直人; A. Ametani; K. Hashimoto; N. Nagaoka
    63 - 70, 2005
  • Energy Storage of Regenerated Power on DC Railway System Using Lithium-ion Battery
    長岡 直人; S. Umeda; J. Ishii; N. Nagaoka; H. Oue; N. Mori; A. Ametani
    455 - 460, 2005
  • Simple Model of Self and Mutual Impedances for Coils on Ferromagnetic Cores
    長岡 直人; N. Nagaoka; D.J. Wilcox
    2005
  • Evaluation of Soil Parameters Using Two Parallel Electrodes
    長岡 直人; T. Yoshimura; D. Sato; N. Nagaoka; Y. Baba; A. Ametani
    2005
  • Transient Analysis of Grounding Electrodes Using the Finite-Difference Time-Domain Method
    長岡 直人; Y. Baba; N. Nagaoka; A. Ametani
    2005
  • Simultaneous Measurements of Harmonic on Distribution System Using Portable Instruments
    長岡 直人; T. Miki; A. Mizutani; N. Nagaoka; A. Ametani
    2005
  • A Study of an Inter-phase Lightning Surge in a Substation
    長岡 直人; A. Ametani; N. Nagaoka; T. Funabashi; K. Shimizu; H. Tamon
    2005
  • Tower Structure Effect on a Back-Flashover Phase
    長岡 直人; A. Ametani; N. Nagaoka; T. Funabashi; N. Inoue
    2005
  • A Frequency Dependent Transmission Line Model for a Counterpoise
    長岡 直人; A. K. Mishra; N. Nagaoka; A. Ametani
    2005
  • Simultaneous Measurement of Harmonics by a New Measuring Method
    長岡 直人; T. Miki; A. Mizutani; N. Nagaoka; A. Ametani
    2005
  • Modeling of a Buried Conductor for an Electromagnetic Transient Simulation
    長岡 直人; D. Soyama; Y. Ishibashi; N. Nagaoka; A. Ametani
    2005
  • Transient Characteristics of a Coaxial Cable-Experimental and Analytical Observations
    Proc. EEUG 2005, 136 - 155, 2005
  • Modeling of Incoming Lightning Surges into a House in a Low-Voltage Distribution System
    Proc. EEUG 2005, 63 - 70, 2005
  • Energy Storage of Regenerated Power on DC Railway System Using Lithium-ion Battery
    Proc. IPEC, 455 - 460, 2005
  • Simple Model of Self and Mutual Impedances for Coils on Ferromagnetic Cores
    Proc. UPEC 2005, No. 171, 2005
  • Evaluation of Soil Parameters Using Two Parallel Electrodes
    Proc. UPEC 2005, No. 182, 2005
  • Transient Analysis of Grounding Electrodes Using the Finite-Difference Time-Domain Method
    Proc. UPEC 2005, No. 175, 2005
  • Simultaneous Measurements of Harmonic on Distribution System Using Portable Instruments
    Proc. UPEC 2005, No. 186, 2005
  • A Study of an Inter-phase Lightning Surge in a Substation
    Proc. UPEC 2005, No. 59, 2005
  • Tower Structure Effect on a Back-Flashover Phase
    Proc. IPST 2005, no.190, 2005
  • A Frequency Dependent Transmission Line Model for a Counterpoise
    Proc. ICEE2005, no. SM1-0, 2005
  • Simultaneous Measurement of Harmonics by a New Measuring Method
    Proc. ICEE2005 CD, TD2-07, 2005
  • Modeling of a Buried Conductor for an Electromagnetic Transient Simulation
    Proc. ICEE2005 CD, SM1-04, 2005
  • Modeling of thin wires in a lossy medium for FDTD simulations
    IEEE Trans. Electromagnetic Compatibility, 47(1) 54 - 60, 2005
  • Semiconducting layer impedance and its effect on cable wave-propagation and transient characteristics
    A Ametani; Y Miyamoto; N Nagaoka
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 19(4) 1523 - 1531, Oct. 2004
    DOI URL
  • Transient analysis of a cable with low-conducting layers by a finite-difference time-domain method
    Y Baba; N Tanabe; N Nagaoka; A Ametani
    IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 46(3) 488 - 493, Aug. 2004
    DOI URL
  • Switching surge characteristics in a gas-insulated substations in particular reference to low-voltage control circuits
    長岡 直人; A. Ametani; K. Ohtsuki; N. Nagaoka
    2004
  • New EDLC charging system for photovoltaic generation part I: Numerical simulation
    長岡 直人; N. Nagaoka; A. Miyamoto; A. Ametani
    669 , 2004
  • Development of harmonic measuring system using PIC
    長岡 直人; N. Nagaoka; T. Miki; A. Mizutani; A. Ametani
    929 , 2004
  • Transient voltages induced to an overhead cable from a buried conductor
    長岡 直人; A. Ametani; T. Tachimori; N. Mori; N. Nagaoka
    366 - 370, 2004
  • A ladder circuit based modeling of grounding electrode
    長岡 直人; A. Mishra; N. Nagaoka; A. Ametani
    366 - 370, 2004
  • Impedance derivation and wave propagation characteristics of pipe-enclosed and tunnel-installed cables
    N Amekawa; N Nagaoka; A Ametani
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 19(1) 380 - 386, Jan. 2004
    DOI URL
  • Switching surge characteristics in a gas-insulated substations in particular reference to low-voltage control circuits
    UPEC2004, 2004
  • New EDLC charging system for photovoltaic generation part I: Numerical simulation
    Proc. UPEC2004 CD, 669 , 2004
  • Development of harmonic measuring system using PIC
    Proc. UPEC2004, 929 , 2004
  • Transient voltages induced to an overhead cable from a buried conductor
    Proc. ICEE2004, 366 - 370, 2004
  • A ladder circuit based modeling of grounding electrode
    Proc. ICEE2004, 366 - 370, 2004
  • Transient analysis of a cable with low-conducting layers by a finite-difference time-domain method
    IEEE Trans. Electromagnetic Compatibility, 46(3) 488 - 493, 2004
  • Semiconducting layer impedance and its effect on cable wave-propagation and transient characteristics
    IEEE Trans. Power Delivery, 19(4) 1523 - 1531, 2004
  • Impedance derivation and wave propagation characteristics of pipe-enclosed and tunnel-installed cables
    IEEE Trans. on Power Derivery, 19(1) 380 - 386, 2004
  • Numerical model of discharge characteristic between contacts
    長岡 直人; N. Nagaoka; A. Ametani
    88 , 2003
  • Numerical Analysis of Wave Propagation Characteristics on a Buried Horizontal Conductor by an FDTD Method
    Yoshihiro Baba; Mohamed Nayel; Naoto Nagaoka; Akihiro Ametani; Shozo Sekioka
    IEEJ Transactions on Power and Energy, 123(11) 1319 - 1327, 2003
    DOI URL
  • Induced surge characteristics from a counterpoise to an overhead loop circuit
    長岡 直人; T.Sonoda; Y.Takeuchi; S.Sekioka; A.Ametani
    123(11) 1319 - 1327, 2003
  • A study of transient characteristics of two horizontal gounding rods
    長岡 直人
    同志社大学理工学研究所報告, 44(3) 193 - 199, 2003
  • Numerical analysis of grounding resistance of buried thin wires by the FDTD method
    長岡 直人; Y.Baba; A.Ametani
    7(6), 2003
  • Experimental investigation of transient voltage and current characteristics on a grounding mesh
    長岡 直人; A.Ametani T.Sonoda; S.Sekioka
    7(3), 2003
  • Development of data-editor for Electro-Magnetic Transients Program
    長岡 直人; D.Tatsuda; A.Ametani
    1(3), 2003
  • Simple equivalent circuit of air core coil for transient simulation
    長岡 直人; S.Mizuno; K. Tanigaki; A.Ametani
    2 549 - 552, 2003
  • Switching overvoltage reduction by multiple resistor and phase-controlled circuit breaker
    長岡 直人; A.Ametani; N.Inoue, N,Mori
    2 549 - 552, 2003
  • Derivation of a semiconducting layer and its effect on wave propagation characteristics on a cable
    長岡 直人; N.Amekawa; Y.Baba; A.Ametani
    150(4) 434 - 440, 2003
  • FDTD法による斜行導体と円筒導体上サージの高精度解析
    長岡 直人; 田邊修大; 馬場吉弘; 雨谷昭弘
    電気学会論文誌B, 123(6) 725 - 733, 2003
  • Experimental investigation on a transient induced voltage to an overhead control cable from a grounding circuit
    長岡 直人; A.Ametani; T Okumura; N,.Mori
    2003
  • クロスボンドケーブルの波形伝搬特性に関する一検討
    長岡 直人
    電気学会論文誌B, 123(3) 395 - 401, 2003
  • Numerical model of discharge characteristic between contacts
    Proc. Int. Conf. on Electricity Distribution (CIRED) CD, 88 , 2003
  • Numerical analysis of wave propagation characteristics on a buried horizontal conductor by an FDTD method
    IEEJ Trans, PE, 123(11) 1319 - 1327, 2003
  • Induced surge characteristics from a counterpoise to an overhead loop circuit
    IEEJ Trans. PE, 123(11) 1319 - 1327, 2003
  • A study of transient characteristics of two horizontal gounding rods
    The science and engineering review of Doshisha University, 44(3) 193 - 199, 2003
  • Numerical analysis of grounding resistance of buried thin wires by the FDTD method
    IPST 2003 Proc., 7(6), 2003
  • Experimental investigation of transient voltage and current characteristics on a grounding mesh
    IPST 2003 Proc., 7(3), 2003
  • Development of data-editor for Electro-Magnetic Transients Program
    IPST 2003 Proc., 1(3), 2003
  • Simple equivalent circuit of air core coil for transient simulation
    UPEC 2003 Proc., 2 549 - 552, 2003
  • Switching overvoltage reduction by multiple resistor and phase-controlled circuit breaker
    UPEC 2003 Proc., 2 549 - 552, 2003
  • Derivation of a semiconductiong layer and its effect on wave propagation characteristics on a cable
    IEE Proc. Generation Trnasmisstion &. Distribution, 150(4) 434 - 440, 2003
  • Experimental investigation on a transient induced voltage to an overhead control cable from a grounding circuit
    Proc. CRIED., 2003
  • Numerical electromagnetic field analysis of archorn voltages during a back-flashover on a 500kV twin-circuit line
    長岡 直人; T. Mozumi; Y. Baba; M. Ishii; A.Ametani
    18(1) 307 - 314, 2002
  • A basic study of switching overvoltage reduction by means of multiple resistor circuit breaker
    長岡 直人; A. Ametani; N. Inoue; M. Yogo; N. Mori
    881 - 884, 2002
  • A Study on a Mutual Grounding Impedance and Its Transient Characteristic
    長岡 直人; M.Nayel; A.Ametani; Y.Baba; S.Sekioka
    OR31(7), 2002
  • Magnetizing Circuit Model for EMTP including Voltage Dependence Characteristic
    長岡 直人; N.Nagaoka; A.Ametani
    OR31(6), 2002
  • Investigation of Flashover Phases in a Lightning Surge by New Archorn and Tower Models
    長岡 直人; A.Ametani; K.Ueno; T.Funabashi
    OR31(2), 2002
  • Transfer Function Composition in Frequency Domain with Recursive Least Square Method and Weighting Function
    長岡 直人; S.Nishi; A.Ametani
    903 - 907, 2002
  • Modelling of Slanting Conductors for Surge Analysis with a FDTD Method
    長岡 直人; Y.Baba; T.Tanabe; A.Ametani
    184 - 187, 2002
  • Wave Propagation Characteristic of a Crossbonded Cable
    長岡 直人; A.Ametani; Y.Miyamoto; N.Nagaoka
    2151 - 2154, 2002
  • Numerical Simulation of Islanding Detection for Distribution System with Multiple Dispersed Generators
    長岡 直人; N.Shoji; A.Ametani
    262 - 265, 2002
  • Calculation of an Induced Voltage to an Overhead Loop from a Grounding System
    長岡 直人; M.Nayel; A.Ametani
    同志社大学理工学研究報告, 43(3) 175 - 180, 2002
  • Numerical electromagnetic field analysis of archorn voltages during a back-flashover on a 500kV twin-circuit line
    IEEE Trans. Power Delivery, 18(1) 307 - 314, 2002
  • A basic study of switching overvoltage reduction by measn of multiple resistor circuit breaker
    Proc. ICEE, 881 - 884, 2002
  • A Study on a Mutual Grounding Impedance and Its Transient Characteristic
    IEEE/PES T&D 2002, OR31(7), 2002
  • Magnetizing Circuit Model for EMTP including Voltage Dependence Characteristic
    IEEE/PES T&D 2002, OR31(6), 2002
  • Investigation of Flashover Phases in a Lightning Surge by New Archorn and Tower Models
    IEEE/PES T&D 2002, OR31(2), 2002
  • Transfer Function Composition in Frequency Domain with Recursive Least Square Method and Weighting Function
    Universities Power Engineering Conf., 903 - 907, 2002
  • Modelling of Slanting Conductors for Surge Analysis with a FDTD Method
    Proc. Universities Power Engineering Conf., 184 - 187, 2002
  • Wave Propagation Characteristic of a Crossbonded Cable
    Proc. Int. Conf. on Elect. Eng., 2151 - 2154, 2002
  • Numerical Simulation of Islanding Detection for Distribution System with Multiple Dispersed Generators
    Proc. Int. Conf. on Elect. Eng., 262 - 265, 2002
  • Calculation of an Induced Voltage to an Overhead Loop from a Grounding System
    43(3) 175 - 180, 2002
  • Wave propagation characteristics on an overhead conductor above snow
    A Ametani; N Nagaoka; R Koide
    ELECTRICAL ENGINEERING IN JAPAN, SCRIPTA TECHNICA-JOHN WILEY & SONS, 134(3) 26 - 33, Feb. 2001
  • Numerical Electromagnetic Field Analysis on a Transient Response of a Cable with a Two-Layer Conductor
    長岡 直人; Y.Baba; N.Tanabe; A.Ametani
    2001
  • Harmonic Current Measurement using Leakage Flux of Transformer
    長岡 直人; S.Nishi; A.Ametani
    2001
  • Numerical Electromagnetic Field Analysis of Insulator Voltages during a Back-Flashover on a Transmission Tower
    長岡 直人; Y.Baba; T.Mozumi; A.Ametani; M.Ishii
    1271 - 1275, 2001
  • Numerical Model of Ni-MH Battery in Transient State and Remaining Capacity Estimation
    長岡 直人; S.Imashuku; A.Ametani
    1502 - 1506, 2001
  • An Empirical Formula for Surge Impedance of a Grounding Conductor along a Reinforced Concrete Pole in a Distribution Line
    長岡 直人; T.Mozumi; A.Ametani; S.Sekioka
    603 - 608, 2001
  • FDTD法による2相導体を有するケーブルの過渡応答解析
    長岡 直人; 田邉修大; 馬場吉弘; 雨谷昭弘
    電気学会論文誌Ｂ, 121B(11) 1566 - 1571, 2001
  • 誘導負荷遮断時に生ずるアークの継続時間推定法
    長岡 直人; 土屋武士; 雨谷昭弘
    同志社大学理工学研究報告, 42(2) 100 - 105, 2001
  • 1100kV送電線における磁界検出型サージ波形非接触測定法のフィールドテスト
    長岡 直人; 山吹巧一; 雨谷昭弘; 成田知己; 山田剛史; 財満英一
    同志社大学理工学研究報告, 42(2) 94 - 99, 2001
  • 高構造物による冬季雷遮へい範囲の電荷重畳法による検討
    長岡 直人; 園田敏雄; 馬場吉弘; 雨谷昭弘
    同志社大学理工学研究報告, 42(2) 90 - 93, 2001
  • 変電所埋設地線のインパルス電流における接地抵抗特性について
    長岡 直人; 園田敏雄; 関岡昇三; 雨谷昭弘
    電気学会論文誌Ｂ, 121B(5) 671 - 676, 2001
  • Numerical Electromagnetic Field Analysis on a Transient Response of a Cable with a Two-Layer Conductor
    Universities Power Engineering Conf CD, 2001
  • Harmonic Current Measurement using Leakage Flux of Transformer
    Universities Power Engineering Conf CD, 2001
  • Numerical Electromagnetic Field Analysis of Insulator Voltages during a Back-Flashover on a Transmission Tower
    Proc. Int. Conf. on Elect. Eng., 1271 - 1275, 2001
  • Numerical Model of Ni-MH Battery in Transient State and Remaining Capacity Estimation
    Proc. Int. Conf. on Elect. Eng., 1502 - 1506, 2001
  • An Empirical Formula for Surge Impedance of a Grounding Conductor along a Reinforced Concrete Pole in a Distribution Line
    Proc. IPST'2001, 603 - 608, 2001
  • Wave propagation characteristics on an overhead conductor above snow
    Akihiro Ametani; Naoto Nagaoka; Ryuji Koide
    Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), 134(3) 26 - 33, 01 Jan. 2001
    DOI URL
  • Numerical Electromagnetic Field Analysis of Unit Step Response Characteristics of Impulse Voltage Measuring Systems by Method of Moments
    長岡 直人; Y.Baba; M.Ishii; A.Ametani
    2000
  • Contactless Measurement of Surge Waveform on 1100kV Transmission Line using Two Closed Loops
    長岡 直人; K.Yamabuki; A.Ametani; T.Narita; T.Yamada; E.Zaima
    2000
  • An Analysis of Induced Voltage on Finite Length Crossing Wires
    長岡 直人; H.Okano; A.Ametani
    2000
  • A Study of the Effect of Snow on Surge Characteristics
    長岡 直人; A.Ametani; R.Koide
    2000
  • Numerical Electromagnetic Field Analysis of Thin-Wire Structures on a Perfectly Conduction ground by the Method of Moments in Time Domain
    長岡 直人; T.Mozumi; Y.Baba; A.Ametani
    792 - 795, 2000
  • A Transformer Magnetizing Circuit Model including Frequency Characteristics
    長岡 直人; K.Ueno; A.Ametani
    38 - 41, 2000
  • EMTP Modeling Tips from a Viewpoint of Users
    長岡 直人; A.Ametani
    30 - 33, 2000
  • Modeling of Frequency-Dependent Lines and Cables by Means of Algebra Processing Program
    長岡 直人; A.Ametani
    25LP3, 2000
  • Development of Contactless Measuring Method of Transient Voltage on Cable System
    長岡 直人; K.Yamabuki; A.Ametani
    24PS2, 2000
  • PN Diode Model Based on Divided Charge Distgribution for EMTP-Type Simulators
    長岡 直人; K.Yamamoto; A.Ametani
    電気学会論文誌Ｂ, 120B(2) 271 - 277, 2000
  • 積雪時の架空線波形伝搬特性
    長岡 直人; 雨谷昭弘; 小出隆司
    電気学会論文誌Ｂ, 120B(12) 1664 - 1670, 2000
  • Wave Propagation Characteristics of Iron Conductors in an Intelligent Building
    長岡 直人
    電気学会論文誌Ｂ, 120B(2) 271 - 277, 2000
  • Numerical Electromagnetic Field Analysis of Unit Step Response Characteristics of Impulse Voltage Measuring Systems by Method of Moments
    Universities Power Engineering Conf. CD, 2000
  • Contactless Measurement of Surge Waveform on 1100kV Transmission Line using Two Closed Loops
    Universities Power Engineering Conf CD, 2000
  • An Analysis of Induced Voltage on Finite Length Crossing Wires
    Universities Power Engineering Conf., 2000
  • A Study of the Effect of Snow on Surge Characteristics
    Universities Power Engineering Conf., 2000
  • Numerical Electromagnetic Field Analysis of Thin-Wire Structures on a Perfectly Conduction ground by the Method of Moments in Time Domain
    Proc. Int. Conf. on Elect. Eng., 792 - 795, 2000
  • A Transformer Magnetizing Circuit Model including Frequency Characteristics
    Proc. Int. Conf. on Elect. Eng., 38 - 41, 2000
  • EMTP Modeling Tips from a Viewpoint of Users
    Proc. Int. Conf. on Elect. Eng., 30 - 33, 2000
  • Modeling of Frequency-Dependent Lines and Cables by Means of Algebra Processing Program
    Proc. IEEE PES 2000 Winter Meeting, 25LP3, 2000
  • Development of Contactless Measuring Method of Transient Voltage on Cable System
    Proc. IEEE PES 2000 Winter Meeting, 24PS2, 2000
  • PN Diode Model Based on Divided Charge Distgribution for EMTP-Type Simulators
    120B(2) 271 - 277, 2000
  • Wave Propagation Characteristics of Iron Conductors in an Intelligent Building
    120B(2) 271 - 277, 2000
  • Transient Induced Current to a Control System from a Grounding Network in a Substation
    長岡 直人; S.Yamaguchi; A.Ametani
    543 - 546, 1999
  • Modeling of Frequency Dependent Line by Means of Algebra Processing Program
    長岡 直人; A.Ametani
    521 - 524, 1999
  • A Basic Study on a Spike-Like Surge due to Circuit-Breaker Operation
    長岡 直人; A.Ametani; N.Fukuda
    127 - 130, 1999
  • Effect of Snow on wave Propagation Characteristics on an Overhead Single Conductor
    長岡 直人; R.Koide; N.Nagaoka
    3 55 - 58, 1999
  • Generalized Discharge Lamp Model using Frequency Transfer Function
    長岡 直人; K.Sanai; N.Nagaoka; A.Ametani
    3 55 - 58, 1999
  • 電力系統の過渡現象解析Ⅲ，EMTP制御系モデルとその応用
    長岡 直人
    電気評論, 84(12) 55 - 60, 1999
  • 確率特性を考慮した線電極コロナ簡易モデル
    長岡 直人
    電気学会論文誌Ｂ, 119B(12) 1545 - 1551, 1999
  • Na-Tl-In形メタルハライドランプの発光特性
    長岡 直人
    同志社大学理工学研究報告, 40(3) 166 - 170, 1999
  • Transient Induced Current to a Control System from a Grounding Network in a Substation
    Proc. Universities Power Engineering Conf., 543 - 546, 1999
  • Modeling of Frequency Dependent Line by Means of Algebra Processing Program
    Proc. Universities Power Engineering Conf., 521 - 524, 1999
  • A Basic Study on a Spike-Like Surge due to Circuit-Breaker Operation
    Proc. Universities Power Engineering Conf., 127 - 130, 1999
  • Effect of Snow on wave Propagation Characteristics on an Overhead Single Conductor
    Proc. Int. Conf. on Elect. Eng., 3 55 - 58, 1999
  • Generalized Discharge Lamp Model using Frequency Transfer Function
    Proc. Int. Conf. on Elect. Eng, 3 55 - 58, 1999
  • 電力システムのパソコンシミュレーション,第7章入出力データの例,7.1節架空線定数
    長岡 直人
    OHM1998年9月別冊、オーム社, OHM1998(9) 152 - 160, 1998
  • 電力システムのパソコンシミュレーション,第5章計算例でみるEMTPの精度,5.8節蛍光灯のシミュレーション
    長岡 直人
    OHM1998年9月別冊、オーム社, OHM1998(9) 95 - 100, 1998
  • 電力システムのパソコンシミュレーション,第5章計算例でみるEMTPの精度,5.1節開閉サージ
    長岡 直人
    OHM1998年9月別冊、オーム社, OHM1998(9) 52 - 56, 1998
  • 電力システムのパソコンシミュレーション,第2章原理・構造から見たEMTP
    長岡 直人
    OHM1998年9月別冊，オーム社, OHM1998(9) 13 - 24, 1998
  • Switching Surge Overvoltage in the Feeding System of a MAGLEV Train
    長岡 直人
    Electrical Engineering in Japan, 123(4) 58 - 65, 1998
  • Not entered
    OHM, Ohmsha, OHM1998(9) 152 - 160, 1998
  • Not entered
    OHM, Ohmsha, OHM1998(9) 95 - 100, 1998
  • Not entered
    OHM, Ohmsha, OHM1998(9) 52 - 56, 1998
  • Not entered
    OHM, Ohmsha, OHM1998(9) 13 - 24, 1998
  • Switching Surge Overvoltage in the Feeding System of a MAGLEV Train
    Electrical Engineering in Japan, 123(4) 58 - 65, 1998
  • Further improvements to a phase-domain ARMA line model in terms of convolution, steady-state initialization, and stability
    T Noda; N Nagaoka; A Ametani
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 12(3) 1327 - 1334, Jul. 1997
  • A simple and efficient method for including frequency-dependent effects in transmission line transient analysis
    A Ametani; N Nagaoka; T Noda; T Matsuura
    INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, ELSEVIER SCI LTD, 19(4) 255 - 261, May 1997
  • A simple and efficient method for including frequency-dependent effects in transmission line transient analysis
    A Ametani; N Nagaoka; T Noda; T Matsuura
    INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, ELSEVIER SCI LTD, 19(4) 255 - 261, May 1997
  • ZnOアレスタによる低電圧配電系過電圧保護に関する一検討
    長岡 直人
    同志社大学理工学研究報告, 37(4) 265 - 278, 1997
  • Modeling Method of Fluorescent Lamp using Statistical Analysis Method
    長岡 直人
    Journal of Light & Visual Environment, 21(1) 25 - 32, 1997
  • 線路サージ計算に用いる波頭長依存コロナモデル
    長岡 直人
    電気学会論文誌B, 117(6) 768 - 775, 1997
  • 磁気浮上式鉄道のき電系における雷サージ過電圧
    長岡 直人
    電気学会論文誌B, 117(4) 519 - 524, 1997
  • 磁気浮上式鉄道のき電系における開閉サージ過電圧
    長岡 直人
    電気学会論文誌B, 117-B(5) 724 - 730, 1997
  • Further Improvements to a Phase-Domain ARMA Line Model in Terms of Convolutions，Steady-State Initialization and Stability
    IEEE Trans. on Power Delivery, 12(3) 1327 - 1334, 1997
  • Modeling Method of Fluorescent Lamp using Statistical Analysis Method
    Journal of Light & Visual Environment, 21(1) 25 - 32, 1997
  • Not entered
    Trans. IEE of Japan, 117(6) 768 - 775, 1997
  • Lightning Surge Overvoltages on a Feeding System of a MAGLEV Train
    Trans. IEE of Japan, 117(4) 519 - 524, 1997
  • Switching Surge Overuoltages on a Feeding Systam of MAGLEV Train
    Trams. IEE of Japan, 117-B(5) 724 - 730, 1997
  • 相領域ARMAモデルを用いた地絡サージ計算
    長岡 直人
    電気学会論文誌Ｂ, 116B(11) 1409 - 1414, 1996
  • 周波数依存効果を考慮した線路サージ計算法
    長岡 直人
    電気学会論文誌B, 116-B(6) 706 - 711, 1996
  • Phase Domain Modeling of Frequency-Dependent Transmission Lines by Means of an ARMA Model
    長岡 直人
    IEEE Trans. on Power Delively, 11(1) 401 - 4011, 1996
  • A Simplified Calculation Method of a Cina Surge Consideving the Froquency-Dependent Eftect
    Traus, IEE of Japan, 116-B(6) 706 - 711, 1996
  • Phase Domain Modeling of Frequency-Dependent Transmission Lines by Means of an ARMA Model
    IEEE Trans. on Power Delively, 11(1) 401 - 4011, 1996
  • インテリジェントビルでの雷撃に伴う過渡誘導電圧の検討
    長岡 直人
    電気学会論文誌B, 115(7) 832 - 838, 1995
  • 統計的手法を用いた蛍光ランプのモデリング法
    長岡 直人
    照明学会誌, 79(2) 93 - 100, 1995
  • Investigation of Transiont Induced Voltages due to Cightning in an Intelligent Building
    Trans. IEE of Japan, 115(7) 832 - 838, 1995
  • Modeling Method of Fluorescent Lamp Using Statistical Analysis Method
    J. Illum. Engng, Inst. Jpn, 79(2) 93 - 100, 1995
  • 動特性を考慮した直流遮断アークの数値計算モデル
    長岡 直人
    電気設備学会誌, 14(12) 1178 - 1189, 1994
  • 線形化最小二乗法によるARMA過渡現象計算モデルの開発
    長岡 直人
    電気学会論文誌B, 114_B(4) 396 - 402, 1994
  • 周波数領域二端子対回路伝達関数推定の一手法
    長岡 直人
    電気学会論文誌B, 114_B(2) 167 - 172, 1994
  • 周波数変換法によるサージ入力波形推定における誤差低減法の検討
    長岡 直人
    電気学会論文誌B, 114_B(1) 79 - 84, 1994
  • A Numerical Model of a D. C. Interruption Arc Considering its Dynamic Characteristic
    J. IEIE of Japan, 14(12) 1178 - 1189, 1994
  • Development of ARMA Models for a Transient Calculation using Liearized Least-Squares Method
    Trans. IEE of JAPAN, 114_B(4) 396 - 402, 1994
  • An Estimating Method of a Two Terminal-Pair Network's Tranfer-Function in Frequency Domain
    Trans. IEE of Japan, 114_B(2) 167 - 172, 1994
  • An Error Correction Method for an Input Waveform Estimate by Frequency Transform Method
    Trans. IEE of Japan, 114_B(1) 79 - 84, 1994
  • クリートを考慮したケーブルシースサージ計算法
    長岡 直人
    電気学会論文誌B, 113-B(10) 1113 - 1119, 1993
  • A Calculation Method of Cable Sheath Surges Considering Cleats
    Trans. IEE of Japan, 113-B(10) 1113 - 1119, 1993
  • A STUDY OF ZERO-SEQUENCE CURRENT INDUCED IN A CABLE SYSTEM
    H NAKANISHI; H INOGUCHI; HASHIMOTO, I; Y ITO; H TAKEHANA; N NAGAOKA; A AMETANI
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 6(4) 1352 - 1358, Oct. 1991
  • A STUDY OF ZERO-SEQUENCE CURRENT INDUCED IN A CABLE SYSTEM
    H NAKANISHI; H INOGUCHI; HASHIMOTO, I; Y ITO; H TAKEHANA; N NAGAOKA; A AMETANI
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 6(4) 1352 - 1358, Oct. 1991
  • ビル配電系統における高調波シミュレーションと高調波抑制法
    長岡 直人
    電気設備学会誌, 11(2) 99 - 109, 1991
  • 非線形インダクタンスを用いたフラッシオーバモデル
    長岡 直人
    電気学会論文誌, 111-B(5) 529 - 534, 1991
  • 周波数依存鉄塔モデルの開発
    長岡 直人
    電気学会論文誌, 111-B(1) 51 - 56, 1991
  • 集中定数回路によるガス絶縁管路タンクサージ解析
    長岡 直人
    電気学会論文誌, 111_B(11) 1185 - 1191, 1991
  • 洞道布設クロスボンドケーブルシース過渡電圧特性
    長岡 直人
    電気学会論文誌, 111_B(7) 784 - 740, 1991
  • Harmonic Current Simulation and Reduction of a Distribution System within a Building
    J. IEEE of Japan, 11(2) 99 - 109, 1991
  • A Feashover Model Using a Nonlinear Inductance
    Trans. IEE of Japan, 111-B(5) 529 - 534, 1991
  • A Development of Frequency-Dependent Tower Model
    B Trans. IEE of Japan, 111-B(1) 51 - 56, 1991
  • Surge Analysis on the Tank of a Gas Insulated Line using Lumped Element Circuits
    B Trans. IEE of Japan, 111_B(11) 1185 - 1191, 1991
  • Transient Sheath Voltage Characteristic of a Crossbonded Cable
    B Trans. IEE of Japan, 111_B(7) 784 - 740, 1991
  • TRANSIENT ANALYSIS OF A CROSS-BONDED CABLE SYSTEM UNDERNEATH A BRIDGE
    Y ITOH; N NAGAOKA; A AMETANI
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 5(2) 527 - 532, Apr. 1990
  • 整流回路を含む配電系統での電流高調波解析
    長岡 直人
    同志社大学理工学研究報告, 30(4) 295 - 309, 1990
  • Transient Analysis of a Crossbonded Cable System Underneath a Bridge
    IEEE Trans. on Power Delirery, 5(2) 527 - 532, 1990
  • Numerical Modeling of a ZnO Arresters for Surges with Steep Wavefronts
    長岡 直人
    Ceramic Trans., (3) 266 - 273, 1989
  • Numerical Modeling of a ZnO Arresters for Surges with Steep Wavefronts
    Ceramic Trans., (3) 266 - 273, 1989
  • A DEVELOPMENT OF A GENERALIZED FREQUENCY-DOMAIN TRANSIENT PROGRAM - FTP
    N NAGAOKA; A AMETANI
    IEEE TRANSACTIONS ON POWER DELIVERY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 3(4) 1996 - 2004, Oct. 1988
  • An Analysis of Operational Characteristics of High Frequency Inverters by EMTP
    長岡 直人
    IEEE PESC '88, 4(D2) 731 - 738, 1988
  • An Analysis of Operational Characteristics of High Frequency Inverters by EMTP
    IEEE PESC '88, 4(D2) 731 - 738, 1988
  • A Development of a Generalized Frequency -Domain Transient Program -FTP
    IEEE Trans. on Power Delivery, 3(4) 1996 - 2004, 1988
  • 部分放電特性に基づく複合絶縁体の寿命予測
    長岡 直人
    電気学会論文誌, 107_A(2) 81 - 87, 1987
  • Lightning Surge Calcalations Including Corona Effects Using a Two-Conductor Model
    長岡 直人
    Electric Power Research, 13(1) 31 - 41, 1987
  • Lifetime Estimation of a Composite Insulation Material Based on its Partial Discharge Characteristic
    A Trans. IEE of Japan, 107_A(2) 81 - 87, 1987
  • Lightning Surge Calcalations Including Corona Effects Using a Two-Conductor Model
    Electric Power Research, 13(1) 31 - 41, 1987
  • Ｔ分岐を有するガス絶縁管路のサージ解析
    長岡 直人
    同志社大学理工学研究報告, 27(2) 87 - 99, 1986
  • 部分放電自動計測システムの開発と複合絶縁体の部分放電位相特性
    長岡 直人
    同志社大学理工学研究報告, 26(4) 245 - 257, 1986
  • 2相回路モデルによる雷サージ解析
    長岡 直人
    電気学会論文誌, 106_B(5) 1185 - 1191, 1986
  • A Two-conductors Model of Calculating a Lighting Surge
    B Trans. IEE of Japan, 106_B(5) 1185 - 1191, 1986
  • POFケーブルにおけるサージ伝般特性
    長岡 直人
    電気学会論文誌, 105_B(8) 645 - 652, 1985
  • Surge Propagation Characteristics of a POF Cable
    B Trans. IEE of Japan, 105_B(8) 645 - 652, 1985
  • Ｚ変換による分布定数線路過渡現象の一計算法
    長岡 直人
    同志社大学理工学研究報告, 25(1) 24 - 31, 1984
  • 周波数変換法による非線形回路過渡現象の解析
    長岡 直人
    電気学会論文誌, 104_B(12) 817 - 824, 1984
  • An Analysis of Transients on a Nonlinear Circuit by a Frequency-Transform Method
    B Trans. IEE of Japan, 104_B(12) 817 - 824, 1984
  • Transient Calculations on Cossbonded Cables
    長岡 直人
    IEEE Trans. on Power Apparatus and Systems, 102(4) 779 - 787, 1983
  • Transient Calculations on Cossbonded Cables
    IEEE Trans. on Power Apparatus and Systems, 102(4) 779 - 787, 1983
  • パルス幅変調によるインバータの一方式
    長岡 直人
    同志社大学理工学研究報告, 23(1) 60 - 71, 1982
  • π型等価回路によるクロスボンドケーブルサージ計算
    長岡 直人
    同志社大学理工学研究報告, 23(1) 51 - 59, 1982
  • ケーブル過渡現象におけるシース接地の影響
    長岡 直人
    同志社大学理工学研究報告, 22(4) 230 - 238, 1982
  • インバータサージの伝搬と電動機内電圧
    長岡 直人; 辻孝誠; 和田耕太郎; 大塚久; 八代長生; 武藤浩隆
    第３５回電気電子絶縁材料シンポジウム予稿集, 169 - 172
  • Transient analysis of a buried horizontal conductor by an FDTD method
    長岡 直人; Y. Baba; M.Nayel; S.Sekioka; A.Ametani
    1 117 - 120
  • Propagation of Inverter Surge and Voltage Distribution in Motor Winding
    169 - 172
  • Transient analysis of a buried horizontal conductor by an FDTD method
    UPEC 2003 Proc., 1 117 - 120

Books etc

  • 電気・電子回路解析プログラムEMTP入門（第４章EMTPとTACS/MODELS）
    長岡 直人
    電気学会, 2000, Scholarly book

Presentations

  • A modeling method and EMTP simulations of an inverter surge
    NAGAOKA Naoto
    2012 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2012
  • An investigation of incoming lightning surges from a communication line
    NAGAOKA Naoto
    2012 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2012
  • Lightning surges on an overhead wire in the presence of corona: FDTD simulation of Wagner et al.'s experiment
    NAGAOKA Naoto
    2012 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2012
  • An estimation method of Li-ion battery impedance using z-transform
    NAGAOKA Naoto
    2012 IEEE 13th Workshop on Control and Modeling for Power Electronics (COMPEL), 2012
  • A frequency dependent circuit model of a wind turbine tower using transient response calculated by FDTD
    NAGAOKA Naoto
    2012 International Conference on Lightning Protection (ICLP), 2012
  • FDTD simulation of grounding electrodes considering soil ionization
    NAGAOKA Naoto
    2012 International Conference on Lightning Protection (ICLP), 2012
  • EMTP Simulation of Li-Ion Battery Including its Transient Characteristic
    NAGAOKA Naoto
    2012 European EMTP-ATP Conference, 2012
  • A Study on Dommel’s and Scott’s distortion-less Distributed Line Models in EMTP
    NAGAOKA Naoto
    2012 European EMTP-ATP Conference, 2012
  • Optimum Position of a Grounding Wire within a Building for Reduction of Lightning Surge Voltages
    NAGAOKA Naoto
    Proceedings of 2011 46th International Universities' Power Engineering Conference (UPEC), 2011
  • High Frequency Resonance of a Structure for PV panel
    NAGAOKA Naoto
    Proceedings of 2011 46th International Universities' Power Engineering Conference (UPEC), 2011
  • Application of a partial element equivalent circuit method to lightning surge analyses1
    NAGAOKA Naoto
    2011 7th Asia-Pacific International Conference on Lightning (APL), 2011
  • FDTD computation of lightning surges on overhead wires in the presence of corona discharge
    NAGAOKA Naoto
    2011 7th Asia-Pacific International Conference on Lightning (APL), 2011
  • Dynamic SOC Estimation of Li-Ion Battery
    NAGAOKA Naoto
    International Symposium on EMC and Transients in Infrastructures ISET 2011, 2011
  • FDTD calculation of lightning-induced voltages on an overhead two-wire distribution line
    NAGAOKA Naoto
    Proc. 2010 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2010
  • Modeling of corona discharge on a transmission line conductor struck by lightning for FDTD calculations
    NAGAOKA Naoto
    Proc. 2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC, 2010
  • An equivalent circuit of a transmission-line tower struck by lightning
    NAGAOKA Naoto
    Proc. Int. Conf. on Lightning Protection, 2010
  • Numerical estimation of mutual grounding impedance between building structure and loop electrode buried around building base
    NAGAOKA Naoto
    2010 45th International Universities Power Engineering Conference (UPEC), 2010
  • Effect of a covered conductor on induced voltage and wave propagation characteristics
    NAGAOKA Naoto
    Proc. Int. Workshop on High Voltage Engineering, 2010
  • Numerical analysis of lightning electromagnetic pulses using the constrained interpolation profile method
    NAGAOKA Naoto
    Proc. Int. Workshop on High Voltage Engineering, 2010
  • An EMTP model of a transmission tower struck by lightning
    NAGAOKA Naoto
    Proc. Int. Workshop on High Voltage Engineering, 2010
  • Surge analysis of thin wire structures using the TLM method
    NAGAOKA Naoto
    Proc. Int. Workshop on High Voltage Engineering, 2010
  • Application of Electro-Magnetic Transients Program EMTP to Electronic Circuit Simulation
    NAGAOKA Naoto
    International Symposium on EMC and Transients in Infrastructures ISET 2010, 2010
  • Application of a time-domain partial element equivalent circuit method to lightning surge analysis
    NAGAOKA Naoto
    2010 International Conference on Electrical Engineering / Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010
  • A Surge Analysis of a Cable System Composed of Submarine and Underground-Overhead cables
    NAGAOKA Naoto
    Proc. of the 44th International Universities Power Engineering Conference, 2009
  • An Investigation of an Equivalent Conductor Plate Representing Earth for a Surge Analysis
    NAGAOKA Naoto
    IPST 2009, 2009
  • Propagation Characteristics of Power Line Communication Signals Along a Power Cable
    NAGAOKA Naoto
    IPST 2009, 2009
  • Parameter Estimation of a Nonlinear EDLC Model for EMTP Simulation
    NAGAOKA Naoto
    IPST 2009, 2009
  • An Improved Arbitrary-Radius-Wire Representation for FDTD Electromagnetic and Surge Calculations
    NAGAOKA Naoto
    IPST 2009, 2009
  • Induced Voltages to Wires Installed within a Building due to Direct Lightning
    NAGAOKA Naoto
    IPST 2009, 2009
  • A Control Method of Charging and Discharging Lithium-Ion Battery to Prolong Its Lifetime in Power Compensator for DC Railway System
    NAGAOKA Naoto
    Proc. University Power Engineering Conference CD, 2008
  • Automatic Equivalent-Circuit Estimation System for Lithium-Ion Battery
    NAGAOKA Naoto
    Proc. University Power Engineering Conference CD, 2008
  • Induced Voltages on a Pipeline due to Electro-Magnetic and Static Coupling with a Power Line
    NAGAOKA Naoto
    International Conference on Electrical Engineering, 2007
  • Efficiency Improvement of Compensators for Railway System in Parallel Operation
    NAGAOKA Naoto
    International Conference on Electrical Engineering, 2007
  • Numerical Simulation of Feeding Line of DC Railway using EMTP
    NAGAOKA Naoto
    Proc. ICEE2007-CD, 2007, Hong Kong
  • Harmonic source identification by simultaneous-multipoint harmonic and measurements」 『International Conference on Electrical Engineering
    NAGAOKA Naoto
    Proc. Universities Power Engineering Conference 2007, 2007
  • An optimal operating point control of lithium-ion battery in a power compensator for DC railway system
    NAGAOKA Naoto
    Proc. Universities Power Engineering Conference 2007, 2007
  • Modelling & Simulation of Power Electronic Devices with ATP-EMTP， Part I Rectifier Circuit, Part II Basic Switching Circuit, Part III DC/DC Converter, Part IV Transistor Amplifier, Part V PLL Circuit Simulation
    長岡 直人
    One Day EEUG Course, 2006, Dresden

Works

  • 海外大規模風力発電における系統解析
    2005 -2006
  • 風力発電設備の耐雷研究
    2006
  • インバータ用冷却ファンの劣化評価に関する研究
    2006
  • ビルにおける接地方式の違いによる雷撃時の電位上昇解析
    2006
  • 風力発電システムの系統解析
    2006
  • 大規模集中風力発電所における系統解析
    2005
  • 配電線を対象とした周波数特性計算および過渡解計算手法
    2005
  • 風力システムの系統解析
    2005
  • ハイブリッド給電システムに関わる研究（その２）
    2005
  • ハイブリッド給電システムに関わる研究（その１）
    2004
  • ハイブリッド給電システムにかかわる共同研究
    2004
  • ビルにおける電撃時のサージ電圧解析
    2004
  • 簡易ノイズ測定装置に関する研究
    2004
  • コイルボビン式巻鉄心変圧器に関する研究
    2003
  • 大規模集中風力発電所における系統解析
    2003
  • 免震ビルにおける雷撃時のサージ電圧解析
    2003
  • 風力発電システムの系統解析
    2003
  • ＥＭＣ共同研究
    2003
  • 変電所接地における衝撃大電流特性の検証試験研究
    1995 -1996
  • 塔脚接地インピーダンスのモデルの開発
    1991 -1995
  • Development of Tower Grounding Impedance Model
    1991 -1995
  • 三菱重工横浜ビル高調波解析
    1991 -1992
  • インバータによる高調波抑制方式の研究
    1990 -1992
  • 海外電力系統の解析
    1992
  • 変電所侵入雷サージ波形計算手法に関する研究
    1989 -1991
  • 市場測定データからの不平衡時零相電圧/電圧の検討
  • ビルにおける接地方式の違いによる雷撃時の電位上昇解析
  • インバータのシミュレーションによる特性評価
  • ビルにおける雷撃時のサージ電圧解析

Industrial Property Rights

  • 太陽電池によるコンデンサの充電装置
    特願2004-33782
  • 高調波測定システム、および背後インダクタンス測定方法
    特願2004-257281

Research Projects

  • 電力系統における汎用回路解析手法の開発
    基盤研究（Ｃ）（一般）, 2007 -2009, Competitive research funding
  • Harmonic Analysis
    1992, Competitive research funding
  • 高調波解析
    1992, Competitive research funding
  • Numerical Model
    1985, Competitive research funding
  • Power System Analysis
    1985, Competitive research funding
  • 数値モデル
    1985, Competitive research funding
  • 電力系統解析
    1985, Competitive research funding
  • Collaboration between Infrastructure Research Center of Doshisha University and Power Systems and El
    aiwa Anglo-Japanese Foundation, aiwa Anglo-Japanese Foundation, Small Grant, 各種団体からの研究助成, Competitive research funding

Social Contribution

  • 電気学会ホームページ運用委員会委員, 2006
  • 電気学会国際活動委員会委員, 2006
  • 電気学会B部門役員会委員, 2006

Research Seeds

  • Development of non-destructive estimation method for the aging of lithium ion battery using transition phenomenon
    Research Fields: Electric and Electronics, Environment and Energy
    Affiliation/Name: Naoto Nagaoka

    Patent Information: 特願 2012-127669