EMTP Numerical Instability and Passivity Violation of Very-Fast-Transient Simulation in GISs

カテゴリ: 研究会(論文単位)

論文No: HV20006

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2020/01/23

タイトル(英語): EMTP Numerical Instability and Passivity Violation of Very-Fast-Transient Simulation in GISs

著者名: De Silva Jeewantha(MANITOBA HYDRO INTERNATIONAL),Ametani Akihiro (University of Manitoba),Muthumuni Muthumuni(MANITOBA HYDRO INTERNATIONAL),Gole Aniruddha(University of Manitoba)

著者名(英語): Jeewantha De Silva(MANITOBA HYDRO INTERNATIONAL),Akihiro Ametani(University of Manitoba),Muthumuni Muthumuni(MANITOBA HYDRO INTERNATIONAL),Aniruddha Gole(University of Manitoba)

キーワード: EMTP|numerical instability|passivity violation|transient simulation|VFT|GIS|EMTP|numerical instability|passivity violation|transient simulation|VFT|GIS

要約(日本語): This paper investigates numerical instability in time domain and passivity violation in frequency domain, when simulating very-fast transients (VFTs) in a gas-insulated substation (GIS). It is made clear that the numerical instability and passivity violation appear when the classical transmission line (TL) approach with Carson’s earth-return impedance and space capacitance implemented existing EMTPs are adopted in a transient simulation of VFTs in the GIS. Those problems are eliminated by adopting the extended TL approach with an accurate earth-return impedance and earth-return admittance.

要約(英語): This paper investigates numerical instability in time domain and passivity violation in frequency domain, when simulating very-fast transients (VFTs) in a gas-insulated substation (GIS). It is made clear that the numerical instability and passivity violation appear when the classical transmission line (TL) approach with Carson’s earth-return impedance and space capacitance implemented existing EMTPs are adopted in a transient simulation of VFTs in the GIS. Those problems are eliminated by adopting the extended TL approach with an accurate earth-return impedance and earth-return admittance.

原稿種別: 英語

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