Excitation Control System Design of High Response Excitation Type Superconducting Generator for Improving Power System Dynamics

カテゴリ: 部門大会

論文No: 26

グループ名: 【B】平成17年電気学会電力・エネルギー部門大会講演論文集

発行日: 2005/08/10

タイトル(英語): Excitation Control System Design of High Response Excitation Type Superconducting Generator for Improving Power System Dynamics

著者名: ウォーラウット セーコック(東京大学),横山 明彦(東京大学),仁田 旦三(東京大学)

著者名(英語): Worawut Sae-Kok(The University of Tokyo),Akihiko Yokoyama(The University of Tokyo),Tanzo Nitta(The University of Tokyo)

キーワード: Superconducting Generator|High Response Excitation|Excitation Power|SMES|Excitation SystemPSS

要約(日本語): Superconducting generator (SCG) with superconducting field winding has many advantages such as small size, light weight, high generation efficiency. A prominent advantage is to improve power system stability owing to lower synchronous reactance compared with the conventional generator. High response excitation type SCG can enables very rapid change in field current and will make excitation power to be large and has a rapid change enough to affect the conditions of power system in self-excited operation of the generator. This effect is equivalent to the effect of SMES, then so-called “SMES effect”. In this paper, excitation control system design for high response excitation type SCG in consideration of SMES effect is proposed for improving power system dynamics by employing eigenvalue sensitivity. The SMES effect is considered to couple with the power system as a nonlinear load. The control performance of the proposed excitation control system is examined in IEEJ East 10-machine and West 10-machine systems. It is made clear that the SMES effect of SCG is utilized effectively and results in both transient and dynamic stability improvement.

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