長距離大電力送電系統に適応したオンライン統合型系統安定化システム(ISC)の開発

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タイトル別名
  • Development of On-line Integrated Stability Control System (ISC) for Long-distance Bulk Power Transmission
  • チョウキョリ ダイ デンリョク ソウデン ケイトウ ニ テキオウ シタ オンライン トウゴウガタ ケイトウ アンテイカ システム(ISC)ノ カイハツ

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A new large-scale thermal power plant is planned to be located approximately 300km away from the main power grid. Existing transmission facilities is utilized for transmission of the power from the generating plant to the grid. In an effort to maximize the total transfer capability (TTC) of the existing lines and maintain security of the interconnection, a new special protection system (SPS) and STATCOM is introduced.<br>This new SPS is developed as the Integrated Stability Control system (ISC) which can be applied to transient stability, voltage stability and frequency problems. In order to adopt merits of both pre-calculation method and post-fault real-time calculation method, the control function of ISC consists of primary control based on pre-calculation results and secondary control based on real-time calculation results.<br>This paper describes the detailed algorithms of the ISC and the results of its verification test using prototype systems combined with RTDSTM or an analog-type simulator.

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