基于模糊风险分析的紧急控制实时启动方法

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Abstract A real-time initiation approach of power system emergency control is proposed in this paper. In this approach, the system risk is defined and obtained by virtue of the start-up probability and the loss of system. The former can be provided by the fuzzy logic inference taking the imbalance power and the uncertainty of generator relays into account, and the latter is associated with the control cost. And then, based on the system risk, the start-up criterion is presented to decide the control time for system stability and low control cost. The approach is performed on the Hubei Grid under interconnection of North China Grid and Central China Grid. Comparing with the conventional approach, it can be validated that the proposed approach making the most of steady-state information for fast computation can avoid system instability caused by control delay or cascading blackout and ensure low control cost.

Key words： Emergency control fuzzy logic risk start-up criterion system stability

Received: 20 February 2010 Published: 04 March 2014

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TM71

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	Articles by authors
	Wang Ansi
	Luo Yi
	Tu Guangyu
	Liu Pei

Cite this article:

Wang Ansi,Luo Yi,Tu Guangyu等. Real-Time Initiation Approach of Emergency Control Based on Fuzzy Risk Analysis[J]. Transactions of China Electrotechnical Society, 2010, 25(8): 138-144.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I8/138

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