基于最优乘子潮流估计的故障筛选与排序

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Abstract A fast contingency screening and ranking method for voltage stability security assessment is proposed. The proposed method could trace from the pre-contingency critical point, using optimal multiplier power flow method to obtain the stability boundary point, the post-contingency critical point is estimated from it. The estimate precision is guaranteed by only one iteration step if the start point is close to the critical point, then the non-critical contingencies are quickly identified. To guarantee the computation precision of severe contingencies and some special case contingencies, this paper analyzes them in detail and solving method are also proposed. Numerical simulations on a practical China 703 bus system show that the proposed method is effective.

Key words： Voltage stability contingency screening and ranking optimal multiplier power flow critical point

Received: 15 April 2008 Published: 04 March 2014

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TM712

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	Zhang Yongjun
	Cai Guanglin
	Qiu Wenfeng

Cite this article:

Zhang Yongjun,Cai Guanglin,Qiu Wenfeng. Contingency Screening and Ranking Based on Optimal Multiplier Power Flow Evaluation[J]. Transactions of China Electrotechnical Society, 2010, 25(1): 123-129.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I1/123

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