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.
张勇军, 蔡广林, 邱文锋. 基于最优乘子潮流估计的故障筛选与排序[J]. 电工技术学报, 2010, 25(1): 123-129.
Zhang Yongjun, Cai Guanglin, Qiu Wenfeng. Contingency Screening and Ranking Based on Optimal Multiplier Power Flow Evaluation. Transactions of China Electrotechnical Society, 2010, 25(1): 123-129.
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2010, Vol. 25 
