【摘要】 本文对用于电力系统静态事故评价的自动事故选择(ACS)方法中的行为指数灵敏度分析法进行研究,提出适用于任意重线路开断的有功行为指数增量计算公式,将该算法发展到多条线路同时开断的事故选择。根据该公式,计算得出的事故排队结果具有良好的准确性,其精度不低于快速解耦一次迭代潮流算法,而计算的时间消耗却比一次迭代法低大约两个数量级,文中给出公式的推导过程及数值试验结果。更多还原

【Abstract】 This paper introduces a study of the algorithm for a sensitivity analysis of the system performance index used in the automatic contingency selection method (ACS)for steady state contingency assessment in a power system. A general formula is presented to calculate the increment of the real power performance index for multiple line outages. This formula extends an application of the algorithm to the case of contingency selection for multiple lines breaking down simultaneously. The numerical tests show that this algorithm has accurate results with little difference from those of the one iteration method offast decoupling load flow,whereas the time consumed less than that of the latter by about two orders of magnitude. A complete derivation of the formula and the test results are also given in this paper.更多还原