CAJ | 학술논문

为了解决电力系统面临的故障筛选问题，提出了一种改进的故障筛选策略。利用动态安全域的分析方法，结合实用概率不安全指标作为对故障筛选排序的依据，将致命性故障与非致命性故障分别建模，以故障可能造成的损失作为目标函数进行排序。分析多种故障分类下系统面临的不同情况，综合考虑全局概率分布，通过权值控制反映系统安全性指标，通过目标函数反映经济性指标，采用离线计算在线应用的方式得到故障综合筛选情况。采用IEEE10机39节点系统算例进行验证性排序，结果符合事实依据，该方法鲁棒性好，对实际故障隐患的处理指导性强。
위료해결전력계통면림적고장사선문제，제출료일충개진적고장사선책략。이용동태안전역적분석방법，결합실용개솔불안전지표작위대고장사선배서적의거，장치명성고장여비치명성고장분별건모，이고장가능조성적손실작위목표함수진행배서。분석다충고장분류하계통면림적불동정황，종합고필전국개솔분포，통과권치공제반영계통안전성지표，통과목표함수반영경제성지표，채용리선계산재선응용적방식득도고장종합사선정황。채용IEEE10궤39절점계통산례진행험증성배서，결과부합사실의거，해방법로봉성호，대실제고장은환적처리지도성강。
In order to solve the problem of contingency screening that power system faces, an improved contingency screening strategy is proposed. This paper uses the analysis method of dynamic security domain, and practical probabilistic insecurity index is a basis for contingency screening and ranking. Building models depend on fatal contingency or not, then it takes the loss that may be caused by the failure as the objective function to rank. This method analyses different circumstances under a variety of fault classification that the system faces and considers the overall probability distribution, reflects system security by weight control and economy index by objective function. Then it uses the method of off-line calculation and online application to get the results of contingency screening. Tests on the New England 10-generator 39-bus test system show that the results accord with the factual basis, and it has good robustness and strong guidance for the processing of actual hidden faults.