【作者】 戈宝军； 李梦乔；

【Author】 GE Baojun;LI Mengqiao;Harbin University of Science and Technology;

【机构】 哈尔滨理工大学；

【摘要】 水轮发电机定子内部短路故障一旦发生会引发很大的破坏性事故,有效的主保护配置方案是必不可少的。但是主保护配置方案的设计之前,对于定子内部故障的分析尤为重要,它是后续一切工作的前提和基础。本文分析了波绕组和叠绕组的结构,并在这基础上研究了短路故障的类型、数目和位置,总结了定子绕组内部故障的规律后,设计了较为可行有效的定子绕组内部故障统计的算法,并用两个电机实例进行了计算。更多还原

【Abstract】 Short-circuit faults in the hydrogenerator stator may cause a lot of destructive accidents,so effective configuration scheme of main protection is particularly necessary.However,before the design of main protection configuration scheme,the fault modality analysis of internal short-circuit is very important which is the precondition of follow-up work.Structure features of wave winding and lap winding are analyzed in this article.The modality and the position of short-circuit fault are also analyzed based on the winding structure features.Then the law of the short-circuit faults in stator is summarized,after which a feasible versatile algorithm of short-circuit faults statistics is designed.Finally two generator instances are used in this algorithm.更多还原