中小型发电机定子接地故障查找辅助决策系统研究  

Research on Auxiliary Decision-Making System for Finding Stator Grounding Fault in Small and Medium-sized Hydroelectric Generators

作　　者：薛玉林 王雪松 曾义昌 XUE Yulin;WANG Xuesong;ZENG Yichang(PowerChina Hydropower Group Co.,Ltd.,Chengdu Sichuan 610000;Aba Hydropower Development Co.,Ltd.,Aba Prefecture Sichuan 623500)

机构地区：[1]中电建水电开发集团有限公司,四川成都610000 [2]阿坝水电开发有限公司,四川阿坝州623500

出　　处：《四川水力发电》2025年第2期1-4,共4页Sichuan Hydropower

摘　　要：聚焦于中小型水轮发电机组在电力系统中的关键地位及其定子绕组单相接地故障的有效处理与辅助决策技术,分析了定子绕组单相接地故障的类型、成因及其对发电机运行的影响,提出了构建一种中小型水轮发电机组定子接地故障查找辅助决策系统。详细阐述了辅助决策方法的总体框架,通过实例验证,该系统被证明能够显著提高故障查找的时效性和准确性,降低人为误差,为中小型水轮发电机组的稳定运行提供了有力支持。未来将进一步优化系统算法和界面设计,以适应更复杂的故障情况和更高的电力系统运行要求。This paper focuses on the key position of small and medium-sized hydroelectric generators in the power system and the effective handling and auxiliary decision-making techniques for single-phase grounding faults in the stator windings.It analyzes the types,causes,and effects of single-phase grounding faults in stator windings on generator operation,and proposes the construction of an auxiliary decision-making system for stator grounding fault detection in small and medium-sized hydroelectric generator units.The paper elaborates on the overall framework of auxiliary decision-making methods.Through practical examples,it has been proven that the system can significantly improve the timeliness and accuracy of fault diagnosis,reduce human errors,and provide strong support for the stable operation of small and medium-sized hydroelectric generating units.In the future,system algorithms and interface design will be further optimized to adapt to more complex fault situations and higher operational requirements of the power system.

关 键 词：水轮发电机组 定子绕组 接地故障 故障查找 

分 类 号：U264.74[机械工程—车辆工程]