某燃气电厂励磁系统永磁机电压下降故障分析  

Fault Analysis of Voltage Drop of Permanent Magnet Machine in Excitation System of a Gas-Fired Power Plant

作　　者：杨胜 艾世清 YANG Sheng;AI Shiqing(Hubei Energy Group Integrated Energy Investment Co.,Ltd.,Wuhan 430073,China)

机构地区：[1]湖北能源综合能源投资有限公司,湖北武汉430073

出　　处：《电工技术》2023年第9期210-212,216,共4页Electric Engineering

摘　　要：火电厂发电机交流无刷励磁装置常见故障主要有旋转二极管异常、励磁调节器故障、通道切换异常等故障,永磁机故障较为少见。通过对运行中永磁机电压突然下降故障实例的分析,找到故障原因并消除,提出了相关建议。The common faults of AC brush-less excitation device of generator in thermal power plants are rotating diode abnormalities,excitation regulator faults,channel switching faults,etc.,and the permanent magnet faults are relatively rare.In this paper,through the analysis of the fault of the sudden drop in the voltage of the permanent magnet during operation,the cause of the fault is found and eliminated,and treatment suggestions are put forward.

关 键 词：励磁系统 永磁机 电压下降 功率卡件 

分 类 号：TM621[电气工程—电力系统及自动化]