核电厂发电机励磁调节器电源回路优化改进与研究
汪维
（中广核研究院有限公司，广东 深圳 518120）
摘要： 描述了核电厂励磁系统的基本结构，励磁调节器的功能和通道配置情况。针对一核电厂UNITROL 6800 型励
磁调节器因变送器供电回路接地故障而引起的跳机事件，分析了导致该跳机事件的根本原因以及这一型号励磁调节器电
源回路存在的设计缺陷，并且提供了对励磁调节器电源回路进行优化改进的技术方案。
关键词： 励磁系统；励磁调节器；电源回路；稳定性
中图分类号： TM31     文献标识码： A     文章编号： 2095-0802-(2021)06-0109-03
Improvement and Research of Excitation Regulator Power Circuit for Generator Used in Nuclear
Power Plant
WANG Wei
(China Nuclear Power Technology Research Institute Co., Ltd., Shenzhen 518120, Guangdong, China)
Abstract: This paper described the basic constitution of the excitation system and the function and channel configuration of
excitation regulator. According to the unit trip caused by ground fault in power supply circuit of transmitter used in UNITROL
6800 excitation regulator of the nuclear power plant, this paper analyzed the root cause of the unit trip and design flaws in the
power circuit of this type of excitation regulator, and provided a technical solution for optimizing and improving the power circuit
of the excitation regulator.

Key words: excitation system; excitation regulator; power circuit; stability