右江水力发电厂励磁系统技术改造

Technical modification of excitation system at Youjiang Hydropower Plant

针对右江水力发电厂4#机组励磁系统调节器存在的设备老化和故障问题,论述了实现基于EXC9200的励磁系统调节器改造方案及励磁系统改造过程中发现的一个缺陷及处理方法。并介绍了改造后机组的运行情况:实现了部分设备的国产化,改善了设备使用的便利性和经济性。进行改造后励磁系统交接试验,试验结果满足相关规范要求。

In view of the aging and failure problem of No.4 generator excitation system regulator of Youjiang Hydropower Plant, the authors present the modification scheme based on EXC9200, a defect found in the course of technical modification and the solution. An introduction was made on the operation status of unit after modification. Localization of some equipment was realized. The convenience and economy of equipment use were improved. The results of the excitation system handover test after the modification all met the requirements of relevant specifications.