莲花水电站水轮发电机组励磁系统设计

Design of hydrogenerator's excitation system of Lianhua Hydropower Station

为了适应莲花无人值班、少人值守、梯调遥控的要求，在机组励磁系统配置了两套灭磁开关、灭磁ＺｎＯ电阻、励磁整流柜、励磁变压器和励磁调节器。此外进行了１∶１模拟断流灭磁试验并针对试验中发现的问题提出技术措施及处理办法。

Two field suppressing switches,ZnO field suppression resistance,excitation rectifier,excitation transformer,excitation regulator have been installed in the excitation system of the generating units in order to meet the needs of unattended operation,a few people on duty,cascade dispatching and remote control.In addition,the field suppression simulation test in scale of 1∶1 has been made.And some technical measures,treating ways and opinions have been adopted according to the problems occurred in the test.