摘要
误强励是励磁系统恶性事故之一,自并励系统误强励的原因主要有软件及算法错误、PID参数不合理、人员误操作、调节器死机等,通过分析这些原因提出了相应的规避措施。此外,还对误强励工况下的灭磁风险进行了简要分析,建议使用发电机定子过电压保护来配合防范励磁系统误强励风险。
The faulty forced excitation is one of serious accidents of excitation system The taulty tbrced excitation in sell-excited synchronizing generation system is mainly caused by software and algorithm error, unreasonable PID parameters, staff＇s misuse and regulator crash. The corresponding avoidance measures are proposed by analyzing these reasons. The risks of de-excitation under faulty forced excitation mode are also analyzed, and it is suggested that the over-current protection of generator＇s stator can be used to extra prevent the risks of fauhy forced excitation.
出处
《水力发电》
北大核心
2014年第10期54-57,共4页
Water Power
关键词
自并励系统
PT断线
误强励
灭磁风险
self-excited synchronizing generation system
PT breaking
faulty forced excitation
de-excitation risk
