摘要
提出了一种改进的注入方波电压式转子接地保护方案。该方案通过数据采集回路和算法的冗余化提高了保护的可靠性,无需引入励磁电压,保证了运行维护的安全性。根据该方案研制的保护样机其硬件成本得到了有效控制,有利于产品的推广使用。
An improved rotor earth-fault protection scheme with injection square wave voltage is introduced. The improved scheme without exciting voltage leading into enhances the security of the protection by the method of redundancy sampling calculation. The low cost of the protection devices which are manufactured based on the improved scheme benefits the popularization of products.
出处
《水电自动化与大坝监测》
2011年第4期47-49,共3页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
转子接地保护
注入方波电压式方案
冗余化
励磁电压
rotor earth-fault protection
injection square wave voltage
redundancy
excitation voltage
