大型发电机组同期回路的设计及防止非同期、误上电事故的应用分析

Technical analysis of non-synchronous tie and inadvertent energization of large generator and design of synchronous circuit

研究了发电机非同期并网的问题。引起发电机非同期的原因一般有同期回路的设计不当、同期回路调试方法不正确、同期装置参数设置错误。通过以上几个方面的分析,提出几个避免发电机并网过程中容易引起非同期事故等值得高度重视的几个问题及解决处理方案,并对发电机非同期及误上电并网后相关保护配置进行了探讨,达到有效地减少发电机组的非同期事故的发生及减少对发电机的损害的目的。

This paper studies the issue about non-synchronous tie of the large generator. The reasons caused non-synchronous tie of generators generally include poorly designed circuit, incorrect circuit debug method and incorrect parameter＇s setting of synchronizing device. Through the above analysis ofseveral aspects, the paper puts forward several important problems that cause non-synchronous accident during the course of the synchronism. And it works out a practical scheme to reduce the non-synchronous accident of the generator efficaciously. At last, the relay protection configuration of the non-synchronous tie and inadvertent energization is discussed to decrease the demage of the generator.