基于同期切换的厂用电快速切换方案探究  

Research on Quick Switching Scheme of Power Supply Based on Synchronous Switching

作　　者：吕飞 张博 吴頔杰 张凯丽 孙锦龙 LV Fei;ZHANG Bo;WU Dijie;ZHANG Kaili;SUN Jinlong(Guodian Changyuan Hanchuan First Power Generation Co.,Ltd.,Hanchuan 432300,China)

机构地区：[1]国电长源汉川第一发电有限公司,湖北汉川432300

出　　处：《通信电源技术》2020年第19期260-262,共3页Telecom Power Technology

摘　　要：厂用电源快速切换装置是目前电厂中广泛运用的一种自动装置,然而随着近年来电厂接入系统架构的不断革新,当厂用工作和备用进线电源之间初始相角差较大时,现有的快速切换装置可能无法满足厂用电安全可靠切换的要求。对此提出了一种基于同期切换的厂用电快速切换方案,能够在不同进线电源间初始相角差较大时完成切换,有效保证了机组的厂用电的安全稳定。Auxiliary power supply quickly switch device is an automatic device widely used in power plant,however,with the innovation of new power plants connected to the system architecture in recent years,as a factory work,standby power between initial phase angle difference is bigger,the existing fast switching devices may not be able to satisfy the requirement of safe and reliable auxiliary power switch.In view of this situation,this paper proposes a quick switching scheme based on synchronous switching,which can complete the switching when the initial phase angle difference between different incoming power sources is large,effectively ensuring the safety and stability of the power supply of the plant.

关 键 词：同期切换 快速切换 相角差 切换方案 

分 类 号：TM6[电气工程—电力系统及自动化]