300 Mvar大型同步调相机的启动及继电保护

SFC start and relay protection of 300 Mvar large synchronous condenser

随着直流输电、新能源、大电网、特高压等技术的发展,同步调相机重新得到关注,300 Mvar大型同步调相机即将使用。综述了我国调相机的以往应用状况及大型同步调相机的需求背景,介绍大型调相机的静止变频SFC启动方式。重点分析几种特殊的调相机保护功能及原理。首次提出了300 Mvar调相机的继电保护功能配置方案、原理及实现等。

More attention is paid to synchronous condenser nowadays with developing of DC transmission, new energy resources, large HV power grid and EHV technology. 300 Mvar synchronous condenser（CS） will be put into service soon in China. This paper summarizes CS present applying status, as well as requirement background and SFC（static frequency converter） start mode of large CS. Some special relay protective functions for CS are analyzed in detail. Relay configuration scheme, principle and implement method of the 300 Mvar CS are put forward.