±200 Mvar链式STATCOM一次暂态启动过程的分析

Study on a transient process of ±200 Mvar STATCOM

文章从STATCOM实际运行的角度出发,介绍了南方电网±200 Mvar链式STATCOM的稳态及暂态电压控制策略;并以一次典型的单相接地故障为例,结合故障录波详细分析了500k V北郊变电站STATCOM的暂态启动过程和无功输出特性,结果表明,STATCOM在电网故障时可靠快速响应,体现了良好的无功支撑能力。

This article introduced the steady-state and transient voltage control strategy of ±200 Mvar STATCOM in China Southern Power Grid from the perspective of the actual operation of STATCOM. Then set a typical single-phase ground fault as an example, analysis the transient waves during the startup and reactive power output characteristics detailed with the help of substation recorded waves in 500 k V BEIJIAO substation. The results proved that STATCOM can give a reliable and rapid response in grid fault, reflecting a good reactive support capability.