串联型电压暂变补偿器的准IR控制研究

Quasi-IR Controller Study of Series Voltage Sag Compensator

针对一种无整流器无变压器无储能电容的串联型电压暂变补偿新拓扑,当集总电路带宽较窄并且系统存在与指令信号同频的正弦扰动时,为了使系统更好地跟踪含低频偏移的正弦信号,提出了准IR调节器。相比较之前的PI调节器,准IR调节器具有跟踪效果好、动态响应速度更快的优点。最后利用Matlab仿真对比验证了准IR调节器相对于PI调节器的优点。

Aiming at a kind of novel topology about voltage sag compensator without transformer,rectifier and energy storage capacitors,the paper recommends quasi-IR regulator to better track sinusoidal signal which contains low frequency offset when lumped circuit bandwidth is narrow and sinusoidal disturbances to command signal exists in the system.Compared with previous PI regulator,the quasi-IR regulator has several advantages of excellent tracking effect and fast dynamic response.At the end,,the paper validates that the quasi-IR regulator is better than the performance of the PI regulator by using Matlab simulation.