一种利用振荡直流母线电压指令提升谐波补偿性能的改进型三电平有源电力滤波器控制策略

Given interactions exist between dc-link voltage oscillations and ac currents in three-level active power filters (3L APF), the output of the outer voltage loop will inevitably affect the current control loop, impairing the harmonic-compensation performance. In this article, the oscillated dc-link voltage command is utilized to enhance the harmonic-compensation performance. First, the dc-link volt...