Because of the pure resistive nature of the equivalent resistance of impedor, no harmonic will be generated during the voltage regulation.

由于阻抗器的等效电阻为纯电阻，因此在调整电压的过程中不会产生谐波。

youdao

Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.

晶闸管串级调速系统是一种廉价、简易的调速系统，但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。

youdao

In order to realize the functions of harmonic compensation and voltage regulation for nonlinear loads, a hybrid shunt active power filter is proposed.

为实现对非线性负载的谐波补偿和电压调节功能，提出了一种混合型并联有源滤波器。

youdao