新型单周控制的单相滤波装置仿真与应用

Simulation and Application of Single-phase Filter with a New One-cycle Control Method

针对单相变压器谐波的抑制,提出了一种新型单周控制的单相电力滤波器。新型单周控制有源电力滤波器通过将基于鉴相原理的谐波电流检测法和单周控制相结合,实现了谐波和无功的灵活有效补偿,弥补了传统单周控制只能同时补偿谐波和无功的不足,通过仿真证明该方法正确可行。把这种方法应用到单相谐波抑制变压器中,通过对几种不同滤波方式的仿真结果的对比,进一步证实该方法有良好的滤波效果。

Aming at the harmonic suppression of one-phase transformers, a new single-phase power filter of one-cycle control is proposed. This new active power filter of one-cycle control can achieve a flexible and effective compensation of harmonic and reactive power by combining phase-distinguishing harmonic current detection method with the single-cycle control; and it also makes up the lack of traditional one-cycle control which only can compensate harmonic and reactive power at one time. Meanwhile, this method is proved to be correct and feasible through simulation. In addition, this method is applied to single-phase harmonic suppression transformer, and it has been further confirmed that the method has a good filtering effect through the comparison of simulation results of several different filtering methods.