论文部分内容阅读
随着电力电子装置中电压源型非线性负载的使用越来越多,并联型APF的谐波补偿特性受到了严重影响。通过理论分析并联型APF不适合补偿电压源型非线性负载的原因,提出一种基于VR控制器的选择性谐波电流控制方法,对指定次谐波分别控制,在提高系统稳态性能的同时,抑制谐波电流放大效应,使在这类非线性负载下并联型APF的谐波补偿特性得到了有效改善。通过仿真以及实验验证了该控制方法的有效性。
With the increasing use of voltage source nonlinear loads in power electronics, the harmonic compensation characteristics of parallel APFs have been severely affected. Based on the theoretical analysis of the reason why shunt APF is not suitable for compensating the nonlinear load of voltage source, a selective current control method based on VR controller is proposed, which controls the designated subharmonic separately. At the same time, , Inhibit the harmonic current amplification effect, so that in this type of nonlinear load parallel shunt APF harmonic compensation has been effectively improved. The effectiveness of this control method is verified by simulation and experiment.