摘要
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。
Nowadays, voltage-source type nonlinear loads in power electronic equipment are increasingly used.And the harmonic compensation characteristic of shunt APF is serious. Through theoretical analysis, the reason why shunt APF is not suitable for compensating voltage-source type nonlinear loads is expounded. Then this paper proposes a selective harmonic current control method which bases on vector resonant controller. Meanwhile, this method can implement the selective harmonics control. On the one hand, it can improve the steady-state performance of the system. On the other hand, it can suppress harmonic current amplification effect. So the harmonic compensation characteristic of shunt APF is effectively improve at this kind of nonlinear load. The effectiveness of control method is verified by simulation and experiment.
作者
刘乐然
席自强
王平
LIU Le-ran;XI Zi-qiang;WANG Ping
出处
《科学技术与工程》
北大核心
2016年第29期255-259,共5页
Science Technology and Engineering
基金
湖北省自然科学基金重点项目(2010CDA018)资助
