摘要
为了优化有源电力滤波器(APF)所产生的补偿电流的质量,在对APF电流跟踪控制进行分析的基础上,提出了一种改进的方法,即通过谐振控制器和比例控制器的并联实现无静差控制。结合瞬时无功功率理论检测谐波,对APF进行了理论分析和Matlab/Simulink仿真验证。改进后的方法能够实现对多个谐振频率进行零稳态误差跟踪,在三相并联APF中滤除掉50次以内的特定谐波。仿真结果证明了该设计方法的合理性和有效性。
In order to optimize the quality of compensation current generated by active power filter （ APF）, based on the analysis of current tracking control of APF, this paper proposed an improved method, that is, through the resonant controller and the proportion of the controller to realize parallel static control. Combined with instantaneous reactive power theory of harmonic detection, the paper conducted the analysis of design methods and Matlab/Simulink simulation. This new method can realize zero steady-state error tracking for several resonant frequencies. In parallel three-phase active power filter, it can filter away within 50 times of particular harmonic. The experimental results show the rationality and validity of the method.
出处
《低压电器》
2012年第23期52-55,共4页
Low Voltage Apparatus
关键词
谐波检测
电流跟踪
改进型比例谐振控制
harmonic detection
current tracking
modified proportional resonant control
