摘要
针对三相四线制并联型电力有源滤波器的谐波电流检测问题,论证了基于瞬时无功理论的ip—iq算法无需改进也可直接应用到三相四线制系统里,给出了推导过程。阐明了基于该方法的滤波原理;给出了主控电路结构;分析了电力有源滤波器主要参数对其整体性能的影响,确定各参数值,并搭建了仿真模型;利用Matlab/SIMULINK对该模型进行了软件仿真分析。仿真结果表明:该有源滤波器对三相四线制系统中不平衡非线性负载产生的谐波具有良好的补偿特性,并且平衡三相负载。
In order to solve the harmonic current detection problem of shunt active power filter（APF） in three-phase and four-wire system, the ip-iq algorithm based on the instantaneous reactive theory was demonstrated, It could be directly applied to three-phase and four-wire system without being improved, and the derivation process was given. The principle of filtering and the main circuit of this system were introduced. Also, several key parameters which affect performance of the APF were discussed, and parameter values were chosen. Then a simulating model was built, and software simulation analysis for this model was carried out by means of Matlab/SIMULINK. The simulation resuhs show that this active power filter has a good compensation characteristic for the harmonic produced by the unbalance nonlinear loads and balances three-phase loads in three-phase and four-wire system.
出处
《电机与控制学报》
EI
CSCD
北大核心
2009年第A01期20-24,共5页
Electric Machines and Control
关键词
有源滤波器
三相四线制
ip-iq算法
谐波电流
补偿特性
active power filters
three-phase and four-wire system
ip-iq algorithm
harmonic current
compensation characteristic
