摘要
单位功率因数检测法把有源电力滤波器与非线性负载并联等效为电阻性负载,用于谐波检测时准确性高、实时性好。电流跟踪控制采用空间矢量脉冲调制控制策略,通过重复预测环节实现无差拍控制,以提高补偿电流跟踪控制的实时性。在Matlab/Simulink环境下建立三相并联型APF仿真模型进行仿真实验,搭建实验平台并在低压条件下进行实验验证,结果表明单位功率因数谐波检测法及基于重复预测的无差拍控制方案在保证系统稳态精度的同时有效改善了系统的动态响应性能。
Unity power factor detection has high accuracy and good real-time used in harmonic detection, where active power filter and nonlinear load are equivalent in parallel to a resistive load.The current tracking control used space vector pulse width modulation （SVPWM）method. Meanwhile, the repetitive predictor was applied so as to improve real-time of compensation current in tracking control.Buih a three-phase shunt active power filter simulation model in Matlab/Simulink environment to take simulation. Set up the experimental platform of APF and experiment under the low voltage condition. The results show that unity power factor detection and deadbeat control mothod based on repetitive predictor can acquire good dynamic response performance as well as high precision.
出处
《电气传动》
北大核心
2015年第4期41-45,共5页
Electric Drive
基金
教育部博士点基金项目(20101402120004)
关键词
有源电力滤波器
单位功率因数检测
锁相环
重复预测
active power filter（APF）
unity power factor detection（UPF）
phase-locked loop
repetitive predictor
