并联型有源电力滤波器电源电流控制方法研究  

Supply current control method of shunt active power filter

作　　者：魏学良[1] 蔡欣 姜珊[1] WEI Xue-liang;CAI Xin;JIANG Shan(College of Geophysics and Information Engineering China University of PetroleumBeijing,Beijing 102249,China;IBY Electric Technology (Yang Zhou) Co.,Ltd.,Yangzhou 225000,China)

机构地区：[1]中国石油大学(北京)地球物理与信息工程学院,北京102249 [2]艾博白云电气技术(扬州)有限公司,江苏扬州225000

出　　处：《电机与控制学报》2017年第12期85-92,99,共9页Electric Machines and Control

基　　金：国家自然科学基金(61072074)

摘　　要：有源电力滤波器(active power filter,APF)是一种动态抑制谐波和无功的电力电子装置,以并联型有源电力滤波器为研究对象,从APF补偿电流的控制和直流侧电容电压角度出发,分析了电源电流控制方式,实现补偿电流的检测及双闭环反馈控制,提高系统的补偿精确度和动态响应性能。另外,直流侧电压的指令值都是根据电网电压的工作范围、APF的直流侧电容、额定输出电流、PWM逆变器输出侧电感、电流电压调节器以及调制策略等参数设计的,在考虑直流侧电压与APF功率损耗和补偿性能关系的基础上,提出了采用下垂调节器设计逆变器直流侧电压的控制参考值,使其兼顾APF的功率损耗及补偿性能综合平衡的优点。仿真结果验证了该APF控制系统的正确性和有效性。The active power filter(APF)is a dynamic power electronic device to suppress the harmonics and reactive power.From the perspective of the compensation current and DC side capacitor voltage of APF,a threephase,threewire parallel type active power filter applied detecting source current control method to achieve the compensation current detection and the double closed loop of current control,which improved the compensation accuracy and dynamic performance.Moreover,DC link voltage reference was designed according to operating space of the grid voltage,DC link capacitor value,rating output current,output inductance value,current regulator,voltage regulator,and modulation strategy etc.Based on the relationship between DC link voltage and power loss and APF compensation,the droop controller was adopted to achieve a comprehensive optimization between active power loss and the compensation performance of APF.Simulation results prove the validity and feasibility of the APF control approach.

关 键 词：有源电力滤波器 电源电流控制 直流侧电压 下垂调节器 双闭环反馈控制 

分 类 号：TN713.8[电子电信—电路与系统]