基于电感电流的容错APF统一SVPWM控制方法  

Control method of unified SVPWM for three-phase four-switch Fault-tolerant APF based on inductor current

作　　者：杨剑锋[1,2] 江辉 周天奇[1] Yang Jianfeng;Jiang Hui;Zhou Tianqi(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Key Laboratory of Opto-Technology and Intelligent Control of Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070 [2]兰州交通大学光电技术与智能控制教育部重点实验室,甘肃兰州730070

出　　处：《系统仿真学报》2019年第10期2103-2111,共9页Journal of System Simulation

基　　金：国家自然科学基金(61863023)

摘　　要：传统容错三相四开关SVPWM控制方法要根据A相、B相、C相的故障位置选择不同坐标变换的控制算法,该计算过程涉及大量的坐标运算,不利于容错控制的切换。基于电感电流提出一种容错三相四开关APF统一SVPWM控制方法,与传统SVPWM控制方法通过坐标变化计算参考电压矢量不同,该方法以电感电流变化量为控制目标,无需复杂的坐标变换计算,计算表达式形式统一,利于系统容错算法的切换,同时能有效减少容错三相四开关有源滤波器控制电路计算量,提高谐波补偿精度,仿真结果验证了该算法的有效性。The algorithm of conventional space vector PWM for three-phase four-switch fault-tolerant APF chooses different coordinate transformation control algorithm based on the fault location selection of phase A, phase B, phase C. The calculation process involves a lot of coordinate operation, and, is not conducive to the fault switching. A unified SVPWM for three-phase four-switch Fault-tolerant active power filter based on inductor current is presented. The traditional SVPWM control needs complex coordinate transformations. The simplified algorithm takes the inductor current change as the control target, doesnot complicated coordinate transformation calculation, and the form of the calculation is unified, which is easy to the fault switching. At the same time, the calculation of three-phase four-switch active power filter is reduced effectively, and the harmonic compensation accuracy of the three-phase four-switch APF is improved. The simulation results verify the effectiveness of the proposed algorithm.

关 键 词：有源电力滤波器 空间矢量脉宽调制 容错控制 电感电流 

分 类 号：TM71[电气工程—电力系统及自动化]