有源滤波器双滞环空间矢量离散控制方法  

A Dual-hysteresis Space-vector Discrete Control Method for Active Power Filters

作　　者：王文[1] 罗安[1] 徐先勇[2] 方厚辉[1] 帅智康[1] 李洲[1] 孟金岭[3] 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082 [2]湖南省电力公司试验研究院计量中心,湖南省长沙市410007 [3]广东电网公司电力科学研究院,广东省广州市510080

出　　处：《中国电机工程学报》2013年第12期10-17,180,共8页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973计划)(2009CB219706);国家青年科学基金项目(51207048);湖南省科技计划项目(2012CK4017)~~

摘　　要：基于电压空间矢量分析原理,提出一种适用于并联型有源电力滤波器的双滞环离散电流控制方法。揭示等效误差电压的约束条件,并说明等效误差电压矢量的最优方向。结合离散控制原理,采用矢量合成与矢量选择的方法,对误差电流矢量位于不同区域时的情况进行分别处理,提高了电流控制方法的动态响应速度,并在满足电流畸变率要求的前提下,显著降低了稳态时逆变器的开关频率。仿真分析和实验结果验证了所述方法的有效性。A dual-hysteresis space-vector discrete current control method for shunt active power filters （SAPF） was proposed. Firstly, the constraint condition and the optimal direction of the equivalent voltage error vector were both discussed in detail. Then, the proposed control method was presented, which mainly deals with the conditions when the current error vector is in the outer loop or the inner loop. As it is in the outer loop, the optimal output voltage vector was synthesized to improve the dynamic performances of current error reduction, and the basic output voltage vector was selected to be output during every switching period when the error is in the inner loop, thus to reduce the operation frequency of power switches on the premise of the output current total harmonic distortion limitation. Simulations and experimental results have validated the effectiveness of the proposed method.

关 键 词：并联有源电力滤波器 离散滞环电流控制 空间矢量 矢量合成 

分 类 号：TM464[电气工程—电器]