三相并联型有源电力滤波器定频直接功率控制  

Three-phase Shunt Active Power Filter Direct Power Control With Fixed-frequency

作　　者：赵张飞[1] 陈国振[1] 任亚军 杨东[3] 

机构地区：[1]河南城建学院,电气与信息工程学院,河南平顶山467036 [2]佛山高明供电局,广东佛山528000 [3]宿州供电公司,安徽宿州234000

出　　处：《电力电子技术》2013年第10期57-59,共3页Power Electronics

基　　金：河南省科技厅重点科技攻关项目(132102210457)~~

摘　　要：基于三相有源电力滤波器(APF)的数学模型,结合瞬时功率理论得到了三相APF的功率数学模型。根据功率数学模型,提出了一种基于虚拟磁链定向的固定开关频率三相并联APF直接功率控制(DPC)方法。相比于传统的控制方法,该方法省去了锁相环,无需进行谐波电流检测,保证了固定开关频率,同时使系统具有较好的动态性能。仿真和实验结果表明所提控制策略能有效地补偿谐波电流,且控制效果好。Based on the model of three-phase active power fiher（APF） and instantaneous power theory,the mathemati- cal model of the power of three-phase active filter is obtained.According to the power mathematical model, the method of virtual flux direct power control with fixed-frequency is proposed.Compared with the traditional control method, this method can ensure a fixed switching frequency and better dynamic performance without the phase locked loop and harmonic current detection.Simulation and experimental results show that the proposed control method can compensate the harmonic current efficiently and have better control effect.

关 键 词：有源电力滤波器 功率模型 直接功率控制 虚拟磁链 

分 类 号：TM713.8[电气工程—电力系统及自动化]