三电平有源滤波器无差拍控制系统  

Three-Level Shunt Active Power Filter Deadbeat Control System

作　　者：王殿俊[1] 朱启伟[1] 张晓[1] 

机构地区：[1]中国矿业大学江苏省电力传动与自动控制工程技术研究中心,江苏徐州221006

出　　处：《低压电器》2012年第11期42-45,共4页Low Voltage Apparatus

基　　金：中国矿业大学中央高校基本科研业务费专项基金(2010ZDP1A10)

摘　　要：为解决三电平并联型有源滤波器(SAPF)因采样、计算、滤波等原因造成的电流跟踪延时,提出了一种基于简化空间矢量脉宽调制(SVPWM)三电平SAPF无差拍控制策略。建立了二三电平SAPF数学模型,阐述了无差拍控制的原理,并推导了无差拍控制模型。采用抛物线预测算法进行谐波预测,采用简化三电平SVPWM算法进行PWM脉冲调制,并通过浮点型数字处理器DSP实现。仿真试验结果表明,系统具有很好的滤波效果和良好的应用前景。To solve three-level shunt active power filter （ SAPF ） current track delay caused by sampling, calculation, filtering and other reasons, a deadbeat control strategy based on simplified space vector pulse width modulation（SVPWM） three-level SAPF was proposed. The mathematical model of SAPF was established. The principle of the deadbeat control was discussed. The deadbeat control model was derived. The harmonic was predicted by parabolic prediction algorithm. The PWM pulse modulation was carried out by simplified three-level SVPWM algorithm, and the control strategy was realized through floating-point type digital processor DSP. The simulation results show that the system has good filtering effect, and good application prospect.

关 键 词：三电平 并联型有源滤波器 无差拍控制 简化SVPWM 抛物线预测算法 

分 类 号：TN713.8[电子电信—电路与系统]