级联型有源电力滤波器的研究  

Research on cascaded shunt active power filter

作　　者：吴坚[1] 杨文焕[1] 方春仁 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《信息技术》2015年第4期102-104,109,共4页Information Technology

摘　　要：把级联型变流器应用于有源滤波装置是实现大容量谐波补偿的重要途径。介绍级联型有源电力滤波器的基本原理,针对级联型拓扑结构基于瞬时无功功率理论改进了指令电流的计算,使其三相直流侧电压独立控制,满足有源电力滤波器运时对直流侧电压稳定性的要求。用载波相移—正弦脉宽调制(CPS-SPWM)实现电流跟踪控制,并对CPS-SPWM进行了数学分析,同时为了降低启动过程中直流侧电压和电流的过冲,设计一种直流侧预充电方案。最后通过仿真软件MATLAB/Simulink进行仿真验证设计可行性。The cascade type converter applied in active filter unit is the important way to realize the large capacity of harmonic compensation. This paper introduces the basic principle of cascade active power filter,for cascade type topology structure based on instataneous reactive power theory to improve the instruction current calculation,make the three-phase DC side voltage control independently,to meet the DC side voltage stability of active power filter. The CPS-SPWM modulation is used to implement the current tracking control,At the same time in order to reduce the start-up process of DC side voltage and current in overshoot. It presents a DC side charging scheme. Finally,the simulation software MATLAB /Simulink simulation verifies its feasibility.

关 键 词：级联型变流器 有源滤波 CPS-SPWM 直流侧预充电 

分 类 号：TM464[电气工程—电器]