农村电网中有源电力滤波器的研究  

Research on Active Power Filter in Rural Power Grid

作　　者：孙宁[1] 刘国海[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《农机化研究》2009年第2期205-207,237,共4页Journal of Agricultural Mechanization Research

基　　金：江苏省高新技术项目(GB2004024);江苏省镇江市攻关项目(GY2005006)

摘　　要：随着农村电网中电力电子装置的日益增多,农村电网中的谐波污染问题越来越严重。为此,简要分析了并联型有源电力滤波器的系统结构和工作原理;建立了采用DSP数字控制的适合于三相三线制的并联型有源电力滤波系统,重点分析了该系统指令电流和PWM信号的产生、硬件结构与软件流程,并通过实验验证了该系统可以有效地抑制农村电网谐波,改善农村电网电能质量。With the more applications of the power electronic devices, the harmonic pollution is becoming more and more serious in rural power grid. The configuration and principle of shunt active power filter is introduced briefly in this paper. A digitally controlled shunt active power filter based on DSP is designed for three -phase three -wire system. The hard- ware configuration, software flow chart, derivation of compensating signal and PWM wave are analysed. According to the result of the experiment , the system can validly restrain the harmonic and improve the power quality in rural power grid.

关 键 词：农村电网 谐波污染 有源电力滤波器 数字控制系统 

分 类 号：TM727.1[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]