有源电力滤波器死区问题及其补偿对策  

Dead-time and Compensation Strategies of Active Power Filter

作　　者：王少杰[1,2] 罗安[2] 

机构地区：[1]邵阳学院信息与电气工程系,邵阳422000 [2]湖南大学电气与信息工程学院,长沙410082

出　　处：《高电压技术》2009年第5期1170-1176,共7页High Voltage Engineering

基　　金：国家自然科学基金(60774043);湖南省教育厅优秀青年科研项目(08B071)~~

摘　　要：为了解决对有源电力滤波器存在的死区影响问题,对死区效应产生的机理进行了详细分析,对不同的死区时间及不同开关频率条件下死区对有源电力滤波器输出的影响进行了研究。结合工程经验和有源电力滤波器工作的特点,提出了电流反馈死区和无死区开关控制模式两种补偿方法,并通过实验室搭建的注入式混合型有源电力滤波器实验平台进行实验,结果表明,采用所述死区补偿方法,死区的不良影响得到有效的抑制,取得了较为理想的效果。In order to solve the problem of dead-time of the active power filters, the dead-time effect, and the impact of the active power filter output for different time and different switching frequency of dead-time were studied and analyzed in detail. By combining the application experience and the characteristic of the active power filter, novel current feedback dead-time compensation and no dead-time switch mode methods of dead-time compensation were proposed. Experimental results show the ideal efficiency of this proposed method is improved through the injection type hybrid active power filter experiment platform.

关 键 词：死区效应 逆变器 开关模式 电流反馈 脉冲宽度调制 注人式 有源电力滤波器 

分 类 号：TN713.8[电子电信—电路与系统]