动态电压恢复器谐波补偿性能研究  

Research on harmonic compensation performance of dynamic voltage restorer

作　　者：郑洁[1] 郭永明[1] 刘观起[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《黑龙江电力》2016年第5期456-459,470,共5页Heilongjiang Electric Power

摘　　要：为研究动态电压恢复器(dynamic voltage restorer,DVR)谐波补偿性能,在理论上分析了传统的比例谐振控制器和改进后具有谐波补偿功能的比例谐振控制器的频域特性,分别将二者应用到动态电压恢复器的控制回路中,推导出相应的传递函数关系,并在动态响应指标和稳态补偿精度方面进行了对比,综合评价了两种控制器控制下动态电压恢复器对谐波补偿的性能。通过MATLAB/SIMULINK仿真实验,以及DVR在两种控制策略下补偿前后波形和频谱,验证了理论分析的合理性。In order to study the harmonic compensation performance of dynamic voltage restorer（ DVR）,this paper analyzed theoretically the frequency- domain characteristics of the traditional proportional resonant（ PR） controller and the improved one with the function of harmonic compensation,deduced the relevant transfer functions by installing the above two controllers in the control circuit of DVR,compared the dynamic response index and the steady compensation precision,and evaluated the harmonic compensation performance of two controllers. Through the simulation via MATLAB / SIMULINK,and waveforms and frequency spectrums before and after compensation under the two control strategies,which verify the rationality of the theoretical analysis was verified.

关 键 词：动态电压恢复器 比例谐振控制 谐波补偿 动态响应指标 稳态补偿精度 

分 类 号：TM933[电气工程—电力电子与电力传动]