适用于动态电压恢复器电压检测的滤波算法  

Filtering Method for Dynamic Voltage Regulator

作　　者：张强[1] 周晖[2] 齐智平[2] 

机构地区：[1]哈尔滨工程大学自动化学院,哈尔滨150001 [2]中国科学院电工研究所,北京100190

出　　处：《电工技术学报》2009年第8期135-140,共6页Transactions of China Electrotechnical Society

基　　金：哈尔滨市科技创新人才研究专项基金资助项目(2009RFQXG078)

摘　　要：动态电压恢复器(DVR)是目前治理电网动态电压问题中有效的手段之一,为了能够准确地监测电网电压的变化,数字滤波是DVR检测单元中必不可少的一个环节。采用幅值突变鉴别的电压增量惯性滤波法,既可以克服以往惯性滤波中时滞过大的缺点,又可以保证滤波后的电压波形在电压突变处的真实性,完全可以满足动态电压恢复器对检测单元滤波的需求。Dynamic voltage regulator （DVR） is an efficacious measure to solve power quality problems. It is indispensable for DVR to adopt digital filter in its control system to detect voltage sags and swells accurately. Voltage increment inertial filter that can distinguish the sudden changes of voltage amplitude, can conquer the time delay problem of the conventional inertial filter, and ensure the creditability of filtered voltage waveform at the point of amplitude sudden change. So this filter method can meet the need of the test system of DVR perfectly.

关 键 词：动态电压恢复器 幅值鉴别 惯性滤波 

分 类 号：TM714.2[电气工程—电力系统及自动化]