工矿自动化2013，Vol.39Issue(6)：70-73,4.DOI:10.7526/j.issn.1671-251X.2013.06.018
一种用于动态电压恢复器的电压跌落检测算法
A detection algorithm of voltage sag used in dynamic voltage restorer
摘要
Abstract
In view of contradiction between compensation rapidity and anti-interference performance existed in traditional detection algorithm of voltage sag of d-q detection algortihom and Hilbert detection algorithm,a new detection algorithm of voltage sag combined d-q detection algorithm with Hilbert detection algorithm was proposed,namely,voltage signal of grid side was sampled,and the signal passed through d-q detection unit to get harmonic compensation waveform at first,then the signal passed through Hilbert detection unit to get voltage amplitude compensation waveform after the third harmonic was filtered from the signal.The two kinds of compensation waveforms were made superposing to get the final compensation waveform at last.The simulation results show that the detection algorithm has better compensation effect on voltage sag with the third harmonic and abilities of compensation rapidity and antiinterference.关键词
动态电压恢复器/电压跌落/谐波补偿/电压补偿/d-q变换/Hilbert变换Key words
dynamic voltage restorer / voltage sag / harmonic compensation / voltage compensation / d-q transformation/ Hilbert transformation分类
矿业与冶金引用本文复制引用
田明,王昌南,贺诚..一种用于动态电压恢复器的电压跌落检测算法[J].工矿自动化,2013,39(6):70-73,4.基金项目
科技部中小企业创新基金重点项目(11C26213204616). （11C26213204616）
