电力系统及其自动化学报2017，Vol.29Issue(5)：67-71,5.DOI:10.3969/j.issn.1003-8930.2017.05.011
消除直流分量影响的单相锁相环方法
Single Phase-locked Loop Method for Eliminating the Influence of DC Components
摘要
Abstract
DC offset component is usually added into the input signal via the measurement path of grid voltage,which has a great influence on the performance of synchronous reference frame phase locked loop(SRF-PLL). To eliminate this influence,adaptive least mean square(LMS)algorithm is adopted to filter the DC offset component in the grid volt?age input signal. Moreover,a structure that has a simple discrete implementation is added to generate orthogonal sig?nals. The experimental results indicate that the proposed method can eliminate the influence of DC offset component ef?fectively,and it has good steady-state and dynamical performances.关键词
锁相环/直流偏置信号/自适应最小均方算法/正交信号发生器Key words
phase-locked loop/DC offset signal/adaptive least mean square(LMS)algorithm/orthogonal signal generator分类
信息技术与安全科学引用本文复制引用
亓才,王萍,陈博,石记龙..消除直流分量影响的单相锁相环方法[J].电力系统及其自动化学报,2017,29(5):67-71,5.基金项目
高等学校博士学科点专项科研基金资助项目(20120032110070) （20120032110070）
