电工技术学报2016，Vol.31Issue(22)：83-91,9.
一种嵌入重复控制内模的三相锁相环的设计与实现
A Novel Three-Phase Phase-Locked Loop Method Based on Internal Model of Repetitive Control
摘要
Abstract
As one of the key technologies of distributed grid-connected power generation system, grid synchronization technique is always the research hotspot. Usually numerous filters (or regulators) are needed for current phase-locked loop (PLL) algorithms to totally eliminate harmonic. Hence, a new phase-locked loop based on internal model of repetitive control is put forward. An extraction structure which can totally eliminate harmonic is designed. Wherein, the characteristic of the internal model that generates the resonant peak at grid fundamental frequency and every harmonic frequency is used, and the characteristic of multiple-complex coefficient-filter that can separate positive and negative sequence of grid fundamental wave is also taken into account. The grid frequency, phase and other related information can be extracted from the pure positive sequence by synchronous frame PLL. Finally, the proposed PLL is tested under distorted and unbalanced grid by Matlab/Simulink simulation and the related experiment. The results show the validity and superiority of this method.关键词
锁相环/内模/电网谐波/复数滤波器/正序分量Key words
Phase-locked loop/internal model/power network harmonic/complex filter/positive sequence分类
信息技术与安全科学引用本文复制引用
何宇,漆汉宏,邓超,张迪,金卫国..一种嵌入重复控制内模的三相锁相环的设计与实现[J].电工技术学报,2016,31(22):83-91,9.基金项目
河北省应用基础研究计划重点基础研究项目（13964304D），高等学校博士学科点专项科研基金（20121333110007），江苏省第十二批“六大人才高峰”项目（JY-019），江苏省高校自然科学研究面上项目（16KJB460028）和江苏信息职业技术学院2016年教科研课题资助。 （）
