华东交通大学学报2011，Vol.28Issue(5)：14-17,4.
三相不平衡时的PWM整流器锁相环设计
A Design of Soft Phase Lock Loop in Three-phase PWM Rectifier under Unbalance Power Grid
摘要
Abstract
The operation and control of three-phase PWM rectifier is implemented based on obtaining the phase shift of grid voltage accurately. Soft phase lock loop (SPLL) is appropriate to track the phase shift of three-phase unbalance voltage because of its simplicity and flexibility. The paper analyzes the phase shift under unbalance three-phase power grid, studies the principle of SPLL based on instantaneous reactive power theory and designs the secondary harmonic elliptic notch filter. The Matlab simulation mode of the designed SPLL and a three-phase PWM rectifier valid the SPLL with the secondary harmonic elliptic notch filter. This paper has the reference of design of PLL for other power electronic application.关键词
软件锁相环/电压不平衡/二次陷波器/三相PWM整流器Key words
soft phase lock loop/ unbalance power grid/ secondary harmonic notch filter/ three-phase PWM rectifier分类
信息技术与安全科学引用本文复制引用
章勇高,高彦丽,刘焕,龙立中..三相不平衡时的PWM整流器锁相环设计[J].华东交通大学学报,2011,28(5):14-17,4.基金项目
江西省科技厅工业支撑计划项目(2010ZDG02400) （2010ZDG02400）
华东交通大学科学研究项目(10DQ06) （10DQ06）
