电气传动2017，Vol.47Issue(8)：19-24,6.DOI:10.19457/j.1001-2095.20170805
基于一种新型锁相环的三相PWM整流器矢量控制
Vector Control for Three Phase PWM Rectifier Based on a New Phase-locked Loop
摘要
Abstract
The grid voltage orientation of three-phase rectifier has some shortcoming,such as high cost with the gird voltage sensor method for grid voltage orientation and the low accuracy of the virtual grid flux orientation problem without grid voltage sensors. For these problems,a new method for vector control of PWM rectifier based on new phase-locked loop was presented.The method was based on the voltage static coordinate system structure to actualize vector control for the three-phase PWM rectifier. Single phase voltage was used to construct two phase voltage with 90 degrees phase difference. In addition,by delaying a quarter of a network voltage cycle,the control strategy was same as the grid voltage balance during the grid voltage unbalance. It could be realized easily ,with a stable bus voltage and a good vector control. It could track the angle of the network voltage with a lower cost. Simulation and experiment results have showed that the proposed method is right and valid,which have some application values.关键词
矢量控制/两相电压构造/锁相环/三相PWM整流器Key words
vector control/two phase voltage structure/phase-locked loop/three-phase PWM rectifier分类
信息技术与安全科学引用本文复制引用
李文芳,焦妍,刘星平..基于一种新型锁相环的三相PWM整流器矢量控制[J].电气传动,2017,47(8):19-24,6.基金项目
湖南省教育厅科研资助项目(17K027)(15C0489) （17K027）
