AC Current Sensorless Control of Three-phase Three-Wire PWM Rectifiers

被引：6
|
作者：
Jie Yu [1 ]
Tang, Yu-peng [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing, Peoples R China
来源：
2008 7TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, VOLS 1-23 | 2008年
关键词：
PWM rectifier; AC current sensorless; current reconstruction;
D O I：
10.1109/WCICA.2008.4592886
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an AC current sensorless control scheme of three-phase PWM rectifier is proposed. A method for reconstructing the AC currents from the dc-link current and switching state is given. A method of modifying the switching state of PWM rectifier is given when the input currents cannot be reconstructed. The control system based on SVPWM includes two PI controllers which are used to regulate the ac currents and dc-link voltage. The proposed control scheme reduces the system's cost and improves its reliability. The feasibility of this scheme has been confirmed through computer simulations.
引用
收藏
页码：6516 / 6520
页数：5
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