Improvement in Dynamic Performance of Indirect Current Control Strategy on Three Phase PWM Rectifier

被引：0
|
作者：
Wang XiaoChen [1 ]
Yang JiangMing [1 ]
Li HongMei [1 ]
Sun FengXiang [1 ]
机构：
[1] Hefei Univ Technol, Sch Elect & Automat Engn, Hefei, Peoples R China
来源：
MATERIALS SCIENCE AND INFORMATION TECHNOLOGY, PTS 1-8 | 2012年 / 433-440卷
关键词：
three phase VSR; indirect current control (ICC); dynamic performance; compensation in series; simulation;
D O I：
10.4028/www.scientific.net/AMR.433-440.7281
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Three phase voltage source PWM rectifier (VSR)'s indirect current control (ICC) strategy has good static performance, simple control steps and low cost. But bad dynamic performance is its inherent drawback. If this weakness is overcome, it is still valued. In this article normal ICC is deeply studied beginning with its mathematical model under synchronous rotating coordinate. It is indicated that its bad dynamic performance originates from bad current response. So an improving scheme adding compensation in series is brought out. Additionally a differential negative feedback loop of DC output voltage is added to limit the voltage overshoot. Lastly the control system's computer simulation model is established by MATLAB and the simulating results prove that improved ICC makes great process in dynamic performance and has advantages of both indirect and direct current control (DCC).
引用
收藏
页码：7281 / 7286
页数：6
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