Study and Implementation of Closed Loop Control Based on Double Synchronous Rotating Frame for EMU Auxiliary Inverter with Unbalanced Load

被引：0
|
作者：
Du, Huiqing [1 ]
Liu, Zhigang [1 ]
Fu, Yao [1 ]
Wang, Lei [1 ]
Diao, Lijun [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing, Peoples R China
来源：
PROCEEDINGS OF THE 2013 INTERNATIONAL CONFERENCE ON ELECTRICAL AND INFORMATION TECHNOLOGIES FOR RAIL TRANSPORTATION (EITRT2013), VOL II | 2014年 / 288卷
关键词：
Auxiliary inverter; Unbalanced load; Method of symmetrical component; Double-loop control; Double synchronous rotating frame; NONLINEAR LOADS;
D O I：
10.1007/978-3-642-53751-6_15
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
As one of the EMU auxiliary inverter's important performances, the symmetry of three-phase voltage puts forward high requirement in the inverter's topologies and control strategies. Based on the method of symmetrical component, this paper builds positive-, negative-, and zero-sequence mathematical model of the three-phase inverter system with unbalanced load, and then analyses the generation mechanism of asymmetry output voltage. Afterwards it is proposed a double-loop SVPWM control strategy based on double synchronous rotating frame, and further analysis of the working mechanism and realization mode is raised. Finally, it turns out to be reliable and feasible to apply the control strategy after being tested with virtual DSP simulation model with MATLAB, and on a 3 kVA experimental prototype.
引用
收藏
页码：147 / 159
页数：13
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