Flexible Control of DC-link Voltage for Doubly Fed Induction Generator during Grid Voltage Swell

被引：0
|
作者：
Liu, Changjin [1 ]
Huang, Xiaobo [1 ]
Chen, Min [1 ]
Xu, Dehong [1 ]
机构：
[1] Zhejiang Univ, 38 Zheda Rd, Hangzhou 310027, Peoples R China
来源：
2010 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION | 2010年
关键词：
Back-to-back converter; grid voltage swell; DC-link voltage; voltage control; losses; doubly fed induction generator; WIND TURBINES; CONTROL STRATEGY; CONVERTERS; ROTOR;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper studies the impacts of grid voltage swell on the dc-link voltage for doubly fed induction generator (DFIG). A flexible algorithm of the dc-link voltage is proposed to meet the requirements of wide variation in grid voltage. The dc-link voltage reference is regulated with the variation of grid voltage. Thus, the dc-link voltage is maintained to a constant during normal operation but a relatively high value during grid voltage swell. The power losses are evaluated with the conventional control strategy and the proposed control strategy. The results show that the flexible control method will reduce power losses of the back-to-back converter. A laboratory platform is developed to verify the analysis and the control strategy.
引用
收藏
页码：3091 / 3095
页数：5
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