Dual Converter Operating with Floating Capacitors Connecting Open-End Winding Doubly-Fed Induction Generator to a DC Microgrid

被引：1
|
作者：
Soares, Emerson L. [1 ]
Jacobina, Cursino B. [1 ]
Rocha, Nady [2 ]
Melo, Victor Felipe M. B. [3 ]
机构：
[1] Univ Fed Campina Grande, Dept Elect Engn, Campina Grande, Paraiba, Brazil
[2] Univ Fed Paraiba, Dept Elect Engn, Joao Pessoa, Paraiba, Brazil
[3] Univ Fed Paraiba, Dept Renewable Energy Engn, Joao Pessoa, Paraiba, Brazil
来源：
2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2021年
关键词：
DC Microgrid; Wind Energy Conversion Systems; Doubly-Fed Induction Generator; Open-End Winding; Floating Capacitors; Active and Reactive Power Control; DFIG; SYSTEM; DESIGN;
D O I：
10.1109/ECCE47101.2021.9595156
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper presents a dual converter system to connect a three-phase doubly-fed induction generator (DFIG) to a dc microgrid. The proposed converter connects an uncontrolled converter and a full-controlled converter in series with the generator stator windings, in an open-end winding (OEW) configuration. The controlled converter is connected to an independent dc link, based on floating capacitors. The paper discusses the converter operating principles, pulse-width modulation (PWM), DFIG power control, and the floating capacitors voltage regulation. Simulation and experimental results are presented, showing the steady-state operation for a 0.56-kW DFIG. Finally, it was verified that the proposed system can regulate the voltages of the floating capacitors with no need for external sources, and maintain sinusoidal voltages and currents over the DFIG stator windings.
引用
收藏
页码：218 / 225
页数：8
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