Control of Improved Full-Bridge Three-Level DC/DC Converter for Wind Turbines in a DC Grid

被引：98
作者：
Deng, Fujin [1 ]
Chen, Zhe [1 ]
机构：
[1] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 01期
关键词：
DC/DC converter; dc grid; full-bridge three-level (FBTL); permanent magnet synchronous generator; wind turbines; POWER ELECTRONICS; DESIGN; TOPOLOGIES; SCHEME;
D O I：
10.1109/TPEL.2012.2198835
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents an improved full-bridge three-level (IFBTL) dc/dc converter for a wind turbine in a dc grid by inserting a passive filter into the dc/dc converter to improve the performance of the converter. The passive filter can effectively reduce the voltage stress of the medium frequency transformer in the IFBTL dc/dc converter. A modulation strategy, including two operation modes, is proposed for the IFBTL dc/dc converter. Then, a voltage balancing control strategy is proposed for the IFBTL dc/dc converter. Furthermore, the control of the wind turbine based on the IFBTL dc/dc converter in a dc-grid system is presented. Finally, a small-scale IFBTL dc/dc converter prototype was built and tested in the laboratory, and the results verify the theoretical analysis.
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页码：314 / 324
页数：11
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