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首页> 外文会议>IEEE International Electric Machines and Drives Conference;IEMDC '09 >Parallel interleaved grid-connected converters in MW-level wind power generation
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Parallel interleaved grid-connected converters in MW-level wind power generation

机译：兆瓦级风力发电中的并联交错式并网变流器

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With the individual capacity of wind power generation system increasing, the demand for high power grid-connected converters is growing, which is usually limited by the available semiconductor technology. One solution is multiple lower power units connected in parallel. In this paper, direct parallel and interleaved parallel are analyzed and compared. Then it focuses on two parallel interleaved converters. The generating mechanism of high frequency circulating current and low frequency oscillation circulating current are both studied. Also, an interleaved SVPWM and the corresponding control strategy of circulating current are introduced. Finally, the described strategy has been implemented in a 1.5 MW grid-connected converter for wind power generation, providing a satisfactory performance.
机译：随着风力发电系统的单个容量的增加，对高功率并网转换器的需求也在增长，这通常受到可用半导体技术的限制。一种解决方案是将多个较低功率的单元并联。本文对直接并行和交错并行进行了分析和比较。然后重点介绍两个并行交错转换器。研究了高频循环电流和低频振荡循环电流的产生机理。此外，介绍了交错式SVPWM和相应的循环电流控制策略。最后，所描述的策略已在1.5 MW并网转换器中用于风力发电，实现了令人满意的性能。

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