风力发电系统多重化升压斩波器瞬时电流控制(英文)

被引:5
作者
梁晖
石威威
机构
[1] 北京交通大学电气工程学院
关键词
瞬时电流控制; 升压斩波器; 风能; 低频谐波;
D O I
10.19595/j.cnki.1000-6753.tces.2011.04.014
中图分类号
TM464 [逆变器];
学科分类号
080801 ;
摘要
在详细分析了多重化升压斩波器工作原理的基础上提出了一种瞬时电流控制方法。该多重化升压斩波器应用于兆瓦级直驱型风力发电系统中,文中给出了系统结构及控制策略。为了得到升压斩波器的连续数学模型,对其开关函数进行了傅里叶分析,从而推导出输入电流中的低频分量和高频分量。针对其中的低频分量,采用了所提出的瞬时电流控制方法加以抑制,并分析了系统动态响应性能。实验结果表明该控制方法可以有效抑制输入电流中的低频谐波,同时具有较快的动态响应,验证了理论分析结果。
引用
收藏
页码:86 / 92
页数:7
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