双馈风力发电变流器谐波建模与特性分析Harmonic Modeling and Characteristic Analysis of Converters in Doubly Fed Wind Power Generation
沈阳武,王世伟,张斌,刘佳润
摘要(Abstract):
双馈风力发电系统系统中包含电力电子变流器,变流器滤波电容、电感与变流器控制环节交互作用容易引起谐振造成严重谐波放大问题。本文根据双馈风力发电系统电网侧变流器和转子侧变流器控制特点,分别建立了电网侧变流器和转子侧变流器输出电流与谐波源之间的关系得到变流器谐波等效模型,研究分析了两个变流器谐波输出特性影响因素。研究分析结果表明,可以通过合理调节变流器控制参数抑制双馈发电系统谐波输出。采用PSCAD仿真模型验证了理论分析的正确性。
关键词(KeyWords): 谐波建模;谐波特性;变流器;新能源发电;双馈风机
基金项目(Foundation):
作者(Author): 沈阳武,王世伟,张斌,刘佳润
DOI: 10.19635/j.cnki.csu-epsa.000391
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