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文章摘要
一种双馈风力发电机组定子低次谐波电流抑制的方法
A Scheme of Low Harmonic Current Suppression for Doubly Fed Induction Generator
Received:August 28, 2017  Revised:August 28, 2017
DOI：
中文关键词: 双馈变流器  低次谐波电流  转子电压  谐振调节器  根轨迹
英文关键词: doubly fed induction generator(DFIG)  low harmonic current  rotor voltage  resonant  root locus
基金项目:
Author NameAffiliationE-mail
tanzhukui* Electric Power Research Institute of Guizhou Power Grid Co Ltd tanzhukui@163.com 
Xu Yutao Electric Power Research Institute of Guizhou Power Grid Co Ltd xuyutao@163.com 
xiaoyong Electric Power Research Institute of Guizhou Power Grid Co.，Ltd. xiaoyong322@163.com 
lvqiansu Electric Power Research Institute of Guizhou Power Grid Co.，Ltd. 574655451@qq.com 
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中文摘要:
      电网电压的低次谐波会影响风电变流器的并网电能质量。传统的PI调节器无法有效实现对谐波的抑制,因此,本文以双馈风力发电系统为背景,在电网电压含有低次谐波电压的情况下,分析并推导了电机定转子的数学模型。通过对数学模型的分析,利用单R谐振调节器对定子电流实时分解的方式,将特定次谐波电流的调节量作为谐波电压补偿量,参与转子侧变流器控制,实现了对定子侧低次谐波电流的抑制。并利用波特图和根轨迹的方法分析了系统的稳定性及谐振调节器参数的选择方法。最终以5、7次谐波为例,通过仿真和实验验证了所提出方法的有效性。
英文摘要:
      
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