Harmonic Suppression Mechanism Analysis for Wind Power Grid-connected Converter and Research on Control Strategy

被引：0
|
作者：
Meng Yanfeng [1 ]
Hu Shuju [2 ]
Xu Honghua [2 ]
机构：
[1] Univ Chinese Acad Sci, CAS, Inst Elect Engn, Beijing, Peoples R China
[2] Chinese Acad Sci, Inst Elect Engn, Beijing, Peoples R China
来源：
PROCEEDINGS OF 2017 CHINA INTERNATIONAL ELECTRICAL AND ENERGY CONFERENCE (CIEEC 2017) | 2017年
关键词：
Non-ideal grid; Wind power; Grid-connected converter; Harmonic suppression mechanism; Compound control; VOLTAGE; COMPENSATION;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In order to improve adaptability for wind power grid connected converter under non-ideal grid conditions and reduce the harmonic influence, harmonic suppression mechanism for grid-connected converter is depth analyzed and harmonic suppression method and theory is derived. Be limited by complexity-of the control system, compound control strategy composed by repetitive controller paralleled with PI controller is proposed for grid-connected converters control in this paper. System stability is analyzed, Geometric representation for repetitive controller stability-is shown in figure and Control system difference equation is deduced. Using the proposed control strategy, no difference tracking current control is achieved in the fundamental positive sequence reference frame. The gird current harmonic can be effectively-reduced and the converter grid adaptability is improved. The simulation and experimental results verified the effectiveness of the proposed control strategy.
引用
收藏
页码：263 / 268
页数：6
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