Parallel Operation of Full Power Converters in Permanent-Magnet Direct-Drive Wind Power Generation System

被引：111

作者：

Li, Rui ^{[1
]}

Xu, Dianguo ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Elect Engn, Harbin 150001, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2013年 / 60卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Full power converters; parallel operation; wind power generation; zero-sequence circulating-current (ZSCC); SLIDING-MODE CONTROL; CIRCULATING CURRENTS; INVERTER; DESIGN; STRATEGY; PWM;

D O I：

10.1109/TIE.2011.2148684

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Parallel operation is an effective way to improve the capacity of full power converter in permanent-magnet direct-drive wind power generation system. But it causes the zero-sequence circulating-current (ZSCC), which brings current discrepancy, current waveform distortion, power losses, and electromagnetic interference (EMI), etc. The paper proposes a new topology of full power converters which are composed of n full power converters. The n converters have the same structures and are in parallel with each other. Besides, the average models of the system are analyzed and the fundamental mechanism of ZSCC generation is given. Based on the above analysis, the control strategy of the system is designed. The simulation and experiment results of two parallel full power converters show the feasibility of the proposed theory and control scheme.

引用

页码：1619 / 1629

页数：11

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