A Coordinated Control Method to Smooth Wind Power Fluctuations of a PMSG-Based WECS

被引：262

作者：

Uehara, Akie ^{[1
]}

Pratap, Alok ^{[1
]}

Goya, Tomonori ^{[1
]}

Senjyu, Tomonobu ^{[1
]}

Yona, Atsushi ^{[1
]}

Urasaki, Naomitsu ^{[1
]}

Funabashi, Toshihisa ^{[2
]}

机构：

[1] Univ Ryukyus, Dept Elect & Elect Engn, Fac Engn, Okinawa 9030213, Japan

[2] Meidensha Corp, Tokyo 1416029, Japan

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2011年 / 26卷 / 02期

关键词：

Permanent magnet synchronous generator; pitch control; power smoothing; wind energy conversion system; TURBINE-GENERATOR; SYSTEMS; ENERGY;

D O I：

10.1109/TEC.2011.2107912

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：

This paper presents an output power smoothing method by a simple coordinated control of DC-link voltage and pitch angle of a wind energy conversion system (WECS) with a permanent magnet synchronous generator (PMSG). The WECS adopts an AC-DC-AC converter system with voltage-source converters (VSC). The DC-link voltage command is determined according to output power fluctuations of the PMSG. The output power fluctuationsin low-and high-frequency domains are smoothed by the pitch angle control of the WECS, and the DC-link voltage control, respectively. By using the proposed method, the wind turbine blade stress is mitigated as the pitch action in high-frequency domain is reduced. In addition, the DC-link capacitor size is reduced without the charge/discharge action in low-frequency domain. A chopper circuit is used in the DC-link circuit for stable operation of the WECS under-line fault. Effectiveness of the proposed method is verified by the numerical simulations.

引用

页码：550 / 558

页数：9

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