Speed and position observer of DFIG based on rotor current vector angle deviation

被引：0

作者：

Yang, Shuying ^{[1
]}

Zhang, Xing ^{[1
]}

Zhang, Chongwei ^{[1
]}

Xie, Zhen ^{[1
]}

Cao, Renxian ^{[2
]}

机构：

[1] Hefei University of Technology, Hefei 230009, China

[2] SUNGROW Power Supply Corporation Limited, Hefei 230088, China

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2009年 / 33卷 / 04期

关键词：

Electric fault currents - Model reference adaptive control - Asynchronous generators - Turbogenerators - Wind Turbine Generators;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

By further study on the previous position-observing schemes for doubly fed induction generators (DFIGs), an improved observing scheme based on rotor current vector angle deviation (RCVAD) is proposed. In contrast to stator-flux-based or rotor-current-based model reference adaptive system (MRAS) position observing schemes, the RCVAD-based observer has good characteristics of linearity, and its forward control gain is independent of DFIG rotor current value. Consequently, the DFIG sensorless control system has better dynamic performances. Simulations on a 2 MW DFIG validate the correctness of the proposed sensorless control strategy, and its preferable dynamic performances are confirmed by comparing with the rotor current-based MRAS position observer. This work is supported by the Project of the National Eleventh-Five Year Research Programs of China (No.2006BAA01A18).

引用

页码：92 / 95

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