控制工程 ›› 2013, Vol. 20 ›› Issue (5): 844-848.

• 综述与评论 • 上一篇    下一篇

双馈风力发电机无速度传感器控制研究

刘婷黄守道邓秋玲陈国富浦清云郭灯塔   

  • 出版日期:2013-09-20 发布日期:2013-11-28

Research on the Control of Doubly - fed Induction Wind Power Generator without Speed Sensor

LIU TingHUANG Shou-daoDENG Qiu-lingCHEN Guo-fuPU Qing-yunGUO Deng-ta   

  • Online:2013-09-20 Published:2013-11-28

摘要:

间接利用定子、转子电流间的比例关系,分析转子电流和转子位置观测之间的关系,提出了一种基于PQ 功率转子位置观测法的DFIG 矢量控制策略,这种控制策略克服了其他速度观测方式在同步速运行时观测不准的缺陷,具有较宽广的运行范围,能够取得与有速度传感器控制相似的稳态性能。最后构建了DFIG 仿真与实验平台,对所述无位置传感器控制策略进行了仿真与实验验证。仿真结果和试验结果证明了这个控制方法的正确性与有效性。

关键词: 风力, 速度传感器, 双馈, 异步发电机, 控制

Abstract:

The proportional relation of the current of stator and rotor is indirectly used to analyze the relation of the rotor current and rotor
position observer. By analyzing the simulation results a vector control strategy for doubly - fed induction generator ( DFIG) based on PQ -
power rotor position observer is proposed. This control strategy overcomes the drawback of incorrect observation in other speed observer
methods when running at the synchronous speed. The proposed control strategy has wider speed range,and can achieve the control performance
similar as the control method using speed sensor. Finally,a DFIG experimental system is built up and the experiments are performed.
The simulation and experimental results have a good agreement verifying the effectiveness of the proposed control method.

Key words: wind power, speed sensor, doubly - fed, induction generator, control