基于转子电流的模型参考自适应模糊控制双馈风力发电机转子位置观测器设计

Design of the double-fed induction generator rotor position observer based on the model reference adaptive fuzzy control with the rotor currents

空间矢量控制技术可以实现双馈风力发电机的功率解耦控制,在控制过程中需要对转子位置进行检测。针对常规的基于转子电流的双馈风力发电机模型参考自适应转子位置观测器的不足,提出了一种基于转子电流的模型参考自适应模糊控制双馈风力发电机位置观测器的设计方法。该方法将参数自整定模糊PI控制技术引入转子位置观测器的设计中,以提高转子观测器的跟踪效果和动态品质。Matlab/Simlink仿真结果表明所设计的模型参考自适应模糊控制转子位置观测器能够快速准确地估测转子速度和位置角度,具有良好的动态品质。

The space vector control is used to control the active power and reactive power of the doubly-fed induction generator（DFIG）respectively.I t is necessary to detect the rotor position during the control process.The model reference adaptive fuzzy control（MRAFC） rotor position observer with rotor current is proposed to overcome the shortcomings of the conventional model reference adaptive control（M RAC）r otor position observer in this paper.T he parameter self-tuning fuzzy PI controller is used to design the rotor position observer with the proposed method to improve the tracing results and the dynamic performances of the rotor position.The simulation results in Matlab/Simlink suggest that the MRAFC rotor position observer has a nice dynamic performance and the observer can trace the rotor speed and rotor position angle quickly and accurately.