风力发电模拟器的控制策略研究

Control Strategy Research of Wind Generation Simulator

为了解决在实验室里进行风力发电技术研究的问题,设计了风力发电模拟器。针对风力发电模拟器的特点,建立了执行元件的数学模型。采用无速度传感器直接转矩控制算法对模拟器进行控制。在风力发电模拟器上的仿真和实验结果表明,采用这种控制策略的感应电机的输出轴转速可以实时跟随风速给定信号的变化,并且迅速达到稳定,稳态精度很高,具有很好的动态性能。

To resolve the problem of studying wind generation technology in the laboratory, a wind generation simulator was designed. Aiming at the characteristic of the wind generation simulator, the mathematic model of actuator of the simulator was built. A direct torque control method without sensor was designed for controlling the simulator performance. The simulative and experimental results on the wind generation simulator verify that the rotational velocity of drive shaft of induction machine with the control strategy is changed with the demanded signal of wind speed, and the steady value is rapidly obtained. There are the higher steady accuracy and the better dynamic performance in the wind generation simulator with the control strategy.