高空螺旋桨驱动电机控制系统的仿真研究

螺旋桨的负载特性不仅与飞行器的飞行高度相关,还与其驱动电机的转速呈现非线性关系,若驱动电机采用传统的PID控制方法,较难取得理想的控制效果.为了解决这一问题,在分析了驱动电机的数学模型和螺旋桨负载特性的基础上,设计了一种模糊自适应PID控制方法.并在Matlab/Simulink中建立了控制系统的仿真模型,进行了仿真实验.实验结果表明,模糊自适应PID控制方法动静态品质良好、鲁棒性强,控制效果明显优于传统的PID控制器.

Simulation Study on Motor Control System Driven High Altitude Airscrew

The load characteristic of the airscrew not only is associated with aircraft flight altitude,but also shows non-linear relationship with its drive motor speed.If the driven motor using the traditional PID control method,it is difficult to achieve the desired control effect.In order to solve this problem,a fuzzy adaptive PID control method is designed based on the analysis of the driven motor mathematical models and the load characteristic of airscrew.The model of the BLDCM speed-adjusting system is established and the simulation experiment is accomplished in Matlab/Simulink.Simulation results show that the fuzzy adaptive PID control has better control performance compared with the conventional PID control,good static and dynamic characteristics,robustness and so on.