摘要
针对异步电机变频调速系统传统PI控制器存在超调大、响应速度慢及系统稳定性差的问题,提出采用滑模控制器代替PI控制的转速环,以解决PI控制器参数固定带来的调速缺点。通过MATLAB/SIMULINK软件搭建仿真模型,将仿真实验结果与传统PI控制器对比,仿真结果表明,异步电机在滑模控制的速度环下有较强的鲁棒性和稳定性。
In order to improve the problem of large overshoot,slow response speed and poor system stability in traditional PI controllers for asynchronous motor variable frequency speed regulation systems,a sliding mode controller is proposed to replace the PI-controlled speed loop.The simulation model was built by MATLAB/SIMULINK software,and the experimental results were compared with traditional PI controllers.The simulation results show that the asynchronous motor has strong robustness and stability under the speed loop of sliding mode control.
出处
《科技创新与应用》
2020年第10期16-17,共2页
Technology Innovation and Application
关键词
异步电机
变频调速
PI控制
滑模控制
asynchronous motor
variable frequency speed regulation
PI control
sliding mode control
