摘要
针对城市新能源公交塞拉门无刷电机控制系统应用,提出了一种指数趋近律的控制方法。所提出的方法改进了传统六步换向控制法中控制转矩脉动较大的问题,同时也改进了矢量控制方法中,因难以获取电机转子角度信号而对电机相电流解算不能满足实际需求,需使用高精密传感器从而带来成本高的问题。基于上述情况,设计一种基于指数趋近律的滑模控制器,引入积分项和指数趋近律;最后对所提出的控制方法进行了仿真实验,所提出的控制方法可以减少系统快速达到稳态的响应时间,并能有效控制滑模控制方法自身所带来的抖振问题。仿真结果表明所提出的方法对电机转速响应和速度超调量有效。
Aiming at the application of brushless motor control system for urban new energy public transport,an exponential approach law control method is proposed in this paper.The proposed method improves the problem of large control torque pulsation in the traditional six-step commutation control method,and also improves the problem that the phase current of the motor cannot meet the actual demand due to the difficulty in obtaining the angle signal of the motor rotor in the vector control method,and avoids the problem of high cost caused by the use of high-precision sensors.Firstly,a sliding mode controller based on exponential reaching law is designed,integrating terms and exponential reaching law are introduced.Finally,simulation experiments are carried out on the proposed control method.The proposed control method can improve the response time of the system to reach steady state quickly,and effectively control the buffeting problem caused by the sliding mode control method itself.The simulation results show that the proposed method is effective for the motor speed response and speed overshoot.
出处
《工业控制计算机》
2024年第8期72-73,76,共3页
Industrial Control Computer
基金
江苏省青年教师企业实践项目基金(2023QYSJ061)
院级科技重点课题科研项目(KY2023010)。
关键词
城市公交塞拉门
无刷电机
指数趋近律
滑模控制算法
city bus plug door
brushless motor
exponential reaching law
sliding mode control algorithm
