Exponential Reaching Law-based Design of Motor Control System for a New Energy Public Transport Plug Door
Aiming at the application of brushless motor control system for urban new energy public transport,an expo-nential 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 cur-rent 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 intro-duced.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.
city bus plug doorbrushless motorexponential reaching lawsliding mode control algorithm
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