Cross Coupling Control Method for Mechanical Braking System of Maglev Train
The mechanical braking system generates a certain amount of energy consumption during the braking pro-cess.If the control strategy is not reasonable,it can easily lead to excessive braking energy consumption and affect the normal operation of maglev trains.Therefore,a cross coupling control method for the mechanical braking system of maglev trains is proposed.Based on the structural framework of the mechanical braking system of the maglev train,the transfer coefficient of the hydraulic pressure servo system and the friction coefficient between the brake shoe and the track are calculated to obtain the transfer function of the mechanical braking system of the maglev train.Based on this transfer coefficient,an air gap and velocity dual synchronous cross coupling controller is intro-duced to calculate the air gap synchronization error and disturbance,and obtain the cross coupling control results.Using the fruit fly optimization algorithm(FOA)to optimize the control parameters of the controller,the optimal control parameters are obtained,and then the cross coupling stable control of the mechanical braking system of the maglev train is achieved.The experimental results show that the proposed method can obtain the optimal control parameters and improve control accuracy and efficiency.
NETL
NSTL
万方数据
维普
