Generalized Predictive Control Tuning Based On Controller Matching Method Of High-speed Train

High-speed trains are usually in the form of EMU,and are subject to a variety of complex factors.The speed of high-speed train is continuously improved,nonlinear characteristics of high speed train performance is more and more obvious,usually describe the dynamic process of low speed train control method for high speed train,has been unable to effectively use.So,the research of high-speed train dynamic effective control algorithm,and then according to the control algorithm designed effective controller to realize the safe,stable,efficient operation of the high-speed train has great research significance.The specific research of this paper is as follows:In view of the actual operation of high speed trains,the controller cannot be modified in the process of train control,and the control precision and stability are affected by the unknown disturbance.In this paper,a generalized predictive controller based control(GPC)tuning method,in order to achieve through the GPC tuning and output feedback controller(controller)has the same control effect,and get the GPC tuning parameters,realize the automatic control of high-speed train speed tracking process.By the actual operation parameters of high-speed train model building process has the characteristics of changes over time,using high-speed train generalized predictive control method of controller based on matching,not only have the adaptive modeling and synchronous tuning of controller parameters,therefore,in the actual operation process of high-speed train speed tracking,to study and design a corresponding the controller to control the.In this paper,a generalized predictive controller based control(GPC)tuning method,in order to achieve through the GPC tuning and output feedback controller(controller)has the same control effect,and get the GPC tuning parameters,the design of high-speed train based on generalized predictive controller,realize high speed automatic train control.First,the generalized predictive control and optimal controller,the optimal function and control law of the respective coefficient equation,obtain the generalized predictive control and gain;based on generalized predictive control gain,the objective function is transformed into a convex optimization problem with linear matrix inequality(LMI)method,the tuning parameters of the generalized predictive control.The generalized predictive controller can adaptive modeling parameters and matching the controller model,controller model matching,avoid model parameter mismatch,which can guarantee the stability of the controller model,finally realizes the high-speed train for a given speed tracking effect.The simulation results show that the GPC and the optimal controller can be well matched,and high-speed train based on generalized predictive control effect is very effective,in the face of the outside controller,some unknown interference,still be able to ensure the normal operation of high-speed train safety and stability,the control effect is obviously superior to the single generalized predictive controller.In this paper,the research work of high speed train operation control,to achieve high-speed train safety,comfort and punctuality,has a certain theoretical significance practical.At the same time,it also has some reference value for the future automatic train operation(ATO)control.