The Research Of Switched Reluctance Motor Based On Iterative Learning And Sliding Mode Control

Since the invention of Switched Reluctance Motor(Switched Reluctance Motor,SRM),it has been replacing the traditional motor gradually because of its simple structure,low cost,reliable operation.The SRM has been extensively used in many practical applications,such as electric vehicles,aerospace,and so on.However,it also has shortcomings.Due to the special nonlinear structure of the switched reluctance motor,it is difficult to establish the accurate mathematical model.Thus,the iterative learning control is utilized to weaken the motor model in this paper.Meanwhile,in order to make up the deficiency of the robustness in the iterative learning control,the sliding mode variable structure control is joined in this paper.A fuzzy control algorithm is introduced to weaken the chattering in the process of sliding mode variable structure control.Firstly,this paper introduces the development and current status of the switched reluctance motor,the sliding mode variable structure control and iterative learning control.The basic structure of the composition of switched reluctance motor,working principle,control strategy,the basic equation and modeling methods are detailed described.Then,the iterative fuzzy sliding mode algorithm is introduced to deal with the difficulty in establishing the switched reluctance motor mathematical model.And the principles of iterative learning control,sliding mode variable structure control and fuzzy control are summarized respectively.Furthermore,the iterative learning controller is designed by the sliding mode variable structure controller and fuzzy controller.Finally,the iteration fuzzy sliding mode controller is designed by integration these three kinds of algorithm.In this paper,the iterative fuzzy sliding mode control system and traditional sliding mode variable structure control systems are simulated by MATLAB/Simulink software for 6/4 pole switch reluctance motor respectively,and main modules of the controller is introduced.Through the comparison and analysis of the iterative fuzzy sliding mode control system and the traditional sliding mode variable structure control system,it is proved that the iterative fuzzy sliding mode control can effectively optimize the switched reluctance motor control system.At the same time,it has a positive effect in restraining the chattering,improving the stability of the system,and shortening the response time of the system.So that the theoretical application of theswitched reluctance motor has taken a new step.