Research On Structure Optimization And Control Design Of Deflector Double Stator Switched Reluctance Motor

In recent years,the development and use of new energy technologies has become increasingly popular in various countries due to environmental pollution and the energy crisis.The switched reluctance motor has received attention from the international community and relevant research institutes due to its simple structure,high stability,high efficiency and low cost.In order to improve the flexibility and efficiency of the motor,a deflectable switched reluctance motor with a double stator structure is proposed,which consists of an outer stator,an inner stator,a concentrated winding,a rotor and a magnetic separation plate.The design of the spherical structure between the stator and rotor enables the rotor to rotate at a certain angle of deflection,so that the motor can be used in a variety of special environments.In order to make the deflectable switched reluctance motor operate more stably and efficiently,this paper investigates the output torque pulsation of the deflectable switched reluctance motor,both in terms of structure and control strategy.The research is summarised as follows:Firstly,this paper introduces the current research status of switched reluctance motors of general structure in China and abroad,then compare and contrast its structure with that of the deflectable switched reluctance motor studied in this paper.Determine the basic dimensions of the model motor structure.The 3D model of the motor is created in the Solid Work software environment and imported into the Ansoft software.The magnetic field distribution of the motor is then simulated and analysed.After a theoretical analysis of the flux effect on the convex pole edge of the deflectable switched reluctance motor,the method of adding a single pole shoe to one side of the stator is proposed based on finite element analysis and electromagnetic calculations,and the length and thickness of the pole shoe are optimised and compared by finite element analysis to select the solution with higher average torque and more reduced torque pulsation.Then,the mathematical model of deflectable switched reluctance motor and the electromagnetic equation are used to build the outer stator-rotor control model in MATLAB environment,and the given speed signal is regulated and transformed into the torque control signal by relying on the good robustness and strong fault tolerance of fuzzy PI control.The voltage signal is then obtained by using the strong self-learning and adaptive regulation capability of the flexible neural network control module.Finally,the power converter distributes the switching signals to complete the control of the deflectable switched reluctance motor.Finally,the experimental test platform of the motor is built.The proposed control strategy is verified to operate stably on the deflectable switched reluctance motor with good dynamic performance and anti-interference capability,and the feasibility of the control strategy is verified.