永磁同步电机机电耦合高精度数值仿真OA

With the continuously increasing demand for high-performance design and accurate modeling of permanent magnet synchronous motor(PMSM),the traditional finite element method(FEM)has gradually exposed issues of insufficient calculation accuracy and limited efficiency when dealing with complex geometric structures and nonlinear material properties.To address this issue,an edge-based smoothed finite element method(ES-FEM)is proposed and a coupled simulation platform of MATLAB/Simulink-ES-FEM is developed,achieving high-precision numerical simulation of the electromagnetic field and electromechanical coupling problems of permanent magnet synchronous motors.By systematically deriving the model and implementation method of ES-FEM in electromagnetic field calculation,and conducting a comparative analysis with traditional first-order FEM and second-order FEM in terms of accuracy and efficiency,the simulation results show that under the same mesh density,ES-FEM can provide higher calculation accuracy and faster convergence speed,and is particularly suitable for accurately modeling the nonlinear magnetic materials and mechanical-electromagnetic coupling systems.The present research provides an effective numerical tool for simulating and optimizing the permanent magnet synchronous motor,and demonstrates the application potential of ES-FEM in electromagnetic engineering.