基于场路耦合时步有限元的永磁同步电动机瞬态特性研究

Study on Transient Characteristic of Permanent Magnet Synchronous Motor Based on Field-circuit Coupled Time-stepping Finite Element Method

本文采用场路耦合时步有限元法对永磁电动机进行瞬态特性研究。采用边界周期性条件耦合电动机定、转子相对运动边界,并考虑定子绕组分布和磁极形状,结合电磁场分析方法和控制策略建立瞬态数学仿真模型,通过实验验证了仿真模型的有效性。

The paper studied on the transient characteristic of permanent magnet synchronous motor based on field-circuit coupled time-stepping finite element method. Adopted the periodical boundary condition to couple the related moving interface between stator and rotor of permanent magnet synchronous motor, and considered the real wind distribution and the pole geometry, so the transient mathematic analytical model was built combined the method of electromagnetic field with control algorithm, an application example was provied the validity of the field-circuit coupled time-stepping finite element method in PMSM transient characteristic simulation.