混合式永磁记忆电机磁场建模与分析

Modeling and Analyzing for Magnetic Field of Hybrid Permanent Magnet Memory Motor

本文介绍了混合式永磁记忆电机的结构及原理,基于有限元仿真软件Ansys Maxwell搭建混合式永磁记忆电机的有限元仿真模型,对充磁脉冲及退磁脉冲作用下电机内的磁场分布进行仿真分析,阐明混合式永磁记忆电机工作原理。并将混合式永磁记忆电机与普通永磁电机进行对比,阐明混合式永磁记忆电机具有足够的转矩输出能力,同时具有较宽的运行转速范围。此外,研究了混合式永磁记忆电机中AlNiCo宽度及厚度对可变磁通永磁记忆电机性能的影响。

This paper introduces the structure and principle of the hybrid permanent magnet(PM)memory motor.Based on the finite element(FE)simulation software Ansys Maxwell,the FE simulation model of the hybrid PM memory motor is built to simulate the magnetic field distribution in the motor under the magnetization and demagnetization current pulses.The working principle of hybrid PM memory motor is clarified.The hybrid PM memory motor is compared with the common PM motor to clarify that the hybrid PM memory motor has sufficient torque output capability and wide operating speed range.In addition,the influence of width and thickness of AlNiCo in the hybrid PM memory motor on the performance of the variable flux PM memory motor(VFMM)is studied.