自起动稀土永磁单相同步电动机起动性能分析

Starting Performance Analysis of Self-Start Rare Earth Single-Phase Permanent-Magnet Synchronous Motor

运用绕组变换、坐标变换和状态变量法,建立单相永磁同步电动机在d-q-o坐标系中的数学模型,并对电机起动过程进行计算机仿真,分析不同参数对起动过程的影响,为优化单相永磁电机的电磁设计和改善调速系统的动态性能提供了理论依据。

In this paper, the mathematical model of the single-phase permanent-magnet synchronous motor （SPPM） on the fixed rotor reference frame was set up using winding transformation ,d.q transformation and state variable method. The starting process was simulated and analyzed by numerical solution of the dynamic equations, and a discussion was provided to show the influence of various parameters on the motor starting performances. The analysis provides a theoretical basis for the optimal design of the SPPM and improves the dynamic performance of the variable speed system.