五相永磁同步电动机控制方法的研究

Study on Controlling Means for Five-phase PMSM

永磁同步电动机发展迅速,已在家电、工业和国防上得到了广泛应用。多相永磁同步电动机具有大转矩、低转矩脉冲、高功率密度等优势,近年来受到了广泛重视和深入研究。分析并建立了五相永磁同步电动机的数学模型,对比了四类矢量控制算法和直接转矩控制算法的区别,分析了各种方法的利弊,得出可将弱磁控制与Id=0矢量控制结合起来,用于提升控制系统的性能。

Permanent magnet synchronous motor is developed rapidly and is widely used in home appliances and in industrial and defense fields. In recent years, multi-phase permanent magnet synchronous motor is taken into widespread attention and in-depth study due to its advantages such as large torque, low torque pulse and high power density. By analyzing and building a mathematical model of the five-phase permanent magnet synchronous motor, the differences between four types of vector control algorithms and direct torque control algorithm were compared. While the advantages and disadvantages of each method were analyzed. The finding indicates that when Weakening control is incorporated with Id = 0 vector control, the performance of the control system could be improved.