双三相永磁同步电机控制算法仿真分析

Simulation analysis of control algorithm for dual three-phase permanent magnet synchronous motor

鉴于双三相永磁同步电机在自然坐标系下电磁耦合性强,控制模型复杂;利用空间矢量解耦理论和双dq变换理论,探究了该类电机的矢量控制算法,建立了该电机的数学模型。理论分析了这两种矢量控制算法的联系与差异。在仿真平台上,搭建了类该电机的控制模型,实现了这两种矢量控制算法的恒转速控制。通过仿真结果的分析,比较了这两种矢量控制算法在控制性能方面差异性。结果表明:在理论上,空间矢量解耦控制与双dq变换控制具有高度一致性;与双dq变换控制算法相比,空间矢量解耦控制算法能更好地实现能量解耦控制。

Since dual three-phase permanent magnet synchronous motor(DTP-PMSM)has strong electromagnetic coupling in natural coordinate system with complex control model,a vector control algorithm of the DTP-PMSM was explored and a model of the DTP-PMSM was established based both on a space vector decoupling theory and on a double-dq transform theory to analyze the relationship and the difference of the two algorithms.A control model was built on a simulation platform of the motor with realizing a constant speed control for the two vector control algorithms.The differences of control performance between the two vector-control-algorithms were compared through analyzing simulate results.The results show that the spacevector decoupling-control and the dual-dq transform control are highly consistent in theory.The space-vector decoupling control algorithm can achieve a better energy decoupling-control relative to the dual-dq transform control algorithm.