基于PSIM永磁同步电机矢量控制系统的仿真建模

Modeling and Simulation of PMSM Vector Control System Based on PSIM

在分析永磁同步电机(PMSM)数学模型的基础上,基于PSIM6.0软件建立了PMSM矢量控制系统仿真模型。系统采用双闭环控制:速度环采用PI控制,电流环采用矢量控制。仿真结果证明了该方法的有效性,同时该模型也适用于验证其他控制算法的合理性,为实际电机控制系统的设计和调试提供了新的思路。

In this paper, based on the mathematical model of the permanent-magnet synchronousmotor (PMSM), a PMSM vector control system model has been established in PSIM6.0.In PSIM/SIMCAD, the isolated functional blocks, such as Vector controller block, Phase voltage block, Coordinate transform block, SPWM block, Speed controller block, etc., have been modeled. By the organic combination of these blocks, the control system model of PMSM can be established easily. In the double loop of control system, a PI controller is adopted in the speed loop and a vector controller is adopted in the current loop. The validity has been testified by the simulation results and other control strategies can be applied to the system to testify their rationality. This novel method offers a new thoughtway for designing and debugging actual motors.