VC与DTC在PMSM转矩控制中的比较研究

矢量控制（VC）和直接转矩控制（DTC）作为交流电动机的两种高性能控制策略，在实际中得到了广泛的应用。在对两种控制策略进行理论分析的基础上找到了它们的共同理论基础，然后将两者分别应用于永磁同步电机（PMSM）的转矩控制当中。通过Simulink建模与仿真，从对转矩阶跃信号的响应、转矩脉动、定子磁链的波动等方面对两种控制策略的控制性能进行了比较，表明了两者各自的优缺点。

Comparison Research of VC and DTC in Torque Control of PMSM

Vector Control and Direct Torque Control are widely used as two advanced control strategies for AC motors. Based on the theoretical analysis of both strategies, their common basis is searched out. Then both strategies are respectivelly applied in a permanent magnet synchronous motor for the control of torque, their models and simulations are set up in the Simulink. Such performances just as the response for step torque, the torque rippling and the flux rippling are compared. The result of the simulation indicates their advantages and disadvantages.