【摘要】 介绍了同步电机直接转矩控制的研究现状,着重分析了同步电机的直接转矩控制与异步电 机的直接转矩控制的不同点,如零矢量的作用、转子的初始位置、直流偏置的影响、转速的观测等。利 用MATLAB软件中的SIMULINK对同步电机的直接转矩控制系统进行建模、仿真。仿真结果表明, 同步电机直接转矩控制系统性能很好。更多还原

【Abstract】 This paper introduces present situation of direct torque control of synchronous machines and analyses the differences between synchronous machine and asynchronous machine, such as the use of zero vector, the initial rotor position estimation, the effect of offset error, the estimation of rotor speed, etc. Finally, a simulation model of direct torque control is proposed. The model is based on the SIMULINK environment of the MATLAB software. The simulation results of direct torque contro system of interior permanent magnet motor indicate that the performances are very good.更多还原