【摘要】 直接转矩控制是一种高性能的交流传动控制系统,无速度传感器控制的研究代表了直接转矩控制系统的一个发展方向。在空间矢量模型基础上,介绍一种新的无速度传感器永磁同步电动机的直接转矩控制,它能降低稳态时转矩、磁链和速度的波动。在全速范围无速度传感器应用中,能产生更好的稳态性能的同时保留了DTC的暂态优点。仿真结果显示,该方法有着比传统的DTC更好的性能。更多还原

【Abstract】 Direct torque controlling is an a.c.driving controlling system.The research on sensorless speed controlling can be a representative for the trend of direct torque controlling system.Based on the space vector model,this paper introduces the direct torque controlling for a new sensorless speed permanent magnet synchronous motor,which can reduce the torque,magnetic linkage,and fluctuation of speed at stationary state.In the application of the sensorless speed controlling at full speed,it can operate more stably,and keep the advantage of DTC at transient state.The simulation result shows that this method has better performance than the traditional DTC.更多还原