SVPWM为改进的对传统的直接转矩控制的matlab仿真，以异步电动机为控制对象，磁链、转矩双闭环，采用圆形磁链为目标，得到较好的仿真结果。-SVPWM for the improvement of the traditional direct torque control matlab simulation to asynchronous motor as the control object, flux linkage, torque double closed loop, the use