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 of circular flux as the goal, get better simulation results.