本文介绍了直接转矩控制系统和控制原理，并对系统建立状态空间数学模型。采用了磁链和转矩的优化设计思想。借助于Matlab给出了DTC的仿真波形。仿真和实验表明:DTC控制具有更好的稳定性、较强的鲁棒性和抑制扰动的能力。英文摘 要 ：This paper has introduced direct torque control systematic and control theory and establishes state space mathematics model for system. It has been adopted flux and torque control systematic optimization design thought. Have the help of MATLAB have given DTC control simulation waveform. Simulate and experiment show: Based on DTC theoretical control have better stability, comparatively strong robust and restrain the ability of disturbing.