摘  要：介绍了对矿用异步电动机的低速性能分析的必要性，并阐述了异步电动机的数学模型、直接转矩控制系统的基本组成和工作原理。在Matlab /Simulink 平台上搭建了异步电动机直接转矩控制调速系统的仿真模型，并对仿真模型中的主要模块进行了描述。仿真结果验证了该模型的正确性和整个系统的快速动态响应特性。
关键词：直接转矩控制；异步电动机；低速；Matlab/Simulink

Abstract: This paper introduced the performance analysis of mining of low-speed asynchronous motor，and described the basic composition and principal of mathematical model and direct torque control system of asynchronous motor.Built a simulation model of the direct torque control system,and described the main module of thia simulation model on Matlab/Simulink.Simulation results verify the correctness of the model and the rapid dynamic response features of this system.
Key words: direct torque control；asynchronous motor;low speed；Matlab/Simulink