摘要
在分析交流异步电动机数学模型的基础上,利用Matlab7.0/Simulink软件构建了一个异步电动机直接转矩控制系统的新型模型.对仿真模型中的定子磁链观测器模块进行了描述,并简要说明了空间电压矢量对磁链和转矩的作用及影响.通过对异步电动机进行仿真实验,得到电流、转速、转矩以及磁链的仿真波形.
A Novel Modeling of Induction Motor Direct Torque Control System is constructed with Matlab7. 0/Simulink based on the mathematic module of induction motor. The module of stator flux observation is illustrated. And the paper .explains how the space voltage vector affects the motor stator flux and electromagnetic torque. Finally, an experiment with definite parameters is emulated and the waveform of stator current, rotor speed and electromagnetic torque are given.
基金
安徽省教育厅科研基金资助项目(2003kj036)
