摘要
针对传统的异步电动机直接转矩控制方法存在的低速转矩脉动问题,将定子电阻观测器与转矩预测控制相结合,构成改进的异步电动机直接转矩控制系统,搭建了改进异步电动机直接转矩控制系统的Simulink仿真模型,系统仿真结果表明:改进的异步电动机直接转矩控制系统能够有效降低系统低速运行时的转矩脉动,提高系统低速运行的鲁棒性。
The improved induction motor direct torque control system was formed by the combine of the stator resistance observer and the torque predictive control in the article,based on the low-speed torque ripple problem existing on the traditional method of induction motor direct torque control.Simulink simulation model of the improved induction motor direct torque control system was built and showed the simulation results that the improved direct torque control system can effectively reduce torque ripple and improve the robustness of the system when the system running at low speed.
出处
《微电机》
北大核心
2011年第2期61-64,共4页
Micromotors
基金
安徽省教育厅2010年自然科学基金项目(KJ2010B134)
池州学院2009年度校级科研自然重点项目(XK0903)
关键词
异步电动机
直接转矩控制
定子电阻观测
转矩预测控制
转矩脉动
induction motor
direct torque control
stator resistance observation
torque predictive control
torque ripple
