| 一种改进型异步电机直接转矩控制系统研究 |
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| 引用本文： | 郭春平,王奔,李泰,黄北军.一种改进型异步电机直接转矩控制系统研究[J].电气传动,2008,38(7). |
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| 作者姓名： | 郭春平 王奔 李泰 黄北军 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 摘 要： | 在传统无速度传感器异步电机直接转矩控制系统基础之上进行了改进研究,将变结构控制和无速度传感器技术引入进来,设计电机定子磁链控制器和电磁转矩控制器,并应用Lyapunov第二方法推导出转子转速和定子电阻自适应辨识律.通过Matlab/Simulink的仿真,验证了改进后的系统比传统系统具有更好的动静态性能,并具有良好的鲁棒性.
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| 关 键 词： | 直接转矩控制 变结构控制 Lyapunov第二方法 无速度传感器 |
Research on an Improved Direct Torque Control System for Asynchronous Motor |
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| GUO Chun-ping,WANG Ben,LI Tai,HUANG Bei-jun.Research on an Improved Direct Torque Control System for Asynchronous Motor[J].Electric Drive,2008,38(7). |
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| Authors: | GUO Chun-ping WANG Ben LI Tai HUANG Bei-jun |
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| Abstract: | An improved speed sensorless direct torque control system of induction motor based on the classic system was presented,and variable structure control and speed sensorless technology was applied to design stator flux controller and electromagnetic torque controller of asynchronous induction.By using the second method of Lyapunov,self adapting identification restrains of rotor speed and stator resistance were proposed.Simulation results with Matlab/Simulink proved that the proposed scheme has better dynamic and steady performance than the classical system and excellent robustness. |
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| Keywords: | direct torque control(DTC) variable structure control the second method of Lyapunov speed sensorless |
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