摘要
提出了一种基于模型参考自适应系统的异步电机无传感器直接转矩控制策略。首先构建全阶自适应观察器,并根据李亚普诺夫理论推导出转速的自适应收敛率,实现转子速度估计。通过MATLAB/Simulink仿真研究表明,该方案具有良好的稳态和动态性能。
A model reference adaptive system （MRAS） for a speed sensorless control scheme of asynchronous motor on the basis of direct torque control （DTC） was introduced, which constructed a full order adaptive observer to estimate the rotor speed on the basis of Lyapunov stability criterion. The steady state and dynamic performance were examined based on MATLAB/Simulink and the simulated results showed that the scheme was effective.
出处
《电机与控制应用》
北大核心
2007年第2期35-38,共4页
Electric machines & control application
关键词
无传感器控制
异步电机
直接转矩控制
模型参考自适应
sensorless control
asynchronous motor
direct torque control
model reference adaptive system
