无速度传感器直接转矩控制系统的MATLAB仿真  

MATLAB simulation of speed sensorless direct torque control system

作　　者：张敏燕[1] 陈治川[1] 

机构地区：[1]上海大学,上海200072

出　　处：《电气传动自动化》2008年第2期16-19,共4页Electric Drive Automation

摘　　要：采用定子磁链u-n模型计算定子磁链,并在此基础上将模型参考自适应应用于直接转矩控制系统中,实现了系统的无速度传感器运行。针对3kW异步电动机,采用MATLAB/SIMULINK软件进行了仿真。仿真结果表明,该系统对电机定子磁链的观测精度高,速度运算较准确,在全速范围内能保持较高的性能。In this DTC system simulation model, the estimation of the stator flux is based on u-n model. The model reference adaptive method is proposed to estimate the speed and realize a simple and high performance speed sensorless system. This approach has been implemented on MATLAB/SIMULINK software in 3kW drive. The simulation results show that the method gives satisfying estimation of stator flux and rotor speed in the whole speed range.

关 键 词：异步电动机 直接转矩控制 无速度传感器 MRAS 

分 类 号：TM343[电气工程—电机]