异步电机无速度传感器矢量控制速度估算的改进

Improvement of Speed Estimation of No Speed Sensor Vector Control for Asynchronous Motors

根据异步电机矢量控制的基本原理,构建了一个无速度传感器的矢量控制系统。该系统采用改进型的转子磁链观测器实现转子磁链的观测,并通过速度自适应算法实现对转子速度的估算。最后在MATLAB/Simulink下构建了系统的仿真模型,仿真结果表明该系统的估算误差很小,能够满足实际应用的要求。

Abstract： The no speed sensor vector control system is established according the principle of vector control system for asynchronous motors. The rotor flux is observed by the improved rotor flux observer, and the speed of the rotor is estimated by the speed adaptive algorithm. In the end the simulation model of the system is established under the MATLAB / Simulink, The simulation results show that the estimation error of the system is very small, and this system is able to meet the requirements of practical applicaticn.