基于全阶状态观测器转速估算方法的研究

摘要

It is important for induction motor speed sensor-less control technology to accurately estimate the speed.Based on the analysis of traditional model reference adaptive (MRAS) speed estimation method,the other method was researched,full order state observer speed estimation.Compared with the traditional MRAS method,this method was less affected by PI parameters,and had strong robustness toward motor parameters.Simulation and experiment proved the effectiveness and superiority of the method.%感应电机无速度传感器控制技术的关键在于准确地估算转速.在分析传统模型参考自适应(MRAS)转速估算方法的基础上,对比研究了基于全阶状态观测器的转速估算方法.相比于传统的MRAS法,该方法受PI调节参数影响较小,且对电机参数具有较强的鲁棒性.仿真和试验结果表明了该方法的有效性及优越性.