摘要
分析了转子时间常数变化对系统控制性能的影响;提出一种新颖的基于自适应磁链观测器的辨识方法。与传统的极点配置方法设计反馈增益矩阵不同的是,它采用鲁棒控制理论和Lyapunov稳定性理论,通过求解线性矩阵不等式,求出观测器的反馈增益矩阵。仿真结果表明,该方法能准确辨识感应电机的转子时间常数,具有较快收敛性和较高的无差度及鲁棒性强的特点。
Vector control system was dependent on parameters of motor,and rotor time constant changed with temperature.This paper analyzed the influence on the performance of control system by rotor time constant variations,and presented a novel estimation method based on adaptive flux observer.Differing with conventional observer based on pole placement,it adopted robust control theory and lyapunov stability theory,by solving a linear matrix inequality(LMI)to obtain the gain of the observer.The simulation results dem...
出处
《微电机》
北大核心
2009年第1期92-94,共3页
Micromotors
