【摘要】 针对交流感应电动机转子磁链观测问题,提出一种新的方法,基于变增益控制理论设计感应电机转子磁链观测器。首先把感应电动机模型作为LPV线性变参数系统,将感应电动机的磁通观测器看作线性变参数系统的一个控制器,而把转速与转子电阻作为系统的变参数,然后利用变增益控制理论,通过解一组线性矩阵不等式,设计满足H∞鲁棒稳定性能和动态特性磁链观测器,跟踪实际的磁链。仿真验证了此观测器的有效性和先进性。更多还原

【Abstract】 A new approach for designing flux observer of induction motor is proposed based on gain-scheduled control theory.The induction motor is regarded as a LPV system controlled by the flux obsrever.The speed and the rotor resistance are considered as variable parameters.A flux obsrever with satisfactory H_∞ performance and dynamic characteristics is designed using LMI approach.Simulation result on Simulink demonstates the feasibility and advantages of the observer.更多还原