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基于变增益控制理论的感应电机转子磁链观测 被引量:3

Flux Observer of Induction Motor Based on Gain-Scheduled Control Theory
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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。 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.
出处 《电力系统及其自动化学报》 CSCD 北大核心 2006年第1期71-73,共3页 Proceedings of the CSU-EPSA
关键词 变增益控制理论 转子磁链观测 线性变参数系统 线性不等式 gain-scheduled control theory rotor flux observer linear parameter-varying (LPV) system linear matrix inequality(LMI)
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