感应电动机的观察者标识符

Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204) Pub Date : 2001-09-05 DOI:10.1109/CCA.2001.973953

J. Correa, A. Poznyak, A. Zaremba

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引用次数: 0

摘要

阐述了一种异步电动机转速估计方法。首先，将转子转速视为零动力学的状态变量。采用非线性MIMO观测技术估计相应的扩展状态。结果表明，除了在扩展系统不可观测的一些奇异点外，该方案可以估计机器变量和速度;然后有必要为观测器实现一个切换结构，使在奇异点附近只有机器变量被求值。Simulink仿真显示了转子磁链的良好性能和转速估计。

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Observer-identifier for an induction motor

A method for speed estimation of an induction motor is elaborated. First, the rotor speed is considered as a state variable of null dynamics. A nonlinear MIMO observation technique is applied for estimating the corresponding extended state. As a result, the scheme estimates machine variables and speed except in some singular points where the extended system is not observable; then it is necessary to implement a switching structure for the observer, letting, in the vicinity of the singular points, only the machine variables be evaluated. The Simulink simulations included demonstrate nice performance properties of the rotor flux and the speed estimates.

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Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)

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