Rotor Flux Optimal Estimation for Induction Motor Control
| Authors: | Alonge Francesco, University of Palermo, Italy
D'Ippolito F., University of Palermo, Italy
Giardina G., University of Palermo, Italy
Raimondi F. M., University of Palermo, Italy
Scaffidi T., University of Palermo, Italy |
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| Topic: | 6.3 Power Plants and Power Systems |
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| Session: | Control of Induction Motors |
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| Keywords: | rotor flux observer, induction motors |
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Abstract
The aim of this paper is to analyze and design reduced order observers of the rotor flux of induction motors. The design requirements are: a) the convergence rate of the rotor flux estimation error; b) a low sensitivity to stator and rotor resistance variations; c) a low sensitivity to errors due to the implementation of the observers on microprocessor-based systems. It is shown that, in order to satisfy the requirements a)-c), it is sufficient to solve a constrained optimization problem according to a criterion in which these requirements appear explicitly. The implementation of the observer is discussed. The observer is tested by simulation and experiments.
