Parameter identification and slip estimation of induction machine |
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Authors: | Maciej Orman Michal OrkiszCajetan T Pinto |
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Affiliation: | a ABB Corporate Research Center, ul. Starowislna 13A, 31-038 Krakow, Poland b ABB Machine Service, Taloja 410208, Maharashtra, India |
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Abstract: | This paper presents a newly developed algorithm for induction machine rotor speed estimation and parameter detection. The proposed algorithm is based on spectrum analysis of the stator current. The main idea is to find the best fit of motor parameters and rotor slip with the group of characteristic frequencies which are always present in the current spectrum. Rotor speed and parameters such as pole pairs or number of rotor slots are the results of the presented algorithm. Numerical calculations show that the method yields very accurate results and can be an important part of machine monitoring systems. |
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Keywords: | Machine monitoring Fault identification Slip estimation |
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