Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/13622
Title: A novel exact analytical solution based on kloss equation towards accurate speed‐time characteristics modeling of induction machines during no‐load direct startups
Authors: Calasan, Martin
Alqarni M.
Rosić, Marko
Koljčević N.
ALamri B.
Abdel Aleem, Shady
Issue Date: 2021
Abstract: The acceleration time of induction machines (IMs) is essential for proper protection‐relay settings of the machine to prevent voltage sags in local power areas. In this paper, mathematical modeling of IMs’ speed‐time characteristics during no‐load direct startup has been presented. Un-like the approaches presented in the literature, the proposed approach includes the bearing losses, in which two expressions of the speed‐time characteristics of IMs during no‐load direct startup are derived. The first expression was derived based on the Kloss equation used for representing the torque, and the second expression was derived based on the torque expression determined from the Thevenin equivalent circuit of the machine. The derived expressions’ accuracy was validated using laboratory measurement and computer simulation approaches. The results obtained show a good agreement between the measured and simulated speed‐time characteristics of two IMs. Fi-nally, the proposed formulations can provide a simple analytical base to enable accurate IM mod-eling.
URI: https://scidar.kg.ac.rs/handle/123456789/13622
Type: article
DOI: 10.3390/app11115102
SCOPUS: 2-s2.0-85107876081
Appears in Collections:Faculty of Technical Sciences, Čačak

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