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Issue title: Special Issue on the 18th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering
Guest editors: Sławomir Wiak, Paolo Di Barba and Krzysztof Komeza
Article type: Research Article
Authors: Bauw, Grégory* | Cassoret, Bertrand | Romary, Raphaël | Ninet, Olivier
Affiliations: Laboratoire Systèmes Electrotechniques et Environnement (LSEE), Artois University, F-62400 Béthune, France
Correspondence: [*] Corresponding author: Grégory Bauw, Laboratoire Systèmes Electrotechniques et Environnement (LSEE), Artois University, EA 4025, F-62400 Béthune, France. E-mail: [email protected].
Abstract: The flux density harmonics in the air-gap of AC machines have many origins. They generate electromotive forces and current harmonics, Maxwell forces, noise and vibrations. The principle of the presented method is to use a new auxiliary stator winding, connected to capacitors. The induced current harmonics generate flux density components in opposition to the initial ones, creating a damping effect. The study presented in this paper concerns an induction machine and particularly focus on flux density harmonics generated by slotting effects. The method allows to reduce the sound pressure level main lines of about 15 dBA. The vibrations are reduced too. Moreover the stator current harmonics are attenuated, and the power factor is significantly improved.
Keywords: Induction machine, magnetic noise, harmonics, auxiliary windings, capacitors, damper, sinusoidal
DOI: 10.3233/JAE-182296
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 57, no. S1, pp. 13-21, 2018
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