Vibration reduction method of switched reluctance motors with amorphous alloy cores based on inverse‑magnetostriction effect

Tong Ben; Jin Wang; Long Chen; Libing Jing; Rongge Yan

Vibration reduction method of switched reluctance motors with amorphous alloy cores based on inverse‑magnetostriction effect

Vol. 22, No. 11, pp. 1908-1916, Nov. 2022

10.1007/s43236-022-00499-7

Vibration reduction method

Inverse-magnetostriction effect

Magnetostriction effect

Switched reluctance motor

Amorphous alloy

Abstract

The amorphous alloy used in a switched reluctance motor core can greatly improve the efficiency of the motor. However, its large magnetostrictive coeffi cient and strong stress sensitivity (i.e., inverse-magnetostriction eff ect) increase the core vibration and limit the precise control capability of the electrical signals. A vibration reduction method based on the inversemagnetostriction eff ect is proposed to control the electromagnetic vibration of a switched reluctance motor with amorphous alloy cores (SRMA). First, a nonlinear magnetostriction and inverse-magnetostriction eff ect model (NMIE model) of an amorphous alloy and the compressive stress applied structure for the stator teeth are proposed. Then, considering the influence of static compressive stress and dynamic electromagnetic stress on the magnetic properties of the core material, a two-way dynamic electromagnetic force coupling model of the SRMA is constructed and solved. Finally, the vibration characteristics of the SRMA core are calculated. The obtained results show that the radial electromagnetic stress of the improved structure is reduced by 33.6%, which verifi es the feasibility of the proposed vibration reduction method.

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Cite this article

[IEEE Style]

T. Ben, J. Wang, L. Chen, L. Jing, R. Yan, "Vibration reduction method of switched reluctance motors with amorphous alloy cores based on inverse‑magnetostriction effect," Journal of Power Electronics, vol. 22, no. 11, pp. 1908-1916, 2022. DOI: 10.1007/s43236-022-00499-7.

[ACM Style]

Tong Ben, Jin Wang, Long Chen, Libing Jing, and Rongge Yan. 2022. Vibration reduction method of switched reluctance motors with amorphous alloy cores based on inverse‑magnetostriction effect. Journal of Power Electronics, 22, 11, (2022), 1908-1916. DOI: 10.1007/s43236-022-00499-7.