Two-Phase Linear Hybrid Reluctance Actuator with Low Detent Force

Jordi Garcia-Amorós, Marc Marín-Genescà, Pere Andrada and Eusebi Martínez-Piera
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Jordi Garcia-Amorós: Electrical and Electronic Engineering Departament, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain
Marc Marín-Genescà: Mechanical Engineering Department, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain
Pere Andrada: GAECE, Electric Engineering Department, Universitat Politècnica de Catalunya, BARCELONATECH, EPSEVG Av. Victor Balaguer 1, 08800 Vilanova i la Geltrú, Spain
Eusebi Martínez-Piera: GAECE, Electric Engineering Department, Universitat Politècnica de Catalunya, BARCELONATECH, EPSEVG Av. Victor Balaguer 1, 08800 Vilanova i la Geltrú, Spain

Energies, 2020, vol. 13, issue 19, 1-16

Abstract: In this paper, a novel two-phase linear hybrid reluctance actuator with the double-sided segmented stator, made of laminated U cores, and an interior mover with permanent magnets is proposed. The permanent magnets are disposed of in a way that increases the thrust force of a double-sided linear switched reluctance actuator of the same size. To achieve this objective, each phase of the actuator is powered by a single H-bridge inverter. To reduce the detent force, the upper and the lower stator were shifted. Finite element analysis was used to demonstrate that the proposed actuator has a high force density with low detent force. In addition, a comparative study between the proposed linear hybrid reluctance actuator, linear switched reluctance, and linear permanent magnet actuators of the same size was performed. Finally, experimental tests carried out in a prototype confirmed the goals of the proposed actuator.

Keywords: linear electric actuators; linear switched reluctance actuators; permanent magnets; linear hybrid reluctance actuators; machine design; finite element analysis; detent force reduction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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