Two-phase linear hybrid reluctance actuator with low detent force

Identifier:  imarina:9002808

Handle: https://hdl.handle.net/20.500.11797/imarina9002808

Authors:  Garcia-Amorós, J; Marín-Genescà, M; Andrada, P; Martínez-Piera, E

Abstract:
© 2020 by the authors 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.