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Modeling and Analysis of a Tubular Oscillating Permanent Magnet Actuator

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3 Author(s)
Chen, X. ; Dept. of Electron. & Electr. Eng, Univ. of Sheffield, Sheffield ; Zhu, Z.Q. ; Howe, D.

An improved analytical model is developed to predict the electromagnetic performance of a single-phase tubular oscillating permanent magnet actuator. The analytically predicted thrust force, flux-linkage and back-EMF coefficient of an actuator equipped with a quasi-Halbach magnetized mover are compared with results deduced from finite element analyses and measurements. In addition, the influence of mover back-iron is investigated, the loss of the prototype actuator is estimated, and the optimal design parameters, viz. the optimum ratio of the axial lengths of the radially magnetized and axially magnetized magnets and the optimum mover diameter to stator diameter split ratio, are identified.

Published in:

Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE

Date of Conference:

5-9 Oct. 2008