Title: An analytic calculation method of the magnet field in Tubular Permanent Magnet Linear Synchronous Motor (TPMLSM)

Authors: Jinghong Zhao; Junhong Zhang; Wei Gao

Addresses: Department of Electrical Engineering, Electricity and Information Engineering School, Naval University of Engineering, Wuhan, Hubei, 430033, China. ' Department of Electrical Engineering, Electricity and Information Engineering School, Naval University of Engineering, Wuhan, Hubei, 430033, China. ' Department of Electrical Engineering, Electricity and Information Engineering School, Naval University of Engineering, Wuhan, Hubei, 430033, China

Abstract: Analytic magnetic field calculation method is introduced which is based on scalar magnetic potential with Schwarz-Christoffel Transform of axial magnetised TPMLSM. The results of magnetic field distribution are obtained in slotless and slotted motor. Finite element method is used to testify the magnetic field distribution, there is almost no difference in the error results of in narrow airspace slotless and slotted motor, but the value is equal to the middle winding flux density in wider airspace slotless motor. Finally, the results of the slotless prototype magnetic field distribution with zero load are given; it is verified that the analysis and design prototype are correct.

Keywords: TPMLSM; field analysis; scalar quantity magnets; Schwartz-Christopher transform; finite element method; FEM; magnetic field calculation; permanent magnet linear synchronous motors.

DOI: 10.1504/IJCAT.2011.045822

International Journal of Computer Applications in Technology, 2011 Vol.42 No.4, pp.306 - 313

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 09 Mar 2012 *

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