Theoretical Comparison between (XI & C) Cores of Homopolar linear Synchronous Motor.

Document Type : Research Studies

Author

electrical engineering Department., Faculty of engineering., EL-Mansoura University., EI-Mansoura, Egypt.

Abstract

This paper presents the comparison between two different  geometries for the core of homo polar linear synchronous motor HLSM. The theoretical analysis estimated  the airgap  flux density , the attraction and traction forces This  analysis is based on a magnetic field study using 3-dimensional finite difference  method FDM of scalar magnetic potential. The average results of zero and infinite  permeability boundaries is considered. The flux per pole, under a.c. limbs either in"C"  or in " XI" core is taken for obtaining the majority of normal force. Results reveal  that the " XI" core shape was the optimum form because it provides higher both  of traction and attraction forces than "C" core . But, the extra iron required and attraction force s than "C" core. But, the extra Iron required  and the cost of rail track poles were the weak points for unchoosing this form in practical application An experimental investigation is carried out on laboratory Static  prototype motor LSPM of "C" core HLSM to verify the theoretical results. It is shown that the experimental and computed results are in  good agreement. 

Main Subjects

MEJ- Mansoura Engineering Journal
Volume 21, Issue 4
VOL 21 has two issues issue 2 consist of two parts from(September to December)
December 1996
Pages 25-36

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