Design and realization of a PM linear synchronous motor with a very high thrust/normal force ratio

Author

Profumo, F. ; Tenconi, A. ; Gianolio, G.

Author_Institution

Dipartimento di Ingegneria Elettrica Ind., Politecnico di Torino, Italy

Volume

3

fYear

2001

Firstpage

1984

Abstract

An important drawback in PM linear synchronous motor applications is the high normal force (compared to the thrust developed by the motor itself) due to the stator-cursor magnetic attraction. A new linear motor with a very high thrust/normal force ratio has been designed and a prototype has been constructed. The motor is a PM linear synchronous motor with the PMs mounted on an ironless cursor. The motor performance have been evaluated in terms of generated forces (thrust and normal force) considering the values obtained by simulations and laboratory tests. Laboratory generated forces measurements have been performed by an "ad hoc" instrumentation described in the paper itself.

Keywords

finite element analysis; force measurement; linear synchronous motors; machine testing; machine theory; permanent magnet motors; stators; PM linear synchronous motor; forces measurements; ironless cursor; laboratory tests; motor performance; simulations; stator-cursor magnetic attraction; thrust/normal force ratio; Brushless motors; DC motors; Induction motors; Inductors; Laboratories; Magnetic levitation; Permanent magnet motors; Stators; Synchronous motors; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE

Conference_Location

Chicago, IL, USA

ISSN

0197-2618

Print_ISBN

0-7803-7114-3

Type

conf

DOI

10.1109/IAS.2001.955900

Filename

955900