WIT Press

Analytical Investigations Of Asynchronous Linear Motor With Conventional Rail As Secondary

Price

Free (open access)

Paper DOI

10.2495/CR000611

Volume

50

Pages

8

Published

2000

Size

595 kb

Author(s)

A. Binder, T. Werle, M. Hofmann, O. Bruno & P. Lupo

Abstract

Analytical investigations of asynchronous linear motor with conventional rail as secondary A. Binder*, T. Werle\ M. Hofmann', O. Bruno* & P. Lupo^ * Institute for Electrical Energy Conversion, Darmstadt University of Technology, Germany. * Department of Electrical Systems and Automation, University of Pisa, Italy. Abstract A single-sided linear induction machine (LIM) can be obtained by mounting a linearly distributed winding (primary part) on a railway bogie and using the conventional rail as induced part. Such a drive may offer the advantage of traction and electric braking forces independently of the contact wheel-rail. In the adopted two-dimensional model, the so-called end-effects and the magnetic saturation of the iron are neglected. Through the analytical solution of Maxwell's equations, the tangential and vertical forces between primary and rail, the power, the efficiency and the power factor have been calculated in function of current and of slip. The investiga

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