Axial force reduction of a homopolar machine

Abstract

Purpose

The purpose of this paper is to describe the optimization process of a homopolar machine. The work has been focused on a reduction of axial forces acting on the rotor.

Design/methodology/approach

A novel machine design has been proposed and a detailed FEM analysis has been performed.

Findings

The source of the axial force in the homopolar machine has been indicated and a new method of axial force reduction has been presented.

Originality/value

A detailed comparison shows that the applied changes lead to a significant axial force reduction and allow the usage of cheaper and less prone to axial forces bearings.

Citation

Wiak, S., Gerling, D. and Pyc, M. (2012), "Axial force reduction of a homopolar machine", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 31 No. 5, pp. 1513-1520. https://doi.org/10.1108/03321641211248264