Axial-field synchronous machine with homopolar flux in the airgap for a flywheel accumulator

Author

Bernard, Nicolas ; Ahmed, Hamid Ben ; Multon, Bernard

Author_Institution

Lab. of Electricity, Signals & Robotics, Ecole Normale Superieure de Cachan, Bruz, France

Volume

2

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

1258

Abstract

A new axial-field synchronous machine designed for a flywheel accumulator is presented herein. The armature and field windings fixed in the airgap are made with double-face printed circuits. A specific armature layout provides a sine-distributed MMF and solves the problem of crossing the ends of the winding. A 2D semi-analytical model at the mean radius, using surface permeances, is then developed. Afterwards, inductances, torque and eddy current losses are calculated using this model and compared with experimental results.

Keywords

air gaps; eddy current losses; flywheels; inductance; machine theory; machine windings; synchronous machines; torque; 2D semi-analytical model; air gap; armature; axial-field synchronous machine; double-face printed circuits; double-face printed winding; eddy current losses; field windings; flywheel accumulator; homopolar flux; inductances; mean radius; sine-distributed MMF; surface permeance; torque; Coils; Conductors; Flywheels; Machine windings; Power generation; Printed circuits; Synchronous machines; Synchronous motors; Torque; Wind energy generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1042720

Filename

1042720