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Fault tolerant multiphase electrical drives: the impact of design*

Published online by Cambridge University Press:  30 April 2008

E. Semail ,
X. Kestelyn  and
F. Locment
E. Semail
Affiliation:
L2EP ENSAM, 8 boulevard Louis XIV, 59046 Lille, France
X. Kestelyn*
Affiliation:
L2EP ENSAM, 8 boulevard Louis XIV, 59046 Lille, France
F. Locment
Affiliation:
L2EP ENSAM, 8 boulevard Louis XIV, 59046 Lille, France
*
[email protected]

Abstract

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This paper deals with fault tolerant multiphase electrical drives. The quality of the torque of a vector-controlled Permanent Magnet (PM) Synchronous Machine supplied by a multi-leg Voltage Source Inverter (VSI) is examined in normal operation and when one or two phases are open-circuited. It is then deduced that a seven-phase machine is a good compromise allowing high torque-to-volume density and easy control with smooth torque in fault operation. Experimental results confirm the predicted characteristics.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 43 , Issue 2: Reliability in Electromagnetic Systems (IET) , August 2008 , pp. 159 - 163
Copyright
© EDP Sciences, 2008

Footnotes

*

This article has been submitted as part of “IET –Colloquium on Reliability in Electromagnetic Systems”, 24 and 25 May 2007, Paris

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