https://doi.org/10.1051/epjap:2008057
Fault tolerant multiphase electrical drives: the impact of design*
L2EP ENSAM, 8 boulevard Louis XIV, 59046 Lille, France
Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
28
June
2007
Accepted:
22
February
2008
Published online:
30
April
2008
Abstract
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.
PACS: 84.50.+d – Electric motors / 07.10.Pz – Instruments for strain, force, and torque
This article has been submitted as part of “IET – Colloquium on Reliability in Electromagnetic Systems”, 24 and 25 May 2007, Paris
© EDP Sciences, 2008
