DocumentCode :
3737191
Title :
Dual three-phase operation of single neutral symmetrical six-phase machine for improved performance
Author :
Hang Seng Che;Wooi Ping Hew
Author_Institution :
UMPEDAC, University of Malaya, Kuala Lumpur, Malaysia
fYear :
2015
Firstpage :
1176
Lastpage :
1181
Abstract :
Among multiphase machines of different phase numbers, six-phase machine is one of the most popular and widely studied multiphase machine. By displacing the two three-phase windings with an angle of 30 degrees, 60 degrees or 0 degree, the machine can be configured as an asymmetrical six-phase, symmetrical six-phase or dual three-phase machine respectively. At the same time, the stator windings can be configured with either two or single neutral point. Till date, most discussions on six-phase machines focus mainly on two neutrals configuration, due to the simpler control requirements and better dc-bus utilization. Nevertheless, single neutral connection should be given due attention, considering the fact that this structure offers better fault tolerance. In this paper, the performance of symmetrical six-phase with single neutral point is investigated. It is shown that by altering the winding terminals´ connections, a symmetrical six-phase machine can operate as a dual three-phase machine. By doing so, zero-sequence voltage injection becomes possible, hence giving improved performance.
Keywords :
"Windings","Pulse width modulation","Stator windings","Mathematical model","Torque","Inverters"
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, IECON 2015 - 41st Annual Conference of the IEEE
Type :
conf
DOI :
10.1109/IECON.2015.7392259
Filename :
7392259
Link To Document :
بازگشت