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A five-phase two-machine vector controlled induction motor drive supplied from a single inverter
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| Author(s) |
E. Levi; M. Jones; S.N. Vukosavic; H.T. Toliyat |
| Abstract |
Application of power electronics in electric drives enables utilisation of AC machines with a phase
number higher than three. It is shown in the paper that an increase of the stator phase number to five
enables completely independent vector control of two five-phase machines that are supplied from a
single current-controlled voltage source inverter. In order to achieve such an independent control it is
necessary to connect five-phase stator windings of the two machines in series and perform an
appropriate phase sequence transposition. The concept is equally applicable to any five-phase AC
machine type and its major advantage, compared with an equivalent two-motor three-phase drive, is the
saving of one inverter leg. Instead of six inverter legs, only five are required. Detailed verification of the
novel five-phase two-motor drive configuration is provided by simulating the operation in the torque
mode and speed mode, using indirect rotor flux oriented control principles. The concept can be extended
to higher number of phases in a simple manner. Its main drawbacks are addressed as well. |
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| Filename: | EPE2003-PP0001 - E. Levi |
| Filesize: | 343 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-13 by Unknown |
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