High power density design of 6s-16P permanent magnet flux switching machine with field excitation for hybrid electric vehicles
Over the past decade, many automotive companies have been commercializing HEVs. Most of them. employ IPMSM using rare-earth magnet as their main traction drives from viewpoints of high torque and power density and high efficiency over most of operating torque-speed ranges. However, since all permane...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6063/ http://eprints.uthm.edu.my/6063/1/HIGH_POWER_DENSITY_DESIGN_OF_6s%2D16P.pdf |
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| Summary: | Over the past decade, many automotive companies have
been commercializing HEVs. Most of them. employ IPMSM
using rare-earth magnet as their main traction drives from
viewpoints of high torque and power density and high
efficiency over most of operating torque-speed ranges.
However, since all permanent magnets are located on rotor
part, a design approach to ensure mechanical strength of the
rotor depends on rib thickness and number of bridges between
permanent magnets. The increase in the number of bridges
improves the mechanical strength, but reduces the maximum
torque of the machine due to an increase in leakage flux of
PM. To overcome this problem, 6s-16P permanent magnet flux switching machine with additional field excitation coil is .' presented. The proposed machine has all active parts on the
stator body and a rugged rotor structure suitable for high
speed operation. Some design parameter refinements are
conducted to this machine in order to elevate maximum
torque and maximum power densities. As a result, it is shown
that the proposed machine after the design refinements
becomes a good candidate for target HEV drive applications. |
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