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Multi-dimensional Non-linear Lumped Magnetic Parameter Circuit for Dynamic Modelling of Mutual Coupling and Faults in Switched Reluctance Motors
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| Author(s) |
T. Sawata; P.C. Kjaer; J.J. Bremner; C. Cossar; T.J.E. Miller; J.R. Coles; G. White |
| Abstract |
Several of the applications for which the
switched reluctance motor (SRM) is considered a serious
contender require electromagnetic models that allow dy-
namic simulation of phase interaction arising from mutual
coupling, winding failures, inverter failures or mechanical
imperfections such as rotor eccentricity. The commonly
used superposition of single-phase magnetisation data does
not allow such a drive analysis. Magnetic equivalent cir-
cuits have been proposed to simulate these phenomena,
but great diculty is encountered when attempting to
represent the airgap and rotor/stator pole-tip permeances
analytically and independent of each other. This paper
proposes a new method to represent the SRM accurately
using a lumped parameter, magnetic equivalent circuit
which overcomes the aforementioned diculties. Simula-
tions under turns short-circuit faults were carried out and
the results were compared with the time-stepping FEA.
Various simulation results under faults were also analysed.
It shows the e ects of the fault on the performance and
demonstrates the feasibility of the new approach. |
| Download |
| Filename: | EPE1999 - PP00780 - Sawata.pdf |
| Filesize: | 316.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-30 by System |
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