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Investigation of Losses and Efficiency in Switched Reluctance Motor
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| Author(s) |
Pavol Rafajdus, Valeria Hrabovcova, Peter Hudak |
| Abstract |
This paper deals with estimation of losses and
efficiency of Switched Reluctance Motor (SRM), which is
supplied from converter and motor is working under load
conditions with different torques and at different speeds.
The losses in a SRM consist mainly of stator winding losses
and core losses. The winding losses are proportional to the
square of the r.m.s current whereas the core losses are
function of the excitation frequency and flux density, but the
flux density depends on stator current waveforms. The
different parts of the SRM core are subjected to the
different frequency of flux reversals when the electric
machine is operating at constant speed and load. This paper
deals with investigation of copper losses including skineffect
and iron losses in individual parts of SRM by means
of two analytical approaches and by means of FEM. The
efficiency of SRM and converter is measured and presented.
The calculations of a real 3-phase 12/8 SRM are verified by
measurements. |
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| Filename: | T4-309.pdf |
| Filesize: | 260.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2007-03-12 by System |
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