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Modelling of switched reluctance machines with magnetically coupled windings

Lookup NU author(s): Professor Barrie Mecrow, Christian Weiner


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This paper presents a method of modelling switched reluctance motors with strongly coupled windings, such as SRMs with fully pitched windings or with commutating windings. These machines are particularly difficult to model because, unlike a conventional SRM, the flux linking any one winding of the machine is a non-linear function of rotor position and all phase currents. The problem is overcome by breaking down the instantaneous flux-linkages and currents in each phase to give the flux and MMF in each tooth of the machine. The flux and MMF per tooth can then be linked in the model by a simple look-up table, determined from either simulation or measurement. The paper describes the simulation method in detail and then gives extensive comparisons between measurement and simulation results for an SRM with fully pitched windings, operating over a range of operating conditions. The results presented also serve to give an insight into the method of operation of these rather complex machines.

Publication metadata

Author(s): Mecrow BC, Weiner C, Clothier AC

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Conference Record of the 2000 IEEE Industry Applications Conference

Year of Conference: 2000

Pages: 79-86

ISSN: 0780364015

Publisher: Institution of Electronic and Electrical Engineers


DOI: 10.1109/IAS.2000.880991