Cogging Torque Minimisation of PM Disc Motor by Inserting Stator Slot Closure and Magnet Skewing

نویسندگان

  • Goga CVETKOVSKI
  • Lidija PETKOVSKA
  • Sinclair GAIR
چکیده

A variety of techniques exist for reducing the cogging torque of conventional radial flux PM machines. This paper presents an application of two cogging torque minimization techniques in which the permanent magnets are skewed in a conventional manner and the stator slots are closed with soft magnetic composite material. The comparative analysis of the different motor designs regarding the cogging torque is performed by using data from a quasi 3DFEM calculation of the adequately FEM modelled motor solutions. Streszczenie. Istnieją różnorodne sposoby redukcji momentu uzębienia w konwencjonalnych maszynach z magnesem trwałym ze strumieniem promieniowym. Artykuł przedstawia zastosowanie dwóch sposobów minimalizacji momentu uzębienia, w których magnesy trwałe są skoszone w sposób konwencjonalny a żlobki stojana są zamknięte miękkim kompozytowym materiałem magnetycznym. Analiza porównawcza różnych projektów silnika co do momentu uzębienia przedstawiono za pomocą danych z obliczeń quasi-3D metodą elementów skończonych. (Minimalizacja momentu uzębienia silników dyskowych z magnesami trwałymi poprzez zamknięcie żłobków stojana i skoszenie magnesów trwałych)

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تاریخ انتشار 2012