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Sādhanā

, 44:112 | Cite as

Analysis of a novel disc-type hybrid stepper motor with field circuit model

  • J KavithaEmail author
  • B Umamaheswari
Article
  • 18 Downloads

Abstract

This paper presents modelling and analysis of a novel disc-type hybrid stepper motor (DTHSM) and brings out its relative merits over the cylindrical version. The machine is characterized by winding free rotor- and stator-placed field coils/permanent magnets, creating homopolar field. DTHSM has the advantage of providing independent space for the field and armature, while other stator field machines have to share the same core space for both the field and armature. This increases field strength both by permanent magnet as well as field coils to achieve increased torque and speed ranges. The machine parameters are obtained using a field circuit model and its performance is predicted using analytical equations. A 50-W, 200 steps DTHSM prototype is fabricated and tested. Aggregation of simulation and experimental results validates the effectiveness of the proposed configuration.

Keywords

Radial flux axial flux hybrid stepper motors unipolar equivalent magnetic circuit 

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Electrical and Electronics EngineeringRajalakshmi Engineering CollegeChennaiIndia
  2. 2.Department of Electrical and Electronics Engineering, College of Engineering GuindyAnna UniversityChennaiIndia

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