Open AccessDesign methodology for a special single winding based bearingless switched reluctance motor
Author(s) -
Choudhury Madhurjya Dev,
Ahmed Firdausa,
Kumar Gaurav,
Kalita Karuna,
Tammi Kari
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2016.0368
Subject(s) - switched reluctance motor , rotor (electric) , control theory (sociology) , stator , reluctance motor , levitation , torque , magnetic bearing , finite element method , computer science , bearing (navigation) , electromagnetic coil , engineering , mechanical engineering , magnet , physics , structural engineering , electrical engineering , artificial intelligence , control (management) , thermodynamics
Bearingless switched reluctance motors (BSRMs) have both magnetic bearing as well as conventional motor characteristics which make them suitable for diverse industrial applications. This study proposes a design methodology for a BSRM in order to calculate the appropriate geometrical dimensions essential for realising a minimum levitation force at every orientation of rotor. It is based on the stator–rotor overlap angle and helps in reducing the complexities associated with the self‐bearing operation of a switched reluctance motor (SRM). Different from a conventional SRM, the motor under study deploys a special single set parallel winding scheme for simultaneous production of torque as well as radial force. An analytical model incorporating this single set winding is developed for calculating the torque and the radial force. The proposed bearingless design is verified by developing a two‐dimensional finite‐element model of a 12/8 SRM in ANSYS Maxwell.