Design methodology for a special single winding based bearingless switched reluctance motor

The Journal of Engineering

Firdausa Ahmed¹  Kari Tammi²  Madhurjya Dev Choudhury³  Karuna Kalita³  Gaurav Kumar³ 

[1] Center for Energy, Indian Institute of Technology Guwahati, Guwahati 781039, India;Department of Mechanical Engineering, Aalto University, P.O. Box 11400, 00076 Aalto, Finland;Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India

关键词: magnetic bearing;    radial force;    bearingless switched reluctance motor;    stator-rotor overlap angle;   

DOI  :  10.1049/joe.2016.0368

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

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.

【 授权许可】

CC BY