Title :
Design analysis of permanent magnet DC motors with differing armature, magnet and yoke lengths
Author :
Narayanan, S. S Yegna ; Narayanan, V. ; Anandukumaran, K.R.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India
Abstract :
A modified magnetic circuit method and a 2-D finite element procedure are presented for the analysis of DC permanent magnet motors with a differing armature, magnet and yoke lengths including nonlinear material behaviour of steel and permanent magnet. A 12 volt, 120 watts motor is analyzed through these methods and compared with experimental results of a prototype sample. In the case of finite element analysis, commutation effects and short chording of armature winding are treated appropriately, and cogging torque and voltage ripple are predicted
Keywords :
DC motors; commutation; finite element analysis; machine theory; machine windings; magnetic circuits; permanent magnet motors; torque; 12 V; 120 W; 2-D finite element procedure; armature length; armature winding; cogging torque; commutation effects; finite element analysis; magnet length; magnetic circuit method; nonlinear material behaviour; permanent magnet DC motors; short chording; steel; voltage ripple; yoke length; Building materials; Commutation; DC motors; Finite element methods; Magnetic analysis; Magnetic circuits; Magnetic materials; Permanent magnet motors; Prototypes; Steel;
Conference_Titel :
Power Electronics, Drives and Energy Systems for Industrial Growth, 1996., Proceedings of the 1996 International Conference on
Conference_Location :
New Delhi
Print_ISBN :
0-7803-2795-0
DOI :
10.1109/PEDES.1996.536393
