Title :
Commutation analysis of universal motors taking into account brush-to-bar voltage drop
Author :
Kurihara, Kazumi ; Yamamoto, Kazuki ; Kubota, Tomotsugu
Author_Institution :
Dept. of Electr. & Electron. Eng., Ibaraki Univ., Hitachi, Japan
Abstract :
This paper presents a novel commutation analysis of universal motors taking into account the brush-to-bar voltage drop. Time-stepping finite element analysis has been used to compute the brush-to-bar voltage drop of the universal motors, where the measured curve of the brush voltage drop is used instead of that due to the brush-to-bar contact resistance. Computed results of the voltage between a brush and a leading bar at the trailing edge for a AC100V universal motor are obtained.
Keywords :
AC motors; commutation; commutator motors; finite element analysis; AC100V universal motor; brush-to-bar contact resistance; brush-to-bar voltage drop; commutation analysis; time-stepping finite element analysis; universal motors; Bars; Brushes; Coils; Commutation; Contact resistance; Current density; Electrical resistance measurement; Finite element methods; Universal motors; Voltage; Brush-to-bar voltage drop; commutation; finite-element analysis; universal motor;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382653
