Title :
Dynamic modeling of universal motors
Author :
Zhou, Ping ; Brauer, John R. ; Stanton, Scott ; Cendes, Zoltan J. ; Ebben, Roderick N.
Author_Institution :
Ansoft Corp., Pittsburgh, PA, USA
Abstract :
A general time-stepping approach is presented to solve coupled field-circuit-motion problems for universal motors. Circuit equations are used to describe the dynamic connections of field and armature coils, to include the end leakage inductance and the voltage drop across brushes, and to support a voltage source with arbitrary waveforms. In addition, the effects of the coils undergoing commutation have been considered by having them removed temporarily from the main winding and excited by a controlled current source
Keywords :
coils; commutation; electric motors; finite element analysis; machine theory; machine windings; armature coils; brushes voltage drop; commutation; controlled current source; coupled field-circuit-motion problems; dynamic connections; dynamic modelling; end leakage inductance; field coils; general time-stepping approach; universal motors; Brushes; Coils; Commutation; Coupling circuits; Electric potential; Equations; Inductance; Roads; Universal motors; Voltage;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769133
