Title :
Electromagnetic damping in stepping motors
Author :
Hughes, A. ; Lawrenson, P.J.
Author_Institution :
University of Leeds, Department of Electrical & Electronic Engineering, Leeds, UK
fDate :
8/1/1975 12:00:00 AM
Abstract :
The mechanism of electromagnetic damping in stepping motors is investigated, and it is shown that the damping depends on three parameters of the motor/drive circuit. The observed differences in damping between the widely used single-phase and 2-phase excitation schemes are shown to arise from the different equilibrium conditions, and the much greater damping with 2-phase operation is fully explained. Simple formulas for the prediction and optimisation of damping are developed, and these are directly applicable to all types of permanent-magnet and variable-reluctance stepping motors.
Keywords :
damping; stepping motors; electromagnetic damping; equilibrium; excitation; optimisation; permanent magnet motors; stepping motors; variable reluctance motors;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1975.0222
