Electrical Engineering

, Volume 94, Issue 3, pp 155–163

Gentle synchronization of two-speed synchronous motor with asynchronous starting

Authors

    • Institute of Electrical Machines, Drives and MetrologyWroclaw University of Technology
  • Jan Zawilak
    • Institute of Electrical Machines, Drives and MetrologyWroclaw University of Technology
Open AccessOriginal Paper

DOI: 10.1007/s00202-011-0227-1

Cite this article as:
Zalas, P. & Zawilak, J. Electr Eng (2012) 94: 155. doi:10.1007/s00202-011-0227-1

Abstract

The paper presents the results of synchronization calculations for a selected model of the GAe 1716/20t two-speed synchronous motor with switchable armature and field magnet windings, used for driving the main fans in deep mines. The calculations were performed using a specially developed (and validated by measurements) field-circuit model of the motor. The effect of the initial instant of synchronization on the latter’s effectiveness and on dynamic process stabilization time was studied. It is shown that synchronization effectiveness can be increased through proper field current control in the synchronization initiation–synchronous speed interval. It is also shown that synchronization time can be reduced and the dynamic waveforms attenuated after the motor reaches the synchronous speed. The calculation results are presented in the form of diagrams.

Keywords

ElectrotechnologySynchronous motorsSynchronization processFEM modelling
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Copyright information

© The Author(s) 2011