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Identification of Synchronous Generator Transfer Functions From Standstill Test Data

[+] Author Affiliations
David-P. Molenaar, O. H. Bosgra, M. J. Hoeijmakers

Delft University of Technology, Delft, The Netherlands

Paper No. WIND2002-55, pp. 331-339; 9 pages
  • ASME 2002 Wind Energy Symposium
  • ASME 2002 Wind Energy Symposium
  • Reno, Nevada, USA, January 14–17, 2002
  • Conference Sponsors: ASME
  • ISBN: 1-56347-476-X
  • Copyright © 2002 by Delft University of Technology and ASME


The design of a robust frequency converter controller for high dynamic performance of a synchronous generator requires an accurate dynamic model of the electromagnetic part. In this paper a new procedure for identifying the transfer functions of Park’s dq-axis model of a synchronous generator has been developed. It will be shown that the parameters of this model can be easily identified from standstill time-domain data. The validity of the theoretical model has been verified by comparing time-domain simulations with measurements taken from the Lagerwey LW-50/750 direct-drive synchronous generator. It can be concluded that a consistent model estimate of the electromagnetic part of the LW-50/750 generator has been obtained. Ultimate validation, however, will follow after the implementation of the designed frequency converter controller in this wind turbine.

Copyright © 2002 by Delft University of Technology and ASME



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