Time-Domain Identification of Synchronous Generator Transfer Functions

[+] Author and Article Information
David-P. Molenaar, O. H. Bosgra

Mechanical Engineering, Systems and Control Group, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands

M. J. Hoeijmakers

Electrical Power Processing Group, Faculty of Information Technology and Systems, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlandse-mail: M. J. Hoeijmakers@its.tudelft.nl

J. Sol. Energy Eng 124(4), 419-426 (Nov 08, 2002) (8 pages) doi:10.1115/1.1510136 History: Received March 01, 2002; Revised July 01, 2002; Online November 08, 2002
Copyright © 2002 by ASME
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Schematic representation of an elementary three-phase, two-pole synchronous generator
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Block diagram of an ideal synchronous machine at standstill
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Full and minor hysteresis loop (width of loop is exaggerated) with approximate slope (dashed-dotted line) and R: initial magnetic state
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Scheme of the measurement set-up of the modified step-response test as used for the identification of the machine parameters of the synchronous generator (SG) of the Lagerwey LW-50/750 wind turbine
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Time-domain MSR input-output signals for estimation of transfer function Yq(s) (excitation uq and response iq)
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Left figures: measured inputs ud,uf, and uq as a function of time. Right figures: outputs id,if, and iq as a function of time. Solid lines: measured data (validation data set), and dashed-lines: simulated data.
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Outputs id,if, and iq as a function of time. Solid lines: measured data (validation data set), and dashed-lines: simulated data.




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