Online parameter estimation of round rotor synchronous generators including magnetic saturation

Round rotor synchronous generator parameters are identified from online data measured at the terminals of the machine. Parameter estimation results from two generators are presented. Data sets at different operating points are considered to examine the consistency of the proposed method at varying o...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2005-09, Vol.20 (3), p.529-537
Main Authors: Kyriakides, E., Heydt, G.T., Vittal, V.
Format: Article
Language:English
Subjects:
Character generation
Damper currents
Estimates
Generators
Inductance
Magnetic saturation
Magnetic separation
Manufacturing
Mathematical models
modeling
online measurements
Parameter estimation
Rotors
Saturation
Saturation (magnetic)
Saturation magnetization
state estimation
Stator windings
synchronous generator
Synchronous generators
Testing
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Summary:Round rotor synchronous generator parameters are identified from online data measured at the terminals of the machine. Parameter estimation results from two generators are presented. Data sets at different operating points are considered to examine the consistency of the proposed method at varying operating conditions. A magnetic saturation model is implemented in the estimation procedure to account for the effect of saturation on generator inductances. Inclusion of saturation in the machine model is found to improve the estimation results. Noise filtering and bad data detection and rejection techniques are employed to increase the reliability of the estimates. An observer is used to estimate the damper winding currents that are otherwise unknown. The estimated parameters are compared to available manufacturer data and the accuracy of the method is assessed.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2005.847951