A Method for on-Line Identification of Power System Model Parameters in the Presence of Noise

This paper describes a method for obtaining the parameters of power system controllers and generators while these devices are operating on-line or disconnected from the system. The technique has been developed to work in the presence of random disturbances acting on the system being studied. Wide-ba...

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Bibliographic Details
Published in:IEEE transactions on power apparatus and systems 1982-09, Vol.PAS-101 (9), p.3105-3111
Main Authors: Bollinger, K.E., Khalil, H.S., Li, L. C. C., Norum, W. E.
Format: Article
Language:English
Subjects:
Least squares approximation
Manufacturing processes
Parameter estimation
Power system control
Power system modeling
Power system planning
Power system stability
Power system transients
Pulp manufacturing
Signal processing
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Summary:This paper describes a method for obtaining the parameters of power system controllers and generators while these devices are operating on-line or disconnected from the system. The technique has been developed to work in the presence of random disturbances acting on the system being studied. Wide-band noise is used as an excitation signal on the system and this enables the analyst to obtain a good estimate of time constants with magnitudes that are widely separated, Also the least-squares- parameter-estimator is quite stable and, for the examples used in this paper, convergence to within approximately 2% was obtained with initial estimates in excess of 400% of the true values.
ISSN:0018-9510
2995-6323
DOI:10.1109/TPAS.1982.317522