NDLI: Reduced-order estimation of power system harmonics

Content Provider	IEEE Xplore Digital Library
Author	Azemi, A. Yaz, E. Olejniczak, K.
Copyright Year	1995
Description	Author affiliation: Dept. of Eng., Penn State Univ., Media, PA, USA (Azemi, A.)
Abstract	The estimation problem of unknown and time-varying power system harmonic signal amplitudes is addressed using a modified form of a signal model which has previously appeared in the literature. Using state-variable techniques, this signal model not only accounts for the unknown variations in signal amplitude but also for the uncertainty or measurement error introduced by variations in instrument transformer frequency response and burdens, and other non-ideal effects which are in the guise of measurement noise. A novel reduced-order state estimator is then used to identify the harmonic components of each measured signal for possible use in harmonic mitigation methodologies. Simulation results using this new harmonic signal model and associated reduced-order estimator are compared to those obtained by the Kalman filter. The main application of this contribution is to flexible AC transmission systems (FACTS) controllers (e.g., static condenser (STATCON) or dynamic voltage restorer (DVR)) which are capable of real-time reactive power and harmonic compensation.
Starting Page	631
Ending Page	636
File Size	669682
Page Count	6
File Format	PDF
ISBN	0780325508
DOI	10.1109/CCA.1995.555807
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-09-28
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system harmonics Power harmonic filters Power system modeling Flexible AC transmission systems Amplitude estimation Time varying systems Measurement errors Instrument transformers Frequency response Frequency measurement
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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