Measurement and prediction of voltage flicker magnitude and frequency

Author

Girgis, Adly A. ; Stephens, John W. ; Makram, Elham B.

Author_Institution

Electric Power Res. Association, Clemson Univ., SC, USA

Volume

10

Issue

3

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1600

Lastpage

1605

Abstract

Voltage flicker refers to a slow-0.5 to 30 Hz-modulation of the power system voltage magnitude. This periodic fluctuation can be modelled as an amplitude modulated signal, where the fundamental power frequency represents the carrier signal and the voltage flicker represents the modulating signal. An algorithm based on this premise is developed to estimate the instantaneous magnitude and frequency of the voltage flicker. The algorithm, which is based on Kalman filter estimation, can also be used to predict the instantaneous flicker level

Keywords

Kalman filters; amplitude modulation; filtering theory; measurement theory; power system harmonics; power system measurement; 0.5 to 30 Hz; Kalman filter estimation; algorithm; amplitude modulated signal; carrier signal; frequency; fundamental power frequency; magnitude; measurement; modulating signal; periodic fluctuation; power system; prediction; voltage flicker; Amplitude modulation; Electrodes; Filtering; Filters; Frequency estimation; Frequency measurement; Furnaces; Power system harmonics; Refining; Voltage fluctuations;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.400945

Filename

400945