An algorithm for determining the direction to a flicker source

Author

Axelberg, Peter G.V. ; Bollen, Math H J

Author_Institution

Unipower AB, Alingsas, Sweden

Volume

21

Issue

2

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

755

Lastpage

760

Abstract

This paper describes an algorithm for calculating the direction to a flicker source with respect to a monitoring point. The proposed algorithm is based on sampling of both the voltage and current. The low-frequency fluctuations in voltage and current are recovered from the input signals by demodulation, and passed through a bandpass filter as described in IEC 61000-4-15. A new quantity-flicker power-is defined from the output signals of the two filters. The direction to a flicker source is obtained from the sign of this flicker power. The proposed algorithm has been validated by simulations and several field measurements.

Keywords

IEC standards; band-pass filters; power filters; power supply quality; IEC 61000-4-15; bandpass filter; demodulation; flicker power; flickering source; low-frequency fluctuations; monitoring point; Band pass filters; Demodulation; Frequency; IEC standards; Impedance; Lamps; Monitoring; Power quality; Sampling methods; Voltage fluctuations; Electromagnetic compatibility; light flicker; power quality; power transmission and distribution systems; steel industry;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2005.861227

Filename

1610687