Fast and accurate measurement of power system frequency

Author

Abu-El-Haija, Ahmad I.

Author_Institution

Jordan Univ. of Sci. & Technol., Irbid, Jordan

Volume

2

fYear

2000

fDate

2000

Firstpage

941

Abstract

A simple, fast and accurate method is presented for the measurement of the power system frequency. The method is based upon counting the number of strips (or samples) between zero crossings during one complete cycle of the sinusoidal waveform. Since the number of strips is usually not an integer, an estimate is derived that is very close to the actual value. The frequency is directly calculated front the number of strips. The measurement can be performed in at most 25 ms for a 60-Hz frequency, and at most 30 ms for a 50-Hz frequency. If the sinusoidal signal is sampled at 8 kHz for the purpose of measurement, the proposed method achieves accuracy in measuring the frequency of about 0.0001-0.0004 Hz

Keywords

frequency measurement; power system measurement; signal sampling; waveform analysis; 50 Hz; 60 Hz; fast accurate measurement; harmonic distortion effect; noise effect; number of strips; operational frequency; power system frequency measurement; sample interval; sinusoidal waveform; zero crossings; Estimation error; Frequency estimation; Frequency measurement; Power generation; Power measurement; Power system measurements; Power system stability; Power systems; Signal to noise ratio; Strips;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE

Conference_Location

Baltimore, MD

ISSN

1091-5281

Print_ISBN

0-7803-5890-2

Type

conf

DOI

10.1109/IMTC.2000.848870

Filename

848870