Accurate measurement of line frequency in the presence of noise using time domain data

Author

Lee, Jong-Hoon ; Devaney, Michael J.

Author_Institution

Dept. of Electr. & Comput. Eng., Missouri Univ., Columbia, MO, USA

fYear

1994

fDate

10-12 May 1994

Firstpage

1016

Abstract

A new technique for the accurate measurement of the frequency of sinusoidal signals in the presence of noise using time-domain data is proposed. This software-based method is based upon an estimation of the zero crossings and measures the elapsed time between an even number of the estimated zero crossings with smoothing. The method is iterative in that the sample rate is adjusted, in so far as its resolution permits, to be a multiple of the estimated frequency and this permits a progressive refinement of the frequency measurement

Keywords

computerised instrumentation; frequency measurement; parameter estimation; power system measurement; waveform analysis; estimated frequency; even number; frequency measurement; power line frequency; sinusoidal signals; smoothing; software-based method; time domain data; time-domain data; Frequency estimation; Frequency measurement; Iterative methods; Noise measurement; Power system harmonics; Sampling methods; Signal processing algorithms; Smoothing methods; Time measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE

Conference_Location

Hamamatsu

Print_ISBN

0-7803-1880-3

Type

conf

DOI

10.1109/IMTC.1994.351932

Filename

351932