Reference Power Analyzer Based on the Non-Coherent Sampling Method

Author

Gubler, G.B. ; Gutnikov, V.S. ; Shapiro, E.Z. ; Giniyatullin, I.A.

Author_Institution

St-Petersburg Tech. Univ., St Petersburg

fYear

2004

fDate

38139

Firstpage

368

Lastpage

369

Abstract

The paper presents the results of the development and characterisation of a three-phase reference power analyser ENERGOMONITOR 3.1. The power analyser is primarily designed for the calibration of industrial power analysers and for the most accurate field measurements of electrical power. The instrument is based on a method of calculating the measurement results from the array of sampled data that does not require the synchronisation of sampling and test signal frequencies. The analysis of a mathematical model has shown that theoretical errors in the measurement of basic energy quantities with distorted voltage and current waveforms do not exceed 0.003 % for the least favourable combinations of harmonic amplitudes and phases. The paper gives results of calibration of the power analyser against the standards at VNIIM

Keywords

calibration; electric field measurement; power measurement; synchronisation; waveform analysis; VNIIM; calibration; current waveforms; field measurements; non coherent sampling; reference power analyzer; sampling frequencies; synchronization; test signal frequencies; voltage waveforms; Calibration; Distortion measurement; Electric variables measurement; Frequency measurement; Frequency synchronization; Harmonic analysis; Instruments; Power measurement; Sampling methods; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2004 Conference on

Conference_Location

London

Print_ISBN

0-7803-8494-6

Electronic_ISBN

0-7803-8494-6

Type

conf

DOI

10.1109/CPEM.2004.305618

Filename

4097273