The effects of integration intervals on recursive rms and powers measurement in the presence of non-sinusoidal conditions

Author

Langella, R. ; Testa, A.

Author_Institution

Dept. of Inf. Eng., Second Univ. of Naples, Aversa, Italy

fYear

2010

fDate

22-24 Sept. 2010

Firstpage

47

Lastpage

52

Abstract

The effects of integration intervals on recursive rms and powers measurement in the presence of non-sinusoidal conditions are considered. The presence of time measurement intervals of both fixed and variable duration is assumed. Suitable formulas to evaluate the errors introduced by the desynchronization of measurement interval for active and apparent power, power factor and voltage and current rms values are developed. Then, the errors are evaluated in presence of smoothing of the results over a variable number of consecutive measurements by means of proper formulas. Some numerical experiment conclude the analysis showing the improvements of accuracy that can be obtained.

Keywords

power factor; power factor measurement; power measurement; RMS; active power; apparent power; integration intervals effects; measurement interval desynchronization; power factor; power measurement; time measurement intervals; Measurement uncertainty; Power measurement; Reactive power; Smoothing methods; Time frequency analysis; Time measurement; Harmonic and Interharmonic Pollution; Power; Power Quality; Rms Values; smoothing;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Measurements For Power Systems (AMPS), 2010 IEEE International Workshop on

Conference_Location

Aachen

Print_ISBN

978-1-4244-7372-4

Type

conf

DOI

10.1109/AMPS.2010.5609518

Filename

5609518