A virtual instrument for measurement of flicker

Author

Caldara, S. ; Nuccio, S. ; Spataro, C.

Author_Institution

Dipt. di Ingegneria Elettrica, Palermo Univ., Italy

Volume

1

fYear

1998

fDate

18-21 May 1998

Firstpage

342

Abstract

All types of fluctuations of the r.m.s. voltage in power systems may be assessed by using a flickermeter which complies with the specification given in IEC-EN 60868. In this paper a digital flickermeter is presented based on the implementation in the frequency domain of the weighting filter block of the eye-brain simulation chain. The virtual instrument, implemented with an acquisition board inserted on a PC and with a software developed with the LabView tools, samples the voltage and furnishes the instantaneous flicker level and other severity coefficients. Results of simulated and actual data are reported to validate the performances of the developed flickermeter

Keywords

computerised instrumentation; digital filters; digital instrumentation; digital simulation; electric noise measurement; flicker noise; frequency-domain analysis; microcomputer applications; signal processing equipment; smoothing circuits; virtual machines; IEC-EN 60868; LabView tools; acquisition board; digital flickermeter; eye-brain simulation; fluctuations; frequency domain; instantaneous flicker level; measurement of flicker; r.m.s. voltage; severity coefficients; virtual instrument; weighting filter block; Brain modeling; Demodulation; Frequency domain analysis; Heat pumps; IEC standards; Instruments; Low pass filters; Power transformer insulation; Umbilical cable; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE

Conference_Location

St. Paul, MN

ISSN

1091-5281

Print_ISBN

0-7803-4797-8

Type

conf

DOI

10.1109/IMTC.1998.679800

Filename

679800