Title :
A virtual instrument for measurement of flicker
Author :
Caldara, Salvatore ; Nuccio, Salvatore ; Spataro, Ciro
Author_Institution :
Dept. of Electr. Eng., Palermo Univ., Italy
fDate :
10/1/1998 12:00:00 AM
Abstract :
All types of fluctuations of the rms voltage in power systems may be assessed by using a “flickermeter” which complies with the specifications 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 into 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 performance of the developed flickermeter
Keywords :
digital filters; digital instrumentation; frequency-domain analysis; power supply quality; power system faults; power system measurement; signal sampling; virtual instrumentation; voltage measurement; EMC; IEC-EN 60868; LabView tools; PC-based meter; RMS voltage fluctuations; digital flickermeter; eye-brain simulation chain; flicker measurement; frequency domain; instantaneous flicker level; performance; power quality; sampling frequency; severity coefficients; virtual instrument; weighting filter block; Demodulation; Digital filters; Frequency domain analysis; IEC standards; Instruments; Low pass filters; Power system measurements; Power system simulation; Power transformer insulation; Voltage fluctuations;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
