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A Review of Flicker Severity Assessment by the IEC Flickermeter

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4 Author(s)
Ruiz, J. ; Dept. of Electron. & Telecommun., Univ. of the Basque Country, Bilbao, Spain ; Gutierrez, J.J. ; Lazkano, A. ; Ruiz de Gauna, S.

This paper presents an analysis of the flicker assessment by block 5 of the International Electrotechnical Commission (IEC) flickermeter. We compare the values provided by the IEC flickermeter from field measurements and the complaints from the customers. We also analyze the behavior of the IEC flickermeter when subject to signals containing nonuniform rectangular fluctuations. Finally, as it is not easy to find a consistent relationship between the true annoyance and the flicker severity, we describe some laboratory subjective tests with a small group of people, carried out to assign a true quantitative value of annoyance to a nonuniform light fluctuation from real situations. Block 5 of the IEC flickermeter derives its estimate of the annoyance accurately only for uniform fluctuations. In realistic conditions, when the voltage fluctuations are not uniform but have varying frequencies and amplitudes, the IEC flickermeter does not assess the true flicker annoyance precisely.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:59 ,  Issue: 8 )

Date of Publication:

Aug. 2010

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