Flicker Visibility With Different Spectra of White Light

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0197216" target="_blank" >RIV/00216305:26220/26:0197216 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/25:00013397 RIV/46747885:24410/25:00013397

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10909263" target="_blank" >https://ieeexplore.ieee.org/document/10909263</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIA.2025.3547290" target="_blank" >10.1109/TIA.2025.3547290</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flicker Visibility With Different Spectra of White Light

Popis výsledku v původním jazyce

The standard flickermeter (voltage flickermeter) algorithm commonly used for the evaluation of flicker severity in current electromagnetic compatibility standards originates from the 1980s. It was developed to mimic irritation of an average human observer by flickering incandescent lamp as a reference light source and optimized to voltage fluctuations caused by arc furnaces. However, the algorithm is questionable as the situation in the grid changed since the 1980s; many modern devices are being connected to the grid, creating voltage distortion patterns which are not properly recognized by the voltage flickermeter. In addition, incandescent lamps have been largely replaced by discharge lamps and later by LEDs. Transitioning the algorithm from incandescent lamp light to LED light requires detailed revision of every part of the algorithm. This paper is concerned with verifying the frequency weighting function of the average human observer which is one of the bases of the voltage flickermeter, as well as of the derived light flickermeter. Flicker sensitivity of 34 human observers is measured with two different light sources (LED warm and neutral white, incandescent lamp) and compared with the frequency weighting function used in the current specification of the flickermeters in standards. Finally, an optimization of the weighting function is proposed based on the findings.

Název v anglickém jazyce

Flicker Visibility With Different Spectra of White Light

Popis výsledku anglicky

The standard flickermeter (voltage flickermeter) algorithm commonly used for the evaluation of flicker severity in current electromagnetic compatibility standards originates from the 1980s. It was developed to mimic irritation of an average human observer by flickering incandescent lamp as a reference light source and optimized to voltage fluctuations caused by arc furnaces. However, the algorithm is questionable as the situation in the grid changed since the 1980s; many modern devices are being connected to the grid, creating voltage distortion patterns which are not properly recognized by the voltage flickermeter. In addition, incandescent lamps have been largely replaced by discharge lamps and later by LEDs. Transitioning the algorithm from incandescent lamp light to LED light requires detailed revision of every part of the algorithm. This paper is concerned with verifying the frequency weighting function of the average human observer which is one of the bases of the voltage flickermeter, as well as of the derived light flickermeter. Flicker sensitivity of 34 human observers is measured with two different light sources (LED warm and neutral white, incandescent lamp) and compared with the frequency weighting function used in the current specification of the flickermeters in standards. Finally, an optimization of the weighting function is proposed based on the findings.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

21100 - Other engineering and technologies

Projekt

<a href="/cs/project/GF22-10074K" target="_blank" >GF22-10074K: Vývoj nových algoritmů na výpočet flikru v podmínkách moderních rozvodných sítí elektrické energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS

ISSN

0093-9994

e-ISSN

1939-9367

Svazek periodika

61

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

6062-6071

Kód UT WoS článku

001523487300030

EID výsledku v databázi Scopus

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