Applicability of LED lamps classification methods

Gutierrez-Ballesteros, Elena; Rönnberg, Sarah; Gil-de-Castro, Aurora

doi:10.1109/ichqp53011.2022.9808648

Cited by 4 publications

(2 citation statements)

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“…Not every LED lamp on the market is sensitive to voltage fluctuations, i.e., producing a measurable light flicker over a certain threshold. Thirteen out of the 32 LED lamps (40 %) are considered as sensitive to voltage fluctuations in [15] applying the methodology in [20]. Eleven of the sensitive LED lamps (ranging from 3 W to 11 W) have been used to quantify the severity factor.…”

Section: A Led Lampsmentioning

confidence: 99%

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Stochastic Assessment of Risk of Light Flicker in a Household

Gutierrez-Ballesteros,

Rönnberg,

Gil-De-Castro

2023

IEEE Access

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This paper introduces the concept of risk applied to light flicker. It offers a novel stochastic assessment of the risk of light flicker produced by voltage fluctuations from devices in a household. The paper has contributed with stochastic models of voltage fluctuations patterns from several household devices. The voltage fluctuations severity has been determined based on the perception of light flicker from a generalized LED lamp using an index defined as severity factor, what is a novel assessment in contrast to the incandescent lamp considered in the IEC 61000-4-15 standard. The severity factor can be equal to 1, 2 or 3 in increasing order of severity. Each of the severity factors indicates a probability of light flicker equal to or over the perception threshold in a generalized LED lamp and, therefore, a probability of light flicker perceived by an average observer. The severity factor is later used to obtain the risk of light flicker by calculating an index defined as the probabilistic number of voltage fluctuations in a 10-minute interval producing light flicker equal to or over the perception threshold (𝑃 = 1) in a generalized LED lamp. A 𝑃 value is obtained from the risk of light flicker index calculated. The results show a low risk of annoying light flicker due to voltage fluctuations from devices in a household for an average observer.INDEX TERMS Household, LED lamps, light flicker, risk, voltage fluctuations.

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Section: A Led Lampsmentioning

confidence: 99%

“…in the first seconds after switching on. The synthetic voltage profile in [15] has been used to compare the resulting light flicker in stable and cold LED lamps using the methodology in [20]. For most of the cases, the LED lamps considered as sensitive are more sensitive after the stabilization time.…”

Section: Light Flickermentioning

confidence: 99%