Research of the Negative Influence of Dimmed LED Luminaires in Context of Smart Installations

Peter Drgona, Peter Durana and Tibor Betko
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Peter Drgona: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, Univerzitna 1, 01026 Žilina, Slovakia
Peter Durana: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, Univerzitna 1, 01026 Žilina, Slovakia
Tibor Betko: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, Univerzitna 1, 01026 Žilina, Slovakia

Sustainability, 2021, vol. 13, issue 17, 1-22

Abstract: This article deals with the investigation of the negative impacts of dimmed public, industrial and office LED (light emitting diode) light installations. This approach is required due to the uncertain design of LED ballasts, while manufacturers do not implement the required PFC (power factor correction) function. Therefore, the focus is on a brief description of the principles of negative influences such as: low power factor, high inrush current and high total harmonic distortion based on direct confrontation with actual standards (IESC EN, NEMA, ENERGY STAR). Further, the behavior of LED drivers is explained under nominal load and dimmed up to critical level. Presented findings confirm issues reported by users from larger installations where LED fittings are dimmed over a certain level. The article includes recommendations for consumers and producers of LED fittings about main issues from the scientific and user points of view. Presented facts conclude on the necessity of studying the marginal operating state of LED fittings aiming at THD (total harmonic distortion), PF (real power factor) and inrush currents.

Keywords: dimmed LED fitting installations; real power factor; total harmonic distortion; inrush current; measurement (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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