Evaluation of Inrush Current in LED Luminaires Applied to Urban Lighting Based on Multi-Criteria Decision-Making Methods: A Case Study

ABSTRACT

In recent years, a progressive renovation of public lighting has been taking place in cities, from metal halide lamps to LED luminaires. This renovation has been carried out on a large scale by replacing some luminaires with others without taking into account other elements of the circuit. Due to the high number of electronic components, LED luminaires generate inrush currents that can exceed several times the nominal current value at ignition process. This electrical phenomenon is a basic problem to be solved when planning a street lighting renovation with LED luminaires, because it is essential to have a prior estimation of the inrush current generated by the luminaires for a correct sizing of the circuit protection elements. Currently, it is difficult to predict the value of the inrush current, for this reason, the main objective is to establish an innovative methodology based on advanced multi-criteria decision-making methods (entropy and CRITIC) to predict anomalous behaviors (inrush current peaks) in LED luminaire installations and their appropriate selection in the design phase or before are mounted in the circuit to avoid negative consequences on the components and to dimension them correctly, producing cost savings in the replacement of circuit elements such as circuit breakers and switches.

KEYWORDS:

• CRITIC
• entropy
• inrush current
• LED
• MCDM

Acknowledgments

University of Jaén for materials used in this study.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions

Conceptualization, M.J.H.-O., J.T-C, and J.d.D.U.-S.; methodology M.J.H.-O, J.T-C and J.d.D.U.-S.; validation, M.J.H.-O., J.T-C and B.O.-F.; formal analysis M.J.H.-O., J.T-C, and J.d.D.U.-S.; research, M.J. H.-O., J-T-C. and J.d.D.U.-S.; resources, writing M.J.H.-O., J.T-C and J.d.D.U.-S.; writing --review and editing, M.J.H.-O., J.T-C, and J.d.D.U.-S.; visualization M.J.H.-O., J.T-C and J.d.D.U.-S. supervision, M.J.H.-O., J.T-C and B.O.-F.; project administration, M.J.H-O and J.T-C.

Additional information

Funding

This research received external funding. This work is funded by The Spanish Government’s state-wide research project entitled: Sustainability and resilience of medium-sized cities and their contribution to the energy transition: circular urban metabolism, energy scenarios and indicator proposals. Acronym: METURBAN2030. Project type: Competitive R+D+I projects. Start date: 12/01/2022. End date: 11/30/2024. Funding entity: MINISTRY OF SCIENCE AND INNOVATION. GOVERNMENT OF SPAIN. Management centre: Research Management Service. Code: 2022/00407/001. Internal reference: MICIN_Transition_ECO_DIG_2021.