Análisis de perturbaciones armónicas producidas por luminarias de tecnología LED en una red de alumbrado público

Abstract

Light-emitting-diode (LED) lighting is replacing other lighting sources such as mercury and sodium high intensity discharge (HID) lamps. LED technology has multiple advantages over its predecessors and it is currently used in homes, industries, monuments and even for street lighting. On the other hand, LED luminaries and LED lamps could have negative effects on distribution system quality due to the current distortion they inject into the grid. In this sense, the following project evaluates the impact that LED luminaires could have in public lighting networks by measuring, modeling and simulating a study case in which high pressure sodium luminaires are replaced by LED luminaires.

The project contains a road lighting design and harmonic measurements. Measurement results are used to model harmonic sources in the distribution system. Simulation results of total harmonic distortion on the distribution system allow to compare both technologies. According to the results obtained, the impact of the LED luminaires on the system is analyzed. Finally, a financial analysis is carried out, considering two alternatives, the first, replacing HID luminaires with LED luminaires, and the second, maintaining HID technology in the public lighting network.