Smart LED Streetlighting System with Improved Power Quality and Low Standby Consumption

Jha, Aman

doi:10.1109/rdcape47089.2019.8979119

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Finally, in contrast to traditional lighting technology, LED streetlights have an instant start time, which means they can be switched on and off as required without pre-heating time. As a result, LEDs provide a more cost-effective, environmentally friendly, and efficient option with attractive properties and play an important role in replacing traditional streetlights [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

An AC-DC LED Integrated Streetlight Driver with Power Factor Correction and Soft-Switching Functions

Cheng

Chang

et al. 2023

Sustainability

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The use of light-emitting diodes (LEDs) in street lighting applications has been greatly welcomed with the current trends of energy saving, environmental protection, carbon reduction, and sustainable development. This paper presents a novel AC-DC LED integrated streetlight driver that combines an interleaved buck converter with a coupled inductor and a half-bridge series resonant converter with a full-bridge rectifier into a single-stage power conversion topology with power factor correction (PFC) and soft switching capabilities. The PFC is achieved by designing the coupling inductor in the interleaved buck converter sub-circuit in discontinuous conduction mode. In addition, the resonant tank in the half-bridge series resonant converter sub-circuit is designed to be similar to an inductive load, thus giving the power switch a zero-voltage switching (ZVS) function, decreasing switching losses and increasing the overall efficiency of the proposed circuit. A prototype circuit of the proposed LED integrated streetlight driver with a power rating of 165 W (235 V/0.7 A) and 110 V input utility voltage has been developed and tested. According to the measurement results, a power factor greater than 0.98, a total harmonic distortion coefficient of the input current less than 3%, and an efficiency greater than 89% were obtained in the AC-DC LED integrated streetlight driver. Therefore, the experimental results are satisfactory and demonstrate the functionality of the proposed AC-DC LED integrated streetlight driver.

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