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

Authors :
Cheng, Chun-An
Cheng, Hung-Liang
Chang, Chien-Hsuan
Chang, En-Chih
Kuo, Zheng-You
Lin, Cheng-Kuan
Hou, Sheng-Hong
Source :
Sustainability (2071-1050); Jul2023, Vol. 15 Issue 13, p10579, 19p
Publication Year :
2023

Abstract

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20711050
Volume :
15
Issue :
13
Database :
Complementary Index
Journal :
Sustainability (2071-1050)
Publication Type :
Academic Journal
Accession number :
164940766
Full Text :
https://doi.org/10.3390/su151310579