Three Port Converter for Public LED Lighting System: doi: 10.14456/mijet.2021.19

Leardpan Piansangsan

Authors

Leardpan Piansangsan Pichayabundit College

Keywords:

Bidirectional, Buck, Boost, Lighting system

Abstract

The objective of this research is to present a stand-alone solar power LED lighting system based on a bidirectional DC/DC convert circuit. A non-isolated bidirectional converter is derived from the unidirectional DC/DC converters. The converter is operated in two modes; buck mode operates for charging the battery during the day, and boost mode operates for supplying energy to an LED at night time. The converter is controlled by a PWM signal in accordance with the controlled switching operation for bidirectional power flow. Simulation and experimental results from the 10W prototype are provided to verify the theoretical analysis.

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