Abstract
Solar energy is one form of the renewable energy which is very abundant in regions close to the equator. One application of solar energy is for street light. This research focuses on using the maximum power point tracking technique (MPPT), particularly the perturb and observe (P&O) algorithm, to charge battery for street light system. The proposed charger circuit can achieve 20.73% higher power efficiency compared to that of non-MPPT charger. We also develop the LED driver circuit for the system which can achieve power efficiency up to 91.9% at a current of 1.06 A. The proposed street lightning system can be implemented with a relatively low cost for public areas.
Highlights
The power source for street light in Indonesia are mainly still provided from the grids which are supplied mostly by non-renewable energy sources such as fossil fuels
In this research we focus on the charging controller circuit for street light system using solar panels, in an attempt to develop a good performance charging controller with relatively low cost
This research has developed a street light system for public area using solar panel and dried battery/cell as the energy storage. Energy efficiency to this system obtained by utilize solar panel to battery charging circuit using maximum power point tracking technique (MPPT), and using LED and high efficiency LED driver circuit
Summary
The power source for street light in Indonesia are mainly still provided from the grids which are supplied mostly by non-renewable energy sources such as fossil fuels. There are several alternatives of renewable energy source [1,2,3,4,5] that can be used for street light in public areas. One promising source of renewable energy in Indonesia is the sun which is available throughout the year. The price of the sun energy is still high compared to the power from fossil fuels [6] This high price is driven largely by the cost of the solar panels, the batteries, and the charging controller circuits. In this research we focus on the charging controller circuit for street light system using solar panels, in an attempt to develop a good performance charging controller with relatively low cost
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