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.
Wiedjaja, Harta S, L.Josses, Winardi and Hedwig D. R. (2013). Solar Panel System for Street Light Using Maximum Power Point Tracking (MPPT) Technique. EPJ Web of Conferences, 68 (17), 1-5.