Title :
Design and Implementation of a Novel High-performance Stand-alone Photovoltaic LED Lighting System
Author :
Ai, Ye ; Liu, Tingzhang ; Wang, Shisong
Author_Institution :
Shanghai Key Lab. of Power Station Autom. Technol., Shanghai Univ., Shanghai, China
Abstract :
This paper presents a novel high-performance standalone photovoltaic (PV) lighting system which can provide functional illumination based on high power White LEDs. An improved incremental conductance Maximum Power Point Tracking (MPPT) method is proposed in PV system to maximize the photovoltaic array output power, irrespective of the temperature and irradiation conditions and of the load electrical characteristics. A novel strategy to charge the battery is designed from the analyses and comparison results. In order to provide a steady-state operating environment for high power White LEDs, a specially designed LED drive module is implemented. Further more, a self-adapting dimming control is designed to maintain a stable indoor illuminance. Experimental results show the performance of the proposed photovoltaic lighting system.
Keywords :
LED lamps; adaptive control; lighting; photovoltaic power systems; LED drive module; PV system; functional illumination; maximum power point tracking method; photovoltaic LED lighting system; photovoltaic array; photovoltaic power generation systems; self-adapting dimming control; Batteries; Electric variables; LED lamps; Light emitting diodes; Lighting; Photovoltaic systems; Power generation; Solar power generation; Steady-state; Temperature;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449457
