A high-performance stand-alone solar PV power system for LED lighting
Journal
IEEE Photovoltaic Specialists Conference
Pages
2346-2348
ISBN
9.78142E+12
Date Issued
2010
Author(s)
Abstract
The present study developed a high-performance solar PV power technology for the LED lighting of a solar home system. The nMPPO (near-Maximum-Power- Point- Operation) design is employed in system design to eliminate MPPT. A feedback control system using pulse width modulation (PWM) technique was developed for battery charging control which can increase the charging capacity by 78%. For high-efficiency lighting, the LED is directly driven by battery using a PWM discharge control to eliminate a DC/DC converter. Two solar-powered LED lighting systems (50W and 100W LED) were built. The long-term outdoor tests have shown that the loss of load probability for full-night lighting requirement is zero for 50W LED and 3.6% for 100W LED. © 2010 IEEE.
SDGs
Other Subjects
Charging control; Discharge control; High efficiency; LED lighting; Loss of Load probabilities; Power technologies; Solar home system; Solar PVs; Solar-powered LED lighting system; Stand -alone; System design; Adaptive control systems; Charging (batteries); DC-DC converters; Feedback control; Lighting; Photovoltaic effects; Probability; Pulse width modulation; Systems analysis; Light emitting diodes
Type
conference paper