SOLAR SMART LED STREET LIGHTING SYSTEM
Keywords:
Embedded system, Solar Panel, MPPT controller, battery & LEDsAbstract
This paper proposes the design and implementation of a technologically advanced, cost effective and smart
LED street light with the use of MPPT(Maximum Power Point Tracking)algorithm, and the latest microcontroller
LPC800 max board. The basic buildingblocks for the street light design include microcontroller of the ARM family,
battery for power supply and MPPT boostconverter. All the design configurations have been made with the LPC800
board which has ARM cortex M0+ controller. The MPPT algorithm is used to extract maximum power from the solar
panels.The MPPT boost converter circuit will boost the voltage and store it in the battery which will be consumed by the
power LED bank at night. I2C bus has been configured for the communication betweenmicrocontroller and ADC for
obtaining voltage and current samples which is primary need for designing MPPT. RTC is implemented for automatic
switching on and off the street lights. Microcontroller keeps monitoring the overall performance of the system and
feedback mechanism is also introduced to prevent the battery from getting overcharged.