Design Of Detection Device Of Charge-Discharge Performance Of Solar Photovoltaic Lighting System

The energy crisis is getting worse Currently, all countries resolving the crisis by searching for renewable energy and improving the efficiency of energy, solar energy semiconductor lighting system is the typical specific representation. Because of its characteristic of energy-saving and environmental protection, In recent years, the world's photovoltaic industry and semiconductor lighting industry have rapidly developed, chinese solar energy semiconductor lighting industry also has rapidly developed, various types of solar energy semiconductor lighting system has been researched and has been put into the market. Relative to the booming solar energy semiconductor lighting market, the corresponding detection technology has developed slowly. So far, test equipment for energy efficiency of solar energy semiconductor lighting system has not introduced home.The aiticle built the detection device of charge and discharge performance of solar lighting equipment based on virtual instrument technology, through using USB data acquisition, hall current sensor, solar cell and lead-acid battery, and the parameters of the terminal voltage of solar cells, solar cell output current, battery terminal voltage, battery charge current and battery discharge current are tested.Lab VIEW process control data acquisition and realize data acquisition on the voltage and current data, display and storage function, edit the measured voltage and current solar cells respectively obtained to edit hours of electricity security, battery charging safety and hours of hours of battery discharge safety the cumulative value of solar energy power generation, battery charging and battery discharge energy accumulated value of the cumulative value of energy and other parameters.Solar LED street light automatic control circuit is designed as an experimental platform. Circuit including the battery charge and discharge protection circuit, light control circuit, delay circuit, power conditioning circuit and LED driving circuit. LED street light can work under three modes of light control, delay lighting and delay plus power conditioning. Tested the real-time data of charging voltage of solar cell, output current of solar cell, battery charge current, battery terminal voltage, drew the dirgrams;tested the real-time data of battery discharge voltage, battery discharge current, drew the dirgrams.