Research On Photovoltaic Off-grid Power And Monitoring System

Traditional energy crisis is the grate threat of the development of human civilization to today. It is a major issue in the world how to seek and develop new energy, the clean energy as a kind of inexhaustible and can obtain everywhere, solar energy is attracting more and more attention all over the world. That is why the utilization of solar energy has been developing very quickly in recent days.There are various forms of utilization of solar energy, Photovoltaic(PV) solar power is one of the main forms. There are two kind of utilization of PV solar power, grid-connected and off-grid. And stand-alone off-grid PV solar power can meet the electricity demand of outdoor areas or no grid power situations.This topic research on stand-alone off-grid PV power system, and use Wifi transmission technology for communication monitoring. The system is composed of MPPT charger, lead acid battery, pure sinewave AC output and DC USB output. In order to verify the results in theoretical design stage can achieve the desired results, the system use MATLAB/Simulink to carry on simulation experiment, as well as analysis and research of the results. Meanwhile, it carry on soft ware analysis of the system operation. Charging, inverter, and monitoring of the system control by different MCU, which connection with system operation.Set up the experimental platform according to the product design, and carry on the test of MPPT, charging, inverter output and monitoring mode, which verify that product function meet the demands. Further more, the product was tested the standard by professional certification laboratory to verify the electromagnetic radiation., which all meet the demand to convert into civilian products.