Research and Application of PV Intelligent Control System of Sustainable Supply

Abstract

As the primary energy consumption and environmental pollution increasing seriously, green energy has been more and more got attention of researchers both at home and abroad, especially the study of solar occupies a large proportion in the development of green energy. The photovoltaic (PV) power supply system has many advantages, however, there are still problems, e.g. low voltage, low power, poor ability to resist disturbance. Around these problems, the paper designed a PV power supply control system could realize the uninterrupted power supply, including DC and AC supply. By the method of combining software with hardware, through the solar panel to the configured two pieces of battery could realize the function of fast and float charging, and the supply battery is changed by testing the battery power to load uninterrupted power supply. Moreover, when the output voltage of the solar panel is lower than the battery, the output voltage of solar panel is boosted by DC/DC circuit to make the solar panel at low pressures also to charge the battery, effectively solving the difficult solar energy in the weak power supply problem. Finally, the design of PV power supply control system not only could realize DC supply, and also AC power supply by SPWM method, which has good effect of power supply.