What is a solar photovoltaic system?

Solar photovoltaic(PV)system is a power generation system that uses the photovoltaic effect of solar cells to directly convert solar radiation into electric energy. Photovoltaic system for short. Working principle: During the day, under the illumination condition, the solar cell modules generate a certain electromotive force, and the solar cell array is formed through the series-parallel connection of the modules, so that the array voltage can meet the requirements of the system input voltage. Then, the battery is charged by the charge-discharge controller, and the electric energy converted from light energy is stored. In the evening, the battery pack provides input power for the inverter, and through the function of the inverter, the DC power is converted into AC power, which is transmitted to the power distribution cabinet, and the switching function of the power distribution cabinet supplies power.

The discharge of the battery is controlled by the controller to ensure the normal use of the battery. The photovoltaic power station system should also have limited load protection and lightning protection devices to protect the system equipment from overload operation and lightning strike, and maintain the safe use of the system equipment.

The photovoltaic system is composed of: solar cell array: storage battery for receiving sunlight and converting it into electric energy; storage electric energy charge and discharge controller; intelligent overcharge and overdischarge protection inverter; direct current inversion into alternating current.