What is the working principle of solar street lights

Operation mechanism of solar power system:
During the day, the solar cell modules generate a certain electromotive force under light conditions, and the solar cell array voltage can meet the system input voltage requirements through the series and parallel connection of the modules. Use the charge and discharge controller to charge the battery again, and convert the light energy into electrical energy for storage. At night, the battery pack provides input power for the inverter. Through the function of the inverter, the DC power is converted into AC power, and the power is supplied to the power distribution cabinet through the switching action. The controller controls the discharge of the battery pack to ensure the normal use of the battery. The PV system should also have a certain load protection and lightning protection device to protect the overload operation of the system equipment and prevent lightning strikes, and maintain the safe use of the system equipment.

System principle: The working principle of the system is simple. The solar panel made by the photovoltaic effect principle receives solar radiation energy during the day, converts the energy into electrical output, and stores it in the battery through the charge and discharge controller. At night, when the illuminance gradually drops to 10lux Around, the open circuit voltage of the solar panel is about 4.5V. After the charge and discharge controller detects this voltage value, it discharges the lamp cap. After the battery is discharged for 8 hours, the charge and discharge controller starts and the battery discharge ends. The main function of the charge and discharge controller is to protect the battery.

Benefits of solar street lights:
LED solar street lights use solar photovoltaic cells to provide electricity. As a new type of green energy, solar energy is "not depleted, not depleted". Under the situation of alleviating the tension of conventional energy, making full use of solar energy is of positive significance.
The operation and maintenance costs of solar street lights are relatively low; solar street lights powered by solar energy, except for conversion to mains power supply in rainy days, incur little electricity costs, and operating costs are almost zero. The operation of the whole system has realized automatic control, without manual intervention, and almost no maintenance cost.
Solar street lights are simple and convenient to install. They don’t need to lay cables and other basic projects like ordinary street lights. They only need a base to fix them. All wiring and control parts are placed in the lamp holder to form a whole.