Solar power lighting system (single lamp control) has been gradually applied in some projects and some occasions, such as street lights, garden lights, lawn lights, etc. The development and application of the system has made a positive effect on energy saving and environmental protection.
Working principle of solar power lighting system
Working principle of centralized controllable solar power lighting system: under the irradiation of sunlight, the electric energy generated by solar photovoltaic cell modules can charge the battery through the system controller and the battery overcharge control port. The inverter, the grid switch, the grid and the switch are the connected parts of the system and the municipal power grid. In the special case of insufficient sunlight or insufficient battery power supply, the municipal power grid directly charges the battery. At the same time, the battery has surplus energy and can also be designed to supply power to the city grid, which has not been implemented.
The lamp group connection control port is to use the common single chip microcomputer or use other equipment with operation control function. The electric energy of the output port of the battery group is connected to the energy saving light source for power supply through the controller port of anti-overdischarge, overload and short circuit, and through the lamp group connection control port of the system controller and the constant voltage and constant current light source control port, so that the energy saving light source can change the brightness and color according to actual needs.
The basic function of solar power lighting system
The whole centralized controllable solar power lighting system has the following basic functions:
1, battery anti-overcharge, anti-reverse charge;
2, battery anti-over-release, anti-release;
3, battery short circuit, anti-reverse connection;
4, provide load function;
5. Provide system working status to users/operators;
6, control lighting change time change, color change, brightness change, etc.);
7, provide control interface backup and connect the control port function;
8, can provide the surplus electric energy of the whole system for auxiliary load consumption;
9. Connect with the municipal power grid;
10, lightning protection grounding protection function;
11, the control function of the system can be increased or decreased according to the actual lighting needs of customers;
12, control consumption current is less than 1% of the rated working current;
13, the control loop voltage drop is less than 5% of the system voltage.
