What is a standard solar power system?

2021-09-07

　The solar power generation system is composed of solar battery pack, solar controller and storage battery (group). If you want the output power of the solar power system to be AC 220V or 110V, you also need to configure an inverter.
Solar power generation systems are divided into off-grid power generation systems, grid-connected power generation systems and distributed power generation systems:
　　 1. The off-grid power generation system is mainly composed of solar cell components, controllers, and batteries. If the output power is AC 220V or 110V, an inverter is also required.
　　2. The grid-connected power generation system is that the direct current generated by solar modules is converted into alternating current that meets the requirements of the mains power grid by the grid-connected inverter and then directly connected to the public grid. Grid-connected power generation systems have centralized large-scale grid-connected power stations, which are generally national-level power stations. The main feature is that the generated energy is directly transmitted to the grid, and the grid is uniformly deployed to supply power to users. However, this kind of power station has a large investment, a long construction period, and a large area, and it has not developed much yet. The distributed small-scale grid-connected power generation system, especially the photovoltaic building integrated power generation system, is the mainstream of grid-connected power generation due to the advantages of small investment, fast construction, small footprint, and large policy support.

3. Distributed power generation system, also known as distributed power generation or distributed energy supply, refers to the configuration of a smaller photovoltaic power supply system at the user site or close to the power site to meet the needs of specific users and support the existing distribution network Economic operation, or meet the requirements of these two aspects at the same time.
The basic equipment of a distributed photovoltaic power generation system includes photovoltaic cell components, photovoltaic square array brackets, DC combiner boxes, DC power distribution cabinets, grid-connected inverters, AC power distribution cabinets and other equipment, as well as power supply system monitoring devices and environmental monitoring Device. Its operation mode is that under the condition of solar radiation, the solar cell module array of the photovoltaic power generation system converts the output electric energy from the solar energy, and sends it to the DC distribution cabinet through the DC combiner box, and is inverted by the grid-connected inverter into AC power supply. The building's own load, surplus or insufficient power is adjusted by connecting to the grid.