What is a solar power generation system?
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 supply is AC 220V or 110V, an inverter is also required.
2. The grid-connected power generation system means that the DC power generated by the solar modules is converted into AC power that meets the requirements of the municipal power grid through a grid-connected inverter and then directly connected to the public grid. Grid-connected power generation systems include centralized large-scale grid-connected power stations, which are generally national-level power stations. The main feature is to directly transmit the generated energy to the power grid, and the power grid uniformly distributes power to users. However, this kind of power station requires large investment, long construction period, and covers a large area, so it has not developed much yet. Distributed small-scale grid-connected power generation systems, especially photovoltaic building-integrated power generation systems, are the mainstream of grid-connected power generation due to their advantages of small investment, fast construction, small footprint, and strong policy support.
3. Distributed power generation system, also known as distributed power generation or distributed energy supply, refers to the configuration of smaller photovoltaic power supply systems at the user site or close to the power consumption site to meet the needs of specific users and support the existing distribution network. Economic operation, or both.
The basic equipment of the distributed photovoltaic power generation system includes photovoltaic cell components, photovoltaic array brackets, DC combiner boxes, DC distribution cabinets, grid-connected inverters, AC 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 solar energy into output and centrally sends it to the DC distribution cabinet through the DC combiner box, and is inverted by the grid-connected inverter into AC power for supply. The building's own load, excess or insufficient power is regulated by connecting to the power grid.
1. The off-grid power generation system is mainly composed of solar cell components, controllers, and batteries. If the output power supply is AC 220V or 110V, an inverter is also required.
2. The grid-connected power generation system means that the DC power generated by the solar modules is converted into AC power that meets the requirements of the municipal power grid through a grid-connected inverter and then directly connected to the public grid. Grid-connected power generation systems include centralized large-scale grid-connected power stations, which are generally national-level power stations. The main feature is to directly transmit the generated energy to the power grid, and the power grid uniformly distributes power to users. However, this kind of power station requires large investment, long construction period, and covers a large area, so it has not developed much yet. Distributed small-scale grid-connected power generation systems, especially photovoltaic building-integrated power generation systems, are the mainstream of grid-connected power generation due to their advantages of small investment, fast construction, small footprint, and strong policy support.
3. Distributed power generation system, also known as distributed power generation or distributed energy supply, refers to the configuration of smaller photovoltaic power supply systems at the user site or close to the power consumption site to meet the needs of specific users and support the existing distribution network. Economic operation, or both.
The basic equipment of the distributed photovoltaic power generation system includes photovoltaic cell components, photovoltaic array brackets, DC combiner boxes, DC distribution cabinets, grid-connected inverters, AC 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 solar energy into output and centrally sends it to the DC distribution cabinet through the DC combiner box, and is inverted by the grid-connected inverter into AC power for supply. The building's own load, excess or insufficient power is regulated by connecting to the power grid.