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Solar Power System Jun 12, 2018

Solar Power System

The solar power generation system is composed of solar panels array, a solar controller, and battery (group). If you want the solar power system output power to be AC 220V or 110V, you need to configure the inverter.


Solar power generation systems are divided into off-grid power system, grid-connected power system, and distributed generation systems:

1. Off-grid power system is mainly composed of solar panels, controllers and storage batteries. If the output power supply is AC 220V or 110V, inverters need to be configured.

2. The grid-connected power system is that the direct current generated by the solar modules is directly connected to the public power grid after being converted into an alternating current that meets the requirements of the mains grid by the grid-connected inverter. The grid-connected power generation system has centralized large-scale grid-connected power stations, which are generally state-level power stations. The main feature is that the power generation can be directly delivered to the power grid, and the power grid can be 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. The decentralized 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 its advantages of small investment, fast construction, small floor space, and strong policy support.

3. Distributed power generation system, also known as decentralized power generation or distributed power supply, refers to the configuration of a small photovoltaic power generation system at or near the user site to meet the needs of specific users and support the existing distribution network. Economic operation, or both of these requirements.

The basic equipment of the distributed photovoltaic power generation system includes photovoltaic modules, solar mounting brackets, DC combiner boxes, DC power distribution cabinets, grid-connected inverters, AC power distribution cabinets, etc. In addition, power supply system monitoring devices and environmental monitoring Device. The operation mode is that under the condition of solar radiation, the solar modules array of the photovoltaic power generation system converts the electric energy converted by the solar energy into the DC power distribution cabinet through the DC combiner box, and is converted into the AC power supply by the grid-connected inverter. The building's own load, excess or insufficient power is regulated by connecting the grid.