Photovoltaic power system

I believe that we all have some understanding of solar photovoltaic power generation, now Guangxi photovoltaic power generation xiaobian take you to learn under the transmission mode of solar photovoltaic power generation, which can let it play its advantages, I hope to bring convenience to you, in order to better use. Solar photovoltaic power generation can be divided into independent photovoltaic power generation, grid-connected photovoltaic power generation and distributed photovoltaic power generation. The following is a detailed introduction:

Independent photovoltaic power generation, independent photovoltaic power generation system is also called off-grid photovoltaic power generation system. It is mainly composed of solar cell module, controller and battery, and ac inverter is needed to supply power for AC load.

Grid-connected photovoltaic power generation, grid-connected photovoltaic power generation system is the direct current generated by solar panels converted into alternating current that meets the requirements of the municipal power grid after being directly connected to the public power grid. Grid-connected photovoltaic power generation system has centralized large-scale grid-connected photovoltaic power station, which is generally a large power station. Its main feature is that the generated power can be directly transmitted to the power grid, and the power grid can uniformly allocate power to users. However, this kind of power station is relatively difficult to develop because of its large investment, long construction cycle and large floor space. Distributed small-scale grid-connected photovoltaic systems, especially integrated photovoltaic building power generation systems, are the mainstream of grid-connected photovoltaic power generation due to their advantages such as small investment, fast construction, small floor space and great policy support.

Distributed photovoltaic power generation, or distributed photovoltaic power generation system, also known as distributed generation or distributed power supply, refers to a small photovoltaic power generation power supply system configured on or near the user site to meet the needs of specific users, support the economic operation of the existing distribution network, or meet the requirements of both aspects.

The basic equipment of distributed photovoltaic power generation system includes photovoltaic cell modules, photovoltaic array supports, DC converters, DC distribution cabinets, grid-connected inverters, AC distribution cabinets and other equipment, as well as power supply system monitoring devices and environmental monitoring devices. Its operation mode is in the solar radiation conditions, photovoltaic power generation system of solar cell module array to convert solar energy output power, a dc bus concentrated into dc power distribution cabinet, by the grid inverter inverter into alternating current supply of building their own load, excess or shortage of electricity through the grid to adjust.