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Application of solar photovoltaic power generation system

Update Time:2012.09.17 News Sources:sunyosolar

Photovoltaic system is to convert solar energy into electrical energy generating system, is the use of photovoltaic effect.


Solar photovoltaic system consists of solar battery, solar controller, battery ( Group ) and solar tracking control system. If the output power of AC 220V or 110V, also need to configure the inverter. The functions of each part is:

( a ) solar panels: solar panel solar power system is the core part of the solar system, also is the highest value in the part. Its role is to the sun 's radiation is converted to electrical energy, or sent or stored in batteries, or to promote the work load. Solar panels on the quality and cost of the entire system will directly determine the quality and cost.

( two) solar controller: solar controller is used to control the working state of the whole system, and played a rechargeable battery protection, over discharge protection function. Place in a larger temperature difference, the controller should have qualified temperature compensation function. Other additional features such as a light-operated switch, time switch controller should be optional.

( three) battery: lead-acid batteries in general, small micro systems, can also be used nickel-hydrogen batteries, nickel cadmium batteries or lithium batteries. Its role is to be illuminated by a solar panel of electricity be stored, when need to release.

( four): Inverter on many occasions, the need to provide 220VAC, 110VAC AC power source. Due to the direct solar output is generally a 12VDC, 24VDC, 48VDC. In order to provide 220VAC electric power, need to be solar power system issued by the DC power into AC power, thus requiring the use of DC-AC inverter. In some cases, requiring the use of multiple voltage when the load is also used, such as 24VDC DC-DC inverter, the electric energy is converted into 5VDC electrical energy (note, not simple antihypertensive ).

Photovoltaic power generation system are the main parts of the solar battery, battery, controller and inverter.

Photovoltaic power generation system is divided into the independent solar photovoltaic power generation system and grid-connected solar photovoltaic power generation system.

Solar photovoltaic power generation system is divided into independent photovoltaic power generation system and photovoltaic grid-connected generation system:

1, independent photovoltaic power generation system also called off-grid PV power system. Mainly by the solar cell module, controller, storage battery, to AC power to the load, but also need to configure the AC inverter.

2, grid-connected photovoltaic power generation system is the solar components to produce a direct current by grid-connected inverter into accord with the requirement of the city power grid AC direct access to public power grid. Grid-connected photovoltaic power generation system with large-scale grid-connected photovoltaic power station are generally of national power, which is power can be directly transmitted to the power grid, a unified deployment to user power supply. But the power station of large investment, long construction period, large occupation area, there were no great development. The distributed small grid-connected photovoltaic system, especially the building integrated photovoltaic power generation system, because the small investment, quick construction, small occupation area, policy support and other advantages, is currently the mainstream of grid-connected photovoltaic power generation.

Dongguan City three Yu photovoltaic Limited is committed to solar photovoltaic connectors, junction box, a photovoltaic wire and photovoltaic connected components of the R & D and production, widely used in photovoltaic power plant, power grid, power generation, roof systems, household power supply system, solar mobile power, solar mobile phone battery, communication power supply, solar lighting (street, lawn lamp, garden lights and traffic lights ), solar energy and other fields, and formed by the product development, mold design, production to sales of all in one service, providing customers with high quality products, quality service.

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