Principle of solar panel power generation:
Solar panels are devices that directly or indirectly convert solar radiation energy into electrical energy through photoelectric effect or photochemical effect by absorbing sunlight. The main material of most solar panels is "silicon". Solar panels are solar power generation systems and solar energy. The core part of the lamp, the function of the solar panel is to convert the light energy of the solar energy into electric energy, and then store the direct current in the storage battery. The conversion rate and service life of the solar cell are important factors that determine whether the solar cell has the value of use.
Application of solar panels in power generation systems:
The home grid-connected solar power system uses solar panels to absorb solar resources to generate low-voltage DC power (DC24V/CDC48V), and then uses grid-connected inverters to convert the low-voltage DC power (DC24V/DC48V) generated by the solar panels to meet the requirements of the mains grid After alternating current (AC220V/AC380V), it is directly connected to the national public grid. The electricity generated by the solar energy system of household users is calculated through the on-grid electricity meter and sold to the State Grid. The on-grid electricity price is in accordance with relevant national policies. Household users then purchase electricity from the State Grid for household use, and the electricity purchased from the State Grid is calculated by the off-grid meter. That is to say, the online and offline electricity will be settled separately, and the electricity price will follow the relevant national policies.
The home grid-connected solar power generation system is mainly composed of solar panels, lightning protection combiner boxes, grid-connected inverters and mounting brackets. The solar panels of the household solar power generation system are generally installed on the roof of their own buildings or in the surrounding open areas, covering an area of about 10 square meters/KW. The grid-connected inverter is placed in a dry and ventilated place indoors. The home grid-connected solar power generation system is also called distributed photovoltaic power generation due to the scattered installation locations.
Off-grid solar photovoltaic power generation refers to a power generation method in which solar photovoltaic power generation is not connected to the power grid. The typical feature is that batteries are needed to store the energy used at night. Off-grid solar photovoltaic power generation is mainly used for civilian purposes in remote villages, pastoral areas, islands, plateaus, and deserts to provide basic household electricity for lighting, receiving television, and listening to radio; in the industrial area, it mainly uses communications and satellites. Radio and television relay stations, solar water pumps, navigation lights, cathodic protection of oil and gas pipelines, meteorological stations, highways and border posts, etc. provide power. In areas with wind power and small hydropower, hybrid power generation systems, such as wind power, Solar power generation supplementary light system, etc.
Features of Green Power Solar Panel:
Adopt high-efficiency (polycrystalline silicon above 17.5%, monocrystalline silicon above 19%) imported A-level solar chip packaging to ensure sufficient power generation from solar panels.
Using low-iron tempered suede glass with a thickness of 3.2mm, the light transmittance is over 97% in the wavelength range of the solar cell's spectral response (320-1100nm), and it has a high reflectivity for red-infrared light greater than 1200nm. This glass is able to withstand the sun's ultraviolet radiation, and the light transmittance will not decrease.
A high-quality EVA film layer with a thickness of 0.78 mm added with anti-ultraviolet agent, antioxidant and curing agent is used as the connecting agent between the sealing agent of the solar cell sheet and the glass and TPT.
The back cover of the solar cell, a fluorine plastic film, is white, which reflects sunlight, so the efficiency of the module is slightly improved, and because of its higher infrared emissivity, it can also reduce the working temperature of the module. Conducive to improving the efficiency of components. Of course, this fluoroplastic film firstly has the basic requirements of aging resistance, corrosion resistance, and gas impermeability required by solar cell packaging materials.
The aluminum alloy frame used has high strength and strong resistance to mechanical impact. Anti-oxidation, anti-corrosion, good protection of laminated components, play a certain role of sealing and supporting