Photovoltaic (pv) system is made up of the solar cell phalanx, battery, charge and discharge controller, inverter, ac distribution cabinets, automatic solar tracking system, automatic solar component dust removal system and other equipment. Its equipment is the function of each part: solar cells
photovoltaic system consists of solar array, battery pack, charge and discharge controller, inverter, ac distribution cabinets, automatic solar tracking system, automatic solar component dust removal system and other equipment. The functions of the parts of the equipment are: solar cells under the condition of light ( Either the sun or other light source of illumination) On both ends of the battery, battery absorb light energy, different charge accumulation, produce 'pv voltage', namely 'photovoltaic effect'. Under the action of the photovoltaic effect, produces electromotive force on both ends of the solar cell, convert light energy into electrical energy, is an energy conversion device. Solar cells are typically made from silicon, divided into monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells. The characteristics of raw materials: cell: use efficiency ( 16. More than 5%) Monocrystalline silicon solar encapsulation, ensure the solar panels have enough capacity. The thickness of the glass: 3. 2 mm low iron tempered suede glass ( Also known as the white glass) In the solar spectral response wavelength range ( 320 - 1100 nm) Light transmittance is greater than 91%, to more than 1200 nm infrared light with high reflectivity. Glass can resist the sun's ultraviolet radiation at the same time, the light transmittance is not reduced. EVA: high quality EVA film layer, thickness of 0. 78 mm, adding anti-uv agents, antioxidants and curing agent, used for solar battery sealant and connection with glass and thermoplastic polyurethane. It has high light transmittance and aging resistance. TPT: fluorine plastic thin film solar cell rear cover is white, can reflect sunlight and thus slightly improve the efficiency of the module. Because of its high infrared emissivity, it can also reduce the operating temperature of module, but also to improve the efficiency of the module. First of all, of course, this kind of fluorine plastic film is solar battery encapsulation materials needed for the ageing resistance, corrosion resistance, airtight etc. Basic requirements. Frame: used for aluminum alloy frame with high intensity, mechanical shock resistance ability. This is also a valuable part of the domestic solar power. Some users installed solar street light or solar array power generation system, hope to use them once and for all. However, it was found that less power, the light is not bright. I don't know what to do. And, of course, in addition to the quality of the product itself and the installation problem, this is mainly due to the panels dust too much or covered by snow in winter, photoelectric conversion rate lower, due to deficiency of charging and battery. After the installation of solar energy equipment, therefore, we should also organize regular staff all panel to conduct a comprehensive and detailed check of the power plant, the panel can be in good working condition for a long time running, thus ensuring the plant power, create more economic benefits. The maintenance of solar photovoltaic panels;