What Components Are In A Solar Power Generator System?
Author: Source: Datetime: 2016-09-12 13:32:29
Type solar cell module
A wide range of solar cell modules, solar power battery sheet according to the type can be divided into: monocrystalline modules, polycrystalline silicon components, gallium arsenide components, amorphous silicon thin film batteries and other components, wherein the crystalline silicon (including monocrystalline silicon and polycrystalline silicon) battery pack about 80% ~ 90% of the market. Packaging materials and technology are not the same, divided into: epoxy sealed, laminated packaging, silica gel packaging. Currently most used is a laminate package, because this package is suitable for large-area solar cell industrial packaging. Similar solar cell module according to peak power, rated voltage can be divided into different types. Solar powe generation of a single component from a fraction of a watt to several hundred watts, voltage ranging from zero volts to a few tens of volts. Using more 9 or 12 strings 4 string 3 Total 36 series, rated voltage of 12V components.
The following are a few solar cell module with a different packaging materials and processes of preparation. Monocrystalline silicon solar cell module shown in Figure 3-1 is used by the US company AP monocrystalline silicon cells 36 in series, the laminated packaging them. Peak power 75WP, cover material on the assembly of low-iron tempered glass, aluminum alloy frame surrounding the use of fixed, long-life of such components (about 25 years), generally used for all types of photovoltaic power plants. Compared with the single crystal silicon components, polycrystalline components a little difference in appearance, the performance of the lifePo4 batteries surface color is inconsistent, as shown in Figure 3-2 polysilicon solar cell component epoxy seal. The assembly which is made of 8 small pieces of polycrystalline silicon cells in series, the peak power of about 0.35WP, mainly used in solar lawn, toys, gifts and other small solar cell components. Low temperature deposition of amorphous silicon may be deposited on a flexible substrate made of bendable lifePo4 battery pack, good low-light performance effects of such an assembly, but the efficiency is relatively low, and fast decay, suitable for indoor or portable photovoltaic systems .
In recent years, with domestic and foreign BIPV promotion, each component packaging manufacturers have introduced the double glass solar lifePo4 battery module. Compared with ordinary component architecture, use double-sided glass assembly glass instead TPE (or TPT) as a component of the backing material. Because this component has aesthetic advantages of transparent light in photovoltaic architecture is widely used, such as: solar smart windows, solar and photovoltaic pavilion building roof, photovoltaic glass curtain wall. Combined with the building is a major trend in the development of solar power generator. Thus, the double glass assembly is expected commercial market will be further expanded.
Sealed with epoxy glue laminated packaging components, solar battery are sticking firmly to live, easy disassembly and replacement. Thus, the components often because of broken or single cell electrode fall off causing the entire component failure, can not repair. Currently in Europe, Japan began to try recyclable packaging solar cell module for portable solar power generator. Wherein the hollow glass encapsulation mode is optimistic about a lot of manufacturers. Hollow glass is made of two glass composition, glass-filled hollow tubes with internal desiccant isolation, with people filling the hollow portion inch inert gas, with butyl rubber, polysulfide rubber or plastic structure into line sealed. The ligated solar cell is placed between the hollow glass, the back of the lifePo4 battery close to the glass surface, fixed by a detachable silicone. This package does not use EVA, an air layer exists between the upper surface of the lifePo4 battery and the cover glass, glass refractive index difference between the gas and the large sun shines human cell surface by the interface reflection more on the inner surface of the cover glass It should be anti-reflective treatment.
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