Solar Led Lights Garden

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3. Status of photovoltaic power research
Research on the photovoltaic power system including the related development of solar cells, inverters, controllers and so on. In recent years, research has focused on the solar cell solar cell materials research and localization of its research institutes, mainly in universities and research institutes, such as the Beijing Solar Energy Research Institute, Ministry of Information Industry No. 18 Research Institute, Shanghai 811 Institute, Institute of Semiconductors , Shanghai Jiaotong University, Sichuan University, and so on.
Since 2005, the photovoltaic industry, the rapid development, quality and production increased rapidly, in 2008 PV module output ranks first in the world, with the development of thin film solar cells and silicon material solutions, the rapid decline in prices, created favorable for large-scale applications condition. Research and development capabilities of domestic enterprises increased rapidly, more than alone or in Combination mode to establish a research center [1].
Solar cells are an important part of photovoltaic power generation system, the package material EVA film PVF composite film modified, screen printing paste localization and other research have been carried out. With the gradual maturity of the solar cell, with the support of storage products - battery development is also beginning to attract attention, but the market still lacks full battery products meet the following requirements:
Strong resistance to overcharge and over discharge capacity;
As high energy density;
Maintenance is simple, no water;
No mist overflow, without isolating place;
Figure 2-2 Structure of solar LED street light 1. Solar panels Solar cells are made of semiconductor materials, these materials are mainly crystalline silicon. At present, solar cells have monocrystalline silicon battery, polysilicon battery, amorphous silicon thin film solar cells. 2. Light source in the choice of light source often need to take into account the high light efficiency, energy saving, because the solar panel light conversion rate is limited, and in the case of continuous rainfall is often continued, the use of energy-saving light source is the key. 3. Battery battery is the power source of solar lights, in the choice of solar street lights when the battery, to consider the life of solar cells, storage capacity and battery size. 4. Lighthouse structure Lighthouse is the focus of solar street design, because the structure of the lighthouse is very important, it is necessary to express the style of lighting, but also bear all the other parts of a reasonable allocation in one role. Lighthouse, including lamp and poles two parts.