Shandong solar street lamps factory' 。 jschindo。 com】 Sharing: to fully analyze the solar power generation solar power key technology problem is phase of the new energy science and technology today, will be to solve the problem. The energy crisis. ; Environmental pollution; And; Sustainable development; Three problems, such as for us to use the new
solar street lamp manufacturers in shandong [ 。 jschindo。 com] Sharing: fully analyzed the key technical problems of solar power solar power is to present a kind of new energy technology, it will solve the problem; The energy crisis. ; Environmental pollution; And: sustainable development; These three questions put us into a use of new energy and new technology in the new era, there are also some core problems in the actual development. 1 1 solar resource data and evaluation. 1 solar energy resources solar radiation data can be obtained from county meteorological station or the national weather service. The data obtained from the bureau of meteorology is horizontal radiation data, including the level of total radiation, direct radiation and scattered radiation level. Solar energy resource data mainly includes: every month the sun total radiation ( Irradiance) Or monthly day average solar total radiation and radiation intensity. Associated with climate data mainly includes: the annual average temperature, the highest annual average temperature, annual mean minimum temperature, the longest continuous cloudy ( Including rainfall or snow) , the annual average wind speed, maximum wind speed, annual hail frequency sandstorm days and years. Among them, the sun on the value of the total radiation is very important. In addition, the data should be provided in the past 5 ~ 10 years the accumulation of data, to evaluate the effectiveness of the solar energy resources and climate data. 1. 2 solar energy resources evaluation of effectiveness of photovoltaic system design data stations should be used or the relevant departments to provide solar resource data, in some cases need to evaluate their effectiveness. First of all, when a particular site's solar energy resources data is incomplete or lack of years of accumulation, it is necessary to evaluate the effectiveness of the solar radiation and intensity. Second, although the local solar energy resource data is relatively intact, solar radiation conditions are relatively good, but the candidate site is located in the mountains or near, and obvious effects of solar radiation. In this case, it is necessary to study the candidate locations around the average data of adjacent area changes to assess the effectiveness of local solar energy resource data. Third, the data obtained from the meteorological department is level data, including level direct radiation and scatter radiation, to gain a level of total radiation data. However, in the practical application of solar photovoltaic power generation, in order to gain more power and need the clean battery module, fixed square array is usually a tilted, so it is necessary to calculate solar radiation on the inclined plane ( Is generally larger than that of horizontal plane radiation) 。 But the calculation process is very complicated, so people often use level data on the surface of the directly or use the experience coefficient method for simple conversion, it affected the accuracy of the calculation. Developed in recent years, some software, not only can easily solve the problem of these calculations, but also in its database to store a large amount of solar radiation in different areas of the data, some of the software also has the function of photovoltaic system analysis and design. Site selection and site assessment 2 2 photovoltaic system. 1 select photovoltaic system, should eliminate shadow effects solar cells depends on the sun to generate electricity. When the projection on the front panel for sun obscured, the power output characteristics of the square array, the severely affected, the small shadow on the panel will also make the affected performance greatly reduced. Therefore, in the process of design and installation of photovoltaic system, carefully identify the sun path, avoid shadows, to guarantee the power rating of phalanx, reduce power generation cost of pv system is very important.