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SYSTEM FOR PROGRAMMING APPLICATION FOR LOW COST SOLUTION RUNNING MAXIMUM POWER POINT TRACKING BASED ON EIGHT BIT MICROCONTROLLER IN SOLAR PHOTOVOLTAIC
SYSTEM FOR PROGRAMMING APPLICATION FOR LOW COST SOLUTION RUNNING MAXIMUM POWER POINT TRACKING BASED ON EIGHT BIT MICROCONTROLLER IN SOLAR PHOTOVOLTAIC
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机译：太阳能光伏系统基于八位微控制器的低成本解决方案运行最大功率点跟踪编程系统
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摘要
Solar photovoltaic is an elegant technology which produces electricity from sunlight without moving parts. In a photovoltaic cell, sunlight detaches electrons from their host silicon atoms. Tiny packets of light energy called photons are captured by electrons, and impart enough energy to kick the electron free of its host atom. Near the upper surface of the cell is a one way membrane� called a pn-junction. The pn-junction is formed by diffusing tiny quantities of phosphorus to a depth of about one micro-meter into a thin wafer of silicon. When a free electron crosses the pn-junction it cannot easily return, causing a negative voltage to appear on the surface facing the sun (and a positive voltage on the rear surface). The front and rear surfaces can be connected together via an external circuit in order to extract current, voltage and power from the solar cell. Solar cells are packaged behind glass to form photovoltaic modules, which have typical service lives of 20 to 40 years.
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