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中文摘要：
研究了光伏发电和最大功率点跟踪的基本原理及特性，并基于MPPT原理的控制思想，提出了一种新的太阳光跟踪方式用来提高光伏发电的效率。首先建立了用模糊控制算法实现的太阳光跟踪系统，仿真验证了方案的可行性；然后采用Cyclonell 2C70FPGA为研究开发平台，搭建了以步进电动机等为主的执行机构，实现了该智能型太阳光跟踪系统的功能，该系统对提高光伏发电的太阳能利用率具有重要意义和应用价值。
英文摘要：
Basic principles and characteristics of the photovoltaic energy as well as the maximum power point tracking （MPPT） were studied. Based on the MPPT principle,a new control method of solar tracking was put forward,to improve the efficiency of photovoltaic power generation. At first, a solar tracking system based on fuzzy control algorithm was built and simulated. With the help of the Matlab software and the feasibility of the program was verified. Then using Ahera Company＇s Cyclonell 2C70 FPGA as the processor, stepper motor as executive mechanism, the intelligent sun tracking system was realized, having important meaning and application value to improve the utilization of solar energy.
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