| Summary: | 碩士 === 大同大學 === 電機工程學系(所) === 97 === The purpose of this thesis is to design an active solar panel dual-axis suntracking system with maximum power point tracking fuzzy controller. The tracking system tracks the maximum solar power point no matter what the environmental condition it is and orients the solar panel toward the Sun to enhance the efficiency of thephotovoltaic generation system. First, the operating points of the PV panel are adjusted by a boost converter. The PV voltage and current are measured in real time, and used to estimate the system parameters in the power-voltage polynomial equation and to identify the maximum power. Meanwhile, four light sensors sense one current respectively, which represent the illumination at the time. Inputting the maximum power and four currents to the two fuzzy controllers for dual-axis tracking system, the rotated angles will be got to make the mechanism rotate to the appropriate position. Through the sun tracking method, the PV panel will face the Sun directly at all time. Finally, the simulation results using Matlab verify the effectiveness of the proposed controller.
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