| Summary: | 碩士 === 國立中正大學 === 電機工程所 === 98 === Recently, photovoltaic (PV) systems attract a lot of, in order to more effectively extract solar energy from PV array, the thesis proposes a regulated perturb and observe algorithm to realize maximum power point tracking of PV systems. This algorithm can improve disadvantages of constant perturbation step in perturb and observe algorithm, such as power loss and longer tracking time, by sensing conditions of PV array to adjust perturb step and perturb time, so that it can not only reduce the loss of perturbation around the maximum power point, but also increase the system response. The proposed circuit is controlled with a microcontroller (dsPIC30F2020) to realize the functions of maximum power point tracking and protections. Finally, the 1kW full-bridge converter was implemented to verify its feasibility.
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