Abstract
This paper presents the development of photovoltaic (PV) dc/dc converter to operate power LED with an improved MPPT technique. The proposed MPPT technique is the combination and integration of Perturb and Observe (P&O) and fuzzy logic control (FLC) to form a single technique, named as adaptive P&O-fuzzy control MPPT. The proposed MPPT is aimed to enhance MPPT performance and it is compared with conventional P&O and FLC MPPT techniques respectively. Laboratory prototype was developed, and the setup includes PV test panel of Kyocera KD210GH-2PU, boost dc/dc converter, and power LED as a load. Behavior of the adaptive P&O-fuzzy MPPT was tested and compared with two mentioned techniques. The proposed MPPT shows the best performance in achieving fast time response.
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