Main Article Content
This paper presents the design of control system for maximum power point tracking in a DC-DC boost converter in solar power systems using fuzzy logic theory in MATLAB SIMULINK. The proposed technique utilizes the errors and the changes in errors of an input voltage obtained from the photovoltaic system. Such errors will be proceeded through the fuzzy control system. The output from the fuzzy control system will be in the form of pulse-width modulation that sets the maximum point of receiving power through the adjustment of the duty cycle. Simulations have been performed in MATLAB Simulink using Kyocera KD135GX-LP model. The voltage conversion condition is 12V-to-24V. The maximum power point tracking investigations were performed through the variation irradiation between 100 W/m2 to 1,000 W/m2 at fixed 30 oC. The variation of temperature between 15oC to 45oC at fixed irradiation of 500 W/m2 has also been investigated. The proposed approach has shown potentiality in maximum power point tracking.
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