Abstract

This paper describes a novel Maxim Power Point Tracking (MPPT) control for Photovoltaic Cells. The proposed control strategy uses a power monitor at the Solar Cell out-port. The proposed scheme locates the maximum power by estimating the measured power and corresponding first derivative. The continuous power estimation allows a Pulse Width Modulation circuit to control the switching of a step-up DC-DC converter, setting the solar cell in an average maximum power operation. The manuscript describes the control laws and electronic circuit implementation, exhibiting an improvement in voltage ripple compared to state-of-the-art solutions.

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