Design of a New Analog Circuit for Maximum Power Point Tracking of Photovoltaic Panels

This paper proposes a new analog technique to track the Maximum Power Point (MPP) of PV panels in PV system applications. This technique use classical and simple functions of electronic circuits. An off Grid PV system was considered to apply and validate the proposed technique. The whole circuit was implemented in circuit oriented simulator Proteus-ISIS. The obtained results have shown good efficiency of the proposed analog technique (more than 98.5%). The behavior of the proposed technique with regards to irradiation variations was described. The future of this work focuses the realization of a new specific integrated circuit of the MPPT controller.