A current-based simple analog MPPT circuit for PV systems

Authors: BÜLENT BÜYÜKGÜZEL, MURAT AKSOY

Abstract: A new single pilot-sensor maximum power point tracking (MPPT) system, consisting of a buck type DC/DC converter, was developed. It is controlled by an analog-based unit. The main difference between the proposed MPPT system and other systems is that the short circuit current of the pilot-PV module in our system is used to control the DC/DC converter. The circuit of the proposed system does not utilize an expensive digital signal processor nor a microcontroller; hence, the cost and the complexity of the system are reduced.

Keywords: Maximum power point tracking, current-based analog MPPT, photovoltaic

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