Single Sensor MPPT Algorithm for Multiple Solar Panels Configurations

Abstract

This paper proposes a method for extracting power from several solar panel modules with different characteristics using one single current sensor. This method can prove useful to reduce the board size and to increase the variety of controllers (microcontrollers or FPGAs) that are suitable for that application.

Granular control of photovoltaic arrays by means of a multi‐output Maximum Power Point Tracking algorithm

“…The choice of connecting the dc/dc output ports in series, thus imposing the same output current for all the converters, allows to avoid high voltage boosting factors, from the low voltage of the PV modules to the high voltage of the dc bus. Figure shows the architecture already discussed in considering the parallel connection of the output ports of the dc/dc converters, which can be used if the PV generators are PV strings. This paper discusses, in Section 5, the parallel case by means of an experimental example to validate the design guidelines developed in Section 3.…”

“…In , an approach which is similar to the one proposed in this paper was introduced. The conceptual description of the new MPPT method was given, and some simulations were carried out by using heuristic values for the MPPT controller parameters, which are the amplitude and frequency 1/ T a of the perturbations imposed by the MPPT algorithm.…”