Design and Implementation of a Hybrid MPPT technique based on the Scan of the Power vs Voltage input characteristic of the inverter

Marco Balato, Daniele Gallo, Carmine Landi, Mario Luiso, Massimo Vitelli

Abstract

The adoption of a Hybrid MPPT (HMPPT) technique is mandatory in PV applications operating under mismatching conditions. It is called Hybrid because it is neither only Distributed (on the PV modules) nor only Centralized (on the inverter). In this paper it is shown how to properly optimize an HMPPT technique based on the periodic scan of the Power vs. Voltage characteristic at the input of the inverter in order to locate the optimal operating value, from the energetic efficiency point of view, of the bulk inverter voltage. Therefore, numerical simulations and experimental measurements on a reduced scale laboratory prototype are carried out to confirm the validity of the theoretical predictions.

Keywords

power measurement, photovoltaic, maximum power point tracking

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IMEKO-TC4-2013-157.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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