FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells

This work proposes and experimentally characterizes a low-power circuit to track the maximum power point (MPP) of submilliwatt photovoltaic (PV) cells intended for indoor applications. The circuit relies on a low-power conventional indirect tracking technique: the fractional open circuit voltage (FO...

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Main Authors: Marc Azlor, Eduard Ferré, Manel Gasulla, Ferran Reverter
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/97/1/99
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author Marc Azlor
Eduard Ferré
Manel Gasulla
Ferran Reverter
author_facet Marc Azlor
Eduard Ferré
Manel Gasulla
Ferran Reverter
author_sort Marc Azlor
collection DOAJ
description This work proposes and experimentally characterizes a low-power circuit to track the maximum power point (MPP) of submilliwatt photovoltaic (PV) cells intended for indoor applications. The circuit relies on a low-power conventional indirect tracking technique: the fractional open circuit voltage (FOCV). The experimental results presented herein show that power losses due to the tracking inaccuracy of the FOCV technique are much lower (at least a factor of 10) than those due to the ensuing micropower DC/DC converter. Accordingly, the application of more accurate yet more power-demanding tracking techniques seems unnecessary in such scenarios, since they could incur even higher power losses.
format Article
id doaj-art-f3d5557f1f9b4870872995085f837ed9
institution Kabale University
issn 2504-3900
language English
publishDate 2024-03-01
publisher MDPI AG
record_format Article
series Proceedings
spelling doaj-art-f3d5557f1f9b4870872995085f837ed92024-12-27T14:48:48ZengMDPI AGProceedings2504-39002024-03-019719910.3390/proceedings2024097099FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV CellsMarc Azlor0Eduard Ferré1Manel Gasulla2Ferran Reverter3Department of Electronic Engineering, Universitat Politècnica de Catalunya—BarcelonaTech, 08860 Castelldefels, SpainDepartment of Electronic Engineering, Universitat Politècnica de Catalunya—BarcelonaTech, 08860 Castelldefels, SpainDepartment of Electronic Engineering, Universitat Politècnica de Catalunya—BarcelonaTech, 08860 Castelldefels, SpainDepartment of Electronic Engineering, Universitat Politècnica de Catalunya—BarcelonaTech, 08860 Castelldefels, SpainThis work proposes and experimentally characterizes a low-power circuit to track the maximum power point (MPP) of submilliwatt photovoltaic (PV) cells intended for indoor applications. The circuit relies on a low-power conventional indirect tracking technique: the fractional open circuit voltage (FOCV). The experimental results presented herein show that power losses due to the tracking inaccuracy of the FOCV technique are much lower (at least a factor of 10) than those due to the ensuing micropower DC/DC converter. Accordingly, the application of more accurate yet more power-demanding tracking techniques seems unnecessary in such scenarios, since they could incur even higher power losses.https://www.mdpi.com/2504-3900/97/1/99autonomous sensorsenergy harvestingindoor applicationsMPPTPV cells
spellingShingle Marc Azlor
Eduard Ferré
Manel Gasulla
Ferran Reverter
FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
Proceedings
autonomous sensors
energy harvesting
indoor applications
MPPT
PV cells
title FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
title_full FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
title_fullStr FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
title_full_unstemmed FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
title_short FOCV-MPPT Power Management Unit for Submilliwatt Indoor PV Cells
title_sort focv mppt power management unit for submilliwatt indoor pv cells
topic autonomous sensors
energy harvesting
indoor applications
MPPT
PV cells
url https://www.mdpi.com/2504-3900/97/1/99
work_keys_str_mv AT marcazlor focvmpptpowermanagementunitforsubmilliwattindoorpvcells
AT eduardferre focvmpptpowermanagementunitforsubmilliwattindoorpvcells
AT manelgasulla focvmpptpowermanagementunitforsubmilliwattindoorpvcells
AT ferranreverter focvmpptpowermanagementunitforsubmilliwattindoorpvcells