A Buck-Boost Photovoltaic Energy Harvester Employing Adaptive Power-Scalable MPPT Control Achieving >98% MPPT Efficiency and >82% Power Conversion Efficiency Across a 100,000× Dynamic Range

Y. Liu, H. Zhang, M. Becermiş, Jieyu Liao, M. Dandekar, K.A.A. Makinwa, Q. Fan

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

This paper presents a photovoltaic energy harvesting (PVEH) system achieving both high Maximum Power Point Tracking (MPPT) efficiency ($\eta_{\text {MPPT }}$) and power conversion efficiency ($\left.\eta_{\text {CONV }}\right)$ across a wide input power dynamic range (DR), employing a direct input power-to-digital converter (PDC) and an adaptive power-scalable MPPT scheme. The proposed PVEH achieves $>98 \%$ (with a peak of 99.9 %) $\eta_{\text {MPPT }}$ across a $100,000 \times$ DR $(10 \mu ~\mathrm{W}$ to 1 W), representing a $10 \times$ improvement over the state-of-the-art, as well as a competitive $\eta_{\text{CONV}}$ of $>82 \%$ (with a peak of $\mathbf{9 2 \%}$) across the same DR.
Original languageEnglish
Title of host publicationProceeding of the 2025 IEEE European Solid-State Electronics Research Conference (ESSERC)
PublisherIEEE
Pages69-72
Number of pages4
ISBN (Electronic)979-8-3315-2539-2
ISBN (Print)979-8-3315-2540-8
DOIs
Publication statusPublished - 2025
Event2025 IEEE European Solid-State Electronics Research Conference (ESSERC) - Munich, Germany
Duration: 8 Sept 202511 Sept 2025

Conference

Conference2025 IEEE European Solid-State Electronics Research Conference (ESSERC)
Country/TerritoryGermany
CityMunich
Period8/09/2511/09/25

Bibliographical note

Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Maximum power point trackers
  • Photovoltaic systems
  • Adaptive systems
  • Power demand
  • Noise
  • Europe
  • Dynamic range
  • Power conversion
  • Internet of Things
  • Energy harvesting

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