Energy improvements from subpanel DC-DC converters in PV arrays with distributed mismatch

Jason Galtieri, Philip T. Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mismatch in solar arrays is caused by singular sources or as a combination of multiple smaller effects which supplement one another. Subpanel dc-dc converters have demonstrated the ability to handle mismatch in photovoltaic (PV) strings regardless of the source. This work will investigate the impact on power production of varying degrees of mismatch spread throughout a PV array. A comparison is made between PV strings with dc-dc converters and conventional strings employing bypass diodes. When mismatch is widespread, the power output of strings with dc-dc converters tends to favor the mean maximum power point (MPP) of the PV elements. Power output of strings with bypass diodes tends to be pulled down by low power outliers.

Original languageEnglish (US)
Title of host publication2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3213-3218
Number of pages6
ISBN (Electronic)9781509027248
DOIs
StatePublished - Nov 18 2016
Event43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States
Duration: Jun 5 2016Jun 10 2016

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
Volume2016-November
ISSN (Print)0160-8371

Other

Other43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
CountryUnited States
CityPortland
Period6/5/166/10/16

Keywords

  • DC-DC converters
  • photovoltaic cells
  • solar power generation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Galtieri, J., & Krein, P. T. (2016). Energy improvements from subpanel DC-DC converters in PV arrays with distributed mismatch. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 (pp. 3213-3218). [7750259] (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2016-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2016.7750259