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Comparative analysis of the reliability of grid-connected photovoltaic power systems

  • Yang Wang
  • , Peng Zhang
  • , Wenyuan Li
  • , Nadim H. Kan'An
  • University of Connecticut
  • BC Hydro

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

25 Scopus citations

Abstract

This study compares the reliability performance of string inverter structure and central inverter structure for grid-tied solar photovoltaic (PV) systems. The impact of input power variation and ambient-conditions on failure rates of PV system components are quantified and incorporated in the reliability analysis. Aging failure in PV panels is also modeled to evaluate the life cycle reliability of both types of PV systems. Sensitivity analyses are extensively conducted to explore the impact of different factors on the performances of different PV systems. Test results on a practical 20 kW PV project are presented to demonstrate the effectiveness of the presented method.

Original languageEnglish
Title of host publication2012 IEEE Power and Energy Society General Meeting, PES 2012
DOIs
StatePublished - 2012
Event2012 IEEE Power and Energy Society General Meeting, PES 2012 - San Diego, CA, United States
Duration: Jul 22 2012Jul 26 2012

Publication series

NameIEEE Power and Energy Society General Meeting
ISSN (Print)1944-9925
ISSN (Electronic)1944-9933

Conference

Conference2012 IEEE Power and Energy Society General Meeting, PES 2012
Country/TerritoryUnited States
CitySan Diego, CA
Period07/22/1207/26/12

Keywords

  • central inverter
  • Photovoltaic system
  • reliability
  • sensitivity
  • state enumeration
  • string inverter

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