Impact of meteorological variations on the lifetime of grid-connected PV inverters

Erick M.S. Brito, Allan Fagner Cupertino, Paula Diaz Reigosa, Yongheng Yang, Victor Flores Mendes, Heverton A. Pereira

Research output: Contribution to journalConference article in JournalResearchpeer-review

3 Citations (Scopus)

Abstract

In this paper a grid-connected single-phase PV inverter is employed as a study case in order to investigate the effects of different meteorological conditions on the reliability analysis. The lifetime evaluation of the power modules consisting of the PV inverter is evaluated, taking into account variations on the solar irradiance and ambient temperature but also including the PV panel thermal dynamics (i.e., thermal capacitance). The mission profiles are used as the input and then translated into the thermal loading of the power switch. The Bayerer's model and Palmgren-Miner's rule are used to calculate the life consumption (LC) and B10 lifetime. The results show that the increase in irradiance generates more energy. However it strongly reduces the system lifetime. Also, the thermal dynamic of the PV panel has important impact on the lifetime prediction.
Original languageEnglish
JournalMicroelectronics Reliability
Volume88-90
Pages (from-to)1019-1024
Number of pages6
ISSN0026-2714
DOIs
Publication statusPublished - Sep 2018
Event29th European Symposium on Reliability of Electron Devices, Failure Physics and Analysis - AKKC, Aalborg, Denmark
Duration: 1 Oct 20185 Oct 2018
Conference number: 29th
http://www.esref2018conf.org/

Conference

Conference29th European Symposium on Reliability of Electron Devices, Failure Physics and Analysis
Number29th
LocationAKKC
CountryDenmark
CityAalborg
Period01/10/201805/10/2018
Internet address

Keywords

  • Grid-connected PV inverters
  • Lifetime evaluaton
  • Meteorological variations

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