Effect of spatial temperature uniformity on outdoor photovoltaic module performance characterization

Neelesh Umachandran, Govindasamy Tamizhmani

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

Abstract

Temperature uniformity in a photovoltaic (PV) module is critical to accurately measure module performance parameters and temperature coefficients. In the case of indoor flash solar simulators, a uniform temperature among all the cells within a test module is maintained using a specialized thermal setup or an air conditioned environment. However, maintaining uniform module temperature in all the cells of a module under prevailing uncontrolled outdoor field conditions on clear sunny days has been a challenge. This study quantitatively determines the extent of temperature non-uniformity, and the influence of 'spatial' temperature distribution on the accuracy of module performance parameters and temperature coefficients. An experimental approach to improve temperature uniformity under prevailing field conditions is also presented to obtain outdoor performance data and to possibly improve field performance with less influence of temperature variability. Results indicate that better temperature uniformity and more accurate performance data can be obtained by thermally insulating the inner and outer surfaces of the module frame.

Original languageEnglish (US)
Title of host publication2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-7
Number of pages7
ISBN (Electronic)9781509056057
DOIs
StatePublished - May 25 2018
Event44th IEEE Photovoltaic Specialist Conference, PVSC 2017 - Washington, United States
Duration: Jun 25 2017Jun 30 2017

Other

Other44th IEEE Photovoltaic Specialist Conference, PVSC 2017
CountryUnited States
CityWashington
Period6/25/176/30/17

Keywords

  • Insulation
  • Outdoor
  • Performance
  • Temperature
  • Uniformity

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Umachandran, N., & Tamizhmani, G. (2018). Effect of spatial temperature uniformity on outdoor photovoltaic module performance characterization. In 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017 (pp. 1-7). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2017.8366638