Designing solar arrays to account for reduced performance from self-shading

Jason Galtieri, Philip T Krein

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

Abstract

The goal of any solar array is to maximize energy production by increasing irradiance absorption and mitigating losses. In large-scale arrays, parallel rows of solar panels can shade adjacent rows, reducing production owing to effects known as self-shading and diffuse masking. For this work, the influence of row spacing and panel tilt angle on trade-offs between shading impact and irradiance capture is evaluated. A model that takes into account sub-module level mismatch is developed and can be applied to a wide range of geographic regions. Additionally, a method for simulating large arrays, which utilizes a lookup table of IV curves, is proposed. The table circumvents the tedious process of generating curves in real-time and allows fast power output calculations. With this method, simulation time is drastically reduced while introducing estimation error of 0.25%, as compared to full numerical approaches.

Original languageEnglish (US)
Title of host publication2015 IEEE Power and Energy Conference at Illinois, PECI 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479979493
DOIs
StatePublished - Mar 20 2015
Event2015 IEEE Power and Energy Conference at Illinois, PECI 2015 - Champaign, United States
Duration: Feb 20 2015Feb 21 2015

Publication series

Name2015 IEEE Power and Energy Conference at Illinois, PECI 2015

Other

Other2015 IEEE Power and Energy Conference at Illinois, PECI 2015
CountryUnited States
CityChampaign
Period2/20/152/21/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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    Galtieri, J., & Krein, P. T. (2015). Designing solar arrays to account for reduced performance from self-shading. In 2015 IEEE Power and Energy Conference at Illinois, PECI 2015 [7064935] (2015 IEEE Power and Energy Conference at Illinois, PECI 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PECI.2015.7064935