A review of I–V tracers for photovoltaic modules: Topologies and challenges

José Ignacio Morales-Aragonés, Miguel Dávila-Sacoto, Luis G. González, Víctor Alonso-Gómez, Sara Gallardo-Saavedra, Luis Hernández-Callejo

Research output: Contribution to journalReview articlepeer-review

24 Scopus citations

Abstract

Current–voltage (I–V) curve tracers are used for measuring voltage and current in pho-tovoltaic (PV) modules. I–V curves allow identifying certain faults in the photovoltaic module, as well as quantifying the power performance of the device. I–V curve tracers are present in different topologies and configurations, by means of rheostats, capacitive loads, electronic loads, transistors, or by means of DC–DC converters. This article focuses on presenting all these configurations. The paper shows the electrical parameters to which the electronic elements of the equipment are exposed using LTSpice, facilitating the appropriate topology selection. Additionally, a comparison has been included between the different I–V tracers’ topologies, analyzing their advantages and disadvantages, considering different factors such as their flexibility, modularity, cost, precision, speed or rating, as well as the characteristics of the different DC–DC converters.

Original languageEnglish
Article number1283
JournalElectronics (Switzerland)
Volume10
Issue number11
DOIs
StatePublished - 1 Jun 2021
Externally publishedYes

Keywords

  • Bipolar power amplifier tracer
  • Capacitive charge tracer
  • DC–DC converter plotter
  • Electronic load tracer
  • Four-quadrant power source tracer
  • I–V tracer
  • Variable resistor tracer

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