Identification of Partial Shading in Photovoltaic Arrays Using Optimal Sensor Placement Schemes

Jieming Ma, Ziqiang Bi, Ka Lok Man, Huan Dai, Zhentian Wu

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

8 Citations (Scopus)

Abstract

A photovoltaic (PV) plant is normally built in a fixed series-parallel configuration and its power-voltage characteristics often get complex with multiple peaks under partial shading scenarios. Therefore, identification of partial shading is important for monitoring and invoking maximum power pint estimation. This paper proposes a back-propagation neural network (BPNN) based partial shading identification method which locates shaded modules by using measured voltage data. Optimal sensor placement schemes are introduced to decrease the number of utilized voltage sensors, and meanwhile still keep a high identification performance. Experiments are conducted to evaluate the accuracy and effectiveness of the proposed identification method.

Original languageEnglish
Title of host publication7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages458-462
Number of pages5
ISBN (Electronic)9781538659823
DOIs
Publication statusPublished - 6 Dec 2018
Event7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018 - Paris, France
Duration: 14 Oct 201817 Oct 2018

Publication series

Name7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018

Conference

Conference7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
Country/TerritoryFrance
CityParis
Period14/10/1817/10/18

Keywords

  • Back-propagation neural network
  • Partial shading scenarios
  • Photovoltaic systems
  • Sensor placement

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