Maximum power extraction in solar renewable power system - a bypass diode scanning approach

D. Prince Winston, B. Praveen Kumar*, S. Cynthia Christabel, Ali J. Chamkha, Ravishankar Sathyamurthy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The effectiveness of solar energy as a viable energy source is hampered by various factors including high cost of components and lowered operating efficiency due to partial shading. Partial shading reduces the output of not only the shaded part of the panel but also the other panels connected to the same photovoltaic (PV) array. This paper discusses the benefits of using a bypass diode based voltage drop measurement and maximum power point tracking (MPPT) system in the power generation of a PV array. An algorithm to find the global maximum power in short span of time is also presented. MATLAB is then used to perform the simulation of the proposed algorithm on a 3 × 3 photovoltaic array and the results are checked against actual outdoor tests to test the validity of the proposed method. The proposed method holds even when extended to any array combinations for practical applications.

Original languageEnglish
Pages (from-to)122-136
Number of pages15
JournalComputers and Electrical Engineering
Volume70
DOIs
StatePublished - Aug 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Bypass diode
  • Maximum power point tracking (MPPT)
  • Partial shading
  • Photovoltaic (PV)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • General Computer Science
  • Electrical and Electronic Engineering

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