Dynamic behaviour of hill-climbing MPPT algorithms at low perturbation rates

M. A. Elgendy, B. Zahawi, D. J. Atkinson

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

17 Scopus citations

Abstract

Hill-climbing algorithms are the most commonly utilized maximum power point tracking (MPPT) control schemes in photovoltaic (PV) applications. Two techniques have been adopted in the literature for implementing such hill-climbing algorithms: reference voltage perturbation where a reference value for the PV generator output voltage is used as the control parameter and direct duty ratio perturbation where the duty ratio of the MPPT converter is used directly as the control parameter. This paper presents a detailed comparison between these two techniques on the basis of system stability. Practical results obtained using a 540Wp PV experimental setup with a resistive load show very good agreement with the theoretical analysis and numerical simulations.

Original languageBritish English
Title of host publicationIET Conference on Renewable Power Generation, RPG 2011
Pages23
Number of pages1
Edition579 CP
DOIs
StatePublished - 2011
EventIET Conference on Renewable Power Generation, RPG 2011 - Edinburgh, United Kingdom
Duration: 9 May 20118 Sep 2011

Publication series

NameIET Conference Publications
Number579 CP
Volume2011

Conference

ConferenceIET Conference on Renewable Power Generation, RPG 2011
Country/TerritoryUnited Kingdom
CityEdinburgh
Period9/05/118/09/11

Keywords

  • DC-DC power conversion
  • MPPT
  • Photovoltaic power systems
  • Stability

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