Modified adaptive variable step-size MPPT based-on single current sensor

Emad M. Ahmed, Masahito Shoyama

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

20 Citations (Scopus)


The issue of variable-step size maximum power point tracking algorithms has been addressed in literature. However, most of the addressed algorithms actually tune the variable-step size according to two variables: the photovoltaic (PV) array voltage (VPV) and the PV array current (IPV). Therefore both PV array current and voltage have to be measured. Recently, maximum power point trackers that based on single variable (IPV or VPV) have a great attention due to their simplicity and ease in implementation, when compared to the other tracking techniques. In this paper, a single current sensor based variable step size maximum power point tracker has been proposed. This method uses only the relationship between the PV array measured current and the converter duty cycle (D) to automatically adapt the step change in the duty cycle to reach the maximum power point of the PV array. Detailed analysis and flowchart of the proposed algorithm are included. Moreover, PSIM simulation and experimental results are presented to verify the performance of the suggested algorithm.

Original languageEnglish
Title of host publicationTENCON 2010 - 2010 IEEE Region 10 Conference
Number of pages6
Publication statusPublished - 2010
Event2010 IEEE Region 10 Conference, TENCON 2010 - Fukuoka, Japan
Duration: Nov 21 2010Nov 24 2010

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON


Other2010 IEEE Region 10 Conference, TENCON 2010

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Science Applications


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