Algorithms for Maximum Power Point Tracking through Load Management

Kelvin Tan, Joseph A. Azzolini, William J. Parquette, Christian R. Polo, Meng Tao

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

3 Scopus citations


This paper presents the basic control algorithm and its improvements for a feedback-based load-matching PV system. Our previous load-matching system employed a photodetector for system control. Several practical challenges for the photodetector-based load-matching system have been identified. The feedback-based system eliminates those challenges and makes the system practical. The methods for improving the basic algorithm include monitoring PV power over time, a time delay between two power measurements, averaging multiple power measurements, and a power threshold before attempting a switch. They are implemented in SIMULINK for a system with six equal-resistance loads on both sunny and cloudy days and the optimal values for these parameters are identified. The algorithm with optimized parameters is verified in a real system on both sunny and cloudy days. These results prove the viability of maximum power point tracking through load management.

Original languageEnglish (US)
Title of host publication2021 IEEE 48th Photovoltaic Specialists Conference, PVSC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781665419222
StatePublished - Jun 20 2021
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: Jun 20 2021Jun 25 2021

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/TerritoryUnited States
CityFort Lauderdale


  • load management
  • load matching
  • maximum power point tracking
  • photovoltaic systems
  • power electronics

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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