Maximum-voltage-unit-guided MPPT algorithm for improved performance under partial shading

Tong Yao, Raja Ayyanar

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

14 Scopus citations

Abstract

A new maximum power point tracking (MPPT) algorithm of photovoltaic (PV) system is proposed in this paper. It is well suited for microinverter applications especially under partial shading conditions. It relies on voltage measurements on each substring of PV module. The substring with the highest voltage is set as the guiding unit and the global maximum power point (GMPP) is determined based on it. The proposed method can be implemented in any of the existing inverter configurations, with the only additional requirement being the voltage sensors across each substring, i.e., across each bypass diode of the modules. The proposed algorithm referred to as the maximum-voltage-unit-guided MPPT (MVUG-MPPT) is simple to implement and results in superior performance in terms of MPPT accuracy and speed under partial shading. The detailed development of the algorithm and its implementation are described. Validation of the proposed methods using extensive numerical simulations in PLECS and comparison with other MPPT approaches are also presented.

Original languageEnglish (US)
Title of host publication2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
Pages2428-2434
Number of pages7
DOIs
StatePublished - Dec 31 2013
Event5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013 - Denver, CO, United States
Duration: Sep 15 2013Sep 19 2013

Publication series

Name2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013

Other

Other5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013
CountryUnited States
CityDenver, CO
Period9/15/139/19/13

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Yao, T., & Ayyanar, R. (2013). Maximum-voltage-unit-guided MPPT algorithm for improved performance under partial shading. In 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013 (pp. 2428-2434). [6647012] (2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013). https://doi.org/10.1109/ECCE.2013.6647012