A distributed approach to MPPT for PV sub-module differential power processing

Shibin Qin, Stanton T. Cady, Alejandro D. Dominguez-Garcia, Robert C.N. Pilawa-Podgurski

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

Abstract

This paper presents a distributed control algorithm for differential power processing in photovoltaic (PV) applications. This distributed algorithm performs true maximum power point tracking (MPPT) of series-connected PV sub-modules with only neighbor-to-neighbor communication and local measurements of each differential power converter voltages, obviating the need for local current measurements. Reduced number of perturbations at each step and potentially faster tracking can be achieved compared to previous solutions, while no extra hardware is required, all of which make this algorithm well-suited for long sub-module strings. The formulation of the control algorithm as well as three case studies are presented; both simulations and hardware experiments have confirmed the effectiveness of the proposed distributed algorithm.

Original languageEnglish (US)
Title of host publication2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
Pages2778-2785
Number of pages8
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

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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