Communication-Less Control of Two-Stage Photovoltaic System with Multiple Distributed Dual-Input Central Capacitor Converters

Jiaxin Liu, Feng Gao, Mengxing Chen, Gongke Wang

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

When multiple distributed dc-dc converters are connected to the single rear-end inverter in the multi-string PV system, the communication between front-end converters and rear-end inverter is required for timely responding to the grid variation in tradition, which however to some extent will limit such application due to the communication reliability and cost. This paper therefore proposes a communication-less control scheme for this kind of two-stage PV system by properly assuming the voltage droop principle to regulate the generated real power. Doing so, the two-stage PV system with multiple distributed dc-dc converters can work well under both steady states and transient states. Matlab simulations can verify the effectiveness of the proposed control strategy.
Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
Number of pages6
PublisherIEEE Press
Publication dateSept 2018
Pages6392-6397
Article number8557444
ISBN (Print)978-1-4799-7313-2
ISBN (Electronic)978-1-4799-7312-5
DOIs
Publication statusPublished - Sept 2018
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sept 201827 Sept 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period23/09/201827/09/2018
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronic Society (PELS)
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Keywords

  • Communication-less
  • Droop control
  • Photovoltaic system
  • Two-stage

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