A distributed active and reactive power control strategy for balancing grid-Tied cascaded h-bridge pv inverter system

Hamidreza Jafarian, Namwon Kim, Babak Parkhideh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Unbalanced operation between panel-level modular inverters constrains the operating range of grid-Tied cascaded Hbridge Photovoltaic (PV) inverter system when the active and reactive power of the architecture changes. The main objective of this paper is to propose a distributed control approach for balancing reactive power among inverters. The distributed controller allows fully decentralized architecture in terms of control and physical implementation of a PV system, resulting in higher reliability and potentially lower cost. The proposed control approach autonomously compensates reactive power contents of inverters caused by the active and reactive power changes by shifting their phase angle with local AC current measurement. Detailed modeling and analysis are provided to show the feasibility of the proposed control strategy. The decentralized control scheme is verified by real-Time hardwarein-the-loop setup.

Original languageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1667-1672
Number of pages6
ISBN (Electronic)9781509029983
DOIs
StatePublished - Nov 3 2017
Externally publishedYes
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: Oct 1 2017Oct 5 2017

Publication series

Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume2017-January

Conference

Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati
Period10/1/1710/5/17

Keywords

  • AC-stacked PV inverter
  • Cascaded H-bridge
  • Distributed control
  • Reactive power injection.
  • Reactive power support

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