Designing smart inverter with unified controller and smooth transition between grid-connected and islanding modes for microgrid application

Farnaz Harirchi, Marcelo Godoy Simões, Mohammad Babakmehr, Ahmed Al-Durra, S. M. Muyeen

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

30 Scopus citations

Abstract

A three-phase smart grid-connected inverter (SGCI) for grid integration of PV system is designed where an appropriate controller for grid-connected (GC) operation is developed to avoid transients and distortion usually caused by switching internal current/voltage controllers. The presented control technique uses d-q decoupled electrical axis and after the controller detects any impeding fault in the grid voltage, a unified control allows a very smooth transition between the grid-connected and islanded modes of operation. In addition, a floating interleaved boost converter (FIBC) is implemented in this system for photovoltaic array energy conversion and energy storage has an optimized lifetime algorithm, used to increase the power handling capability of the PV-modules. Analysis and results verify the effectiveness of the proposed control framework under different operating conditions.

Original languageBritish English
Title of host publicationIEEE Industry Application Society - 51st Annual Meeting, IAS 2015, Conference Record
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479983933
DOIs
StatePublished - 14 Dec 2015
Event51st Annual Meeting on IEEE Industry Application Society, IAS 2015 - Addison, United States
Duration: 11 Oct 201522 Oct 2015

Publication series

NameIEEE Industry Application Society - 51st Annual Meeting, IAS 2015, Conference Record

Conference

Conference51st Annual Meeting on IEEE Industry Application Society, IAS 2015
Country/TerritoryUnited States
CityAddison
Period11/10/1522/10/15

Keywords

  • Floating Interleaved Boost Converter (FIBC)
  • Islanding mode
  • Photovoltaic(PV)
  • Smart Grid-Connected Inverter (SGCI)
  • Smooth Transition
  • State of charge (SOC)

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