A Synchronous-Reference-Frame I-V Droop Control Method for Parallel-Connected Inverters

Mingshen Li, Yonghao Gui, Zheming Jin, Yajuan Guan, Josep M. Guerrero

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

5 Scopus citations

Abstract

A simple and fast decentralized Current-Voltage (I-V) droop control method under the Synchronous-Reference-Frame (SRF) is proposed to share output current for parallel three-phase inverters with LC filter. The I-V droop characteristic is derived in accordance with the virtual impedance in SRF. Thus, each inverter enables to work in a voltage controlled mode where it controls the filter capacitor voltage. Moreover, a detailed state-space model of two parallel inverters is derived to analyze the control performance. Through the simulation and experiment validation, the proposed method provides accurate current sharing and faster transient response under inverter connection in comparison with the conventional droop control.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2668-2672
Number of pages5
ISBN (Electronic)9784886864055
DOIs
StatePublished - Oct 22 2018
Externally publishedYes
Event8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
Duration: May 20 2018May 24 2018

Publication series

Name2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Conference

Conference8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country/TerritoryJapan
CityNiigata
Period05/20/1805/24/18

Keywords

  • Current sharing
  • I-V droop
  • Parallel inverters
  • SRF

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