Adaptive synchronization of grid-connected three-phase inverters by using virtual oscillator control

Mingshen Li, Yonghao Gui, Juan C. Vasquez, Josep M. Guerrero

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

8 Citations (Scopus)

Abstract

This paper presents an adaptive synchronization for current-controlled grid-connected inverter based on a time-domain virtual oscillator controller (VOC). Inspired by the phenomenon of dynamics of adaptive oscillator under the perturbation effect. Firstly, the fast learning rule of the oscillator frequency is derived in order to make the oscillator evolve to the grid voltage. Thus realizing a phase-locking behavior, but without requiring the use of a dedicated phase-locked loop (PLL). Then, the unit orthogonal components are obtained to generate the current reference, and a current loop is designed by using a PR controller in the αβ frame. Experimental results were obtained with comparison to PI current controller, showing the salient performances of the proposed method in front of grid frequency variations, voltage sags and swells.
Original languageEnglish
Title of host publicationProceedings of the APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
Number of pages6
Volume2018-March
PublisherIEEE Press
Publication dateMar 2018
Pages1130-1135
ISBN (Electronic)978-1-5386-1180-7
DOIs
Publication statusPublished - Mar 2018
Event33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States
Duration: 4 Mar 20188 Mar 2018

Conference

Conference33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Country/TerritoryUnited States
CitySan Antonio
Period04/03/201808/03/2018
SponsorIEEE Power Electronics Society (PELS), Industry Applications Society (IAS), Power Sources Manufacturers Association (PSMA)

Keywords

  • Gird-connected inverter
  • Dead-zone oscillator
  • Adaptive synchronization
  • Nonlinear control

Fingerprint

Dive into the research topics of 'Adaptive synchronization of grid-connected three-phase inverters by using virtual oscillator control'. Together they form a unique fingerprint.

Cite this