Generalised grid-forming VSC control for grid connection and island network

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Abstract

This study proposes a generalised grid-forming VSC control for grid connection and island network for distributed generations. The proposed control scheme is based on grid-forming direct voltage control to establish the AC voltage and frequency for island network, while it works as a controlled AC voltage source to regulate the active and reactive power flowing to the local load and AC grid during grid-connected operation. Strategy for fault current limiting is also proposed to overcome the overcurrent problem brought by the grid-forming direct voltage control. Simulation results during three-phase AC fault and transition from grid-connected operation to islanding operation are presented to confirm the feasibility and effectiveness of the proposed control strategy.
Original languageEnglish
Title of host publication The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
Place of PublicationStevenage
Pages832-837
Number of pages6
DOIs
Publication statusPublished - 17 Dec 2020
EventThe 10th International Conference on Power Electronics, Machines and Drives - Nottingham, United Kingdom
Duration: 15 Dec 202017 Dec 2020
https://pemd.theiet.org/

Conference

ConferenceThe 10th International Conference on Power Electronics, Machines and Drives
Country/TerritoryUnited Kingdom
CityNottingham
Period15/12/2017/12/20
Internet address

Keywords

  • grid connection
  • grid forming
  • island network
  • direct voltage control

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