An islanding signal-based smooth transition control in AC/DC hybrid micro-grids

Zhenghong Chen, Tao Zheng, Chang Liu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Smooth transition is one of the most important issues of micro-grids. The resulting transition is much impacted by the state step of the regulator. To suppress this mutation, this paper proposes a smooth transition control based on an islanding signal, which updates the state of the regulators by detecting the change of islanding signal. Pre-synchronization control is applied during the transition from islanding mode to grid-connected mode. In comparison, the proposed approach is superior over direct transition control and state follower-based transition control, with both easier regulator parameter configuration and better performance during transition time.

Original languageEnglish
Article number2804
JournalApplied Sciences (Switzerland)
Issue number14
StatePublished - Jul 1 2019
Externally publishedYes


  • Droop control
  • Hybrid micro-grid
  • Islanding signal
  • Smooth transition


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