DC microgrid with variable generations and energy storage

Dong Chen, Lie Xu

Research output: Contribution to conferencePaperpeer-review

26 Citations (Scopus)


DC microgrid operation with variable sources is studied in this paper. A 3-level hierarchical DC voltage control is proposed which corresponds to grid connected operation, islanding operation, and load shedding/generation curtailment operation. The system operational status is verified according to voltage levels and corresponding control strategies are used according to voltage levels to secure system stability. A 4-terminal prototype microgrid comprising a grid connected VSC, a wind generator, an energy storage system, and DC loads is established to demonstrate the excellent operation performance of the proposed control system during various operating conditions such as load step, islanding, grid reconnection, and load shedding.
Original languageEnglish
Number of pages6
Publication statusPublished - Sept 2011
EventIET Conference on Renewable Power Generation (RPG 2011) - Edinburgh, United Kingdom
Duration: 6 Sept 20118 Sept 2011


ConferenceIET Conference on Renewable Power Generation (RPG 2011)
Country/TerritoryUnited Kingdom


  • power system stability
  • generation curtailment operation
  • islanding operation


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