Challenges, advances and future directions in protection of hybrid AC/DC microgrids

Sohrab Mirsaeidi, Xinzhou Dong, Shenxing Shi, Dimitrios Tzelepis

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)
301 Downloads (Pure)


Hybrid microgrids which consist of AC and DC subgrids interconnected by power electronic interfaces have attracted much attention in recent years. They not only can integrate the main benefits of both AC and DC configurations, but also can reduce the number of converters in connection of Distributed Generation (DG) sources, Energy Storage Systems (ESSs) and loads to AC or DC buses. In this paper, the structure of hybrid microgrids is discussed, and then a broad overview of the available protection devices and approaches for AC and DC subgrids is presented. After description, analysis and classification of the existing schemes, some research directions including communication infrastructures, combined control and protection schemes, and promising devices for the realisation of future hybrid AC/DC microgrids are pointed out.
Original languageEnglish
Number of pages27
JournalIET Renewable Power Generation
Early online date24 Jul 2017
Publication statusE-pub ahead of print - 24 Jul 2017


  • hybrid AC/DC microgrids
  • AC subgrids
  • DC subgrids
  • protection challenges
  • protection schemes

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