Bipolar DC Power Conversion: State-of-the-Art and Emerging Technologies

Sebastian Rivera*, Ricardo Lizana F., Samir Kouro, Tomislav Dragicevic, Bin Wu

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

98 Citations (Scopus)


This article provides a detailed analysis of the power electronics solutions enabling bipolar dc grids. The bipolar dc grid concept has proven to be more efficient, flexible, and higher in quality than the conventional unipolar one. However, despite its many features, these systems still have to overcome their issues with asymmetrical loading to avoid voltage imbalances, besides meeting regulatory and safety requirements that are still under development. Advances in power electronics and the large-scale deployment of dc consumer appliances have put this growing architecture in the spotlight, as it has drawn the attention of different research groups recently. The following provides an insightful discussion regarding the topologies that enable these architectures and their regulatory requirements, besides their features and level of development. In addition, some future trends and challenges in the further development of this technology are discussed to motivate future contributions that address open problems and explore new possibilities.

Original languageEnglish
Article number9036877
Pages (from-to)1192-1204
Number of pages13
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Issue number2
Publication statusPublished - Apr 2021
Externally publishedYes


  • Bipolar dc bus
  • dc distribution
  • dc microgrids
  • low voltage (LV) dc
  • smart grid


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