DC smart micro grid protection system

Endeshaw Solomon, Baseem Khan, Esayas Gidey, Mesfin Fanuel, Om Prakash Mahela, Hassan Haes Alhelou

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review


DC micro grids are superior over alternating current (AC) micro grids in consistency, competence, simplicity, combination of renewable energy system (RES), and connection of direct current (DC) loads. The DC micro grids are more advantageous for distribution system because of its good efficiency. Although a good protection system is the main problem for DC micro grid. Currently, many papers on DC micro grid are concentrated on topology structure, control system, and energy control method, but the papers on this does not focus on analysis of fault, detecting fault, and isolating the detected fault. In this chapter, the main problems faced with DC micro grid protection systems are examined from many features such as the characteristics of fault current, grounding system, fault locating system. For all listed sections, a complete summary has been provided. Lastly, recommendations on DC micro grid protection system are clearly stated. For now, to briefly compute problems on protection system and encourage the expansion of DC micro grid, this chapter sorts out the main ideas on future papers.

Original languageEnglish
Title of host publicationSmart Cities Policies and Financing
Subtitle of host publicationApproaches and Solutions
EditorsJohn R. Vacca
Place of PublicationAmsterdam Netherlands
Number of pages11
ISBN (Electronic)9780128191309
ISBN (Print)9780128191316
Publication statusPublished - 2022
Externally publishedYes


  • DC micro grids
  • Fault characteristics
  • Ground systems
  • Protection devices
  • Protection schemes
  • Renewable energy system

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