A practical issue faced by today's ac grid is the rapidly growing power demand on its aging infrastructure. One possibility to maximize the capacity of the existing infrastructure is to refurbish the ac links to operate under dc conditions using modular multilevel converters. In this paper, the idea is applied to restructure an actual medium voltage distribution system. Further, a systematic reconfiguration strategy is proposed to maintain high power delivery capacity even during (n-1) contingency. Contingency analysis is carried out for faults in different system components of the distribution grid. Towards this goal, novel concepts such as reconfigurable switch, dc link converter bypass and flexible dc to ac operational transition are proposed.

Original languageEnglish
Title of host publicationProceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017
Place of PublicationPiscataway, NJ
Number of pages6
ISBN (Electronic)978-1-5090-6425-0
Publication statusPublished - 2018
EventSPEC 2017: 3rd IEEE Southern Power Electronics Conference - Puertos Varas, Chile
Duration: 4 Dec 20177 Dec 2017


ConferenceSPEC 2017
CityPuertos Varas

    Research areas

  • breakers, capacity enhancement, contingencies, dc links, distribution, flexible, medium voltage, reconfiguration, switch minimization, system faults

ID: 45659646