Testing a 900V hardware model of a high voltage DC transmission substation

J. Robinson, D. Jovcic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

DC supergrids will require DC substations that can interconnect and isolate multiple DC lines and ideally also provide DC voltage stepping. As a possible solution to these challenges, a new resonant DC/DC converter family has been researched recently. This article reports on a 30 kW 200V/900V prototype DC/DC converter built at the University of Aberdeen. The converter tests demonstrate bi-directional power control, operation at various voltage levels and gains, as well as inherent DC fault isolation. The tests with most severe DC faults on the high voltage DC terminals, show that such a fault is not propagated through the converter and no over-currents or over-voltages are experienced. The use of this type of converter can eliminate the need for DC circuit breakers. This paper outlines the design of the prototype converter and explains some practical solutions related to inductor and snubber design.

Original languageEnglish
Title of host publicationCIGRE 2011 Bologna Symposium - The Electric Power System of the Future
Subtitle of host publicationIntegrating Supergrids and Microgrids
Publication statusPublished - 1 Dec 2011
EventCIGRE 2011 Bologna Symposium - The Electric Power System of the Future: Integrating Supergrids and Microgrids - Bologna, Italy
Duration: 13 Sep 201115 Sep 2011

Conference

ConferenceCIGRE 2011 Bologna Symposium - The Electric Power System of the Future: Integrating Supergrids and Microgrids
CountryItaly
CityBologna
Period13/09/1115/09/11

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Keywords

  • DC-DC converters
  • HVDC
  • Power electronics
  • Supergrids

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Robinson, J., & Jovcic, D. (2011). Testing a 900V hardware model of a high voltage DC transmission substation. In CIGRE 2011 Bologna Symposium - The Electric Power System of the Future: Integrating Supergrids and Microgrids