A fast switching, scalable DC-Breaker for meshed HVDCSuperGrids
Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2014
Pages: 7Language: englishTyp: PDF
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Authors:
Wang, Yeqi; Marquardt, Rainer (Universitaet der Bundeswehr, Germany)
Abstract:
The increasing percentage of renewable energy sources and the decreasing number of conventional power plants lead to new challenges for the High Voltage Grid. The existing HVAC-Grids are not suitable to compensate the fluctuating nature of these sources and to transmit energy over long distances. Therefore, a large meshed HVDC-SuperGrid, electronically controlled, has been proposed by several experts. Such a large grid will impose the need for fast DC-Breakers at the nodes and Modular Multilevel Converters with current limiting function. The following paper deals with a new concept for a fast switching DC-Breaker, with thyristor-based power electronics. Its characteristics and essential components are investigated in detail.