Topic: Feasibility of DC networks
Abstract: The DC transmission networks are being investigated as facilitating technology for EU-wide supergrid, for regional networks in North Sea or Mediterranean Sea, and for a range of other networks at lower powers. There is a large number of technical challenges in developing reliable and cost-effective DC grids, which have been studied recently, including: protection, control, grounding, operation, converter technologies, …. CIGRE has been studying DC grid feasibility in WG B4.52 which will be reporting soon, and five new working groups are established in 2011. This panel will review some of the crucial DC-grid related research topics and review the work in CIGRE and in the TWENTIES project.
The panellists and topics include:
1) Technical challenges for DC grids: Dragan Jovcic University of Aberdeen, UK
• DC grid topologies
• DC circuit breaker
• DC/DC converters
• DC grid control methods
2) Technologies available for DC grids: Kerstin Linden, ABB, Sweden,
• VSC Technology break-through
• Technologies available for DC Grids
• From a regional DC Grid towards an interregional DC Grid
3) DC grid protection: Dirk Van Hertem, KU Leuven, Belgium,
• Properties/requirements of a DC protection system
• DC faults (just to show what the problem is)
• Difference between AC and DC protection
• Different aspects of system protection (robustness towards grid changes, selectivity, backup…)
4) Status of the TWENTIES project on DC grids: Jean-Pierre Taisne, RTE, France,
- Duties of DC breakers in a meshed DC grid
- Challenges for DC fault clearance: measure, detection, selectivity, coordination
- Next steps forward
Download Presentation: Jean-Pierre Taisne
Download Presentation: Wolfgang Grieshaber
Affiliation: University of Aberdeen | Reader
Biography: Dragan Jovcic obtained Diploma Engineer degree in control engineering from University of Belgrade in 1993 and a PhD in electrical engineering from University of Auckland in 1999. His academic appointments include:
• University of Aberdeen, UK, Reader since 2011, Senior Lecturer 2008-2011, Lecturer 2004-2008,
• McGill University, Montreal, Canada, Visiting professor, 2008,
• University of Ulster, Newtownabbey, UK lecturer 2000-2004.
Dr Jovcic’s research is related to power electronics applications to Power Transmission systems and integration of renewable energy. He has managed numerous research projects with total value of over £1.4million, funded mainly from Research councils, Royal Academy and DTI. In 2010 he was awarded a prestigious Starting Grant funded by European Research Council under IDEAS FP7 program. Several major industry players have supported his research. Dr Jovcic has held a number of external appointments as a consultant and expert/assessor for various international companies and government institutions.
Dr Jovcic has published around 60 refereed articles and he is inventor on 3 patents. He is a senior member of IEEE and a member of CIGRE where he contributes in various working groups. He is also a member of EU coordinator Adamowitsch working group on European transmission grids.