Modern Power Transmission Systems
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1 Program leader Full Professor Claus Leth Bak Vice program leader Associate Professor Filipe da Silva 1
2 Key Words Transmission power systems HVAC transmission cable technology Future Grid Structures VSC-HVDC transmission, future perspectives Offshore networks Bulk wind power integration Modern power system protection schemes Transient simulations PSCAD/EMTDC Insulation coordination Harmonics in transmission power systems Transmission network components High Voltage and material technology Condition and lifetime assessment Overhead line corona audible noise 2
3 Ongoing Research Projects SALS Smart Adaptive Load Shedding ( ) HARMONY Harmonic identification, mitigation and control in power electronics based power systems ( ) Active filter functionalities for power converters in wind power plants ( ) DANPAC HVAC transmission cable networks ( ) Development of a Secure, Economic and Environmentally friendly Modern Power System ( ) Power Pylons of the Future (PoPyFu) ( ) 3
4 Ongoing PhD Projects High Power Medium Voltage DC/DC Converter (Catalin Dincan) Harmonic Stability in Power Electronics Based Power Systems (Esmaeil E) Planning and Control of Offshore VSC HVDC Multiterminal Transmission Grids (Roni Irnawan) Harmonic Modelling, Propagation and Mitigation for Large Wind Power Plants Connected via Extra Long HVAC Cables (Mohammad Kazem Dowlatabadi) Control Tuning of Phase Measurement Units based Protection Systems with VSC HVDC controls to Mitigate Instability of System (Hesam Khazraj) Modelling of Long Submarine Transmission Power Cables (To be started soon) Voltage Control in the Future Power Transmission Systems (Nan Qin) Small Scale Harmonic Power System Stability (Changwoo Yoon) Technologies for the Power Supply of Electric Railways in Denmark (Stamatopoulos, Athanasios) Adaptive Protection for Medium Voltage Marine Applications (Catalin Ciontea) Electrical Design of a New, Innovative OHL Transmission Tower made in Composite Materials (Tohid Jahangiri and Qian Wang) 4
5 Current research topics Underground cables in the transmission system High voltage OHL in composite material Railway electrification voltage quality and unbalance Harmonic interaction in multi inverter networks (PV and WP, also offshore WPP) Network stability including HVDC Protection of grids HVDC/MVDC technologies for the future offshore grid 5
6 RESEARCH IN HARMONICS SINCE PhD s Harmonics in Transmission power systems by Wojciech Wiechowski 2006 Harmonics in Large Offshore Wind Farms by Lukasz Kocewiak 2012 Harmonics in Offshore Wind Power Plants Employing Power Electronic Devices in the Transmission System by Jakob Glasdam Numerous Master level and Masters thesis projects HARMONY ERC project by Prof. Blaabjerg 6
7 RESEARCH IN UNDERGROUND/SUBMARINE TRANSMISSION CABLES SINCE (6) PhD s Modelling of Long HVAC Cables in Transmision Systems by Stella Gudmundsdottir 2010 Analysis and Simulation of Electromagnetic Transients in HVAC Cable Transmission Grids by Filipe Faria da Silva 2011 Dynamic Study on the 400 kv 60 km Kyndbyværket Asnæsværket Line by Teruo Ohno 2012 Online location of Faults on AC Cables in Underground transmission Systems by Christian Jensen 2014 EHV/HV Underground Cable Systems for Power Transmission by Claus Leth Bak 2015 Losses in submarine cables (not completed) Numerous Masters projects and publications 7
8 SALS Smart Adaptive Load Shedding ForskEl 2016 Very positive technical review 2 years 3 WP s for 1 postdoc Total budget 2,5 Mkr Approved! One Assistant Professor and partly two professors 8
9 Core competences and focus areas 9
10 Publication partners Dept. of Energy Technology and Danish Cigré NC organizes Cigré international Symposium 2019 GOING OFFSHORE CHALLENGES OF THE FUTURE POWER SUPERGRID 10
11 State of the art laboratory facilities in both HV and MV DONG Energy, Siemens, ABB, Vattenfall DEIF, Tennet, TU Delft. 11
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