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|Title:||Targeted HVDC Deployment for a Sustainable European Transmission System Development|
|Authors:||L'ABBATE ANGELO; FULLI GIANLUCA|
|Citation:||Proceedings of the 16th Power Systems Computation Conference (PSCC) ISBN: 978-0-947649-28-9|
|Publisher:||University of Strathclyde|
|Type:||Articles in periodicals and books|
|Abstract:||Against a background of energy market restructuring, increasing environmental awareness and rising concerns about security of energy supply, the electric power system in Europe is facing several issues. Indeed, the general increase of inter- and intra-zonal power transactions and the constant growth in electricity demand in Europe are currently putting the entire electric system under strain. Such issues have been traditionally addressed by adding new capacity, with investments particularly in the field of large-size generation and high voltage Alternating Current (AC) transmission infrastructures. Nowadays, increasing the power system capacity is frequently a challenging option due to economic, environmental, and political constraints that hinder the construction of new large power plants and high voltage lines. To address the above issues new solutions are therefore necessary. Among them, one of the most promising foresees the targeted deployment of HVDC (High Voltage Direct Current) transmission technologies displacing the conventional high voltage AC ones. When comparing HVDC with AC, for the same transmitted power the need for right of way is much smaller for HVDC than for AC. The environmental impact as a whole may then be smaller with HVDC. On the other side, a techno-economic assessment needs to be carefully carried out. HVDC technology presents characteristics that have made it widely attractive over AC transmission for specific applications like long-distance power transmission and long submarine cable links. Currently, recent advances in the power electronics coupled to the traditional features of HVDC may lead to improve the operation and sustain the development of the European transmission grid. In fact, the application of VSC (Voltage Source Converter)-based HVDC can provide the European power system with an increased transmission network capacity and generally enhanced system reliability, security and controllability. These properties are especially important in a deregulated environment, where VSC-based HVDC with its fast power flow control capability can be an attractive option to solve several transmission problems. The present paper aims at investigating the impact of VSC-based HVDC on the European power systems, focusing on the technical, environmental, and economic benefits given by the deployment of these devices. Specific attention is paid to the transmission capacity enhancement attainable by VSC-HVDC in targeted applications in the European transmission system. Towards this scope, the modeling of these VSC-HVDC technologies for steady-state studies becomes essential. An original model of these devices is introduced in the paper. Then, a techno-economic analysis of the impact of VSC-HVDC on liberalized power systems in Europe is undertaken to investigate the feasibility and the sustainability of such investment compared to building AC lines.|
|JRC Directorate:||Energy, Transport and Climate|
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