By S. Galant, A. Vaféas, T. Pagano, E. Peirano (auth.), Gianluigi Migliavacca (eds.)
The re-engineering of strength transmission platforms is essential to assembly the ambitions of such regulators because the ecu Union. as well as its industry, organisational and regulatory facets, this re-engineering also will contain technical concerns facing the innovative integration of cutting edge transmission applied sciences within the day-by-day operation of transmission approach operators. during this context, complicated applied sciences for destiny Transmission Grids offers an outline of the main promising applied sciences, prone to be of aid to planners of transmission grids in responding to the demanding situations of the longer term: safeguard of offer; integration of renewable new release; and production of built-in power markets (using the ecu case as an example). those matters have elevated significance as a result of administrative difficulty and the fragmentation of public opinion expressed at the building up of recent infrastructure. for every expertise mentioned, the focal point is at the technical-economic standpoint instead of on in basic terms technological issues of view. A transmission-system-operator-targeted expertise Roadmap is gifted for the combination of promising cutting edge energy transmission applied sciences inside of energy platforms of the mid-long time period. even supposing the first concentration of this article is within the sphere of the ecu power marketplace, the teachings discovered should be generalized to the power markets of alternative regions.
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Additional info for Advanced Technologies for Future Transmission Grids
See appendix for in-depth description. Key benefits from Technologies Integration 2030 Vision Critical S. Galant et al. Challenges 24 New grid Increasing complexity of Uncertain demand EU electricity Legal and regulatory architecture(s) grid operation & planning and generation market designs frameworks By 2030 By 2020 the electricity networks in Europe should Same Vision as 2020 but at the levels set by the EU energy policy at 2030 • Actively integrate efficient new generation and consumption models • Coordinate planning and operations of the whole Electricity Network • Study and propose new market rules to maximize European welfare Increased transmission capacity Increased system reliability Extended power flow controllability System losses reduction Reduced environmental impact Sustainable grid expansion (domestic and cross border) Existing grid optimization Not operated Technologies operated by TSOs by TSOs REAL-TIME TECHNOLOGIES RT1) Real-Time Thermal Monitoring (RTTR) RT2)) Wide-Area Monitoring g Systems y ((WAMS)) PASSIVE TECHNOLOGIES ACTIVE TECHNOLOGIES P1) XLPE underground/submarine cables A1) Fault Current Limiters P2) Gas Insulated Lines A2) PST P3) High Temperature Conductors A3-4) HVDC P4) High Temperature Superconducting cables A5-12) FACTS P5) Innovative towers for HVAC lines Smart metering (impact of) Wind powered pumped hydro storage Sodium-Sulfur (Na-S) batteries Flow batteries Compressed Air Energy Storage Super/ Ultracapacitors Flywheel Energy Storage Superconducting Magnetic Energy Storage Lithium-Ion batteries Fig.
4 shows a prefabricated joint installed on an EHV (extra high voltage) XLPE cable. Prefabricated terminations for outdoor and indoor applications are available as well. 5 shows outdoor terminations with a synthetic anti-explosion insulator mounted on the final pole of an overhead line. Such a system is now extensively used for undergrounding projects. 6 shows an indoor termination mounted on a gas-insulated switchgear (GIS). 3 Self-Contained Fluid-Filled Cable Systems Self-contained fluid-filled (SCFF) cables have been used for underground and submarine power transmission for at least 70 years.
Some optimistic experts consider first applications of HTS by 2020, thanks to a second generation of materials (yttrium barium copper oxide, YBCO) and advanced deposition techniques, starting at distribution system level. However, the majority of manufacturers are much more prudent with regard to their use in transmission systems and do not consider any significant application at least before 2030. Costs and size of the cryogenic refrigeration units will remain a major obstacle. Field tests experimentations within very specific situations (short distance, dense urban area, DC applications) will contribute to the further development of the HTS technology blocks.