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ROMA, Italy

Agency: Cordis | Branch: H2020 | Program: RIA | Phase: LCE-06-2015 | Award Amount: 17.86M | Year: 2016

By 2020, several areas of the HVAC pan-European transmission system will be operated with extremely high penetrations of Power Electronics(PE)-interfaced generators, thus becoming the only generating units for some periods of the day or of the year due to renewable (wind, solar) electricity. This will result in i) growing dynamic stability issues for the power system (possibly a new major barrier against future renewable penetration), ii) the necessity to upgrade existing protection schemes and iii) measures to mitigate the resulting degradation of power quality due to harmonics propagation. European TSOs from Estonia, Finland, France, Germany, Iceland, Ireland, Italy, Netherlands, Slovenia, Spain and UK have joined to address such challenges with manufacturers (Alstom, Enercon, Schneider Electric) and universities/research centres. They propose innovative solutions to progressively adjust the HVAC system operations. Firstly, a replicable methodology is developed for appraising the distance of any EU 28 control zone to instability due to PE proliferation and for monitoring it in real time, along with a portfolio of incremental improvements of existing technologies (the tuning of controllers, a pilot test of wide-area control techniques and the upgrading of protection devices with impacts on the present grid codes). Next, innovative power system control laws are designed to cope with the lack of synchronous machines. Numerical simulations and laboratory tests deliver promising control solutions together with recommendations for new PE grid connection rules and the development of a novel protection technology and mitigation of the foreseen power quality disturbances. Technology and economic impacts of such innovations are quantified together with barriers to be overcome in order to recommend future deployment scenarios. Dissemination activities support the deployment schemes of the project outputs based on knowledge sharing among targeted stakeholders at EC level.

The project SmartNet aims at providing architectures for optimized interaction between TSOs and DSOs in managing the exchange of information for monitoring and for the acquisition of ancillary services (reserve and balancing, voltage regulation, congestion management) both at national level and in a cross-border context. Local needs for ancillary services in distribution systems are supposed to co-exist with system needs for balancing and congestion management. Resources located in distribution systems, like demand side management and distributed generation, are supposed to participate to the provision of ancillary services both locally and for the system in the context of competitive ancillary services markets. Through an in-depth and a simulation in a lab-environment, answers are sought for to the following questions: which ancillary services could be provided from distribution to the whole system (via transmission), which optimized modalities could be adopted for managing the network at the TSO-DSO interface and what monitoring and control signals could be exchanged to carry out a coordinated action, how the architectures of the real time markets (in particular the balancing markets) could be consequently revised, what information has to be exchanged and how (ICT) for the coordination on the distribution-transmission border, starting from monitoring aspects, to guarantee observability and control of distributed generation, flexible demand and storage systems, which implications could the above issues have on the on-going market coupling process, that is going to be extended to real time markets in the next years, according to the draft Network Code on Electricity Balancing by ENTSO-E. Different TSO-DSO interaction modalities are compared with reference to three selected national cases (Italian, Danish, Spanish) also supposing the possibility of a cross-border exchange of balancing services. Physical pilots are developed for the same national cases.

Agency: Cordis | Branch: FP7 | Program: CP | Phase: ENERGY.2013.7.2.3 | Award Amount: 62.80M | Year: 2014

A group of eight Transmission System Operators with a generator company, manufacturers and research organisations, propose 5 demonstration projects to remove, in 4 years, several barriers which prevent large-scale penetration of renewable electricity production in the European transmission network. The full scale demonstrations led by industry aim at proving the benefits of novel technologies coupled with innovative system integration approaches: - A scaled down model of generators connected to a HVDC link is used within a new testing facility to validate novel control strategies to improve the interaction between HVDC links and wind turbine generators - The implementation of a full scale, hardware-in-the-loop test setup in collaboration with worldwide market leaders of HVDC-VSC technology explores the interactions of HVDC VSC multiterminal control systems to validate their interoperable operations - Strategies to upgrade existing HVDC interconnectors are validated with the help of innovative components, architecture and system integration performances, to ensure higher RES penetration and more efficient cross border exchanges. - Full scale experiments and pilot projects at real life scale of both installation and operation of AC overhead line repowering technologies are carried out to show how existing corridors can see their existing capacity increase within affordable investments. - The technical feasibility of integrating DC superconducting links within an AC meshed network (using MgB2 as the critical material) will be tested at prototype scale, thus proving that significant performance improvements have been reached to enable commercialization before 2030 The experimental results will be integrated into European impact analyses to show the scalability of the solutions: routes for replication will be provided with benefits for the pan European transmission network and the European electricity market as soon as 2018, in line with the SET plan objectives

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