Security issues of the pan-European electricity transmission system are likely to become more and more challenging in the coming years due to:
- the growing contribution of less predictable and intermittent renewable energy sources,
- the introduction of new controllable devices such as HVDC lines,
- a partially controllable electricity demand,
- the increasing difficulty to build new Overhead transmission line (OHL),
- the progressive construction of the EU market integration.
These new constraints and opportunities will result into more complex system operations, and a grid working closer to its operational limits, which, in turn, will require major revision of existing operational rules and procedures. As a consequence, a new generation of security assessment tools will be needed, since current tools are no longer suited to assist network operators in making the right decisions. Moreover, beyond the coordinated operation initiatives that have already emerged within different regions of the pan-European transmission system (cf. CORESO and TSC) the different TSOs will need to further increase coordination.
The main goals of the iTesla project are firstly to develop such a toolbox, able to support the operation of the pan-European grid in the coming years, and secondly to validate the different functionalities of this toolbox with datasets of increasing complexity and size. Indeed, this toolbox will support the decision-making process from two-days ahead to close to real-time operation and will address the three following challenges:
This toolbox will be flexible enough to cover a wide range of uses by many different end-users. It is designed to be implemented by a single TSO, by a coordination center such as CORESO or by a group of TSOs working in a coordinated way. It will be flexible enough to be adapted to different evolving operating rules.
This toolbox will support interoperability, thus allowing any user to plug its own simulation module. Indeed, the iTesla project will provide a public internal data model with public interfaces and will support the main standards for power system data exchanges (such as PSS/E, Eurostag or CIM formats).
In addition to the above objectives, the iTesla project will:
- develop methodologies and tools for validation of dynamic models of components of the pan-European system, using off-line simulation; dynamic models are needed to describe the dynamic behavior of the grid. They are generally complex and their validation requires a high level of expertise. Adequate tools must be developed to support engineers in order to determine model parameters from measured dynamic responses of the grid.
- review and assess the potential for more robust defense plans and restoration plans; more robust defense plans and optimal restoration plans will be designed with the help of automatic tools (integration of renewables and distributed energy resources, use of time-synchronized measurements from PMUs).
Coordinated by RTE, the iTesla project gathers 6 TSOs
- Elia (Belgium),
- RTE (France),
- IPTO (Greece),
- Stattnett (Norway),
- REN (Portugal),
- National Grid (Great Britain),
a coordination centre (CORESO) and a pool of private companies and research performers
- AIA (Spain),
- Artelys (France),
- Bull SAS (France)
- Pepite (Belgium)
- Quinary SPA (Italy)
- Imperial College (Great Britain)
- INESC Porto (Portugal),
- KTH (Sweden),
- KU Leuven (Belgium),
- RSE (Italy),
- DTU (Denmark),
- TECHNOFI (France),
- Tractebel Engineering S.A. (Belgium).
For more information, please visit http://www.iTesla-project.eu/.