Power system operators seek to maximize the use of their infrastructure, particularly by increasing their transmission capacity. Approaches such as dynamic line rating, for example, are designed to adapt the transmission capacity of overhead lines according to environmental conditions (solar irradiance, etc.).
Although it also allows the temporary injection of an electric current greater than that admissible in permanent regime, the thermal inertia of export cables in offshore wind farms remains largely unexploited as yet.
Exploiting this inertia would therefore considerably increase the temporary transmission capacity of these cables, while respecting the limiting factor which, in the end, remains the temperature.
Some power system operators are now trying to include this phenomenon in the operational management of their network and especially in the management of export cables, whose responsibility is gradually being transferred to them.
However, these initiatives are still limited, and need to be further investigated. In particular, it remains to be determined which optimization methods can be applied to solve the problem of electro-thermal management of this type of structure.
Indeed, the introduction of highly non-linear electro-thermal constraints represents a challenge, as does the increased number of constraints which may be necessary for a sufficiently accurate representation of thermal diffusion phenomena.
These challenges are all the more important when the stochastic aspects must also be considered (linked in particular to wind production forecast errors) while constraints of relatively short computation time also come into play.
Description du poste
The goal of this internship will therefore be to list the optimization methods applicable to this problem of optimal energy management, to carry out simulations with the most promising ones in order to make a comparative analysis in terms of the quality of the solution (distance to the optimum) and the associated computation time.
A PhD thesis is envisaged following this internship.
Modalités de candidature
Please send your CV and cover letter to all the supervisors:
The intern will be supervised by Anne Blavette (SATIE), Pierre Haessig (IETR) and Salvy Bourguet (IREENA).