The algorithm is used for transmission expansion planning, transmission capacity calculation, grid contingency security analysis, grid merging and exchange of data using the CGMES (Common Grid Model Exchange Standard) format defined by ENTSO-E (European Network of Transmission System Operators for Electricity).
Grid analysis and simulation
RTE is the French electricity Transmission System Operator (TSO). RTE is responsible for the safe operation of the French power grid and of its adequate development to enable the energy transition. Grid simulations are extensively needed in order to make sure. In 2018, RTE decided to foster the adoption of open-source software. Consequently, as a founding member of LF Energy, RTE brought the PowSyBl grid simulation project under the umbrella of the foundation in order to give it momentum. The computational foundation of PowSyBl is its power flow. It simulates how the electricity flows over the meshed grid from generation to loads when the grid is complete as well as in situations where outages occur. Its performances are critical for the majority of PowSyBl’s features like contingency-based security analysis, cross-border capacity calculation, contingency remedial action optimization, transmission expansion planning, etc.
Optimizing the power flow algorithm performance
Artelys consultants have assisted RTE in the design and implementation of a fast method to compute PTDFs (Power Transfer Distribution Factors) in base state (N) and after removing some network elements (N-K) based on the Woodbury formula. This method brings tremendous performance improvements to Security-Constrained DC approximation Optimal Power Flow (SC DC OPF) used in transmission expansion planning as well as in capacity calculation and remedial action optimization tools like Farao. Artelys consultants contributed to write a tutorial to explain how to benefit from these improvements when performing load flow computations. Artelys has also contributed to making the power flow fit for the European Merging Function (EMF) whose goal is to generate pan-European grid models from individual grid models provided by each TSO in CGMES format.
Through these contributions, Artelys continues to develop its expertise in the provision of solutions combining advanced optimization techniques and excellent understanding of the underlying phenomena for European TSOs. This expertise is notably at work in the context of the provision of the Libra market-clearing module for Replacement Reserves (RR) and manual Frequency Restoration Reserve (mFRR).
If you want to know more about our services, you can contact us or visit our dedicated web page.
Co-optimization study of baltic TSOs cross zonal capacity value between energy and balancing capacity markets
— Artelys supports baltic Transmission System Operators (TSOs) AST, Elering, and Litgrid in the evaluation of the optimal use of cross-border interconnection capacities for energy and balancing capacity exchanges.
— Artelys provides the market clearing engine for the new renewable Guarantees of Origin auction.
— The Electricity Balancing Guideline, which entered into force in 2017, defines a framework for a balancing market that enables TSOs to net their balancing demands and to procure balancing energy from providers located in their own area as well as in other zones to balance the electricity grid. This measure enables the overall system to benefit from an increased level of security of supply and overall lower balancing costs.
— Artelys has delivered Toyota with a computation algorithm to optimally plan post-production assembly operations.
subscribe to our newsletters