Energy
Power systems operations
Operational solutions for power grids and power market operations
Operational solutions for power grids and power market operations
— Leverage our cutting-edge computation engines and expertise to run the power systems efficiently.
Artelys delivers operational computation modules and performs their support and maintenance, including 24/7 commitment for critical applications.
Artelys has delivered custom solutions for the technical and economic operation of power systems to customers like Transmission System Operators (TSOs), Distribution System Operators (DSOs), Regional Coordination Centers (RCCs), market operators, producers and energy traders.
Relying on our combined expertise in power systems and artificial intelligence, our operational tools embed first-class computation engines to deliver robust and reliable results in a timely manner.
congestion management and market clearing
congestion management and market clearing
Cross border
capacity calculation
- Available Transfer Capacity (ATC) and Flow-Based (FB) domains
- Optimization of non-costly remedial actions
Market clearing
algorithms
- Selection of accepted bids
- Computation of market prices, commercial exchanges and shadow prices
- For day-ahead, intra-day, forward or capacity markets
- Local or global
our skills
our skills
Network modelling Load flows Optimal Power Flows Security Analysis Remedial Actions Optimizers Market-clearing theory and practice
— Advanced technological base
Participation to the Technical Steering Committee of Linux Foundation Energy’s PowSyBI framework Involvement in the development community of PowSyBl framework Mastery of state-of-the-art numerical solvers like Fico Xpress and Artelys Knitro Integration into Artelys Crystal platform
— Advanced technological base
Participation to the Technical Steering Committee of Linux Foundation Energy’s PowSyBI framework Involvement in the development community of PowSyBl framework Mastery of state-of-the-art numerical solvers like Fico Xpress and Artelys Knitro Integration into Artelys Crystal platform
Development and maintenance of high availability tools Automatic and secure data processing, imports/exports Performance guarantees 24/7 support is available
use case: the CorNet program
use case: the CorNet program
— Combined expertise in Numerical Optimisation, Artificial Intelligence & IT applied to network calculations.
The CorNet program, launched jointly by Coreso and TSCNET, two RCCs, aims to set up an operational security analysis platform for the European electricity network. The aim is to coordinate exchanges between the different TSOs to ensure security of supply and facilitate cross-border energy exchanges. Artelys develops and integrates computation engines for this platform.
Merging & Load flow Analysis
Assess the loading condition
of power grid elements
Validation of models from +30 TSOs
Core region merged network of 120,000 nodes
AC/DC LF aligned with ENTSO-E requirements
High performance requirements
Capacity calculation
Assess the maximum safe cross-border transfer
exchange capacities
Different time horizons (intra-day, day-ahead, monthly, annual, etc.)
High performance requirements
Optimization of phase shifter transformers, topology, and HVDC lines
Maximize the transfer capacity
Security Analysis
Perform post-contigency security assessment
24 Timestamps, >10,000 nodes
10,000 contingencies, 6,000 monitored elements
High performance requirements
Simulation of post-contingency remedial actions
Remedial action cost sharing
Assess the costs for TSOs to deploy remedial actions
Selection of congested network elements with contigencies
Flow decomposition (“colouring”) algorithm
Internal flow, loop flow and import/export flow
Transit flow, PST cycle flow and HVDC cycle flow
our clients
our clients
Artelys develops computation modules for an operational pan-European power grid security analysis platform
Implementation of the market clearing engine for the European platform for the exchange of manual Frequency Restoration Reserve (mFRR)
Artelys has developed a decision support tool to support TenneT in improving the congestion management with topological remedial actions
Artelys has developed a platform for the simulation of zonal automata in the transmission grid, optimizing the curtailment of wind power to relieve local congestions
To enhance the integration of renewables, Artelys has participated to the development of an Optimal Power Flow (OPF) that minimizes the generation curtailments on the distribution grid
Development of optimization engines to minimize generation curtailments on the distribution grid
Artelys develops and provide maintenance and support services for two optimization tools for the French DSO Enedis, in collaboration with EDF R&D. The project aims to help system operators to address potential physical and contractual constraints violations at least cost.
Based on Optimal Power Flow (OPF) engines, the solution first generates a sequence of operations to perform in order to achieve the generated topological remedial action plan (e.g. opening/closing network switches in order to choose the best radial grid structure for forecasted operation conditions). As a second step, other remedial actions are applied to address remaining potential issues at least cost for the operator (e.g. generation curtailment, flexibility activation, transformers tap setting, voltage or reactive set point modifications).
The mathematical problem is solved using mixed-integer linear programming (CPLEX, GLPK etc.). AC power flow equations are linearized in such a way that both intensity and voltage related constraints can be addressed.
MARI: Implementation of the market clearing engine for the European platform for the exchange of manual Frequency Restoration Reserve
Artelys has developed the market clearing engine for MARI (Manually Activated Reserves Initiative). MARI is the European platform for the activation and exchange of balancing energy from frequency restoration reserves with manual activation (mFRR), implemented in line with the Guideline on Electricity Balancing (EBGL).
Artelys has first performed an initial design and feasibility study of the solution extending the Libra optimization module developed for the TERRE project, for activation of Replacement Reserves, and meeting the technical expectations of MARI project, including robustness, fault tolerance and high performance. This design and specification phase was followed by the implementation of the market clearing engine for the MARI platform.
The MARI platform has been in operation since October 2022, and European transmission system operators are gradually connecting. Artelys is now responsible for further development of the algorithms and for maintaining the tool in operational conditions, 24/7.
Development of a simulation platform for zonal automata aimed at minimizing wind power curtailment for a TSO
Automated systems have been deployed in several areas of the French electricity transmission network. Based on measurements from the area’s substation, they act in real-time to address congestions within their zone. They perform pre-contingency and post-contingency renewable energy curtailment, manage batteries or switch breakers. These actions are controlled by algorithms implemented by RTE. The validation and improvement of these algorithms are therefore key challenges to ensure safe and effective congestion management across the transmission network.
As part of its operational activities for the development of energy networks, Artelys supports the French electricity TSO RTE to validate the algorithms used in the decision-making processes of zonal automata. To this end, Artelys has participated to the development of a simulation platform based on the PowSyBI Dynawo dynamic power system simulator.
This platform serves several key purposes:
- Simulation of network contingencies (N-1) at various time horizons, both within and outside the automata’s area of action
- Simulation of measurement noise to assess its impact on the decision made by automata
- Simulation of the network and the automata’s actions using PowSyBI Dynawo
- Generation of performance indicators
This project leveraged our expertise in mathematical and algorithmic optimization, as well as our in-depth knowledge of transmission networks and of the PowSyBI Dynawo simulator.
Development of a tool for decision support on topological remedial actions for congestion management for Netherlands TSO TenneT
The pilot project is focused on the area of Groningen-Drenthe, in the north-east region of the country, with high penetration of solar power and little consumption, causing recurrent congestion issues.
The GridOptions tool is providing insights in day-ahead strategies to prevent or limit these congestion episodes. The approach to build those strategies can be summarized as a dynamic programming algorithm combined with heuristics. In a first stage, load flows are computed for a large selection of network topologies, using forecasts of power load and generation. This list of topologies is narrowed down with a heuristic favorizing topologies with the longest period without congestions. Ultimately, a sequential decision graph of network states is built and strategies are derived from them using Dijkstra’s algorithm.
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