2024/05/16 by David Schönheit, Schönheit, David, Ivan Marjanović +1
Engineering · #Advanced Control Systems Optimization #FOS: Electrical engineering #Optimal Power Flow Distribution #Smart Grid Security and Resilience #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2405.10010
openalex publication_date 2024/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Flow-based market coupling is substantially altering the computation of cross-zonal capacities for the trade of electricity in the vast majority of European markets. The main benefit of the flow-based method is improved accuracy by better representing the impact of cross-zonal trade on the power flows in transmission grids. Some borders, adjacent to flow-based capacity regions, are represented through net transfer capacities during market coupling. Under the current standard hybrid coupling, the utilization of grid elements in the flow-based regions due to the predicted trade across such borders is not available for trades between flow-based zones. The flow-based representation is not limited to the given capacity calculation region, but can be extended to also model the impact of trade with other regions. This so-called advanced hybrid coupling replaces the priority inherently given to trade across net transfer capacity-coupled borders by introducing virtual bidding zones. These map the effect of non-flow-based borders on line capacities in the flow-based regions, enabling the market coupling optimization to prioritize trade between flow-based bidding zones and trade across non-flow-based borders. This paper explains the mechanism of advanced hybrid coupling and how it is modeled mathematically. Based on a test network, a case study shows to what extent and why advanced hybrid coupling leads to welfare gains during market coupling and lower congestion management costs in the flow-based region.