Hybrid model of a local electricity and flexibility market in the distribution networkFournely, Chloe Julie Caroline (Avtor) Gubina, Andrej Ferdo (Mentor) Capacity allocationCongestion managementLocal marketLow-voltage networkMarket clearingVoltage controlThe integration of distributed energy resources (DERs) such as electric vehicles poses an important risk to low-voltage networks, including voltage deviations, and load congestion. Effective use of DER flexibility is essential to mitigate these network issues. This thesis proposes a novel hybrid market-based approach to voltage control and congestion management which includes two components operating alongside: a local capacity market and a local flexibility market. This hybrid market mechanism enables active power trading between low-voltage network operator and end-users, in the form of network capacity rights for the first market component and binding flexibility services for the second component. By coordinating the schedules of DERs prior to operation explicitly linking them to network constraints, the local hybrid market has the potential to defer network reinforcement, provide financial resources to the network operator for reinforcing, and constrain wholesale energy bidding to respect local network boundaries. This thesis formulates the design specifications of such market, with a focus on the efficiency of the market clearing algorithms. We explore four clearing mechanisms for active power allocation, which go beyond traditional price-based methods and aim to increase fairness among network users. We evaluate these algorithms on a real low-voltage network model over a single day under varying network constraints and priority rules. Our simulations demonstrate that clearing algorithms incorporating power flow equations outperform the copperplate model in effectively managing voltage and congestion. The number of load congestions experienced in the different scenarios were highly reduced but not fully prevented, due to the simplification of the power flow equations. The rolling-priority market mechanism proved to be the allocation which provided the highest fairness of access to network capacity and maximised the line utilisation, while respecting voltage limits.20262026-05-14 13:20:02Doktorsko delo/naloga182517VisID: 62237sl