Network-Aware Flexibility Requests for Distribution-Level Flexibility Markets

Elea Prat (Corresponding author), Irena Dukovska, Rahul Nellikkath, Malte Thoma, Lars Herre, Spyros Chatzivasileiadis

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

4 Citaten (Scopus)
72 Downloads (Pure)

Samenvatting

This article proposes a method to design network-aware flexibility requests for local flexibility markets. These markets are becoming increasingly important for distribution system operators (DSOs) to ensure grid safety while minimizing costs and public opposition to new network investments. Despite extended recent literature on local flexibility markets, little attention has been paid to quantifying the flexibility required at each location, considering physical network constraints (e.g. line and voltage limits). The method introduced uses a chance-constrained optimization model and a LinDistFlow approximation to consider both physical network constraints and uncertainty caused by renewable production or demand fluctuations. Unlike other methods, it avoids sharing sensitive grid data with the market operator. We compare our approach against a stochastic market-clearing mechanism which serves as a benchmark, and we derive analytical conditions for the performance of our method to determine flexibility requests. We show on two case studies that our method outperforms the stochastic market-clearing benchmark in terms of computation time while achieving comparable social welfare and costs for the DSOs. One of the case studies is conducted on an actual German distribution grid, showing that the proposed method can scale well to real-sized networks.

Originele taal-2Engels
Artikelnummer10136760
Pagina's (van-tot)2641-2652
Aantal pagina's12
TijdschriftIEEE Transactions on Power Systems
Volume39
Nummer van het tijdschrift2
Vroegere onlinedatum2023
DOI's
StatusGepubliceerd - 1 mrt. 2024

Financiering

This work was supported by the H2020 European Project FLEXGRID under Grant 863876.

FinanciersFinanciernummer
European Union H2020863876

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