Summary:
This paper proposes comprehensive models for assessing different Coordination Schemes (CSs) in the context of distributed flexibility procurement used for balancing and congestion management at local and transmission grids. The proposed models focus on the coordination between the TSO and the high voltage distribution levels, introducing the meshed-to-meshed topology with multiple TSO–DSO interface substations. The models are applied to a realistic case study of the Swedish power system, with faithful representations of the transmission grid and a subtransmission grid from the Uppsala region. A one-year period case study base on real data is conducted, which is then subject to different sensitivity analyses. Real data from the TSO and the DSO validate results. From the DSO side, the paper presents and quantifies the effectiveness of the Local Flexibility Market (LFM) for the DSO in the Swedish context in reducing potential subscription-level penalties in a Multi-level CS while also exploring aspects of different LFM market designs. This paper shows the potential aspects of information exchange both for TSO and DSO in different CSs, as well as between Flexibility Service Providers (FSP) and the procuring System Operator. The proposed market designs are more transparent and easier to implement, limiting the information exchanged between TSO and DSO and allowing the FSP to know their impact over congestions to be solved.
Spanish layman's summary:
En este artículo, se modelan y analizan diferentes esquemas de coordinación entre TSO y DSO. Se consideran redes malladas en transporte y en alta tensión de la distribución, además de un caso de estudio para Suecia de un año de duración que emplea datos realistas de la red y el sistema.
English layman's summary:
In this paper, different TSO-DSO coordination schemes are modelled and analysed from a realistic perspective: EHV and HV grids in a meshed-to-meshed topology are considered, as well as a year-long Swedish case study with realistic grid and system data.
Keywords: TSO–DSO coordination; Local flexibility markets; Optimization; Power system economics; Electricity markets
JCR Impact Factor and WoS quartile: 5,400 - Q1 (2022)
DOI reference:
https://doi.org/10.1016/j.segan.2023.101125
Published on paper: September 2023.
Published on-line: August 2023.
Citation:
L. Lind, R. Cossent, P. Frías, Evaluation of TSO–DSO Coordination Schemes for meshed-to-meshed configurations: lessons learned from a realistic Swedish case study. Sustainable Energy, Grids and Networks. Vol. 35, pp. 101125-1 - 101125-14, September 2023. [Online: August 2023]
