Deliverable D4.2 Scheduling and Real-Time Operation Strategies to Control V2X Flexibilities

Jan Martin Zepter, Charalampos Ziras, Panagiotis Pediaditis, Jan Engelhardt, Mattia Marinelli, Hugo Morais, António Jerónimo , Pedro Carvalho, Igor Mendek, Matej Zajc, Anton Kos, Leon Marusa, Miran Roser, Kristijan Kozelj, Matej Fajgelj, Antonios Koutounidis, Konstantinos Michos, Oliver Lund Mikkelsen

Research output: Book/ReportReportCommissioned

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Abstract

With the increasing electrification of transport and heating and the associated uptake of both electric vehicles (EVs) and heat pumps, distribution system operators (DSOs) face significant operational challenges such as congestion and/or voltage violations. At the same time, the proliferation of distributed generation (primarily PV) at the distribution level creates new challenges (such as potential overvoltage) and opportunities. Due to this strong increase in both local consumption and generation, DSOs need measures to enhance their operational flexibility and align flexible consumption units with the intermittent, variable, and stochastic renewable generation.

Deliverable D4.2 Scheduling and Real-Time Operation Strategies to Control V2X Flexibilities first reviews various DSO flexibility mechanisms ranging from use-of-system tariffs to market-based approaches. The focus of this work is on examining the rationale and functioning behind flexible capacity contracts and variable grid tariffs, focusing on electric vehicles as flexible loads. Variable tariffs can be used to steer flexible consumption and achieve a more efficient network operation compared to their flat counterpart. However, they cannot guarantee that network constraint violations will not occur. For this reason, they are complemented by flexible capacity contracts, which limit the consumption of users (in return for financial compensation) and provide operational guarantees.

A detailed description of both mechanisms is provided, while illustrative examples showcase how they can be used by DSOs. Further, a formalised methodology in terms of designing variable grid tariffs in the presence of a local flexibility market using capacity contracts is developed. The synergies achieved by combining both mechanisms are showcased. In addition, the interaction between the DSO and charge point operators (CPOs) that aggregate the flexibility of individual EVs is detailed with a review of currently available communication infrastructure.

The insights of this deliverable will serve as a theoretical basis for the demonstration activities at the Greek site, and other activities within the project.
Original languageEnglish
PublisherTechnical University of Denmark
Number of pages35
Publication statusPublished - 2023

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