Flexibility for congestion management: A demonstration of a multi-mechanism approach

Fonteijn, Rik; Cuijk, T. Van; Nguyen, Phuong H.; Morren, Johan; Slootweg, J.G.

doi:10.1109/isgteurope.2018.8571896

Cited by 15 publications

(9 citation statements)

References 4 publications

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“…Apart from theoretical analyses, a series of demonstration projects have showcased the technical feasibility of congestion management methods. Interflex [43] is a Dutch project dealing with congestion management, comparing time-of-use tariffs, dynamic tariffs and a LFM approach with long lead times. A clear definition for the standardized products on the market, which represents the core of a market proposal, has not yet been provided.…”

Section: Literature Review Of Local Flexibility Marketsmentioning

confidence: 99%

EcoGrid 2.0: A large-scale field trial of a local flexibility market

et al. 2020

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The number of distributed energy resources installed in distribution networks is steadily increasing. Their flexibility can be leveraged by aggregators and used in the wholesale markets. However, the utilization of this flexibility cannot neglect the operating conditions of distribution networks, and thus some form of coordination between distribution and transmission system operators must exist. The idea of operating local flexibility markets has been proposed to address these issues, but experience from real-life demonstrations is still missing. The Danish project EcoGrid 2.0 has designed, implemented and tested a local flexibility market with 800 participating customers, which runs in parallel with the wholesale markets. First, this paper presents a method to identify and quantify the value of possible flexibility services that are beneficial to the distribution system operator. Next, it provides insight from the operation of a real local flexibility market, with a large number of controllable loads. Results show that aggregators are able to reliably shape the load of residential heating units to deliver flexibility services, despite the presence of large uncertainties. Services can act as an insurance policy against rare but consequential network overloadings and outages. In these rare cases flexibility services can increase social welfare significantly. However, such services should be carefully selected to avoid adverse effects. Finally, we provide with guidelines and some general remarks on the nature and the desirable characteristics of those markets and services.

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Section: Literature Review Of Local Flexibility Marketsmentioning

confidence: 99%

EcoGrid 2.0: A large-scale field trial of a local flexibility market

et al. 2020

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“…Each day has been divided into 96 program time units (PTUs) of 15-minutes. The needed flexibility is calculated by the FDM for the next 96 PTUs and is the input for the GMS [11,13].…”

Section: System Architecturementioning

confidence: 99%

Flexibility Market Design for Congestion Management in Smart Distribution Grids: the Dutch Demonstration of the Interflex Project

Khomami¹,

Fonteijn

Geelen³

2020

2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)

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DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

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“…Authors in [8] present a case study of Northern Germany, where every MW of additional wind installation will require 0.7 MW of flexibility for avoiding curtailment of renewable generation. Prior works [9]- [12] present market mechanisms for end-user flexible resources for solving low voltage network issues. Market mechanism design presented in [9] utilizes contractual flexibility by DSOs for H2020 Interflex project.…”

Section: Introductionmentioning

confidence: 99%

Perspectives on Distribution Network Flexible and Curtailable Resource Activation and Needs Assessment

Hashmi

Koirala

Ergun

et al. 2023

IEEE Trans. on Ind. Applicat.

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A curtailable and flexible resource activation framework is proposed for solving distribution network (DN) voltage and thermal congestions. This framework utilizes network state in absence of such flexible or curtailable resources as an input for calculating flexibility activation signal (FAS). FAS design is motivated by volt-Var and volt-watt inverter control. The FAS has some similarities with optimal power flow duals, also referred to as locational marginal prices.These dual variables are active in case of network violations. FAS due to drooping design, corrects prior to any network limit violations. The nonlinear resource dispatch optimal power flow (RDOPF) is convexified using second-order cone (SOC) relaxations. Three case studies are performed, which are compared using performance indices proposed in this work. The first case study highlights the multi-objective nature of SOC relaxed RDOPF and provides a Pareto front tuning mechanism for reducing DN losses while also reducing the optimality gap of the SOC relaxed problem with respect to RDOPF. The second case study presents a methodology for evaluating temporal and locational flexibility needs assessment of a DN, which DSO's can utilize for flexibility planning. The last case study quantifies the impact of reactive power flexibility for a DN with varying load power factor. We observe that active power flexibility needs can be reduced by up to 50% for DN with power factor of 0.8.

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Flexibility for congestion management: A demonstration of a multi-mechanism approach

Cited by 15 publications

References 4 publications

EcoGrid 2.0: A large-scale field trial of a local flexibility market

EcoGrid 2.0: A large-scale field trial of a local flexibility market

Flexibility Market Design for Congestion Management in Smart Distribution Grids: the Dutch Demonstration of the Interflex Project

Perspectives on Distribution Network Flexible and Curtailable Resource Activation and Needs Assessment

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