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Simulation of vertical power flow at MV/HV transformers for quantification of curtailed renewable power

Memmel, Elena and Peters, Dorothee and Völker, Rasmus and Schuldt, Frank and von Maydell, Karsten and Agert, Carsten (2019) Simulation of vertical power flow at MV/HV transformers for quantification of curtailed renewable power. IET Renewable Power Generation, 13, 3071-3079(8). Institution of Engineering and Technology (IET). DOI: 10.1049/iet-rpg.2019.0218 ISSN 1752-1416

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Official URL: https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0218

Abstract

The progressing integration of renewables (RE) into distribution grids leads to bidirectional power flows. Due to the fact that the power infeed by RE exceeds the grid capacities, bottlenecks occur increasingly and thereby renewable power generation has to be curtailed. For the decision if countermeasures like flexibility options could be applied, the knowledge of the amount of curtailed power as well as its local and temporal availability is crucial. This study proposes an approach to determine the curtailed power characteristics, which creates time series simulating the potential vertical power flow at medium voltage/ high voltage (MV/HV) transformers without curtailment. The approach is thereby modular and adjustable to the investigated (or any other) grid, so it achieves a high precision. The power flow at these transformers is modelled by load profiles and power curves of connected RE, which are adjusted individually for each transformer on the basis of the corresponding historical power flow. For validation, the transformers are clustered corresponding to their power flow characteristics and the uncertainty is determined for each cluster. Modelled wind power shows a mean deviation below 2 of total installed wind power. Thereby, the presented modelling approach is able to determine the curtailed power in regions with wind power-related curtailments.

Item URL in elib:https://elib.dlr.de/132961/
Document Type:Article
Title:Simulation of vertical power flow at MV/HV transformers for quantification of curtailed renewable power
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Memmel, ElenaElena.Memmel (at) dlr.dehttps://orcid.org/0000-0003-0619-5905
Peters, DorotheeUNSPECIFIEDUNSPECIFIED
Völker, RasmusUNSPECIFIEDUNSPECIFIED
Schuldt, FrankUNSPECIFIEDUNSPECIFIED
von Maydell, KarstenKarsten.Maydell (at) dlr.deUNSPECIFIED
Agert, CarstenCarsten.Agert (at) dlr.dehttps://orcid.org/0000-0003-4733-5257
Date:16 December 2019
Journal or Publication Title:IET Renewable Power Generation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.1049/iet-rpg.2019.0218
Page Range:3071-3079(8)
Publisher:Institution of Engineering and Technology (IET)
ISSN:1752-1416
Status:Published
Keywords:curtailment;power infeed;transformer;distribution grids;total installed wind power;corresponding historical power flow;curtailed power characteristics;curtailed renewable power;modelled wind power;power flow characteristics;grid capacities;power curves;wind power-related curtailments;bidirectional power flows;potential vertical power flow;renewable power generation;
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Energy Systems Technology
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems
Deposited By: Memmel, Elena
Deposited On:18 Dec 2019 14:53
Last Modified:09 Apr 2020 14:03

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