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Integrated Techno-Economic Power System Planning of Transmission and Distribution Grids

Müller, Ulf Philipp and Schachler, Birgit and Scharf, Malte and Bunke, Wolf-Dieter and Günther, Stephan and Bartels, Julian and Pleßmann, Guido (2019) Integrated Techno-Economic Power System Planning of Transmission and Distribution Grids. Energies, 12 (11), p. 2091. Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/en12112091 ISSN 1996-1073

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Official URL: http://dx.doi.org/10.3390/en12112091

Abstract

The energy transition towards renewable and more distributed power production triggers the need for grid and storage expansion on all voltage levels. Today’s power system planning focuses on certain voltage levels or spatial resolutions. In this work we present an open source software tool eGo which is able to optimize grid and storage expansion throughout all voltage levels in a developed top-down approach. Operation and investment costs are minimized by applying a multi-period linear optimal power flow considering the grid infrastructure of the extra-high and high-voltage (380 to 110 kV) level. Hence, the common differentiation of transmission and distribution grid is partly dissolved, integrating the high-voltage level into the optimization problem. Consecutively, optimized curtailment and storage units are allocated in the medium voltage grid in order to lower medium and low voltage grid expansion needs, that are consequently determined. Here, heuristic optimization methods using the non-linear power flow were developed. Applying the tool on future scenarios we derived cost-efficient grid and storage expansion for all voltage levels in Germany. Due to the integrated approach, storage expansion and curtailment can significantly lower grid expansion costs in medium and low voltage grids and at the same time serve the optimal functioning of the overall system. Nevertheless, the cost-reducing effect for the whole of Germany was marginal. Instead, the consideration of realistic, spatially differentiated time series led to substantial overall savings.

Item URL in elib:https://elib.dlr.de/128707/
Document Type:Article
Title:Integrated Techno-Economic Power System Planning of Transmission and Distribution Grids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Müller, Ulf PhilippCentre for Sustainable Energy Systems, Flensburg University of Applied SciencesUNSPECIFIED
Schachler, BirgitReiner Lemoine InstituteUNSPECIFIED
Scharf, MalteCentre for Sustainable Energy Systems, Europa-Universität FlensburgUNSPECIFIED
Bunke, Wolf-DieterCentre for Sustainable Energy Systems, Europa-Universität FlensburgUNSPECIFIED
Günther, StephanInstitute for Intelligent Cooperative SystemsUNSPECIFIED
Bartels, JulianJulian.Bartels (at) dlr.dehttps://orcid.org/0000-0002-2623-9787
Pleßmann, GuidoReiner Lemoine InstituteUNSPECIFIED
Date:31 May 2019
Journal or Publication Title:Energies
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:No
Volume:12
DOI :10.3390/en12112091
Page Range:p. 2091
Editors:
EditorsEmail
UNSPECIFIEDMultidisciplinary Digital Publishing Institute
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:MDPI Electrical Power and Energy System
ISSN:1996-1073
Status:Published
Keywords:power grid modelling; transmission grid planning; distribution grid planning; optimization; linear optimal power flow; power flow; grid expansion; storage expansion; renewable energy
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 - Systems Analysis and Technology Assessment
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Energy Systems Analysis
Deposited By: Bartels, Julian
Deposited On:14 Aug 2019 18:43
Last Modified:21 Sep 2019 05:05

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