Coordination of Electricity, Heat, and Natural Gas Systems Accounting for Network Flexibility

Anna Schwele, Adriano Arrigo, Charlotte Vervaeren, Jalal Kazempour, François Vallée

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Abstract

Existing energy networks can foster the integration of uncertain and variable renewable energy sources by providing additional operational flexibility. In this direction, we propose a combined power, heat, and natural gas dispatch model to reveal the maximum potential “network flexibility”, corresponding to the ability of natural gas and district heating pipelines to store energy. To account for both energy transport and linepack in the pipelines in a computational efficient manner, we explore convex quadratic relaxations of the nonconvex flow dynamics of gas and heat. The resulting model is a mixed-integer secondorder cone program. An ex-post analysis ensures feasibility of the heat dispatch, while keeping the relaxation of the gas flow model sufficiently tight. The revealed flexibility is quantified in terms of system cost compared to a dispatch model neglecting the ability of natural gas and district heating networks to store energy.
Original languageEnglish
Article number106776
JournalElectric Power Systems Research
Volume189
Number of pages7
ISSN0378-7796
DOIs
Publication statusPublished - 2020
EventXXI Power Systems Computation Conference - ONLINE EVENT, Porto, Portugal
Duration: 29 Jun 20203 Jul 2020
Conference number: 21
https://pscc2020.pt/

Conference

ConferenceXXI Power Systems Computation Conference
Number21
LocationONLINE EVENT
CountryPortugal
CityPorto
Period29/06/202003/07/2020
Internet address

Bibliographical note

Online Companion: 10.5281/zenodo.3463160

Keywords

  • Combined power-heat-gas dispatch
  • Convex relaxation
  • Ex-post feasibility analysis
  • Multi-energy systems
  • Second-order cone program

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