Coordination of Power and Natural Gas Systems: Convexification Approaches for Linepack Modeling

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Abstract

Utilizing operational flexibility from natural gas networks can foster the integration of uncertain and variable renewable power production. We model a combined power and natural gas dispatch to reveal the maximum potential of linepack, i.e., energy storage in the pipelines, as a source of flexibility for the power system. The natural gas flow dynamics are approximated by a combination of steady-state equations and varying incoming and outgoing flows in the pipelines to account for both natural gas transport and linepack. This steadystate natural gas flow results in a nonlinear and nonconvex formulation. To cope with the computational challenges, we explore convex quadratic relaxations and linear approximations. We propose a novel mixed-integer second-order cone formulation including McCormick relaxations to model the bidirectional natural gas flow accounting for linepack. Flexibility is quantified in terms of system cost compared to a dispatch model that either neglects linepack or assumes infinite storage capability
Original languageEnglish
Title of host publicationProceedings of IEEE PES PowerTech 2019
Number of pages6
PublisherIEEE
Publication statusAccepted/In press - 2019
Event13th IEEE PowerTech Milano 2019: Leading innovation for energy transition - Bovisa Campus of Politecnico di Milano, Milano, Italy
Duration: 23 Jun 201927 Jun 2019
Conference number: 13
http://ieee-powertech.org/

Conference

Conference13th IEEE PowerTech Milano 2019
Number13
LocationBovisa Campus of Politecnico di Milano
CountryItaly
CityMilano
Period23/06/201927/06/2019
OtherPowerTech is the anchor conference of the IEEE Power & Energy Society (PES) in Europe
Internet address

Keywords

  • Combined power and natural gas dispatch
  • Convexification
  • McCormick relaxation
  • Second-order cone program
  • Steady-state gas flow

Cite this

@inproceedings{a7528d01818b4372bcd686b76453cac5,
title = "Coordination of Power and Natural Gas Systems: Convexification Approaches for Linepack Modeling",
abstract = "Utilizing operational flexibility from natural gas networks can foster the integration of uncertain and variable renewable power production. We model a combined power and natural gas dispatch to reveal the maximum potential of linepack, i.e., energy storage in the pipelines, as a source of flexibility for the power system. The natural gas flow dynamics are approximated by a combination of steady-state equations and varying incoming and outgoing flows in the pipelines to account for both natural gas transport and linepack. This steadystate natural gas flow results in a nonlinear and nonconvex formulation. To cope with the computational challenges, we explore convex quadratic relaxations and linear approximations. We propose a novel mixed-integer second-order cone formulation including McCormick relaxations to model the bidirectional natural gas flow accounting for linepack. Flexibility is quantified in terms of system cost compared to a dispatch model that either neglects linepack or assumes infinite storage capability",
keywords = "Combined power and natural gas dispatch, Convexification, McCormick relaxation, Second-order cone program, Steady-state gas flow",
author = "Anna Schwele and Christos Ordoudis and Jalal Kazempour and Pierre Pinson",
year = "2019",
language = "English",
booktitle = "Proceedings of IEEE PES PowerTech 2019",
publisher = "IEEE",
address = "United States",

}

Schwele, A, Ordoudis, C, Kazempour, J & Pinson, P 2019, Coordination of Power and Natural Gas Systems: Convexification Approaches for Linepack Modeling. in Proceedings of IEEE PES PowerTech 2019. IEEE, 13th IEEE PowerTech Milano 2019, Milano, Italy, 23/06/2019.

Coordination of Power and Natural Gas Systems: Convexification Approaches for Linepack Modeling. / Schwele, Anna; Ordoudis, Christos; Kazempour, Jalal; Pinson, Pierre.

Proceedings of IEEE PES PowerTech 2019. IEEE, 2019.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

TY - GEN

T1 - Coordination of Power and Natural Gas Systems: Convexification Approaches for Linepack Modeling

AU - Schwele, Anna

AU - Ordoudis, Christos

AU - Kazempour, Jalal

AU - Pinson, Pierre

PY - 2019

Y1 - 2019

N2 - Utilizing operational flexibility from natural gas networks can foster the integration of uncertain and variable renewable power production. We model a combined power and natural gas dispatch to reveal the maximum potential of linepack, i.e., energy storage in the pipelines, as a source of flexibility for the power system. The natural gas flow dynamics are approximated by a combination of steady-state equations and varying incoming and outgoing flows in the pipelines to account for both natural gas transport and linepack. This steadystate natural gas flow results in a nonlinear and nonconvex formulation. To cope with the computational challenges, we explore convex quadratic relaxations and linear approximations. We propose a novel mixed-integer second-order cone formulation including McCormick relaxations to model the bidirectional natural gas flow accounting for linepack. Flexibility is quantified in terms of system cost compared to a dispatch model that either neglects linepack or assumes infinite storage capability

AB - Utilizing operational flexibility from natural gas networks can foster the integration of uncertain and variable renewable power production. We model a combined power and natural gas dispatch to reveal the maximum potential of linepack, i.e., energy storage in the pipelines, as a source of flexibility for the power system. The natural gas flow dynamics are approximated by a combination of steady-state equations and varying incoming and outgoing flows in the pipelines to account for both natural gas transport and linepack. This steadystate natural gas flow results in a nonlinear and nonconvex formulation. To cope with the computational challenges, we explore convex quadratic relaxations and linear approximations. We propose a novel mixed-integer second-order cone formulation including McCormick relaxations to model the bidirectional natural gas flow accounting for linepack. Flexibility is quantified in terms of system cost compared to a dispatch model that either neglects linepack or assumes infinite storage capability

KW - Combined power and natural gas dispatch

KW - Convexification

KW - McCormick relaxation

KW - Second-order cone program

KW - Steady-state gas flow

M3 - Article in proceedings

BT - Proceedings of IEEE PES PowerTech 2019

PB - IEEE

ER -