Adaptive robust energy and reserve co-optimization of integrated electricity and heating system considering wind uncertainty

Jin Tan, Qiuwei Wu*, Qinran Hu, Wei Wei, Feng Liu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The uncertainty and variability of wind power pose significant challenges to secure and reliable operation of power systems. Coordinated operation of the electric power system and district heating system, which can provide sufficient reserve capacity and flexibility, is an effective way to cope with the uncertainty. This paper proposes an adaptive robust energy and reserve co-optimization for the integrated electricity and heat system to minimize the total system cost under the worst-case realization of wind uncertainty considering spatial correlations of wind uncertainties. The available reserve capacity and flexibility provided by the district heating system is fully used by exploiting the regulation capabilities of combined heat and power units and electrical boilers, as well as utilizing the building thermal inertia. To reduce the conservatism of the robust solution, the spatial correlation of wind uncertainties is considered in the uncertainty set. The column-and-constraint generation algorithm is adopted to solve the adaptive robust model iteratively by reformulating the second stage with its Karush-Kuhn-Tucker conditions. Simulation results demonstrate that the economic efficiency is improved by utilizing the reserve flexibility from the district heating system and considering wind farm spatial correlations. Compared with the conventional single-stage optimized model, the feasibility of the two-stage robust solution is always guaranteed by considering the real-time operation constraints of the electric power system and district heating system.

Original languageEnglish
Article number114230
JournalApplied Energy
Volume260
Number of pages10
ISSN0306-2619
DOIs
Publication statusPublished - 15 Feb 2020

Keywords

  • Adaptive robust optimization
  • Energy and reserve co-optimization
  • Integrated electricity and heating system
  • Wind power uncertainty

Cite this

@article{5b88051e8fa54ca4bdd62156b3851219,
title = "Adaptive robust energy and reserve co-optimization of integrated electricity and heating system considering wind uncertainty",
abstract = "The uncertainty and variability of wind power pose significant challenges to secure and reliable operation of power systems. Coordinated operation of the electric power system and district heating system, which can provide sufficient reserve capacity and flexibility, is an effective way to cope with the uncertainty. This paper proposes an adaptive robust energy and reserve co-optimization for the integrated electricity and heat system to minimize the total system cost under the worst-case realization of wind uncertainty considering spatial correlations of wind uncertainties. The available reserve capacity and flexibility provided by the district heating system is fully used by exploiting the regulation capabilities of combined heat and power units and electrical boilers, as well as utilizing the building thermal inertia. To reduce the conservatism of the robust solution, the spatial correlation of wind uncertainties is considered in the uncertainty set. The column-and-constraint generation algorithm is adopted to solve the adaptive robust model iteratively by reformulating the second stage with its Karush-Kuhn-Tucker conditions. Simulation results demonstrate that the economic efficiency is improved by utilizing the reserve flexibility from the district heating system and considering wind farm spatial correlations. Compared with the conventional single-stage optimized model, the feasibility of the two-stage robust solution is always guaranteed by considering the real-time operation constraints of the electric power system and district heating system.",
keywords = "Adaptive robust optimization, Energy and reserve co-optimization, Integrated electricity and heating system, Wind power uncertainty",
author = "Jin Tan and Qiuwei Wu and Qinran Hu and Wei Wei and Feng Liu",
year = "2020",
month = "2",
day = "15",
doi = "10.1016/j.apenergy.2019.114230",
language = "English",
volume = "260",
journal = "Applied Energy",
issn = "0306-2619",
publisher = "Pergamon Press",

}

Adaptive robust energy and reserve co-optimization of integrated electricity and heating system considering wind uncertainty. / Tan, Jin; Wu, Qiuwei; Hu, Qinran; Wei, Wei; Liu, Feng.

In: Applied Energy, Vol. 260, 114230, 15.02.2020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Adaptive robust energy and reserve co-optimization of integrated electricity and heating system considering wind uncertainty

AU - Tan, Jin

AU - Wu, Qiuwei

AU - Hu, Qinran

AU - Wei, Wei

AU - Liu, Feng

PY - 2020/2/15

Y1 - 2020/2/15

N2 - The uncertainty and variability of wind power pose significant challenges to secure and reliable operation of power systems. Coordinated operation of the electric power system and district heating system, which can provide sufficient reserve capacity and flexibility, is an effective way to cope with the uncertainty. This paper proposes an adaptive robust energy and reserve co-optimization for the integrated electricity and heat system to minimize the total system cost under the worst-case realization of wind uncertainty considering spatial correlations of wind uncertainties. The available reserve capacity and flexibility provided by the district heating system is fully used by exploiting the regulation capabilities of combined heat and power units and electrical boilers, as well as utilizing the building thermal inertia. To reduce the conservatism of the robust solution, the spatial correlation of wind uncertainties is considered in the uncertainty set. The column-and-constraint generation algorithm is adopted to solve the adaptive robust model iteratively by reformulating the second stage with its Karush-Kuhn-Tucker conditions. Simulation results demonstrate that the economic efficiency is improved by utilizing the reserve flexibility from the district heating system and considering wind farm spatial correlations. Compared with the conventional single-stage optimized model, the feasibility of the two-stage robust solution is always guaranteed by considering the real-time operation constraints of the electric power system and district heating system.

AB - The uncertainty and variability of wind power pose significant challenges to secure and reliable operation of power systems. Coordinated operation of the electric power system and district heating system, which can provide sufficient reserve capacity and flexibility, is an effective way to cope with the uncertainty. This paper proposes an adaptive robust energy and reserve co-optimization for the integrated electricity and heat system to minimize the total system cost under the worst-case realization of wind uncertainty considering spatial correlations of wind uncertainties. The available reserve capacity and flexibility provided by the district heating system is fully used by exploiting the regulation capabilities of combined heat and power units and electrical boilers, as well as utilizing the building thermal inertia. To reduce the conservatism of the robust solution, the spatial correlation of wind uncertainties is considered in the uncertainty set. The column-and-constraint generation algorithm is adopted to solve the adaptive robust model iteratively by reformulating the second stage with its Karush-Kuhn-Tucker conditions. Simulation results demonstrate that the economic efficiency is improved by utilizing the reserve flexibility from the district heating system and considering wind farm spatial correlations. Compared with the conventional single-stage optimized model, the feasibility of the two-stage robust solution is always guaranteed by considering the real-time operation constraints of the electric power system and district heating system.

KW - Adaptive robust optimization

KW - Energy and reserve co-optimization

KW - Integrated electricity and heating system

KW - Wind power uncertainty

U2 - 10.1016/j.apenergy.2019.114230

DO - 10.1016/j.apenergy.2019.114230

M3 - Journal article

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VL - 260

JO - Applied Energy

JF - Applied Energy

SN - 0306-2619

M1 - 114230

ER -