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 language | English |
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Title of host publication | Proceedings of IEEE PES PowerTech 2019 |
Number of pages | 6 |
Publisher | IEEE |
Publication date | 2020 |
ISBN (Electronic) | 978-1-5386-4722-6 |
DOIs | |
Publication status | Published - 2020 |
Event | 13th IEEE PowerTech Milano 2019: Leading innovation for energy transition - Bovisa Campus of Politecnico di Milano, Milano, Italy Duration: 23 Jun 2019 → 27 Jun 2019 Conference number: 13 http://ieee-powertech.org/ |
Conference
Conference | 13th IEEE PowerTech Milano 2019 |
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Number | 13 |
Location | Bovisa Campus of Politecnico di Milano |
Country/Territory | Italy |
City | Milano |
Period | 23/06/2019 → 27/06/2019 |
Other | PowerTech 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