Journal article
An Integrated Market for Electricity and Natural Gas Systems with Stochastic Power Producers
Department of Electrical Engineering, Technical University of Denmark1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Energy Analytics and Markets, Center for Electric Power and Energy, Centers, Technical University of Denmark3
University of Málaga4
CITIES - Centre for IT-Intelligent Energy Systems, Centers, Technical University of Denmark5
In energy systems with high shares of weather-driven renewable power sources, gas-fired power plants can serve as a back-up technology to ensure security of supply and provide short-term flexibility. Therefore, a tighter coordination between electricity and natural gas networks is foreseen. In this work, we examine different levels of coordination in terms of system integration and time coupling of trading floors.
We propose an integrated operational model for electricity and natural gas systems under uncertain power supply by applying two-stage stochastic programming. This formulation co-optimizes day-ahead and real-time dispatch of both energy systems and aims at minimizing the total expected cost. Additionally, two deterministic models, one of an integrated energy system and one that treats the two systems independently, are presented.
We utilize a formulation that considers the linepack of the natural gas system, while it results in a tractable mixed-integer linear programming (MILP) model. Our analysis demonstrates the effectiveness of the proposed model in accommodating high shares of renewables and the importance of proper natural gas system modeling in short-term operations to reveal valuable flexibility of the natural gas system.
Moreover, we identify the coordination parameters between the two markets and show their impact on the system’s operation and dispatch.
Language: | English |
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Year: | 2019 |
Pages: | 642-654 |
ISSN: | 18726860 and 03772217 |
Types: | Journal article |
DOI: | 10.1016/j.ejor.2018.06.036 |
ORCIDs: | Ordoudis, Christos , 0000-0002-9114-686X and Pinson, Pierre |
Electricity and natural gas markets coordination Integrated energy systems OR in energy Renewable energy SDG 7 - Affordable and Clean Energy Stochastic Programming