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Two-stage distributionally robust coordinated scheduling for gas-electricity integrated energy system considering wind power uncertainty and reserve capacity configuration

Yachao Zhang, Jian Le, Feng Zheng, Yi Zhang and Kaipei Liu

Renewable Energy, 2019, vol. 135, issue C, 122-135

Abstract: As the interdependency between natural gas system and power system is significantly close and the integration of renewable energy with uncertainty and volatility greatly increased in the last decades, the operation security and economics of the gas-electricity integrated energy system has attracted growing concerns. A two-stage distributionally robust optimization (DRO) model is proposed to study the coordination optimization scheduling for this multi-energy coupled system considering wind power uncertainty. Integrating the advantages of stochastic programming and traditional adjustable robust optimization (ARO), DRO aims to minimize the expectation of the operation cost under the worst-case distribution over an ambiguity set. The operation constraints of the above two energy subsystems are fully considered, moreover, the feasibility check subproblem for the reserve capacity configuration by gas-fired units is built. As a result, the DRO model is solved in a master-subproblem framework. A case study is implemented on a 6-bus power system with a 7-node natural gas system to demonstrate the superiority of the proposed DRO model compared to the existing ARO and data-driven DRO models. Furthermore, the modified IEEE 24-bus system with a 10-node gas system is used to verify the effectiveness and practicability of the proposed model.

Keywords: Distributionally robust optimization; Wind power uncertainty; Gas and electricity integrated system; Coordination operation (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (22)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:135:y:2019:i:c:p:122-135

DOI: 10.1016/j.renene.2018.11.094

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