Flexible Dispatch for Integrated Power and Gas Systems Considering Power-to-Gas and Demand Response

Jiandong Duan, Fan Liu, Yao Yang and Zhuanting Jin
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Jiandong Duan: School of Electrical Engineering, Xi’an University of Technology, Xi’an 710048, China
Fan Liu: School of Electrical Engineering, Xi’an University of Technology, Xi’an 710048, China
Yao Yang: School of Electrical Engineering, Xi’an University of Technology, Xi’an 710048, China
Zhuanting Jin: State Grid Baoji Power Supply Corporation, Baoji 721004, China

Energies, 2021, vol. 14, issue 17, 1-26

Abstract: Aiming at the problem of insufficient flexibility of the power system caused by large-scale wind power grid integration, a flexible economic dispatch model of the electricity-gas integrated system that considers power-to-gas and demand responses is proposed. First, it elaborates on the scheduling flexibility and demand response model. Secondly, the power system and the natural gas system are regarded as different stakeholders; with the goal of minimizing their respective operating costs, a two-tier distributed coordination optimization model of electricity and gas system is established. In order to achieve the coordination and optimization of the upper and lower systems, slack variables are introduced to describe the infeasible part of the power system scheduling results in the natural gas system and are used for interactive iterative solution of the model. The numerical results of the revised IEEE 30-node power system and 10-node natural gas system illustrate the effectiveness and necessity of the proposed model, as well as the superiority of comprehensively considering power-to-gas and demand response in improving the flexibility and economy of the power system.

Keywords: coordinated optimization; demand response; flexibility; integrated power and gas systems; power-to-gas (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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