Dynamic optimal energy flow of integrated electricity and gas systems in continuous space

Suhan Zhang, Shibo Chen, Wei Gu, Shuai Lu and Chi Yung Chung

Applied Energy, 2024, vol. 375, issue C, No S0306261924014351

Abstract: The intrinsic flexibility of integrated electricity and gas systems (IEGSs) hinges on the gas flow dynamics dictated by partial differential equations (PDEs). However, conventional numerical approaches for PDEs grapple with inefficiencies and inaccuracies for operational analysis, chiefly due to the discretization of PDE invoked. For the first time, this study pioneers an analytical methodology for IEGS's analysis, effectively eliminating the pitfalls of discretization in solving gas flow dynamics. Based on this, the dynamic optimal energy flow problem in IEGS is reformulated in continuous space, significantly simplifying complex models while bolstering analytical precision. Case studies affirm the remarkable advantages of the proposed analytical approach. Under comparable scenarios, the proposed method improves computational efficiency dozens of times and exhibits concurrently heightened levels of accuracy.

Keywords: Integrated electricity and gas system; Dynamic optimal energy flow; gas flow dynamics; Partial differential equation; Analytical method (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2024.124052

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