A novel dynamic simulation approach for Gas-Heat-Electric coupled system

Aobo Guan, Suyang Zhou, Wei Gu, Zhong Liu and Hengmen Liu

Applied Energy, 2022, vol. 315, issue C, No S0306261922004081

Abstract: Dynamic simulation of Gas-Heat-Electric Coupled System (GHECS) can accurately describe the operation state of networks and equipment of the system, which can support the analysis of the stability and safety of GHECS. However, differences among simulation time-step of subsystems, computational complexities and lengthy simulation time make it difficult to precisely simulate the coupled system. To solve the aforementioned problems, this paper establishes a novel parameter interaction framework for simulating the GHECS and proposes a system decoupling methodology and simulation sequence determination approach. A variable time-step solving strategy is also introduced to balance the simulation accuracy and efficiency. To validate the proposed methodology, comprehensive analysis of various cases on a 53-node testbed is presented. Results prove that the dynamic simulation can precisely describe 740 s heat transfer delay and 1015 s dynamic response time, and the variable time-step solving strategy can improve the simulation accuracy by 1.7%.

Keywords: Dynamic Simulation; GHECS; Parameter Interaction Framework; System Decoupling Methodology; Simulation Sequence Determination Approach; Variable Time-Step Solving Strategy (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2022.118999

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