Fast calculation of electromagnetic-thermal-fulid multiphysics coupling of GIL based on hybrid model

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2024-09-21 DOI:10.1016/j.epsr.2024.111074

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引用次数: 0

Abstract

To ensure the reliability and stability of gas-insulated transmission lines(GIL) operation, it is crucial to accurately calculate the temperature distribution. This paper proposes a fast calculation method for GIL electromagnetic-thermal-fluid multiphysics coupling based on hybrid mesh and hybrid dimension (HMHD), including degree of freedom constraints that considering operational and structural characteristics.The proposed method couples a 3D electromagnetic field with a 2D temperature field, maintaining 3D model accuracy while having faster computational speed. Compared with traditional methods, the HMHD has further merits in mesh generation, degree of freedom reduction, and lower computational cost. At same time, it simplifies programming and facilitates the handling of boundary conditions. Both numerical simulations and experimental data demonstrate the feasibility and accuracy of the HMHD method. This study introduces a novel approach for the multiphysics coupling calculation of GIL, with a particular emphasis on its advantages in large-scale computations.

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基于混合模型的 GIL 电磁-热-流体多物理场耦合快速计算

为确保气体绝缘输电线路（GIL）运行的可靠性和稳定性，精确计算温度分布至关重要。本文提出了一种基于混合网格和混合维数（HMHD）的 GIL 电磁-热-流体多物理场耦合快速计算方法，包括考虑运行和结构特性的自由度约束。与传统方法相比，HMHD 在网格生成、减少自由度和降低计算成本方面有更多优势。同时，它还简化了编程，方便了边界条件的处理。数值模拟和实验数据都证明了 HMHD 方法的可行性和准确性。本研究介绍了一种用于 GIL 多物理场耦合计算的新方法，特别强调了该方法在大规模计算中的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.