西安交通大学电气工程学院,710049,西安
广西大学电气工程学院,530004,南宁
作者简介:李元(1984—),男,副教授,博士生导师。
收稿:2025-06-07,
纸质出版:2026-03-10
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李元, 陈智秋, 刘志濠, 等. 伴随网格自适应剖分优化变压器内部温度仿真模型计算效率方法[J]. 西安交通大学学报, 2026,60(3):166-174.
LI Yuan, CHEN Zhiqiu, LIU Zhihao, et al. Adjoint-Based Adaptive Mesh Refinement Method for Optimizing Computational Efficiency of Transformer Internal Temperature Simulation Models[J]. Journal of Xi'an Jiaotong University, 2026, 60(3): 166-174.
李元, 陈智秋, 刘志濠, 等. 伴随网格自适应剖分优化变压器内部温度仿真模型计算效率方法[J]. 西安交通大学学报, 2026,60(3):166-174. DOI: 10.7652/xjtuxb202603016.
LI Yuan, CHEN Zhiqiu, LIU Zhihao, et al. Adjoint-Based Adaptive Mesh Refinement Method for Optimizing Computational Efficiency of Transformer Internal Temperature Simulation Models[J]. Journal of Xi'an Jiaotong University, 2026, 60(3): 166-174. DOI: 10.7652/xjtuxb202603016.
针对变压器热-流场耦合仿真计算效率低的问题,提出一种基于伴随网格自适应剖分的优化方法。首先,以110 kV油浸自冷式变压器作为研究对象,建立其二维全尺寸闭环热-流场仿真模型,采用有限体积法求解温度场与油流场分布。然后,基于伴随误差估计方法构建变压器热-流场误差指示器,制定网格自适应剖分策略,实现仿真区域网格的自适应加密。最后,将网格自适应剖分方法应用于三角形和四边形主导网格的热-流场数值计算模型,对比验证所提方法的有效性及适用性。结果表明:伴随网格自适应剖分方法可在保证计算准确性的基础上显著提高热-流场耦合仿真模型的计算效率,仿真用时减少50%以上,且计算误差不超过6%,适用于不同类型的二维网格,对三角形网格的优化效果尤佳。
To address the low computational efficiency in thermal-fluid coupling simulations of transformers
an optimization method based on adjoint-based adaptive mesh refinement is proposed.Firstly
a 110 kV oil-immersed self-cooled transformer is investigated
and a twodimensional full-scale closed-loop thermal-fluid coupling simulation model is established.The finite volume method is employed to solve the temperature field and oil flow field distributions. Then
an error indicator for the thermal-fluid coupling of the transformer is constructed based on the adjoint error estimation method
and a mesh adaptive refinement strategy is formulated to achieve adaptive mesh encryption in the simulation region.Finally
the adaptive mesh refinement method is applied to thermal-fluid coupling numerical calculation models dominated by triangular and quadrilateral meshes
and the effectiveness and applicability of the proposed method are verified through comparative analysis.The results show that the adjoint-based adaptive mesh refinement method significantly improves the computational efficiency of thermal-fluid coupling simulation models while ensuring calculation accuracy
reducing simulation time by over 50% with a computational error no more than 6%.This method is applicable to different types of twodimensional meshes
with particularly notable optimization effects for triangular meshes.
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