湖南电力 ›› 2025, Vol. 45 ›› Issue (5): 117-123.doi: 10.3969/j.issn.1008-0198.2025.05.016

• 电力人工智能与数字化 • 上一篇    下一篇

基于热和几何信息解耦的变电站表面温度分布三维建模方法

康文, 丁玉柱, 邓维, 钟昱铭, 唐江琦   

  1. 国网湖南省电力有限公司超高压变电公司, 湖南 长沙 410004
  • 收稿日期:2025-06-30 修回日期:2025-08-08 发布日期:2025-11-11
  • 通信作者: 丁玉柱(1986),男,高级工程师,研究方向为电力设备带电检测。
  • 基金资助:
    国网湖南省电力有限公司实验室专项(5216A324000B); 国家自然科学基金青年项目(62106072)

A Three-Dimensional Modeling Method of Substation Surface Temperature Distribution Based on Decoupling of Thermal and Geometric Information

KANG Wen, DING Yuzhu, DENG Wei, ZHONG Yuming, TANG Jiangqi   

  1. State Grid Hunan Extra High Voltage Substation Company, Changsha 410004, China
  • Received:2025-06-30 Revised:2025-08-08 Published:2025-11-11

摘要: 针对传统变电站三维温度重建技术不仅依赖高精度激光雷达的点云补全及三维扫描技术,还常出现点云密度不足、外观表征失真等问题,基于红外图像低纹理、高噪声的固有特性,提出基于红外影像的双路径三维建模体系。该体系通过热结构特征与几何先验的跨域融合,结合三维高斯泼溅算法实现高密度温度分布重建,最终生成变电站场景及设备三维模型,既实现了高密度温度分布重建,又具备极高的形貌还原度,与现有方法相比,模型精度提升约5%。该方法能够实现变电站三维温度重建效果升级,提升变电站三维温度重建的智能运检能力。

关键词: 变电站, 三维温度重建, 三维高斯泼溅

Abstract: Aiming at the limitations that the traditional substation three-dimensional temperature re?construction technology not only relies on high-precision laser radar point cloud completion and three?-?dimensional scanning technology, but also frequently encounters issues such as insufficient point cloud density and distortion of appearance representation, given the inherent characteristics of infrared images of low textures and high noise, a dual-path three-dimensional modeling system based on infrared images is proposed. This system completes high-density temperature distribution reconstruction through the cross?-domain fusion of thermal structural features and geometric priors, combined with a three?-dimensional Gaussian splatting algorithm, ultimately generating three-dimensional models of substation scenes and equipment that achieve high-density temperature distribution reconstruction while maintaining extremely high morphological fidelity. Compared with existing methods, the model accuracy is improved by about 5%. The method proposed in this paper can achieve an upgrade in three-dimensional temperature reconstruction effects for substations, enhancing the intelligent operational inspection capabilities of substations.

Key words: substation, three-dimensional(3D) temperature reconstruction, three-dimensional(3D) Gaussian splatting

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