Direct current gil three-column insulator optimization method, device and equipment

By establishing a coupled calculation model and optimizing it using a genetic algorithm, the problem of insufficient consideration of the multi-field coupling of electricity, heat, and force in the existing technology was solved. This enabled accurate optimization of the DC GIL three-post insulator, improving its performance and reliability under complex working conditions.

CN122413833APending Publication Date: 2026-07-17TSINGHUA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIVERSITY
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies for DC transmission systems, the structural optimization of GIL three-post insulators has failed to fully consider the multi-field coupling effects of electricity, heat, and force, resulting in deviations between the optimization results and actual operating conditions.

Method used

A coupled calculation model of a DC GIL three-post insulator was established. Through coupled simulation of electric field, thermal field and force field, the distribution data of temperature, electric field and stress were obtained. Based on the genetic algorithm, the geometric structure and material parameters were optimized to achieve comprehensive consideration of the coupling effects of multiple physics fields.

Benefits of technology

It improves the overall performance and operational reliability of insulators under complex operating conditions, reduces the risk of electric field distortion and structural failure, and enhances the accuracy and comprehensiveness of simulation.

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Abstract

本申请涉及电力装备设计技术领域,特别涉及一种直流GIL三支柱绝缘子优化方法、装置及设备,其中,方法包括:建立直流GIL三支柱绝缘子的耦合计算模型;基于耦合计算模型对直流GIL三支柱绝缘子进行电场、热场与力场之间的耦合仿真,获取耦合仿真得到温度、电场与应力的分布数据;根据温度、电场与应力的分布数据优化直流GIL三支柱绝缘子的几何结构与绝缘子材料的体电导率。由此,解决了相关技术通常基于单一电场或静态工况开展结构优化,未充分考虑多物理场耦合作用下结构变形对电场分布的反馈影响,导致优化结果与实际运行工况之间存在偏差等问题。
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