摘 要
特高压输电线路作为现代电力系统的重要组成部分，其绝缘性能直接影响电网的安全稳定运行。随着全球能源需求的不断增长和长距离电力输送技术的发展，研究特高压输电线路的绝缘性能及其防护措施具有重要意义。本研究以提升特高压输电线路绝缘性能为目标，通过理论分析、数值模拟与现场试验相结合的方法，深入探讨了环境因素、材料特性及运行条件对绝缘性能的影响机制。研究采用新型复合绝缘材料，并结合多物理场耦合仿真技术，评估了不同工况下的绝缘失效风险，提出了针对性的防护策略。结果表明，优化后的绝缘结构在高海拔、强污秽等复杂环境下表现出显著的耐受能力提升，且所提出的防护措施有效降低了闪络概率，延长了设备使用寿命。本研究的创新点在于首次将智能监测技术引入绝缘性能评估体系，实现了对绝缘状态的实时监控与预警，为特高压输电线路的安全运维提供了技术支持。研究成果不仅为相关工程设计提供了理论依据，还为未来高电压等级输电技术的发展奠定了基础。
关键词：特高压输电线路；绝缘性能；防护措施；复合绝缘材料；智能监测技术
ABSTRACT
UHV (Ultra High Voltage) transmission lines, as a critical component of modern power systems, have insulation performance that directly impacts the safe and stable operation of the grid. With the continuous growth in global energy demand and the development of long-distance power transmission technology, researching the insulation performance of UHV transmission lines and their protective measures holds significant importance. This study aims to enhance the insulation performance of UHV transmission lines by integrating theoretical analysis, numerical simulation, and field experiments to thoroughly investigate the influence mechanisms of environmental factors, material properties, and operational conditions on insulation performance. The research employs novel composite insulating materials and combines multiphysics coupling simulation techniques to evaluate insulation failure risks under various operating conditions, proposing targeted protective strategies accordingly. Results indicate that the optimized insulation structure demonstrates markedly improved tolerance in complex environments such as high altitudes and severe contamination, while the proposed protective measures effectively reduce the probability of flashover and extend the service life of equipment. An innovation of this study lies in the first-time integration of intelligent monitoring technology into the insulation performance evaluation system, enabling real-time monitoring and early warning of insulation status, thereby providing technical support for the safe operation and maintenance of UHV transmission lines. The research findings not only offer theoretical foundations for relevant engineering designs but also lay groundwork for the future development of high-voltage transmission technologies.
Keywords: Ultra-High Voltage Transmission Line; Insulation Performance; Protective Measures; Composite Insulating Material; Intelligent Monitoring Technology
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 特高压输电线路绝缘性能的研究背景 1
1.2 特高压输电线路防护措施的意义分析 1
1.3 国内外研究现状与发展趋势 2
1.4 本文研究方法与技术路线 2
第2章 特高压输电线路绝缘性能的基础理论 3
2.1 绝缘材料的特性与分类 3
2.2 绝缘性能的影响因素分析 3
2.3 特高压环境下的绝缘失效机制 4
2.4 绝缘性能评估的关键指标体系 4
2.5 理论模型在绝缘性能研究中的应用 5
第3章 特高压输电线路绝缘性能的实验研究 6
3.1 实验平台的设计与搭建 6
3.2 绝缘材料的耐压性能测试方法 6
3.3 不同工况下绝缘性能的变化规律 7
3.4 数据分析与结果验证 7
3.5 实验研究对防护措施的启示 8
第4章 特高压输电线路的防护措施优化策略 9
4.1 防护措施的基本原则与目标 9
4.2 外部环境对防护措施的影响分析 9
4.3 新型防护材料的应用与效果评估 10
4.4 智能监测技术在防护中的作用 10
4.5 防护措施的经济性与可行性分析 11
结论 12
参考文献 13
致 谢 14
