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乡村高压电线防风和增容技术融合研究

Research on the Integration of Windproof and Capacity Enhancement Technologies for Rural High-voltage Power Lines

  • 摘要: 随着农产品加工、乡村旅游和农村电商等产业落地,乡村电力需求急剧增长。原有高压导线载流量难以满足新兴的用电需求,同时高压导线通常经过山顶受大风影响容易发生断线,有必要研究新型导线来替换普通钢芯铝绞线来提升输送容量和抵御山风。本文设计出融合防风和增容两种技术的新型导线,凹槽导线表面有利于疏通气流,改变铝导体微量元素配比有利于更好地导通电流,同时系统新地设计新型线夹以兼容新型导线。通过仿真计算和试验,结果表明新型导线较普通钢芯铝绞线风阻系数降低 47.6% ,同截面的载流量增加 32.6% ,配套线夹使应力集中系数下降 41.2%。可为乡村导线选型提供兼顾防风和增容的系统解决方案,为乡村产业发展提供充足电力保障。

     

    Abstract: With the implementation of industries such as agricultural product processing, rural tourism, and rural e-commerce, the demand for electricity in rural areas has surged dramatically. The current-carrying capacity of existing high-voltage conductors is insufficient to meet the emerging electricity demand. Meanwhile, high-voltage conductors typically pass through mountain tops and are prone to breakage under strong winds. Thus, it is imperative to develop new types of conductors to replace conventional steel-cored aluminum stranded wires, thereby enhancing transmission capacity and improving resistance to mountain winds.This paper designs a novel conductor that integrates wind-resistant and capacity-increasing technologies. The grooved surface of the conductor facilitates airflow flow-through distribution, while the optimized trace element composition of the aluminum conductor improves electrical conductivity. Additionally, a new type of clamp is systematically designed to be compatible with the novel conductor. Through simulation calculations and experimental tests, the results demonstrate that compared with conventional steel-cored aluminum stranded wires, the novel conductor reduces the wind resistance coefficient by 47.6% and increases the current-carrying capacity of the same cross-section by 32.6%. The supporting clamp reduces the stress concentration coefficient by 41.2%. This study provides a systematic solution that balances wind resistance and capacity increase for rural conductor selection, and offers sufficient electrical support for rural industrial development.

     

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