| 绞合型碳纤维复合芯软型铝绞线在线路增容工程中的应用 |
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| 作者姓名： | 朱文卫 郭金根 梁爱武 陈锟 王清明 |
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| 作者单位： | 广东电网公司电网规划研究中心,广州 510080;佛冈鑫源恒业电缆科技有限公司,清远 511600 |
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| 基金项目： | 广东电网公司科技项目“高压电缆系统可靠性评估及智能巡检技术研究—课题2:基于多状态量的高压电缆系统绝缘状况评估”GDKJXM20172797 |
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| 摘 要： | 目的] 为解决某220 kV线路增容问题，在工程设计阶段，对常规导线和多种耐热导线进行综合比选。 方法] 分析了要求输送容量下各型导线的最高运行温度；对比了机械荷载和导线弧垂变化对杆塔基础的影响；计算了不同导线的电能损耗；分析对比了施工运维和建设难度；从一次性投资和年费用上进行经济分析。 结果] 结果显示:在满足输送容量和导线允许温度的情况下，常规导线方案需全线拆除并新建杆塔和基础；各型耐热导线弧垂和荷载均满足原线路设计条件；常规导线和绞合型碳纤维复合芯软型铝绞线的年费用较低,运维相对便利。 结论] 绞合型碳纤维复合芯软型铝绞线综合性能较优，适用于利用已有线路杆塔实现线路增容的场合，尤其是在城区或近郊等新建杆塔较为困难的地方。
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| 关 键 词： | 绞合型碳纤维导线 线路增容 耐热导线 架空线路 工程应用 |
| 收稿时间： | 2019-06-24 |
Application of Aluminum Conductor Multi-strand Carbon Fiber Core in Transmission Capacity Improvement Project |
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| Affiliation: | 1.Grid Planning & Research Center, Guangdong Power Grid Corporation, CSG, Guangzhou, 510080, China2.Fogang Xinyuan Hengye Cables Technology Co., Ltd, Qingyuan, 511600, China |
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| Abstract: | Introduction] In order to increase the capacity of a 220 kV transmission line, conventional conductor and various heat-resistant conductors are selected to make comprehensive comparison. Method] This article calculated the maximum operating temperature and power loss, compared effects of mechanical load and wire sag variation on tower foundation, analyzed difficulty of construction and maintenance, and calculated investment and annual cost. Result] The results show that all selected conductors can meet the need of increasing capacity and maximum operating temperature; towers and foundations need rebuilding if using conventional conductor; mechanical load and wire sag of heat-resistant conductors meet the design conditions of original transmission line; conventional conductor and Aluminum Conductor Multi-strand Carbon Fiber Core (ACMCC Conductor) have lower annual costs and more convenience for maintenance. Conclusion] Our work shows that ACMCC Conductor has excellent comprehensive performance and is suitable for enhancing transmission capability of transmission lines in operation without rebuilding, especially in urban or suburban areas where it is difficult to build new towers. |
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