高导电率铝合金节能导线研制及应用探讨  

Development and Application of High Conductivity Aluminum Alloy Energy-saving Conductor

作　　者：单小龙 林继亮 冯祝华 薛春林 陆伟[3] 尤伟任 温作铭 徐一峰 SHAN Xiaolong;LIN Jiliang;FENG Zhuhua;XUE Chunlin;LU Wei;YOU Weiren;WEN Zuoming;XU YIfeng(Shanghai Zhongtian Aluminum Wire Co.,Ltd.,Shanghai 200001,China;East China Electric Power Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Shanghai 200063,China;Jiangsu Zhongtian Technology Co.,Ltd.,Nantong 226400,China;Shanghai High Performance Overhead Conductor Transmission Materials and Application Engineering Technology Research Center,Shanghai 200001,China)

机构地区：[1]上海中天铝线有限公司,上海200001 [2]中国电力工程顾问集团华东电力设计院有限公司,上海200063 [3]江苏中天科技股份有限公司,江苏南通226400 [4]上海高性能架空导线输电材料与应用工程技术研究中心,上海200001

出　　处：《电力勘测设计》2022年第10期64-69,共6页Electric Power Survey & Design

摘　　要：为进一步提高输电导线的导电能力,降低线路损耗,助力绿色电网建设,国内架空导线制造厂家研发了LHA55.25高导电率铝合金材料,制备高导电率铝合金芯铝绞线。从铝合金成分优化、熔体质量把控以及微观强化相调控三个方面,将制备高强度、高导电率铝合金材料的关键工艺进行阐述。同时,以1000 kV交流特高压为例,选取钢芯铝绞线、铝合金芯铝绞线以及LHA55.25高导电率铝合金芯铝绞线三种导线,通过机械性能、电气性能的优化对线路损耗、节能减排效果进行综合比较,并采用最小年费用法进行经济性分析。结果表明:LHA55.25高导电率铝合金芯铝绞线相比常规的铝合金芯铝绞线,电阻更低,节能减排效果更优。随着损耗小时数不断增加,LHA55.25高导电率铝合金芯铝绞线的经济性优势越来越显著。In order to further improve the conductor conductivity,reduce line losses,and help green grid construction,domestic overhead conductor manufacturers have developed LHA55.25 high-conductivity aluminum alloy material and prepared high-conductivity aluminum conductors aluminum-alloy reinforced(ACAR)conductors.The author expounded the key process for preparing high-strength and high-conductivity aluminum alloy materials from the three aspects:aluminum alloy composition optimization,melt quality control and micro-strengthening phase control.At the same time,taking 1000 kV AC UHV as examples respectively,three types of conductors:aluminum conductor steel reinforced(ACSR),ACAR and LHA55.25 high-conductivity ACAR are selected to compare the mechanical properties,line loss,energy conservation and emission reduction effects,and the economic analysis is carried out using the minimum annual cost method.The results show that:LHA55.25 high-conductivity ACAR conductor has lower resistance,better energy saving and emission reduction effects than the conventional ACAR conductor.As the loss hours continue to increase,the economic advantages of LHA55.25 high-conductivity ACAR conductor are becoming more and more obvious.

关 键 词：输电线路 高导电率 铝合金 线路损耗 

分 类 号：TM244.2[一般工业技术—材料科学与工程]