直流特高压架空分裂导线延长杆温度异常原因分析  

Analysis on the Abnormal Temperature of the Extension Poles of DC Extra High Voltage Overhead Split Conductors

作　　者：胡应华 郑凯 李鑫[2] 缪莹 杨森 王凌宇 罗兰元 杜林[2] HU Yinghua;ZHENG Kai;LI Xin;MIAO Ying;YANG Sen;WANG Lingyu;LUO Lanyuan;DU Lin(State Grid Chongqing Electric Power Ultra High Voltage Branch,Chongqing 400039,China;State Key Laboratory of Power Transmission Equipment Technology(Chongqing University),Chongqing 400044,China;State Grid Chongqing Electric Power Company,Chongqing 400013,China)

机构地区：[1]国网重庆电力超高压分公司,重庆400039 [2]输变电装备技术全国重点实验室(重庆大学),重庆400044 [3]国网重庆市电力公司,重庆400013

出　　处：《电工技术》2024年第15期197-201,共5页Electric Engineering

摘　　要：针对实际输电杆塔线路建立基于等电位点及线路参数分析的超高压直流输电线路等效模型,提出影响延长拉杆发热的各类因素。根据工程实际经验,结合理论分析和仿真验证提出线路电阻变化是延长拉杆发热的主要因素,为相关缺陷问题提供了系统性排查思路。This paper establishes an equivalent model of ultra-high voltage direct current transmission lines based on equipotential point and line parameter analysis for actual transmission tower lines,and proposes various factors that affect the heating of extension poles.Based on practical engineering experience and the combination of theoretical analysis and simulation verification,it is proposed that the change in line resistance is the main factor affecting the heating of extension poles,providing a systematic troubleshooting approach for related defect issues.

关 键 词：特高压直流 延长拉杆 发热缺陷 等电位点 系统性排查 

分 类 号：TM63[电气工程—电力系统及自动化] TM755