±500kV双回路直流耐张塔真型试验分析  

Full-scale Test Analysis for Strain Tower Applied in UHV DC Double-circuit Transmission Line

作　　者：陈廷君[1] 聂卫平[1] 

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广州510663

出　　处：《南方能源建设》2015年第B12期55-59,共5页Southern Energy Construction

摘　　要："溪洛渡右岸电站送电广东±500 k V同塔双回直流输电工程"是我国首个±500 k V双回路直流输电线路工程,本文介绍了铁塔设计要点,选取SJ101双回路耐张塔进行了正常大风、锚线、断线等8个试验工况下的真型试验,将试验结果与理论计算进行了比较,分析了引起试验误差的主要原因,试验结果表明:试验塔的位移和应变值与理论计算值吻合程度较高,铁塔在试验超载120%时发生破坏,铁塔设计符合预期目标,充分说明了铁塔设计的合理性,为其他类似工程设计提供科学依据和参考。Xiluodu right bank-Guangdong ±500 kV double circuit DC transmission project is the first ±500 kV double circuit DC transmission line in China.This paper introduces the key point of the tower designing.The SJ101 was subjected to design and test under cooperation conditions including wind,anchor-wire,broken wire etc.After comparing the test results with the theoretical calculation,the main causes of test error are analyzed.The result show that the actual displacement and stress of the tower SJ101 are in agreement with the theoretical calculation.Finally,the tower collapsed with the test overload 120%.The results are consistent with the design expectations,and show that the tower design is safe and reasonable,and provide the scientific basis and reference for the engineering design.

关 键 词：±500 KV 直流 双回路 耐张塔 真型试验 

分 类 号：TM753[电气工程—电力系统及自动化]