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电网技术  2015 

20mm重冰区500kV同塔双回输电线路设计

DOI: 10.13335/j.1000-3673.pst.2015.01.019, PP. 123-129

Keywords: 重冰区,同塔双回线路设计,数值模拟,脱冰动力响应

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Abstract:

以国内首条20mm重冰区500kV同塔双回线路—;—;茂茂线为依托,利用数值模拟方法对各种脱冰工况下导线脱冰动力响应进行研究,得出了导线脱冰跳跃高度和横摆距离工程实用化公式,并总结出脱冰过程中杆塔动力荷载变化规律。在此基础上对20mm重冰区500kV同塔双回线路路径选择、绝缘配置、塔头尺寸控制条件、铁塔荷载和铁塔型式等方面进行研究,基本理清了重冰区同塔双回线路的设计方法和思路,可为后续重冰同塔双回线路设计提供重要参考。

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