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电网技术  2010 

低温雨雪冰冻灾害对我国电网损毁性影响概述

, PP. 135-139

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Abstract:

为提高电网抵御低温雨雪冰冻灾害的能力,回顾我国发生低温雨雪冰冻灾害的主要历史事件,总结了该型灾害的时空分布特点及对我国电网损毁的特点。对比分析冰灾和拉尼娜事件的时间对应关系,认为拉尼娜事件可作为预测冰雪灾害的一个重要因素。结合2008年初冰灾对电网损毁影响的统计结果,分析了电网受损的原因和电网防冰灾设计标准,探讨了我国电网防冰灾策略和技术措施,建议从多方面采取措施以提高我国电网抗冰灾能力,如骨干网架差异化设计、电网防冰灾设计标准优化调整、覆冰调查及冰区图修订完善、线路走廊规划及现场勘测、严重覆冰地段的线路改造等。

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