中国电机工程学报2013，Vol.33Issue(10)：177-183,前插23,8.
输电线路综合荷载等值覆冰厚度预测与试验研究
Prediction and Experimental Study on Combined Load Equivalent Ice Thickness of Overhead Transmission Line
摘要
Abstract
Accidents such as break line and tower collapse caused by heavy icing bring great threat to safety and stability performance of the power systems. Therefore, online-monitoring on icing for transmission lines can provide valuable reference for engineering applications. In order to monitor equivalent ice thickness, a prediction model of combined load equivalent ice thickness based on torque balance theory was established. This model takes axial tension and angle as parameters and considers unequal loading due to strain insulator string as well as increase of combined load caused by wind force. Manual measurement of icing thickness was carried out in observation station. The field test results show that the prediction obtained by this model is in accord with manual measurement data pretty well. Therefore, the accuracy of this model is verified. Based on field test experience, correct factor of ice shape was presented to provide an accurate and convenient measurement method for field icing measurement.关键词
覆冰/架空输电线路/拉力/倾角/预测模型/冰形校正系数Key words
icing/ overhead transmission line/ axial tension/ angle/ prediction model/ ice shape correct factor分类
信息技术与安全科学引用本文复制引用
蒋兴良,常恒,胡琴,胡建林,张志劲..输电线路综合荷载等值覆冰厚度预测与试验研究[J].中国电机工程学报,2013,33(10):177-183,前插23,8.基金项目
国家重点基础研究发展计划(973计划)(2009CB724501) （973计划）
国家创新研究群体基金(51021005). （51021005）
