| XLPE电缆线芯温度计算方法研究 |
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| 引用本文： | 姜小兵.XLPE电缆线芯温度计算方法研究[J].华北电力技术,2014(4):8-11. |
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| 作者姓名： | 姜小兵 |
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| 作者单位： | [1]长沙理工大学电气与信息工程学院,湖南长沙410004 [2]湖南华电长沙发电有限公司,湖南长沙410203 |
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| 基金项目： | 湖南省自然科学基金项目（2011JJ5027） |
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| 摘 要： | 为实时掌握交联聚乙烯(XLPE)配电电缆的运行状态及其载流量,对电缆线芯温度的计算方法进行了研究。针对配电电缆敷设距离较短的特点建立了单芯电缆集中参数稳态等效热路模型,并推导出线芯温度计算公式,通过实验验证了计算方法的有效性,同时对考虑暂态过程的电缆线芯温度计算方法进行了讨论,为电缆运行状态的在线监测提供了参考。
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| 关 键 词： | XLPE电缆 线芯温度 热路模型 暂态线芯温度 |
Method for Calculation of XLPE Cable Conductor Temperature |
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| Jiang Xiao-Bing.Method for Calculation of XLPE Cable Conductor Temperature[J].North China Electric Power,2014(4):8-11. |
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| Authors: | Jiang Xiao-Bing |
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| Affiliation: | Jiang Xiao-Bing ( 1. School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410004, China ; 2. Changsha Power Station Co. Ltd. of Hunan CHD, Changsha 410203, China) |
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| Abstract: | To monitor the operation state and carrying capacity of XLPE cable, the method for calculation of XLPE ca- ble conductor temperature was studied in this paper. The lumped parameter steady-state equivalent thermal circuit model of single core cable was established according to the characteristic of short laying distance of power distribution cable and the formula of conductor temperature was derived, the validity of the method was verified by experiment. In the time,the method for calculation of conductor temperature considering the transient process was discussed,which can provide reference for on-line monitoring of operation status of cables. |
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| Keywords: | XLPE cable cable conductor temperature thermal circuit model transient conductor temperature |
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