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| 基于热电耦合的10kV XLPE地下电缆群温度场数值计算 | |
| 引用本文： | 王巧玲,杨玉平,梁永春.基于热电耦合的10kV XLPE地下电缆群温度场数值计算[J].电工电能新技术,2012,31(2):27-30. |
| 作者姓名： | 王巧玲 杨玉平 梁永春 |
| 作者单位： | 1. 河北科技大学信息科学与工程学院,河北石家庄,050018 2. 河北科技大学理工学院,河北石家庄,050018 3. 河北科技大学电气信息学院,河北石家庄,050018 |
| 基金项目： | 河北省科技支撑计划资助项目(10213557) |
| 摘 要： | 利用有限元计算了地下电缆的焦耳损耗和温度场分布,利用迭代法实现地下电缆温度场和电磁场间的耦合计算,提高了地下电缆温度场计算的精度,利用迭代法确定地下电缆的载流量。本文对地下直埋多芯电缆群的温度场进行了计算,并给出了相应的载流量。耦合计算结果比非耦合计算结果更接近试验结果,完全满足工程实际的需要。 |
| 关 键 词： | 热电耦合 有限单元法 温度场分布 载流量 |
Electro-thermal coupling computation of underground power cables |
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| WANG Qiao-ling , YANG Yu-ping , LIANG Yong-chun.Electro-thermal coupling computation of underground power cables[J].Advanced Technology of Electrical Engineering and Energy,2012,31(2):27-30. | |
| Authors: | WANG Qiao-ling YANG Yu-ping LIANG Yong-chun |
| Affiliation: | 1.Inst.of Information Science & Eng.,Hebei University of Science and Technology, Shijiazhuang 050018,China;2.Polytechnic College,Hebei Univ.of Science and Technology, Shijiazhuang 050018,China;3.Institute of Elec.Eng.& Information Tech., Hebei University of Science and Technology,Shijiazhuang 050018,China) |
| Abstract: | Finite element method(FEM) is used to calculate the Joule losses and temperature of underground cables.Iteration method is used to solve the electro-thermal coupling problem and to improve the accuracy of the calculation.Iteration method is also used to calculate the ampacity of underground cables.The temperature of underground multi-core cables is calculated in this paper and the ampacity is given out.The result of electro-thermal coupling method is more close to experimental result than that of non coupling method.This method is effective for engineering use. |
| Keywords: | electro-thermal coupling finite element method temperature distribution ampacity |
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