Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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多回路高壓電纜群穩(wěn)態(tài)溫度場建模與分析

來源:電工電氣發(fā)布時間:2020-06-18 14:18 瀏覽次數(shù):1049
多回路高壓電纜群穩(wěn)態(tài)溫度場建模與分析
 
付明星,王善紅,王雁冰,潘恒
(國網(wǎng)江蘇省電力有限公司鹽城供電分公司,江蘇 鹽城 224002)
 
摘 要:為解決多回路電纜群溫度場計(jì)算問題,以220 kV高壓電纜為研究對象,采用有限元法建立多回路電纜群穩(wěn)態(tài)溫度場的磁熱耦合計(jì)算模型,計(jì)算得到多回路電纜群的電磁損耗和溫度場分布結(jié)果,經(jīng)與IEC 60287標(biāo)準(zhǔn)計(jì)算結(jié)果對比,驗(yàn)證了模型有效性,并結(jié)合仿真模型,探討了空氣溫度、土壤熱阻系數(shù)等各種因素對多回路電纜群溫度場分布的影響,為電纜群運(yùn)行維護(hù)提供了參考。
關(guān)鍵詞:高壓電纜;多回路;有限元法;穩(wěn)態(tài)溫度場;磁熱耦合
中圖分類號:TM726.4     文獻(xiàn)標(biāo)識碼:A      文章編號:1007-3175(2020)06-0019-05
 
Modeling and Analysis of Steady Temperature Field of Multi-Circuit High-Voltage Cables in Group
 
FU Ming-xing, WANG Shan-hong, WANG Yan-bing, PAN Heng
(Yancheng Power Supply Company of State Grid Jiangsu Electric Power Company, Yancheng 224002, China)
 
    Abstract: In order to solve the calculation of the temperature field of the multi-loop cable group, 220 kV high-voltage cable is taken as the research object, and a finite element method is used to establish a magnetic-thermal coupling calculation model of the multi-loop cable group. The electromagnetic loss and temperature distribution of the multi-loop cable group are calculated. Compared with the calculation results of the IEC 60287 standard, the validity of the model is verified. Combined with the simulation model, the effects of various factors such as air temperature and soil thermal resistance coefficient on the temperature field distribution of the multi-loop cable group are discussed, which provides a reference for the operation and maintenance of the cable group.
    Key words: high-voltage cables; multi-circuit; finite element method; steady temperature field; magnetic-thermal coupling
 
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