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Analysis on Ampacity and Temperature Distribution of Electric Vehicle Cable with High Thermal Conductivity
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Jin LI1, 2, Yifang WANG1, Xiaoxiao KONG1, Boxue DU1, Jing XU2, Chuanbin WANG2, Chongjun TIAN2
Insulating Materials | 2021, 54(2) : 68 - 74
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Insulating Materials | 2021, 54(2): 68-74
• Special Issue on Thermal Conductive Insulating •
Analysis on Ampacity and Temperature Distribution of Electric Vehicle Cable with High Thermal Conductivity
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Jin LI1, 2, Yifang WANG1, Xiaoxiao KONG1, Boxue DU1, Jing XU2, Chuanbin WANG2, Chongjun TIAN2
Affiliations
  • 1Key Lab of Smart Grid of Ministry of Education, School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
  • 2Yuandong Cable Co., Ltd., Wuxi 214257, China
Published: 2021-02-20 doi: 10.16790/j.cnki.1009-9239.im.2021.02.012
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In order to expand the new energy vehicle market and improve the power transmission efficiency of new energy vehicles, it is necessary to improve the current-carrying capacity of its internal cables. But at the same time, with the increase of load current, the heat dissipation problem of vehicle cable has become prominent. In this study, a finite element simulation model of vehicle cable considering electric field and thermal field was established by COMSOL software, the ampacity was solved by the Nelder-Mead method, and then the effectiveness of Nelder-Mead method was verified by the analytical methods. The improvement effect of the increase of insulation material thermal conductivity on the current-carrying capacity and heat dissipation of the vehicle cable was simulated analyzed. The results show that when a silicone rubber/boron nitride nanosheets (20%) composites with 0.833 W/(m·K) of thermal conductivity was used in vehicle cable, the ampacity of vehicle cable obtained by simulation increases by 5.12%, which can promote heat dissipation more significantly at overload, but it would increase the critical radius of insulation, resulting in a slight increase of conductor temperature when the insulation thickness decreases within the critical radius of insulation.

electrical vehicle cable  /  finite element simulation  /  Nelder-Mead method  /  ampacity  /  temperature distribution
Jin LI, Yifang WANG, Xiaoxiao KONG, Boxue DU, Jing XU, Chuanbin WANG, Chongjun TIAN. Analysis on Ampacity and Temperature Distribution of Electric Vehicle Cable with High Thermal Conductivity[J]. Insulating Materials, 2021 , 54 (2) : 68 -74 . DOI: 10.16790/j.cnki.1009-9239.im.2021.02.012
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.02.012
  • Receive Date：2020-08-21
  • Online Date：2026-01-26
  • Published：2021-02-20
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  • Received：2020-08-21
  • Revised：2020-09-14
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Affiliations
    1Key Lab of Smart Grid of Ministry of Education, School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
    2Yuandong Cable Co., Ltd., Wuxi 214257, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.02.012
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红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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