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Assessment of Thermal and Electric Field Characteristics of HVDC Cable According to the Inner Filler Size of XLPE

  • Ho-young Lee
  • Ik-Soo Kwon
  • Mansoor Asif
  • Chae-Kyun Jung
  • Jae-Sang Hwang
  • Min-Ju Kim
  • Bang-Wook LeeEmail author
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 598)

Abstract

Increasing the rating of the HVDC cable causes an inevitable increase in the heat generated inside cable. Thus, it is necessary to improve the thermal conductivity of the Cross-linked polyethylene (XLPE) insulation material used in the extruded cable for effective thermal management. Also, several methods have been pro-posed so far to increase the thermal conductivity of XLPE. However, the influence of the filler addition on the thermal conductivity has been mainly studied experimentally so far. Therefore, numerical analysis was performed to investigate the effect of filler size and its content on thermal conductivity of XLPE. In the modelling of XLPE composite for numerical analysis spherical Al2O3 particles with a radius of 25, 50, 100 and 200 nm were considered. Additionally, filler contents were considered with up to 20 wt%. Numerical analysis of XLPE composite model showed that the effective thermal conductivity increased with the smaller filler size. Also, as the content of filler increased, the effective thermal conductivity increased. A coupled electro-thermal model considering the previously derived thermal conductivities was used to investigate the influence of the thermal conductivity of XLPE on temperature and electric field distribution. From the simulation results it can be concluded that, higher thermal conductivity of XLPE can reduce the thermal and electrical stress of the cable. Therefore, it is considered that the smaller the size of the filler added to the insulation or the larger the content of the filler, the thermal and electrical stress in the cable can be reduced.

Keywords

XLPE HVDC cable Filler Thermal conductivity Numerical analysis 

References

  1. 1.
    Feng, X., Misra, S., Xue, G., Yang, D.: Smart grid—the new and improved power grid: a survey. IEEE Commun. Surv. Tutor. 14, 944–980 (2011)CrossRefGoogle Scholar
  2. 2.
    Chen, G., Hao, M., Xu, Z., Vaughan, A., Cao, J., Wang, H.: Review of high voltage direct current cables. CSEE J. Power Energy Syst. 1, 9–21 (2015)CrossRefGoogle Scholar
  3. 3.
    Mecheri, Y., Bouazabia, S., Boubakeur, A., Lallouani, M.: Effect of thermal ageing on the properties of XLPE as an insulating material for HV cables. In: International Electrical Insulation Conference, Birmungham (2013)Google Scholar
  4. 4.
    Huang, Z.Y., Pilgrim, J.A., Lewin, P.L., Swingler, S.G.: Real-time electric field estimation for HVDC cable dielectrics. In: 2015 IEEE Electrical Insulation Conference, Seattle (2015)Google Scholar
  5. 5.
    Li, Z., Du, B.: Polymeric insulation for high-voltage DC extruded cables: challenges and development directions. IEEE Electr. Insul. Mag. 34, 30–43 (2018)CrossRefGoogle Scholar
  6. 6.
    Lee, G.W., Park, M., Kim, J.K., Lee, J.I., Yoon, H.G.: Enhanced thermal conductivity of polymer composites filled with hybrid filler. Compos. A Appl. Sci. Manuf. 37(5), 727–734 (2006)CrossRefGoogle Scholar
  7. 7.
    Kiran, R.: Thermal conductivity of polymer composites filled with nanofillers (2016).  https://doi.org/10.20944/preprints201608.0216.v1
  8. 8.
    Maxwell, J.C.: A Treatise on Electricity and Magnetism. Oxford Classic Texts in the Physical Sciences, vol. 1. Clarendon Press, Oxford (1873)Google Scholar
  9. 9.
    Yonemoto, N., Muneta, Y., Yamanouchi, H, Seo, S., Kumada, Y., Itoh, M., Kunimura, S., Nakamura, S., Fujii, Y., Ishii, T.: Construction of the world’s first long-distance 500 kV XLPE cable line. Fujikura Technical Review (2003)Google Scholar
  10. 10.
    Zhan, Y., Chen, G., Hao, M.: Space charge modelling in HVDC extruded cable insulation. IEEE Trans. Dielectr. Electr. Insul. 26, 43–50 (2019)CrossRefGoogle Scholar
  11. 11.
    Mardiana, R.: Parameters affecting the ampacity of HVDC submarine power cables. In: 2011 2nd International Conference on Electric Power and Energy Conversion Systems (EPECS), Sharjah (2011)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Hanyang UniversityAnsanRepublic of Korea
  2. 2.KEPCO Research InstituteDaejeonRepublic of Korea

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