Comparative Analysis of XLPE and Thermoplastic Insulation-Based HVDC Power Cables

Jae-In Lee, Woo-Hee Jeong, Minh-Chau Dinh, In-Keun Yu and Minwon Park ()
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Jae-In Lee: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea
Woo-Hee Jeong: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea
Minh-Chau Dinh: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea
In-Keun Yu: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea
Minwon Park: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea

Energies, 2022, vol. 16, issue 1, 1-17

Abstract: The application of cross-linked polyethylene (XLPE) cables to voltage sourced converter (VSC)-based high voltage direct current (HVDC) systems has already been technically verified and has become common, and thermoplastic (TP) is attracting attention as an insulation material for next-generation cables due to the recent development of material-related technologies. However, studies related to TP cables are mainly focused on improving material properties, and studies related to cable systems are insufficient. In this paper, XLPE and TP cables were designed for application to VSC-based HVDC systems, and major characteristics such as electric field distribution and thermal stability were compared and analyzed through overvoltage simulation. The insulation design method of HVDC cable was presented, and the design was performed using XLPE and TP insulation materials. The temperature and electric field profiles of the cables were also analyzed through a finite element method simulation. To analyze the performance of the designed cable, it was simulated with the PSCAD/EMTDC program. Based on the simulation results, the major characteristics of XLPE and TP cables were compared and analyzed. Results showed that in the case of TP cables, insulation properties were excellent, but thermal conductivity was relatively low; therefore, countermeasures are needed.

Keywords: HVDC cable design; HVDC cable electric field distribution; HVDC cable FEM simulation; HVDC cable insulation design; HVDC cable recommended test; overvoltage of HVDC cable (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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