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Research Prospect on Improving Economy of XLPE HVDC Submarine Cable
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Hongliang ZHANG1, 2, Jinyu XIAO3, Jinming HOU3, Yao LIU3, Xiaoling ZHAO3, Jiawei WU3, Yi YIN1, 2
Insulating Materials | 2021, 54(3) : 1 - 9
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Insulating Materials | 2021, 54(3): 1-9
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Research Prospect on Improving Economy of XLPE HVDC Submarine Cable
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Hongliang ZHANG1, 2, Jinyu XIAO3, Jinming HOU3, Yao LIU3, Xiaoling ZHAO3, Jiawei WU3, Yi YIN1, 2
Affiliations
  • 1Department of Electrical Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai 200240, China
  • 3Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China
Published: 2021-02-20 doi: 10.16790/j.cnki.1009-9239.im.2021.03.001
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Combining with the relationships among the DC submarine selection, voltage level, and transmission capacity of HVDC submarine cable projects in China, taking the raw material input of DC submarine cable required per unit transmission capacity as a typical economic index, we find that with the increase of voltage level and current capacity of the single loop DC submarine cable, the economy of DC submarine cable increases. By comparing the materials consumable variation of different routes after improving the voltage level and transmission capacity, we find that it is more effective to improve the economy of DC submarine cable by increasing the electrical level of DC submarine cable insulation and the maximum operating temperature of conductor to improve the voltage level and transmission capacity, respectively. In addition, a ±525 kV DC submarine cable with the highest conductor operating temperature of 70℃ was selected as the typical specification, and its insulation field strength distribution variations were analyzed through finite element simulation when the applied voltage and conductor operating temperature increased to 972 kV and 90℃, respectively. The results show that the increase of voltage level and conductor operating temperature will both cause a further increase of field strength close to insulation shield after the insulation field strength reversal, and there is a synergism effect between them. On this basis, a semicircular protuberance with 0.125 mm of depth was set on the interface of insulation shield into insulation, and the finite element simulation results show that the field strength at the protuberance increased by 35.4% compared with the case without protuberance.

XLPE HVDC submarine cable  /  material consumable per unit transmission capacity  /  finite element simulation  /  economy
Hongliang ZHANG, Jinyu XIAO, Jinming HOU, Yao LIU, Xiaoling ZHAO, Jiawei WU, Yi YIN. Research Prospect on Improving Economy of XLPE HVDC Submarine Cable[J]. Insulating Materials, 2021 , 54 (3) : 1 -9 . DOI: 10.16790/j.cnki.1009-9239.im.2021.03.001
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.03.001
  • Receive Date：2020-04-17
  • Online Date：2026-01-26
  • Published：2021-02-20
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History
  • Received：2020-04-17
  • Revised：2020-05-19
Funding
Affiliations
    1Department of Electrical Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai 200240, China
    3Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.03.001
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栓菌属 Trametes 5 2.39
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