HTS DC Transmission Line for Megalopolis Grid Development

Kopylov, S. I.; Sytnikov, V.E.; Bemert, S. E.; Ivanov, Yu. V.; Krivetskiy, I. V.; Romashov, M; Shakaryan, Yu. G.; Кейлин, В.Е.; Shikov, A.K.; Patrikeev, V. M.; Лобынцев, В. В.; Shcherbakov, V. K.

doi:10.1088/1742-6596/507/3/032047

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…The considered cable system is made of two monopoles with distinct cryostats for closed-loop circulation of the coolant. In case of cold dielectric layout the integration of the two monopoles in one single cryostat, either with a concentric [4,11,14] or a parallel [7] arrangement, is possible. However, a return path for the coolant must also be integrated into the cryostat.…”

Section: Design Methods Of Dc-hts Cable Systemmentioning

confidence: 99%

“…However, a return path for the coolant must also be integrated into the cryostat. A more complex insulation system is also required in case of concentric arrangement (the main insulation must be designed for twice the versus-ground voltage, and additional insulation must be added for the outermost monopole [4,14]).…”

Section: Design Methods Of Dc-hts Cable Systemmentioning

confidence: 99%

“…Hence, about the same amount of superconductor as that required for the conducting core is required for the shield as well. However, if dc operation is considered, no currents are induced in the cryopipes and the lossless SC shield is no longer required for reducing the heat load [11][12][13][14]16]. Note, however, that a normal conducting shield, which can be accommodated either inside or outside the cryopipe, is still needed [4,14].…”

Section: Cold and Warm Dielectric Hts Cablesmentioning

confidence: 99%

“…where P terminations is the total heat load of the terminations, COP is the coefficient of performance of the cooling system and q friction is the heat load per unit length due to friction which, according to (14), is given by…”

Section: Total Cooling Powermentioning

confidence: 99%

“…Further advantages are the extremely compact size and the possibility to operate at lower voltage. A great research effort has been carried out in recent years for the development of dc HTS cables as they are regarded as key components to strengthen competitiveness and penetration of dc transmission and distribution technology [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

HTS dc transmission and distribution: concepts, applications and benefits

Morandi

2015

Supercond. Sci. Technol.

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The advantages of using HTS cables for dc transmission and distribution are quantitatively investigated. 2G-HTS cables with LN 2 cooling are considered. MgB 2 cables with LH 2 cooling or with two stages LH 2 / LN 2 cooling are considered as well. A design procedure is first set up to arriveat the sizing of the cryopipes in order as to have a realistic estimation of the cooling power required. Losses and right of way of HTS cables are calculated and compared with those of conventional solutions by following a system approach, which takes into account the possible different power architectures of the two cases. Cost comparison is also carried out. Bulk energy transmission by means of HTS HVDC link is dealt with. Feasibility of medium voltage HTS dc connection of a large offshore wind park is assessed. Finally, low voltage HTS dc distribution for data centers, aluminum smelters and ships is investigated.

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Section: Design Methods Of Dc-hts Cable Systemmentioning

confidence: 99%

Section: Design Methods Of Dc-hts Cable Systemmentioning

confidence: 99%

Section: Cold and Warm Dielectric Hts Cablesmentioning

confidence: 99%

Section: Total Cooling Powermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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HTS dc transmission and distribution: concepts, applications and benefits

Morandi

2015

Supercond. Sci. Technol.

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Liquid Nitrogen Cooled Superconducting Power Cable with No Solid Insulation

Al-Taie

Telikapalli

Cheetham

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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In an attempt to eliminate solid insulation challenges in cryogenic superconducting power cables, a new design concept for liquid cryogen cooled superconducting power cable was investigated. The design is based on superconducting gas insulated line (S-GIL). The design used liquid cryogen as the sole insulation medium. The suitability of the design for medium voltage power cables is discussed and the benefits of eliminating a solid insulation were identified. Experiments on 1-m long model cables with insulator tubes as spacers showed that the design is suitable for cables at 50 kV or higher. The actual limits could not be identified because of the experimental limitations originated from limited standoff distances in the measurement setup used. On a fundamental level, the investigations presented in the study showed a direct correlation between the intrinsic dielectric strength of the cryogen used and the maximum tolerated voltage for a given diameter of the cable system. The results show the promise for liquid nitrogen (LN2) and liquid hydrogen (LH2) cooled cables for various medium voltage applications, including electric aviation and electric ships.

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