Second Cooling Test of 1000-m Superconducting DC Cable System in Ishikari

Chikumoto, N.; Watanabe, Hirofumi; Ivanov, Yury; Takano, Hirohisa; Yamaguchi, S.; Ishiyama, Kotaro; Oishi, Zenji; Watanabe, M.; Masuda, Takato

doi:10.1109/tasc.2018.2815715

Cited by 13 publications

(3 citation statements)

References 8 publications

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“…The Ishikari SCDC demonstration test facility was constructed in 2013 in Ishikari, Hokkaido. It comprises the world's longest class of 500 m (Line 1) and 1000 m (Line 2) cable systems [4][5][6]. Table 1 lists the main specifications of Ishikari SCDC Lines 1 and 2.…”

Section: Results Of the Ishikari Project And Restart Operation 21 Ach...mentioning

confidence: 99%

Test operation of 500 m /100 MW Ishikari high-temperature superconducting DC transmission line to demonstrate the required cost reduction and robustness

Inoue

Chikumoto

Watanabe

et al. 2023

J. Phys.: Conf. Ser.

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This paper presents the results of the Ishikari Line 1 restart test conducted in 2021 to collect basic data for cost reduction, improved efficiency, and confirm the integrity of the equipment. The Ishikari Superconducting DC transmission (SCDC) demonstration test facility was constructed in 2013 in Ishikari, Hokkaido. It comprises the world’s longest class of 500 m (Line 1) and 1000 m (Line 2) SCDC systems. In 2015, Line 1 successfully demonstrated the world’s first power transmission from a solar power plant to an Internet data center. The restart test was conducted approximately six years after shutdown, and a strong earthquake occurred during the shutdown period. The restart test operation confirmed the integrity and robustness of the facility, which had experienced a major earthquake. Cooling tests and electrical tests were conducted, and useful data were obtained, including efficient cooling operation and the integrity and shunt current of the superconducting cables. Based on these results, we aim to promote the social implementation of SCDC by compiling a database for the quantitative evaluation of reliability, safety, and cost.

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Section: Results Of the Ishikari Project And Restart Operation 21 Ach...mentioning

confidence: 99%

Test operation of 500 m /100 MW Ishikari high-temperature superconducting DC transmission line to demonstrate the required cost reduction and robustness

Inoue

Chikumoto

Watanabe

et al. 2023

J. Phys.: Conf. Ser.

Self Cite

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“…On 28 May 2001, a 30 kV/2 kA 30 m long HTS cable developed by NKT and its partners was put into operation in Denmark for the first time (Ostergaard and Tonnesen, 2002). From then on, several demonstration projects with various featured parameters have been carried out in United States, China, Japan, Korea, Russia and EU (Ueda et al, 2003;Honjo et al, 2011;Thomas et al, 2016;Chikumoto et al, 2018;Lee et al, 2018;Hajiri et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Development and demonstration of concentric-type HTS power cable for distribution grid in Shenzhen urban

Tang

Li²,

Xie³

et al. 2023

Front. Energy Effic.

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High-temperature superconducting (HTS) cable can transmit massive power with little dissipation in a limited corridor, which is an attractive solution for future power transmission. Shenzhen Power Supply energized a 400 m/10 kV/2.5 kA concentric HTS cable system on 28 September 2021 to power Ping’an Financial Centre, a Shenzhen’s landmark building, which was the debut of concentric HTS cable made of YBCO in the urban area of a megacity. For more than 1 year, the HTS cable system has been operating well and will continue to operate for a long time. This paper systematically reviews the system specification, cable and its accessories design, cryogenic cooling system design, type and exploratory test, project construction, pre-commissioning test, and operation of the demonstration cable system. Based on our R&D practice, we identify that cost, long-term reliability, and operational simplicity are the main hinders factors that need to be addressed to advance the large-scale application and we propose a set of solution ideas meanwhile.

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“…This followed the successful demonstration of the stability and operation conditions of the two AC and DC cables in the real power grid on Jeju Island [7]. In the city of Ishikari on Hokkaido Island, Japan, two SC DC power transmission lines (one 500 m long and the second 1 km long, respectively) were successfully tested in 2015 and 2016 [8,9]. In St. Petersburg, Russia, a 2.5 km high-voltage DC SCTL is planned to enter operation into the city electric power system [2,10,11], and a full-scale transmission line has been recently tested, to confirm the design performance [12].…”

Section: Introductionmentioning

confidence: 99%

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

Savoldi¹,

Placido²,

Viarengo³

2022

Supercond. Sci. Technol.

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An overview of the main peculiarities of the models currently available in literature for the thermal-hydraulic analysis of the cooling of the HTS power transmission cables, mainly in nominal operating conditions, is performed. Several models address specific issues such as the temperature distribution along or across the cables, and their pressure drop, typically with a simplified approach. The verification and validation of the models has not been systematically addressed so far. From the analysis of the available literature, the lack of a general model, capable to address thermal-hydraulic transients for the cooling of the different possible cable designs, with capability to catch both the behaviour of the cable solid components and different cryogens, is highlighted. The main ingredients that such general thermal-hydraulic model should not miss are presented, also based on the know-how on, and comparison to, similar tools for LTS cables for nuclear fusion applications.

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Second Cooling Test of 1000-m Superconducting DC Cable System in Ishikari

Cited by 13 publications

References 8 publications

Test operation of 500 m /100 MW Ishikari high-temperature superconducting DC transmission line to demonstrate the required cost reduction and robustness

Test operation of 500 m /100 MW Ishikari high-temperature superconducting DC transmission line to demonstrate the required cost reduction and robustness

Development and demonstration of concentric-type HTS power cable for distribution grid in Shenzhen urban

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

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