Thermomechanical Characteristics of 500-m HTS Power Cable

Ichikawa, Masatoshi; Kanegami, M.; Okamoto, Tatsuki; Akita, S.; Yagi, Masayuki; Kimura, Akio

doi:10.1109/tasc.2005.849284

Cited by 14 publications

(5 citation statements)

References 4 publications

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“…Moreover, the length of the off set section is shortened for 690 mm, which is corresponding to a thermal contraction of 94% for the straight sections on the offset section side with length of 245 m. The absorption of the mechanical stress works well, and details of the observed and analyzed results are shown in the other paper [8].…”

Section: A Mechanical Behaviors Of Hts Cablementioning

confidence: 93%

Demonstration and Verification Tests of 500 m Long HTS Power Cable

Takahashi

Suzuki

Ichikawa

et al. 2005

IEEE Trans. Appl. Supercond.

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A high-temperature superconducting (HTS) power transmission cable is considered as one of the next-generation power transmission technologies. The introduction of HTS cables into the actual power grid requires a long-distance cooling tube, due to the location of the cooling stations at intervals of several kilometers along the cable length. Therefore, it is essential to understand the flow property of the liquid nitrogen as a coolant for the HTS cable, the current flow properties, electrical insulation characteristics, thermal insulation properties and mechanical behavior for the HTS cable taking into account its long length. This paper provides a brief summary of the HTS cable test system with a length of 500 m constructed in the Yokosuka area of CRIEPI.

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Section: A Mechanical Behaviors Of Hts Cablementioning

confidence: 93%

Demonstration and Verification Tests of 500 m Long HTS Power Cable

Takahashi

Suzuki

Ichikawa

et al. 2005

IEEE Trans. Appl. Supercond.

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“…The advantage of helium is that it can be maintained as a gas at the cable operating temperature and pressure. However, there is recent evidence that shows this pressurizing arrangement runs the risk of forming a helium bubble downstream in the HTS cable cryostat through a combination of absorption and desorption driven by small temperature and pressure differences over an extended period of time [10].…”

Section: /9mentioning

confidence: 99%

Performance Testing of a Cryogenic Refrigeration System for HTS Cables

Lee¹,

Dada²,

Garcia³

et al. 2006

AIP Conference Proceedings

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A novel Cryogenic Refrigeration System (CRS) has been developed to provide the refrigeration for an in-grid 350 m HTS cable demonstration in Albany NY. Refrigeration is provided by a closed cycle refrigerator (cryocooler) with a nominal cooling capacity of 6 kW at 70 K. The CRS is designed to meet both the stringent operating and reliability criteria necessary for the utility industry, while demonstrating the commercial requirements of a cost effective and compact design. Integral to the operation of the CRS is the continuous monitoring and control provided by BOC's remote operations infrastructure. The skid mounted CRS has been installed at host utility Niagara Mohawk's site in Albany. Field trials of the CRS and its remote operation were conducted prior to the HTS cable installation using a simulated heat load. A wide variety of operating conditions and modes of operation were tested, including back up and accelerated recovery from fault current conditions. This paper describes the integrated system design and field testing results.

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“…In the field of HTS power stability, a 500-m single-core HTS cable constructed offset section for absorbing the thermal contraction [9], [10]. Electromechanical and thermal limitations of over-current pulses were measured on HTS tapes are research [11].…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of the Cable Core of a 10 kA HTS DC Power Cable Used in the Electrolytic Aluminum Industry

Zhang

Dai

Zhang

et al. 2015

IEEE Trans. Appl. Supercond.

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High temperature superconducting (HTS) dc power cable shows a wide application prospect in the field of power transmission for its nearly lossless and rather high capacity. IEE has installed a 360-meter long high temperature superconducting (HTS) dc power cable at the self-supply power plant of Zhongfu Industrial Company Ltd. in Gongyi, Henan and the system has operated for two years. The cable connects a 19.5 MVA/1.5 kA silicon-controlled rectifier, which connects with a 110 kV/1 kV transformer, to the bus bar of an electrolytic aluminum cell. It is designed to carry 10-kA current and the voltage is 1300 V. The HTS dc power cable core consists of five conductor layers wound with the spliced Bi-2223 wires with the length of 40 km. The cable core has five layers and 23 HTS wires in each layer with the outer diameter of 45 mm. The HTS dc power cable is fabricated with the spliced superconducting wires which will have effect on the overall superconductivity. Also, since dc output of the rectifier contains a proportion of the ac harmonic ripple, the large dc and small ac will generate the loss in the cable core. In the operation of the 10 kA HTS dc power cable, anode effect will occur in electrolytic aluminum tank, which will lead to a large fault current in the cable and even lead to the power off protection. In this paper, stability of the spliced Bi-2223 wire, stability of the cable core under the cold shrinkage force, loss under the large dc and small ac ripple are analyzed by the theoretical and experimental methods. The test results of ac ripple loss, anode effect, and stable operation are also presented.Index Terms-DC, high temperature superconducting (HTS), power cable, stability, 10 kA.

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Thermomechanical Characteristics of 500-m HTS Power Cable

Cited by 14 publications

References 4 publications

Demonstration and Verification Tests of 500 m Long HTS Power Cable

Demonstration and Verification Tests of 500 m Long HTS Power Cable

Performance Testing of a Cryogenic Refrigeration System for HTS Cables

Stability Analysis of the Cable Core of a 10 kA HTS DC Power Cable Used in the Electrolytic Aluminum Industry

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