Development of a High-Temperature Superconducting Gas-Insulated Power Cable

Cheetham, Peter; Al-Taie, Aws; Telikapalli, Srikar; Stamm, T.; Kim, Chul Han; Graber, Lukas; Pamidi, Sastry

doi:10.1109/tasc.2020.2976606

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…The field enhancement at the triple point could explain the reason why PDIV started around 12 kV and the cable eventually breaks down at 18 kV. Similar measurements have been performed in the past by our team and for the geometry utilized for this experiment, a withstand voltage between 20-30 kV was expected [19]. When the bushing is held concentric in Fig 6(b), breakdown occurs through the helium.…”

Section: Discussionsupporting

confidence: 75%

Design of warm dielectric terminations and electrical breaks for high-temperature superconducting power cables

Mensah

Lopez

Cheetham

et al. 2022

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

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Large electric transportation systems such as electric aircraft and electric ships have been designed with multiple high temperature superconducting (HTS) power cables as part of superconducting power distribution network, and a good electric insulation for the power cables is a critical design requirement needed to be considered. This is because terminations in HTS cable represent a location of significant electrical and thermal stresses and needs to be addressed to reduce the substantial heat load that might be introduced into the cryogenic system. The use of a warm dielectric termination is seen as a potential solution to reduce the electrical standoffs required as part of the design and allow for a high-power dense termination design. A warm dielectric termination design using commercially off-the-shelf ceramic breaks as electrical breaks is explored and withstand and partial discharge measurements are performed to determine the viability of the design concept.

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Section: Discussionsupporting

confidence: 75%

Design of warm dielectric terminations and electrical breaks for high-temperature superconducting power cables

Mensah

Lopez

Cheetham

et al. 2022

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

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“…There are many traditional insulation test methods, including insulation resistance test, voltage withstand test, material chemical test, dielectric loss test, partial discharge test, etc. Among them, the insulation resistance test [7] and the voltage withstand test [8] are both offline tests, and the basic principles are relatively simple. Both test the insulation performance by applying voltage between the core and the ground.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on Online Diagnosis of Aging and Deterioration of Medium Voltage (MV) Three-Core Cable Based on Impedance Spectroscopy

Yuan

Chen

et al. 2023

IEEE Access

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In order to explore the feasibility of impedance spectroscopy in the application of online diagnosis of aging and deterioration of medium voltage (MV) three-core cables, based on the theory of transmission line equation, an aging and deterioration model of the MV three-core cable has been established. The impedance spectroscopy of the cable head-end under healthy and different aging and degradation states has been simulated and analyzed. Further, the effects the extent of aging, local deterioration size and position, line length, load rate and other factors on the impedance spectroscopy have been studied. Based on the influence of the various factors on the impedance spectroscopy, a set of aging and deterioration diagnosis procedures and methods are proposed. The simulation results indicate that the impedance spectroscopies of healthy state and different aging and/or deterioration states have certain characteristics. These characteristics can be determined by specific criterion indicators such as the monotonous decrease of the value of the resonance peaks and the phase amplitudes, the value of the resonance peaks, and the eigen propagation frequency, etc. Therefore, impedance spectroscopy has broad application prospects for online diagnosis of aging and deterioration of MV three-core cable.INDEX TERMS Power cable, aging and deterioration, online diagnosis, impedance spectroscopy.

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Section: Introductionmentioning

confidence: 99%

“…Due to the zero electrical resistance and Meissner state of superconductors (SCs), applied superconducting technologies are viable to improve the reliability and efficiency of CLPs. In the recent decades, SCs have been utilised in many industrial applications, such as superconducting power cables [5], superconducting machinery [6], and superconducting magnetic bearings (SMBs) [7, 8]. However, further extension of superconducting technologies is hindered by the complicity and cost of the refrigeration unit used for cooling the SCs.…”

Section: Introductionmentioning

confidence: 99%

Analysis and testing of a superconducting maglev submersible cryogenic liquid pump

Zhang

et al. 2022

IET Electric Power Appl

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This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using superconducting magnetic bearing (SMB). A new structure is proposed for the self‐stability of high‐temperature superconducting magnetic levitation, and the compact structure of disk motor‐pump. The rotor of the axial‐flux disk motor is connected with a centrifugal impeller to form an impeller‐rotor of the proposed superconducting CLP. Supported by a SMB system, the impeller‐rotor rotates frictionlessly with self‐stabilisation as a suspension rotor. The SMB system includes a radial‐type SMB, an auxiliary permanent magnet bearing, and an electromagnetic bearing composed of the stator and the rotor of disk motor. Theoretical calculations and experimental measurements are performed to examine the axial and radial levitation force behaviours of the SMB system. Then, a kinetic model of the suspension rotor is established and analysed to assure force balance and stable levitation. Finally, a prototype pump is fabricated and an experimental setup for liquid nitrogen transmission is constructed for validation purposes. The experimental tests on the pump head and the flow rate are carried out, which demonstrate the effectiveness of the proposed superconducting maglev submersible CLP.

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Development of a High-Temperature Superconducting Gas-Insulated Power Cable

Cited by 9 publications

References 10 publications

Design of warm dielectric terminations and electrical breaks for high-temperature superconducting power cables

Design of warm dielectric terminations and electrical breaks for high-temperature superconducting power cables

Feasibility Study on Online Diagnosis of Aging and Deterioration of Medium Voltage (MV) Three-Core Cable Based on Impedance Spectroscopy

Analysis and testing of a superconducting maglev submersible cryogenic liquid pump

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