Transient Stability Characteristics of Parallel-Connected YBCO Coated Conductors for Power Transmission Cables

Ishiyama, Atsushi; Iwata, T.; Ueda, Hiroshi; Mukoyama, S.; Shiohara, Yuh

doi:10.1109/tasc.2007.898005

Cited by 14 publications

(12 citation statements)

References 5 publications

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“…We have also performed numerical simulations of these tests by using newly developed computer programs. By comparing the experimental results with the simulation results, the validity of the developed computer programs was confirmed [2,3]. In this study, we perform over-current tests on a 10-m-long YBCO model cable.…”

Section: Introductionmentioning

confidence: 78%

“…The model cable could endure faults without any degradation in the current. On the basis of our previous studies [1][2][3] and the present study, the developed computer program was used for designing the YBCO superconducting cable and determining its electromagnetic and thermal behaviors. In the future, we plan to develop a new model and a new numerical simulator for designing a three-phase YBCO superconducting cable.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, in order to determine the electromagnetic and thermal behavior of the cable in the presence of a fault current, we conducted a series of experiments to measure the over-current in the HTS cable and developed a computer program using the 3D finite element method (FEM) and an equivalent circuit. In previous studies, we carried out experiments on single-YBCO coated conductors and YBCO coated conductors connected in parallel, to investigate their normal-zone initiation and propagation, degradation, and current redistribution characteristics [1,2]. In addition, we conducted over-current tests on a 1-m-long single-layer YBCO model cable in order to investigate the current redistribution and increase in temperature of the Cu former and YBCO coated conductors [3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Over-current characteristics of YBCO superconducting cable

Wang

Ueda

Ishiyama

et al. 2009

Physica C: Superconductivity

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Section: Introductionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Over-current characteristics of YBCO superconducting cable

Wang

Ueda

Ishiyama

et al. 2009

Physica C: Superconductivity

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“…We have developed a numerical simulation program for optimizing the design of the HTS power cable. In previous studies, we carried out over-current experiments on YBCO-coated conductors and YBCO power cables along with the development and verification of the numerical simulation program [7]- [10]. In this study, we carried out over-current experiments on two YBCO model cables and compared the temperature increase in the cable with the simulation results.…”

Section: Introductionmentioning

confidence: 99%

Over-Current Characteristics of 275-kV Class YBCO Power Cable

Ishiyama

Wang

Ueda

et al. 2011

IEEE Trans. Appl. Supercond.

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In Japan, a project for the development of a 275-kV class YBCO power cable started in 2008. High-temperature superconducting (HTS) power cables typically consist of a copper former, an HTS conductor layer, an electrical insulation layer, an HTS shield layer, and a copper shield layer. In practical applications, the 275-kV class transmission line may be subjected to short-circuit fault currents such as 63 kA rms for a duration of 0.6 s. Therefore, in order to ensure the stability and demonstrate the feasibility of the cable, it is important to estimate the current distribution and temperature increase under the fault condition. We designed the copper former, copper shield layer, and copper plating of the YBCO coated conductor carefully so as to fulfill the requirements of practical applications. In this study, we carried out over-current experiments on a 2-m long YBCO model cable and performed numerical simulations by a computer program developed using the finite element method (FEM) and an electric circuit model. We investigated the electromagnetic and thermal behaviors of the cable under fault conditions from the experimental and simulation results.

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“…[6][7][8][9] The cable structures, though, are often very exotic and require complicated manufacturing processes. [10][11][12] Simple and cost effective superconductor cable designs and fabrication processes are required to enable wide implementation. However, not much attention has been paid to processing schemes or possible adaptations to more mature processes that can be readily scalable.…”

mentioning

confidence: 99%