Simulation for the Fault Current Limiting Operation of REBCO CORC Superconducting Cables With Different Core Materials

Nguyen, Linh N.; Naud, Martin; Weiss, Jeremy; Pamidi, Sastry; Donges, Sven A.; Laan, D C van der; Nguyen, Doan N.

doi:10.1109/tasc.2022.3229656

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…Although the experimental methods are reliable, they can be highly expensive and sometimes destructive in the case of repetition of fault tests. (ii) The second group of methods uses numerical formulations that are solved by finite element methods (FEMs) [10][11][12][13][14]. Accurate FEMs are usually very slow and require significant computational resources.…”

Section: Introductionmentioning

confidence: 99%

Intelligent surrogate model of a high-temperature superconducting cable for reliable energy delivery: short-circuit fault performance

Sadeghi,

Song,

Yazdani-Asrami

2024

Supercond. Sci. Technol.

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High Temperature Superconducting (HTS) cables are promising devices for electrical power transmission of renewable energy resources, where their fault performance study is vital to avoid interruptions in electric system. In this study, fast intelligent surrogate models were presented to estimate the fault performance of a 22.9 kV/50 MW HTS cable to make the fast fault performance analysis of the HTS cables possible, during the design stages. Different fault scenarios were considered under different fault durations, fault resistances, and types of faults. Then, fault energy, fault current, fault type, fault duration, and fault resistances were fed into surrogate model, as inputs. On the other hand, the outputs were temperature of ReBCO tapes, former temperature, ReBCO layer current, and total resistance of each phase. For surrogate modelling, Cascade Forward Neural Networks (CFNN) was used. Results show that the accuracy of CFNN-based model to estimate fault performance of the cable with an average accuracy of 99.1%. Finally, the impact of considering fault energy, fault current, and both, as the inputs of the models, on the final accuracy was explored. Results showed that fault energy consideration could increase the accuracy of surrogate model.

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Section: Introductionmentioning

confidence: 99%

Intelligent surrogate model of a high-temperature superconducting cable for reliable energy delivery: short-circuit fault performance

Sadeghi,

Song,

Yazdani-Asrami

2024

Supercond. Sci. Technol.

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Understanding ac losses in CORC cables of YBCO superconducting tapes by numerical simulations

Nguyen,

Shields,

Ashworth

et al. 2023

Journal of Applied Physics

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Alternating current (ac) losses in conductor-on-rounded-core (CORC) cables of YBCO high-temperature superconducting (HTS) tapes are a significant challenge in HTS power applications. This study employs two finite element analysis (FEA) models to investigate the contributions from different ac loss components and provide approaches for reducing ac losses in cables. An FEA model based on the T-A formulation treats the cross section of thin superconducting layers as 1D lines and, therefore, only can predict the ac loss generated by the perpendicular magnetic field. In contrast, the model based on H-formulation can be performed on the actual 2D rectangular cross section HTS tapes to provide the total ac losses generated by magnetic fluxes penetrating from both the edges and surfaces of HTS tapes, although this model requires more computing time and memory. The 1D and 2D simulation models were validated by cross comparing the results from both models and by comparing sub-section and full cross section models. Subsequently, two models relate cable design and operational parameters to the surface and edge losses of a two-layer CORC cable by considering the (1) relative contributions of edge and surface losses to the overall ac losses; (2) effect of the current distribution between inner and outer HTS layers on ac losses; (3) impact of the tape alignment on ac losses in each HTS layer; (4) influence of the thickness of HTS layers on ac losses; (5) effect of size and number of inter-tape gaps on ac losses; and (6) contribution frequency on the ac losses. The research results given in this paper are therefore not only valuable to suggest strategies for reducing ac loss in multi-layer cables but also for developing more accurate and effective methods to calculate ac loss in CORC HTS cables.

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An Electromagnetic-Thermal Modeling Method for the Joint Resistance of the CORC Cable

Li,

Yang,

Cai

et al. 2024

IEEE Trans. Appl. Supercond.

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Simulation for the Fault Current Limiting Operation of REBCO CORC Superconducting Cables With Different Core Materials

Cited by 4 publications

References 19 publications

Intelligent surrogate model of a high-temperature superconducting cable for reliable energy delivery: short-circuit fault performance

Intelligent surrogate model of a high-temperature superconducting cable for reliable energy delivery: short-circuit fault performance

Understanding ac losses in CORC cables of YBCO superconducting tapes by numerical simulations

An Electromagnetic-Thermal Modeling Method for the Joint Resistance of the CORC Cable

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