An investigation of the current distribution in the triaxial cable and its operational impacts on a power system

M. A. Young; M. J. Gouge; M. O. Pace; J. A. Demko; R. C. Duckworth; J. W. Lue; Aly Fathy

doi:10.1109/TASC.2005.849273

An investigation of the current distribution in the triaxial cable and its operational impacts on a power system

M. A. Young, M. J. Gouge, M. O. Pace, J. A. Demko, R. C. Duckworth, J. W. Lue, Aly Fathy

Fusion Technology

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21 Scopus citations

Abstract

An investigation of the current distribution in a three-phase triaxial superconducting cable is underway to study phase imbalances under steady-state operation and to assist in the construction of a transient model to study operational impacts of the cable in a power grid. The triaxial cable consists of three superconducting concentric phases inside a copper shield, with each phase composed of multiple layers of BSCCO tape wound helically in opposite directions. Current distribution among the phases of the cable is determined by using an electric circuit (EC) model containing the self and mutual inductances resulting from both axial and tangential fields. An ac loss term is also included in the model. Building on the EC model, a lumped cable model is used to investigate the effects of the triaxial cable on a power grid when faults are applied to the system. Cable lengths practical for future applications (∼10 km) are considered.

Original language	English
Pages (from-to)	1751-1754
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	15
Issue number	2 PART II
DOIs	https://doi.org/10.1109/TASC.2005.849273
State	Published - Jun 2005

Funding

Manuscript received October 4, 2004. This work was supported by the U.S. Department of Energy, Office of Electric Transmission and Distribution, Superconductivity Program for Electric Power Systems, under Contract DE-AC05-00OR22725 with UT-Battelle, LLC. M. A. Young is with the University of Tennessee, Knoxville, TN 37996 USA (e-mail: [email protected]). M. J. Gouge, J. A. Demko, R. C. Duckworth, and J. W. Lue are with the Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA (e-mail: [email protected]). M. O. Pace and A. Fathy are with the Electrical Engineering Department, University of Tennessee, Knoxville, TN 37996 USA (e-mail: [email protected]). Digital Object Identifier 10.1109/TASC.2005.849273 Fig. 1. Cross-section of HTS triaxial cable showing the three superconducting phases and the copper shield (not to scale). Average radii are included.

Funders	Funder number
Office of Electric Transmission and Distribution, Superconductivity Program for Electric Power Systems	DE-AC05-00OR22725
U.S. Department of Energy

Keywords

Ac loss
Alternative transients program
HTS cable
Power transmission
Triaxial

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10.1109/TASC.2005.849273

Cite this

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abstract = "An investigation of the current distribution in a three-phase triaxial superconducting cable is underway to study phase imbalances under steady-state operation and to assist in the construction of a transient model to study operational impacts of the cable in a power grid. The triaxial cable consists of three superconducting concentric phases inside a copper shield, with each phase composed of multiple layers of BSCCO tape wound helically in opposite directions. Current distribution among the phases of the cable is determined by using an electric circuit (EC) model containing the self and mutual inductances resulting from both axial and tangential fields. An ac loss term is also included in the model. Building on the EC model, a lumped cable model is used to investigate the effects of the triaxial cable on a power grid when faults are applied to the system. Cable lengths practical for future applications (∼10 km) are considered.",

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AU - Duckworth, R. C.

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An investigation of the current distribution in the triaxial cable and its operational impacts on a power system

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Keywords

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