Modeling of Second Generation HTS Cables for Grid Fault Analysis Applied to Power System Simulation

Del-Rosario-Calaf, Gerard; Lloberas-Valls, Joaquim; Sumper, Andreas; Granados, X.; Villafáfila‐Robles, Roberto

doi:10.1109/tasc.2012.2236673

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…The model is applied to the assessment of the temperature profile across the cable in case of normal and off-normal (fault current) operating conditions. A 1D transient model for the temperature in the radial direction for a similar cable is also presented in [46], aiming at evaluating the temperature distributions in the HTS cable layers under normal operating conditions. A 1D steady-state radial conduction model for each layer of the coaxial AC cable in figure 2 is proposed in [47], for the analysis of the operating regime, see equation (7), where the superscript (η) is referred to a generic layer:…”

Section: Simplified 1d or 1d+ Modelsmentioning

confidence: 99%

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

Savoldi¹,

Placido²,

Viarengo³

2022

Supercond. Sci. Technol.

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An overview of the main peculiarities of the models currently available in literature for the thermal-hydraulic analysis of the cooling of the HTS power transmission cables, mainly in nominal operating conditions, is performed. Several models address specific issues such as the temperature distribution along or across the cables, and their pressure drop, typically with a simplified approach. The verification and validation of the models has not been systematically addressed so far. From the analysis of the available literature, the lack of a general model, capable to address thermal-hydraulic transients for the cooling of the different possible cable designs, with capability to catch both the behaviour of the cable solid components and different cryogens, is highlighted. The main ingredients that such general thermal-hydraulic model should not miss are presented, also based on the know-how on, and comparison to, similar tools for LTS cables for nuclear fusion applications.

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Section: Simplified 1d or 1d+ Modelsmentioning

confidence: 99%

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

Savoldi¹,

Placido²,

Viarengo³

2022

Supercond. Sci. Technol.

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“…Temperaturedependent material property values in the range of 73 to 93 K were used. Heat is convected away from the outer surface at a rate of 6000 W/m 2 -K 23 . A geometrically similar computational domain without the thermal window was used to simulate the conventional HTS cable.…”

Section: Thermal Analysismentioning

confidence: 99%

Fast Recovery Studies on Thermal Window based Dielectric for HTS Cable

Hassan¹,

Gour

2022

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High Temperature Superconducting (HTS) cables have remarkable electric power transmission characteristics compared to conventional power cables. Thus, HTS cables are suitable for the sustainable electrical grids of the future. Electric faults of various origins and durations are inevitable in a commercial electric power transmission network. The integration of HTS cables to these networks requires reliable cable operation under fault conditions. However, it was found that HTS cables require a long recovery interval after the fault and subsequent quench. It is primarily attributed to the high thermal resistance of the cable dielectric layer. An innovative dielectric design is proposed in this article to improve the thermal performance of HTS cables and the results are compared with that of a conventional HTS cable. Transient thermal analysis was carried out to determine the recovery interval and the electric insulation characteristics were studied using an electrostatic analysis. Both studies were performed using Finite Element Analysis (FEA). It was found that a reduction in the recovery interval is possible without deterioration in the electric insulation level.

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“…Several attempts have been made in the literature to model superconducting power appliances, particularly about superconducting fault current limiter (SFCL) and superconducting magnetic energy storage system (SMES) [19, 20]. Only a few papers have worked on modelling the superconducting cables, even then they were limited only toward their integration into the power grid applications [21]. Since turbo‐electric aircraft propulsion systems were a microgrid, it must be modelled and optimised very carefully, as the failure of the smallest part can lead to a catastrophic failure of the entire grid.…”

Section: Hts Cable Modelmentioning

confidence: 99%

Investigation of HTS cable impact on turbo‐electric aircraft performance

Venuturumilli

Berg²,

Zhang

et al. 2020

IET Electrical Systems in Transportation

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With significant interest in the use of high-temperature superconducting (HTS) components in electric aircraft, there is a need for novel modelling techniques that allow architecture-level studies of the electrical systems including HTS components. In this study, a simple electric network architecture, as proposed in the literature has been considered, which includes generators, dynamic propulsion load and cables. This electric network has been modelled considering conventional technology and using HTS cables by replacing the conventional copper cables, to evaluate the variations in the network performance. The network performance has been studied for the dynamically varying propulsion load, which is nearly equivalent to the aircraft load over the entire flight duration. Following this, electric faults have been applied at various locations, and the impact of HTS cables on the network fault levels has been evaluated. The fault current levels are compared using both conventional and HTS cables, due to the fault current limiting properties of the HTS cables, they are observed to offer lowered fault current values.

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Modeling of Second Generation HTS Cables for Grid Fault Analysis Applied to Power System Simulation

Cited by 8 publications

References 9 publications

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

Thermal-hydraulic models for the cooling of HTS power-transmission cables: status and needs

Fast Recovery Studies on Thermal Window based Dielectric for HTS Cable

Investigation of HTS cable impact on turbo‐electric aircraft performance

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