Development of high-temperature superconductor cables for high direct current applications

Development of high-temperature superconductor cables for high direct current applications
Author: Preuß, Alan
Publisher: KIT Scientific Publishing
Total Pages: 194
Release: 2021-01-14
Genre: Technology & Engineering
ISBN: 3731510413
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A design process for HTS DC cables was developed for high current applications. Based on the design process, a 35 kA HTS DC cable demonstrator was developed. The superconducting elements of the demonstrator were manufactured and tested individually at 77 K. Afterwards, the demonstrator cable was assembled and tested at 77 K. The assembled demonstrator successfully reached 35 kA at 77 K and self field conditions.

Technology and readout for scaling up superconducting nanowire single-photon detectors

Technology and readout for scaling up superconducting nanowire single-photon detectors
Author: Knehr, Emanuel Marius
Publisher: KIT Scientific Publishing
Total Pages: 200
Release: 2023-03-02
Genre: Technology & Engineering
ISBN: 3731512564
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This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced number of lines, and the integration of SNSPDs with free-form polymer structures to achieve efficient optical coupling onto the active area of the detectors.

AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications

AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications
Author: Godfrin, Aurélien
Publisher: KIT Scientific Publishing
Total Pages: 146
Release: 2022-05-10
Genre: Technology & Engineering
ISBN: 3731510960
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This work focuses on two topics. The first is the investigation of producing filaments on copper-stabilized coated conductors, with striations made after or before electroplating the tape. The second topic is the applicability of the striations for reducing the AC losses of cables, in particular the CORC® and RACC cables, which are made with high-temperature superconductor (HTS) striated tapes.

Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications

Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications
Author: Buchholz, Alexander
Publisher: KIT Scientific Publishing
Total Pages: 246
Release: 2022-07-27
Genre: Technology & Engineering
ISBN: 3731511940
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High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.

Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils

Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils
Author: Gyuráki, Roland
Publisher: KIT Scientific Publishing
Total Pages: 194
Release: 2022-02-24
Genre: Science
ISBN: 3731510642
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This work presents the development and application of high-speed fluorescent thermal imaging for quench analysis in high-temperature superconductors (HTS). Using a fluorescent coating, with a temperature-dependent light emission, temperature changes can be calculated over 2D surfaces. The technique uncovered peculiar transient effects in novel HTS tape architectures and also helped to verify and better understand hot spot development in both insulated and non-insulated, HTS–wound pancake coils.

Superconductors in the Power Grid

Superconductors in the Power Grid
Author: C. Rey
Publisher: Elsevier
Total Pages: 463
Release: 2015-04-20
Genre: Technology & Engineering
ISBN: 1782420371
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Superconductors offer high throughput with low electric losses and have the potential to transform the electric power grid. Transmission networks incorporating cables of this type could, for example, deliver more power and enable substantial energy savings. Superconductors in the Power Grid: Materials and Applications provides an overview of superconductors and their applications in power grids. Sections address the design and engineering of cable systems and fault current limiters and other emerging applications for superconductors in the power grid, as well as case studies of industrial applications of superconductors in the power grid. - Expert editor from highly respected US government-funded research centre - Unique focus on superconductors in the power grid - Comprehensive coverage

Evaluation of the Use of Superconducting 380 kV Cable

Evaluation of the Use of Superconducting 380 kV Cable
Author: Kottonau, Dustin
Publisher: KIT Scientific Publishing
Total Pages: 138
Release: 2020-11-03
Genre: Technology & Engineering
ISBN: 373151026X
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Diese Studie führt eine Auslegung von supraleitenden Kabeln für die Anwendung im 380-kV-Drehstromnetz durch und erläutert allgemeine Aspekte des Einsatzes solcher Kabel im Höchstspannungsnetz. Dabei vergleicht sie die Supraleitungstechnologie unter vielen verschiedenen Kriterien mit anderen Leitungstechnologien. - This study describes the design of superconducting cables for use in the 380 kV three-phase network and explains general aspects of the use of such cables in the extra-high voltage grid. It compares the superconducting technology with other line technologies under many different criteria.