Development and Characterization of a 2G HTS Roebel Cable for Aircraft Power Systems

Fetisov, S.S.; Зубко, В.; Zanegin, Sergey; Nosov, A.A.; Vysotsky, V.S.; Kario, A.; Kling, A.; Goldacker, W.; Molodyk, Alexander; Mankevich, A.; Kalitka, V.S.; Adamenkov, A. A.; Samoilenkov, S. V.; Melyukov, Dmitry

doi:10.1109/tasc.2016.2549036

Cited by 26 publications

(12 citation statements)

References 11 publications

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“…A leading option for magnets is (RE)Ba 2 Cu 3 O 7-x (REBCO) conductors [1][2][3][4][5][6][7]. In addition to conductor development, the last decade has seen a rapid advancement in cable technology, especially based on REBCO [3,[8][9][10][11][12][13][14][15]. Although some magnets can be successfully wound from a single REBCO conductor [4,16], like high field inserts for users magnets or superconducting motors and generators.…”

Section: Introductionmentioning

confidence: 99%

SMART conductor on round core (CORC^®) wire via integrated optical fibers

Scurti¹,

Weiss²,

Laan³

et al. 2021

Supercond. Sci. Technol.

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Superconducting cables based on high temperature superconductors (HTS) are necessary for applications requiring large currents and low inductance, such as compact fusion reactors. In this paper, we report the proof-of-concept of a SMART Conductor on Round Core (CORC®) wire realized via integration of optical fibers into the copper core. A SMART CORC® wire with integrated optical fibers was manufactured and its capabilities have been experimentally demonstrated. Results show that by interrogating the optical fibers via Rayleigh backscattering, a Spectral Shift signal as a function of time and position along the cable can be used to detect and locate hot-spots that are developed within the wire or its terminations. It has been found that highly localized current injection into the terminations could initiate hot-spots within the cable at locations where current redistribution between tapes occur. This effect is virtually eliminated when adequate current connections are used that inject current evenly along the cable terminations. Normal zone propagation velocities have been calculated as a function of time using Spectral Shift data for a heater-induced quench as well as a quench induced by overcurrent. In both cases the normal zone propagation velocity was about 6 cm s−1, but in the heater-induced experiment it was preceded by 500 ms of slower propagation at 2.5 cm s−1.

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Section: Introductionmentioning

confidence: 99%

SMART conductor on round core (CORC^®) wire via integrated optical fibers

Scurti¹,

Weiss²,

Laan³

et al. 2021

Supercond. Sci. Technol.

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show abstract

“…automatized the cable assembly process and developed methods for quality control [4,5]. Roebel cables have been considered for use in high-field accelerator [6,7] or fusion magnets [8], and also for power applications such as transformers [9,10]. A unique property of REBCO Roebel cables is that the strands are transposed, but not twisted, and the anisotropic properties of coated conductors are retained.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic monoblock model for computing AC loss in partially coupled Roebel cables

Otten

Kario

Demenčík

et al. 2020

Supercond. Sci. Technol.

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When exposed to time-dependent magnetic fields, REBCO Roebel cables generate AC loss resulting from both magnetic hysteresis and induced inter-strand coupling currents. Until now, the AC loss has been computed in a two-dimensional approximation assuming fully coupled or decoupled strands, and a finite inter-strand resistance could be simulated only with three-dimensional models. In this work, we propose a homogenization procedure that reduces the three-dimensional geometry of the Roebel cable to two dimensions, without ignoring connections between the strands. The homogenized cable consists of two parallel ‘monoblocks’ with an anisotropic resistivity. The proposed model enables computation of AC coupling loss without the need for complex three-dimensional simulations. For experimental validation, a Roebel cable with soldered strands was prepared. The inter-strand resistance was determined by applying a transverse current and measuring the voltage profile. Additionally, the AC magnetization loss of the cable was measured in fields of 1 to 50 mT with frequencies of 1 to 2048 Hz using a calibration-free technique. With the measured inter-strand resistance as input parameter, the monoblock model gives a good estimate for the AC loss, even for conditions in which the coupling loss is dominant.

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“…In this regard, NASA and AFRL have decided to use superconductors in the hybrid and fully electric aircrafts [1] [2]. Generally, Roebel cables have been proposed by many researchers for the power transmission applications as its structural arrangement leads to fewer losses [3]- [8].…”

Section: Introductionmentioning

confidence: 99%

Numerical Model to Calculate Magnetization AC Losses for Superconducting Strip used for Current Transport Applications in Electric Aircrafts

Agrawal¹,

Kumar²

2019

IJEAT

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High Temperature Superconducting (HTS) tapes are being proposed in the current transportation applications in electric aircrafts due to their capacities to carry large currents with low losses and higher efficiencies. Many systems are involved in the aircraft power distribution units and each component has its own magnetic field which may affect the working of surrounding systems. It has been found from many studies that perpendicular field has significant effect on the critical current of the HTS tape. In the present study, effort has been made to develop a numerical code through which magnetization AC losses due to external magnetic field are evaluated for YBCO superconductor. Calculated values are compared with Halse-Brandt model and it has been found that with the increase in the index value ‘n’, the results are approaching the Halse-Brandt model.

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Development and Characterization of a 2G HTS Roebel Cable for Aircraft Power Systems

Cited by 26 publications

References 11 publications

SMART conductor on round core (CORC^®) wire via integrated optical fibers

SMART conductor on round core (CORC^®) wire via integrated optical fibers

Anisotropic monoblock model for computing AC loss in partially coupled Roebel cables

Numerical Model to Calculate Magnetization AC Losses for Superconducting Strip used for Current Transport Applications in Electric Aircrafts

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Development and Characterization of a 2G HTS Roebel Cable for Aircraft Power Systems

Cited by 26 publications

References 11 publications

SMART conductor on round core (CORC®) wire via integrated optical fibers

SMART conductor on round core (CORC®) wire via integrated optical fibers

Anisotropic monoblock model for computing AC loss in partially coupled Roebel cables

Numerical Model to Calculate Magnetization AC Losses for Superconducting Strip used for Current Transport Applications in Electric Aircrafts

Contact Info

Product

Resources

About

SMART conductor on round core (CORC^®) wire via integrated optical fibers

SMART conductor on round core (CORC^®) wire via integrated optical fibers