Excitation Tests of Prototype HTS Coil With Bi2212 Cables for Development of High Energy Density SMES

Tosaka, Taizo; Koyanagi, K.; Ohsemochi, K.; Takahashi, Masahiko; Ishii, Yusuke; Ono, M.; Ogata, H.; Nakamoto, K.; Takigami, H.; Nomura, Shunji; Kidoguchi, K.; Onoda, Hiroko; Hirano, Naoki; Nagaya, S.

doi:10.1109/tasc.2007.899871

Cited by 20 publications

(7 citation statements)

References 5 publications

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“…The energy density of a magnetic field is energy density false( SMES false) = 1 2 μ H 2 where μ is the permeability of the storage medium and H is the strength of the magnetic field, which increases with current to limit of the critical current beyond which superconductivity is quenched. Practically, energy densities have been achieved with SMES that are 20× that of classical magnets …”

Section: Smaller Scale Grid and Distributed Energy Storagementioning

confidence: 99%

“…Practically, energy densities have been achieved with SMES that are 20× that of classical magnets. 79 As opposed to batteries, SMES systems are capable of near total discharge of the stored energy and can be continuously operated over a large number of complete charge-discharge cycles on a fast millisecond response time (ms). Although original SMES design and installation targeted large-scale systems, 80 most installations of SMES are in the range of 280-830 MWh capacity with power outputs as high as 2.5 MW.…”

Section: Superconducting Magnetic Energy Storagementioning

confidence: 99%

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Solar Energy Supply and Storage for the Legacy and Nonlegacy Worlds

et al. 2010

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In 2001, he began studies at Boston University, earning a B.A. in Chemistry while working in the laboratory of Prof. John P. Caradonna. In the fall of 2005, he began graduate school in the laboratory of Prof. Daniel G. Nocera at the Massachusetts Institute of Technology, focusing on molecular approaches for solar energy conversion, specifically photochemical halogen production. Tim began a postdoctoral appointment at the University of Utah in the laboratory of Prof. Peter J. Stang in the summer of 2010. Dilek K. Dogutan, was born and grew up in Erenko ¨y/Istanbul, Turkey.

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Section: Smaller Scale Grid and Distributed Energy Storagementioning

confidence: 99%

Section: Superconducting Magnetic Energy Storagementioning

confidence: 99%

Solar Energy Supply and Storage for the Legacy and Nonlegacy Worlds

et al. 2010

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“…Coils and cables based on high temperature superconductors (HTS) possess the advantage of carrying high electrical current density [1,2]. HTS coated conductor coils are being used for superconducting power applications, such as superconducting fault current limiters [3,4] and superconducting transformers [5,6].…”

Section: Introductionmentioning

confidence: 99%

Power dissipation in HTS coated conductor coils under the simultaneous action of AC and DC currents and fields

Shen

Geng

et al. 2018

Supercond. Sci. Technol.

100

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This paper presents a comprehensive AC loss study of a circular HTS coil. The AC losses from a circular double pancake coil were measured using the electrical method. A 2D axisymmetric H-formulation model using FEM package COMSOL Multiphysics has been established, which was able to make consistency with the real circular coil used in the experiment. To model a circular HTS coil, a 2D axisymmetric model provided better accuracy than a general 2D model, and was also more efficient than a 3D model. Three scenarios have been analysed: Scenario 1 AC transport current and DC magnetic field (experiment and simulation); Scenario 2 DC transport current and AC magnetic field (simulation); Scenario 3 AC transport current and AC magnetic field (simulation and experimental data support). The angular dependence analysis on the coil under the magnetic field with the different orientation angle  has been carried out for all three scenarios. For Scenario 3, we investigated the effect of relative phase difference ∆ between AC current and AC field on the total AC loss of the coil. To summarise, we have carried out a current/field/angle/phase dependent AC loss (I, B, , ∆) study of circular HTS coil, which could potentially benefit the future design and research of HTS AC systems.

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“…After testing, its critical current under liquid nitrogen is 650 A [13]. In addition, some cables containing many Bi2212 wires are constantly manufactured to increase the energy storage of SMES systems [14,15].…”

Section: Introductionmentioning

confidence: 99%

High temperature superconducting CORC cable with variable winding angles for low AC loss and high current carrying SMES system

Zheng,

Cheng,

et al. 2023

Supercond. Sci. Technol.

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Owing to the rising demand for enhanced high-current capacity within superconducting magnetic energy storage (SMES) system used in power grids, there is a growing focus on enhancing the current-carrying capability of SMES setups wound with conductor on round core (CORC) cables. However, it is crucial to note that the dissipation of AC losses in CORC cables during rapid charge and discharge cycles can substantially impact the safe operation of SMES. The CORC cable is crafted by spirally winding numerous ReBCO tapes around copper tubes. Even slight alterations in the winding angles of these tapes can result in shifts at current distribution across the ReBCO tapes, thus leading to differences in AC losses. Hence, the primary objective of this paper is to study the effect of varying winding angles of each ReBCO layer on AC loss. The adoption of variable angles results in the reduction of current flowing through the outermost tapes. And the AC losses in the outermost tapes happen to account for the majority of the total AC losses. Through simulations and experiments, it was observed that the AC loss in the CORC cable with variable angles (4 × 12, 25°–40°) was 25% lower than that in the case of fixed angles (3 × 11, 45°). These findings demonstrate a noteworthy downward trajectory in AC losses when variable angles are applied to the CORC cable. These insights hold significant value for the practical application of CORC cables within SMES systems.

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Excitation Tests of Prototype HTS Coil With Bi2212 Cables for Development of High Energy Density SMES

Cited by 20 publications

References 5 publications

Solar Energy Supply and Storage for the Legacy and Nonlegacy Worlds

Solar Energy Supply and Storage for the Legacy and Nonlegacy Worlds

Power dissipation in HTS coated conductor coils under the simultaneous action of AC and DC currents and fields

High temperature superconducting CORC cable with variable winding angles for low AC loss and high current carrying SMES system

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