Enabling High-Temperature Superconducting Technologies Toward Practical Applications

Jin, Jian Xun; Xin, Ying; Wang, Qiu L.; He, Yu; Cai, Chuan; Wang, Yin S.; Wang, Zan M.

doi:10.1109/tasc.2014.2346496

Cited by 85 publications

(31 citation statements)

References 116 publications

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“…All magnets of HL-2M are made up of copper. Although supper conductor (SC) is used on tokamaks, e.g., ITER [1] and EAST [6], and HTSC is being well studied [7], copper still owns lots of advantages, e.g., simple engineering, low-cost, high flexibility, and finally facilitates frontier experimental studies toward fusion energy realization.…”

Section: Design Of the Magnetsmentioning

confidence: 99%

Design and Development of Magnets for HL-2M Tokamak

Zou

et al. 2016

IEEE Trans. Appl. Supercond.

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HL-2M is a medium-sized copper-conductor tokamak under construction at the Southwestern Institute of Physics. The designed plasma parameters of HL-2M are as follows: plasma current = 2.5 MA, toroidal field = 2.2 T, major radius = 1.78 m, minor radius = 0.65 m, flux swing > 14 V · s, and plasma pulse ∼5 s, with a plasma shape of elongation = 2 and triangularity > 0.5. To fulfill physics needs, the HL-2M coil system is designed to drive, shape, and confine plasma. It includes poloidal field coils and toroidal field coils (TFCs). HL-2M takes advantage of a demountable TFC to facilitate assembly of components inside the TFC and make the whole tokamak flexible for experiment and operation and provide good accessibility to plasma for plasma heating, diagnostic, and control. This structure also results in difficulties to design and fabricate magnets. The design and development of the coils are presented.

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Section: Design Of the Magnetsmentioning

confidence: 99%

Design and Development of Magnets for HL-2M Tokamak

Zou

et al. 2016

IEEE Trans. Appl. Supercond.

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“…When U R (t) < U max , the power-load resistor is operated in a voltage sag state and the I-V chopper is operated in the energy discharge state. The system current and voltage equations can be expressed by (1), (6), and (7)…”

Section: Energy Exchange Circuitmentioning

confidence: 99%

“…The main role of the energy storage systems (ESSs) is to increase the penetration of renewable energy sources such as photovoltaic power plants, to level the load curve, to contribute to the frequency control, to upgrade the transmission line capability, to mitigate the voltage fluctuations, and to increase the power quality and reliability, etc. Various ESSs can be used to allow increased capacity and stability to be derived from any given quantity of physical resources like photovoltaic power plant, and should be considered as a strategic choice that allows for optimum use of existing and new resources of all kinds [1][2][3][4][5][6].…”

Section: Introduction To Energy Storagementioning

confidence: 99%

Superconducting Magnetic Energy Storage Modeling and Application Prospect

Jin

Chen

2016

Advances in Solar Photovoltaic Power Plants

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Superconducting magnetic energy storage (SMES) technology has been progressed actively recently. To represent the state-of-the-art SMES research for applications, this work presents the system modeling, performance evaluation, and application prospects of emerging SMES techniques in modern power system and future smart grid integrated with photovoltaic power plants. A novel circuit-fieldsuperconductor coupled SMES energy exchange model is built and verified to bridge the applied superconductivity field to the electrical engineering and power system fields. As an emerging SMES application case to suit photovoltaic power plants, a novel low-voltage rated DC power system integrated with superconducting cable and SMES techniques is introduced and verified to implement both the highperformance fault current limitation and transient power buffering functions. Four principal SMES application schemes of a sole SMES system, a hybrid energy storage system (HESS) consisting of small-scale SMES and other commercial energy storage systems, a distributed SMES (DSMES) system, and a distributed HESS (DHESS) are proposed and compared for achieving efficient and economical power management applications in future photovoltaic power plants.

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“…Owing to its large current capacity and high irreversible field, the second generation high-temperature superconducting (HTS) YBa 2 Cu 3 O 7−x (YBCO) tape, also called YBCO-coated conductor (CC), is of wide prospection to be used in electric power field, such as current transmission cables, transformers, motors, and electromagnets [1,2]. The YBCO CC is composed of flexible metal substrate, buffer layer, YBCO layer, and protective layer from bottom to top.…”

Section: Introductionmentioning

confidence: 99%

Temperature-Modulated Growth of MOCVD-Derived YBa2Cu3O7−x Films on IBAD-MgO Templates

Zhang

Xiong

Zhao

et al. 2015

J Supercond Nov Magn

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The cost-effective and environment-friendly template of LaMnO 3 /epi-MgO/ion beam-assisted deposited (IBAD-)MgO/solution deposition planarized (SDP) Y 2 O 3 /Hastelloy tape was used as the substrate, on which the technique of metal organic chemical vapor deposition (MOCVD) has been applied to depositing 1.2-μm-thick YBa 2 Cu 3 O 7−x (YBCO) films by modulating the substrate temperature ranging from 750 to 850 • C. The effects of substrate temperature on the preferential orientation, textures, surface morphology, and performance of the YBCO films were systematically investigated. X-ray diffraction and scanning electron microscope revealed that as substrate temperature increased from 750 to 810 • C, the orientation of YBCO films was transferred from the a-axis to the c-axis; meanwhile, the textures were improved and the films became denser. However, as the substrate temperature rose above 810 • C, the composition distributions and textures of YBCO films degraded quickly, and the films were barium-poor with CuYO 2 impurity arising, of which all negatively affected the critical current density (J c ) of YBCO films. Around 810 • C, the YBCO film was of the best crystallization and microstructure as well as highly epitaxial growth, leading to the highest J c of 1.8 MA/cm 2 at 77 K and self-field.

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Enabling High-Temperature Superconducting Technologies Toward Practical Applications

Cited by 85 publications

References 116 publications

Design and Development of Magnets for HL-2M Tokamak

Design and Development of Magnets for HL-2M Tokamak

Superconducting Magnetic Energy Storage Modeling and Application Prospect

Temperature-Modulated Growth of MOCVD-Derived YBa2Cu3O7−x Films on IBAD-MgO Templates

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