Design and analysis of the 16T superconducting magnet for CFETR strand test facilities

Wang, Dongquan; Ren, Yong; Zhang, Ming; Gao, Xiang

doi:10.1016/j.fusengdes.2020.112097

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…Superconducting magnets are the core components of Magnetic Resonance Imaging (MRI) [1][2][3], Nuclear Magnetic Resonance (NMR) [4,5], fusion energy devices [6] and any other high energy physics and nuclear devices. For example, high field MRI plays an important role in biomedical research.…”

Section: Introductionmentioning

confidence: 99%

Interlaminar shear strength of vacuum pressure impregnated coils with epoxy resin for high field magnet at cryogenic temperature

Wang

Zhao

Liu

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The interlaminar shear properties of epoxy impregnated coils are critical parameter to the design of the high field superconducting magnets. The existing test methods of the interlaminar shear strength of the composite insulation systems for the superconducting magnet coils in cryogenic temperature were discussed. The insulation system of the niobium titanium superconductor coated with woven glass fiber reinforced polymer coil were fabricated by vacuum pressure impregnation with IR-3 and CTD-101K resins. Short beam shear tests of the impregnated coil were performed at room temperature and liquid nitrogen temperature (77K). The results show that the interlaminar shear strength of the samples used IR-3 resin are better than CTD-101K both at room and cryogenic temperature. A detailed observation of the failed specimens was also investigated to verify the failure mechanisms by optical microscopy.

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Section: Introductionmentioning

confidence: 99%

Interlaminar shear strength of vacuum pressure impregnated coils with epoxy resin for high field magnet at cryogenic temperature

Wang

Zhao

Liu

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Superconducting magnets have the advantages of smaller space occupied and higher magnetic field intensity, which can meet the increasingly tough requirements of accelerator magnets. So, they are widely applied by major accelerator research institutions [7][8][9]. As the superior performance of the superconducting magnet, the magnet and the supporting power supply are becoming a research hotspot in the field of heavy ion accelerators.…”

Section: Introductionmentioning

confidence: 99%

On a Novel Topology of Matrix Converter Applied to Accelerator DC Power Supply

2022

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The current topology schemes of heavy ion accelerator power supply have serious pollution to the power grid caused by low power factor of the grid side. Considering the characteristics of adjustable power factor and bidirectional energy transfer of the matrix converter, the possibility of which applied to the accelerator DC power supply is studied and three kinds of backup topology schemes including the preceding regulated matrix rectifier (MR) are proposed in this article. Given the actual situation of accelerator power supply, research has been focused on the modulation strategy suitable for the topology of the preceding regulated MR and simulation validation. Based on simulation of the preceding regulated MR scheme, a matrix power prototype is developed. A power factor tester is utilized to test grid side power factor. According to the experimental results, it is prospectively feasible to apply the preceding regulated MR topology to accelerator DC power supply, with excellent performance of the grid side.

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Research on the action characteristics and breaking control of 100 kA series double break DC vacuum circuit breaker for CRAFT quench protection system

Hu,

Li,

et al. 2023

AIP Advances

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The DC vacuum circuit breaker plays an important role in the quench protection system of the Comprehensive Research Facility for Fusion Technology (CRAFT) project. The study of the operating characteristics of vacuum circuit breakers can effectively improve breaking reliability. This article introduces the design and basis of the series double break DC vacuum circuit breaker for the CRAFT quench protection system. It adopts the electromagnetic repulsion driving method to ensure rapid action and the operating mechanism design to ensure the synchronization of the double break action. A magnetic shielding setting is proposed through simulation calculations to solve the uniformity of magnetic induction strength between breaks. Combining the test data of action characteristics with the theory of optimal opening distance for current zero crossing, a DC breaking platform for the vacuum circuit breaker was designed, and control strategies were determined, thus completing the 100 kA DC breaking experiment. The vacuum circuit breaker studied in this article meets the technical requirements of the CRAFT quench protection system and provides experience and experimental data for the design of high-current vacuum circuit breakers.

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Design and analysis of the 16T superconducting magnet for CFETR strand test facilities

Cited by 4 publications

References 20 publications

Interlaminar shear strength of vacuum pressure impregnated coils with epoxy resin for high field magnet at cryogenic temperature

Interlaminar shear strength of vacuum pressure impregnated coils with epoxy resin for high field magnet at cryogenic temperature

On a Novel Topology of Matrix Converter Applied to Accelerator DC Power Supply

Research on the action characteristics and breaking control of 100 kA series double break DC vacuum circuit breaker for CRAFT quench protection system

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