Electromagnetic optimization design of a HTS magnet using the improved hybrid genetic algorithm

Wang, Chao; Wang, Qiuliang; Huang, Hui; Song, Shousen; Dai, Yinming; Deng, Fanping

doi:10.1016/j.cryogenics.2005.08.007

Cited by 16 publications

(5 citation statements)

References 2 publications

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“…For the diameter of 100 mm warm bore, the diameter of coils should be 148 mm considering the cryostat structure. Basic design method is with hybrid genetic optimal method [5]. The center magnetic field is generated with the main coils.…”

Section: A Electromagnetic Design For Superconducting Coilmentioning

confidence: 99%

Design of Adjustable Homogeneous Region Cryofree Conduction-Cooled Superconducting Magnet for Gyrotron

Wang

Dai

Zhao

et al. 2009

IEEE Trans. Appl. Supercond.

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A conduction cooled superconducting magnet with the center field from 1.3 to 4 T and the warm bore of 100 mm in diameter has designed, fabricated and tested. The magnet was designed on the basis of the hybrid genetic optimal method. The superconducting magnet has the adjustable homogenous regions with the lengths from 200 mm to 320 mm. The magnet generated the multi-homogeneous regions with the constant lengths of 200, 250 and 320 mm. The homogeneity of magnetic field is about 0.5% with the constant homogenous region lengths and 1.0% for adjusting homogenous lengths. The magnetic field is decayed to 1/15-1/20 from the front point of homogeneous region to 200 mm. The magnet is cooled by one 1.5 Watt 4 K GM refrigerator. In the paper, the results on the design, fabrication and test of the superconducting magnet are presented.

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Section: A Electromagnetic Design For Superconducting Coilmentioning

confidence: 99%

Design of Adjustable Homogeneous Region Cryofree Conduction-Cooled Superconducting Magnet for Gyrotron

Wang

Dai

Zhao

et al. 2009

IEEE Trans. Appl. Supercond.

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show abstract

“…Because it is only necessary to calculate the value of the electromagnetic field objective function on the sampling points, the algorithm efficiency is enhanced greatly. Sometimes in the optimization design of an electromagnetic installation, unifying the Moving Least Squares method with the simulated annealing method has very good results (Chao Wang et al 2006). The convergence rate of these algorithms, however, still cannot satisfy the requirements for computing complex large-scale systems, for example, three-dimensional calculations, transient processes or coupled systems, at present.…”

Section: Numerical Methods For Magnet Designmentioning

confidence: 99%

Superconducting Magnet Technology and Applications

Wang¹,

Zhang²,

Cui³

2012

Superconductors - Materials, Properties and Applications

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“…A number of attempts have been made to estimate the operating current of HTS magnets. Some of the works were based on the relation [2], [3] and others were based on -relation [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Current Estimation of an HTS BSCCO Magnet Having Multiple Power Sources Based on the Field Dependent $E{\hbox{–}}J$ Relation

Kang

Koo

Lee

et al. 2009

IEEE Trans. Appl. Supercond.

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Due to the anisotropy of a tape-shaped HTS wire, the method to determine the operating current of an HTS magnet needs to be different from that of a LTS magnet. This paper presented estimation of the critical current of pancake windings excited by multiple power sources. Critical currents were determined by using field dependent -relation. A new method to define the magnetic field of the HTS wire has been proposed in this paper. Calculated critical currents of pancake windings were compared with measured ones of the HTS BSCCO magnet consisting of 10 pancake windings. Effects of multiple power excitation on the increment of the central magnetic field has been also described. Test results showed the estimated critical currents of pancake windings agreed well with that of measured ones and the central magnetic field was increased at multiple power excitation by 28.4% comparing with that of single power excitation.Index Terms--relation, HTS BSCCO magnet, multiple power excitation, pancake winding.

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Electromagnetic optimization design of a HTS magnet using the improved hybrid genetic algorithm

Cited by 16 publications

References 2 publications

Design of Adjustable Homogeneous Region Cryofree Conduction-Cooled Superconducting Magnet for Gyrotron

Design of Adjustable Homogeneous Region Cryofree Conduction-Cooled Superconducting Magnet for Gyrotron

Superconducting Magnet Technology and Applications

Current Estimation of an HTS BSCCO Magnet Having Multiple Power Sources Based on the Field Dependent $E{\hbox{–}}J$ Relation

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