Design and Optimization of High‐Temperature Superconducting Racetrack Magnet for the Rotor of a 100‐kW Generator

Li, Yang; Qu, Timing; Gu, Chen; Jiang, Yu; Yang, Ye; Yuan, Weijia; Liu, Rui; Han, Z.

doi:10.1109/tasc.2014.2383176

Cited by 12 publications

(3 citation statements)

References 11 publications

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“…To reduce material consumption, enhance the heat transfer or improve motor performance, several similarly irregularly shaped magnets have been proposed by researchers for HTS motors [12][13][14]. However, our stepped magnet is mainly aimed at improving the performance of EDS on-board magnet.…”

Section: Introductionmentioning

confidence: 99%

Design optimization of a stepped HTS magnet for electrodynamic suspension train

Li,

Liu,

Zhou

et al. 2023

Supercond. Sci. Technol.

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High-temperature superconducting (HTS) magnets are promising candidates for transportation and power systems, such as the electrodynamic suspension (EDS) train, ultra-high field magnet and magnetic resonance imaging, because of its large current-carrying capacity and low power loss. The critical current depending on magnetic flux density is an essential factor assessing the application performance of HTS magnet. The existing HTS magnet is wound with rectangular cross-section as usual, which results in magnetic field concentration inside winding. In this paper, we proposed a novel HTS magnet structure with stepped cross-section to alleviate the magnetic field concentration, and resultantly improve the critical current. From this point, this paper is aimed to design and optimize a stepped HTS magnet with the critical current maximized. Firstly, the structure design of the stepped HTS magnet is performed with a consideration of the application scenario of EDS train. Then, the critical current of the HTS magnet is estimated with a homogenized self-consistent model. Afterwards, an HTS magnet with stepped cross-section is optimized, fabricated and finally tested. The critical current was experimentally measured to verify the simulation results, followed by the electromagnetic investigations of the stepped HTS magnet in the EDS train.

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Section: Introductionmentioning

confidence: 99%

Design optimization of a stepped HTS magnet for electrodynamic suspension train

Li,

Liu,

Zhou

et al. 2023

Supercond. Sci. Technol.

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“…Some recent research papers focus on optimization of these linear generators, such as the graphical optimization is presented in [16] for an iron-less and brush-less PMLG. The optimization of two tubular PMLGs for OWE conversion are presented in [17] optimization of a superconducting racetrack magnet for the rotor of a wind-farm generator is described in [18]. However, the shape optimization of the stator and translator as shown in [19] and [20] greatly affects and improves different electrical and magnetic parameters of the linear generator.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Novel Dual-Port Linear Generator for Oceanic Wave Energy Conversion

Farrok

Islam

Muttaqi

et al. 2020

IEEE Trans. Ind. Electron.

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All the existing linear generators used for oceanic wave energy conversions are basically a single-port linear electrical generators (SPLEGs). The conventional SPLEG transfers electrical power to the load/grid discontinuously due to its working principle and the intermittent nature of oceanic waves. This paper proposes a new dual-port linear electrical generator (DPLEG) topology, which is capable to transfer electrical power with an adequate voltage even at zero vertical velocity of the oceanic wave. The analysis shows that the efficiency and the performance of the DPLEG depend greatly on the stator tooth design. For this reason, the proposed DPLEG is optimized using the genetic algorithm for successful operation. The shape optimization method is implemented to determine the stator tooth shape of the DPLEG. By optimizing the stator tooth shape, the force ripples of the proposed DPLEG is further reduced by 40.89%. The analysis is carried out using multiphysics simulation and the electromagnetic performance is determined by the finite element analysis. Simulation results show that the shape optimization of the stator tooth not only minimizes the force ripples of the translator but also increases the power generation of the DPLEG. A laboratory prototype of the proposed DPLEG is built to test the concept of the proposed DPLEG topology. The experimental results verify its unique advantage by showing that it can generate an adequate voltage even at zero vertical velocity of the oceanic wave which cannot be achieved using the existing SPLEGs.

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“…Theoretically, decreasing the perpendicar magnetic field of inner side of the filed coil can improve the I c . In reference [4,5], step-shaped field coil is proposed as an optimal method to improve the magnetic field distribution and achive higher I c with less HTS tape consumption.…”

Section: Introductionmentioning

confidence: 99%

Investigation of step-shaped field coil for large capacity superconducting motors

Jiang

Jin

2015

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

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In this paper, a step-shaped field coil for large capacity superconducting motors application is investigated. As compared to a conventional rectangular cross-sectional shaped field coil, the step-shaped one can obtain the same air gap magnetic field intensity at a target point located at symmetry axis of field coil with reduced HTS tape consumption, and it also improves the critical current significantly. In addition, the characteristic of the different gaps between two adjacent coil layers is also analyzed.

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Design and Optimization of High‐Temperature Superconducting Racetrack Magnet for the Rotor of a 100‐kW Generator

Cited by 12 publications

References 11 publications

Design optimization of a stepped HTS magnet for electrodynamic suspension train

Design optimization of a stepped HTS magnet for electrodynamic suspension train

Design and Optimization of a Novel Dual-Port Linear Generator for Oceanic Wave Energy Conversion

Investigation of step-shaped field coil for large capacity superconducting motors

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