HTS axial flux induction motor with analytic and FEA modeling

Li, S.; Yang, Fan; Fang, Jin; Qin, Wei; Lv, Gang; Li, J.H.

doi:10.1016/j.physc.2013.04.021

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…IGH temperature superconducting (HTS) motors exhibit many advantages compared with the conventional copper counterparts, such as compact size and high power density [1]. Both partially and fully HTS motors were developed in literature aiming for maximizing power density in different applications [2][3][4][5]. However, high AC loss in HTS armature winding imposes challenge on cryogenic cooling system, and it is a key issue requiring solution to enable practical application of HTS machine especially for electric aircraft [6].…”

Section: Introductionmentioning

confidence: 99%

A Fast Numerical Modeling Approach Based on Boundary Field Method for Calculating AC Losses in Superconducting Motors

Wang

Song

Yazdani-Asrami

et al. 2023

IEEE Trans. Appl. Supercond.

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To improve the computational efficiency of the numerical methods for calculating AC loss in HTS motor, a new method called 'Boundary field method' is proposed in this paper. This method combines the strength of ANSYS and COMSOL, which can reduce the complexity of modeling and computation time. In this paper, three finite element method (FEM) based models, as case studies, were developed for a 100-kW superconducting induction motor. Model A models entire motor in COMSOL using A-H formulation, considering non-linear E-J relationship of HTS tapes, which can calculate AC loss of motor directly; Combining another two models: Model B (the same entire superconducting motor in ANSYS) and Model C (only superconducting stator windings in COMSOL) can achieve new method for calculating AC loss. The AC loss calculation error between two methods for two-layer windings in one slot is 2.5% and 7%, respectively. These results conclude the effectiveness and accuracy of 'Boundary field method'. More importantly, the computation time reduces dramatically from 48 hours in Model A to only 2 hours for proposed approach. This accurate and computationally efficient new numerical modelling approach could be used to calculate AC loss in various types of superconducting applications in future.

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Section: Introductionmentioning

confidence: 99%

A Fast Numerical Modeling Approach Based on Boundary Field Method for Calculating AC Losses in Superconducting Motors

Wang

Song

Yazdani-Asrami

et al. 2023

IEEE Trans. Appl. Supercond.

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“…Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. the advantages of HTS windings, fully HTS machines have been proposed, in order to maximize machine power density for applications [10,15,16].…”

Section: Introductionmentioning

confidence: 99%

Fully superconducting machine for electric aircraft propulsion: study of AC loss for HTS stator

Weng

Zhang

Lan

et al. 2020

Supercond. Sci. Technol.

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Fully superconducting machines provide the high power density required for future electric aircraft propulsion. However, superconducting windings generate AC losses in AC electrical machine environments. These AC losses are difficult to eliminate at low temperatures, and they add an extra burden to the aircraft cooling system. Due to the heavy cooling penalty, AC loss in the HTS stator is one of the key topics in HTS machine design. In order to evaluate the AC loss of superconducting stator windings in a rotational machine environment, we designed and built a novel axial-flux high temperature superconducting (HTS) machine platform. The AC loss measurement is based on the calorimetric boiling-off of liquid nitrogen. Both total AC loss and magnetisation loss in the HTS stator are measured under the condition of a rotational magnetic field. This platform represents a key element in studying ways to minimise AC losses in an HTS stator, in order to maximise the efficiency of fully HTS machines.

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Leakage flux reduction of axial-flux switching PM machine by using HTS-disk

Arish

2021

Physica C: Superconductivity and its Applications

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HTS axial flux induction motor with analytic and FEA modeling

Cited by 5 publications

References 10 publications

A Fast Numerical Modeling Approach Based on Boundary Field Method for Calculating AC Losses in Superconducting Motors

A Fast Numerical Modeling Approach Based on Boundary Field Method for Calculating AC Losses in Superconducting Motors

Fully superconducting machine for electric aircraft propulsion: study of AC loss for HTS stator

Leakage flux reduction of axial-flux switching PM machine by using HTS-disk

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