Comparative study of a new structure of HTS-bulk axial flux-switching machine

Arish, Nima; Marignetti, Fabrizio; Yazdani-Asrami, Mohammad

doi:10.1016/j.physc.2021.1353854

Cited by 10 publications

(4 citation statements)

References 22 publications

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“…Numerous electrical motors designed for marine propulsion have been presented in the literature and compared in references [8][9][10]. The unique properties of high-temperature superconductor (HTS) materials have led to their application in high-power systems such as ship propulsion, resulting in improved performance [11][12][13]. However, the use of HTS materials in ship propulsion presents challenges, including increased complexity and the cost of the cooling system.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

Arish,

Kamper,

Wang

2024

WEVJ

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The evolution of electric propulsion systems in the maritime sector has been influenced significantly by technological advancements in power electronics and machine design. Traditionally, these systems have employed surface-mounted permanent magnet synchronous motors (PMSMs) in podded configurations. However, the advent of permanent magnet Vernier motors (PMVMs), which leverage magnetic gearing effects, presents a novel approach with promising potential. This study conducts a comparative analysis between PMVMs and conventional PMSMs at a power level of 5 MW for podded ship propulsion, with a particular focus on the impact of gear ratios (Gr). An objective function was developed that integrates motor dimension constraints and the power factor (PF), a critical yet frequently neglected parameter in existing research. The findings indicate that PMVMs with lower Gr have lower mass and cost compared to those with higher Gr and traditional PMSMs, at a PF level of 0.7, which is high for Vernier machines. Moreover, PMVMs with lower Gr achieve efficiencies exceeding 99%, outperforming both their higher Gr counterparts and conventional PMSMs. The superior performance of PMVMs is attributed to lower current density and reduced copper loss, which contribute to their enhanced thermal performance. These details are elaborated on further in the paper. Consequently, these findings suggest that PMVMs with lower Gr are particularly well suited for high-power maritime propulsion applications, offering advantages in terms of compactness, efficiency (EF), cost-effectiveness, and thermal performance.

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Section: Introductionmentioning

confidence: 99%

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

Arish,

Kamper,

Wang

2024

WEVJ

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“…For example, in [14,15], the magnetization of a HTS bulk was modeled by using the ANSYS A-V-A formulation-based iterative algorithm method. In [16], a 3D HTS generator model was established in ANSYS, and the maxwell's equation and power-law equation are formulated in diversity of formulation namely A-V method. In [17], AC loss of HTS winding was calculated using the ANSYS combined with the resistivity-adaption algorithm.…”

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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“…Arish et al [ 21 ] used the HTS-Bulk YBaCuO (YBCO) and proposed a flux-switching machine and make a comparison with the classic model. The results of this axial flux permanent magnet machine provide a visible reduction in the leakage flux.…”

Section: Introductionmentioning

confidence: 99%

Design Development and Analysis of a Partially Superconducting Axial Flux Motor Using YBCO Bulks

et al. 2021

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In this work, authors have designed, constructed and tested a new kind of partially superconducting axial flux machine. This model is based on the magnetic flux concentration principle. The magnetic field creation part consists of the NbTi superconducting solenoid and two YBaCuO plates. A theoretical study is conducted of an extrapolated superconducting inductor for low-temperature superconducting and high-temperature superconducting solenoids. The optimization of the inductor is carried out in order to increase the torque and the power density as well. This improvement is done by changing the shape of the elements which form the superconducting inductor. Finally, a prototype is realized, and tested.

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Comparative study of a new structure of HTS-bulk axial flux-switching machine

Cited by 10 publications

References 22 publications

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

Design and Optimisation of a 5 MW Permanent Magnet Vernier Motor for Podded Ship Propulsion

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

Design Development and Analysis of a Partially Superconducting Axial Flux Motor Using YBCO Bulks

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