Magnetic-Thermal Coupled Analysis of Eletromagnets for Medium-speed Maglev Train

Zhang, Jiuding; Lu, Qinfen

doi:10.1109/icems.2019.8921696

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Yang (2016) in an unpublished paper, elaborates on a thermal analysis of a DC electromagnet cooled by high thermal conductivity discs. Zhang and Lu (2019) presented a Thermal modeling magnetic-thermal coupled analysis of electromagnets for the medium-speed maglev train. They analyzed the thrust force and levitation force based on a two-dimensional (2D) finite element model of one full levitation module.…”

Section: Introductionmentioning

confidence: 99%

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

Hashemi

Qaraei

Shabanian

2023

COMPEL

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Purpose An excessive increase in temperature will reduce the lifespan and even burn the coil. The variety of materials in the structure of the electromagnet along with its multi-layer winding creates a complex and heterogeneous thermal structure. There are very few researches that are completely focused on the thermal analysis of electromagnets. The purpose of this paper is to provide an accurate, yet fast and simple method for the thermal analysis of cylindrical electromagnets in both transient and steady-state modes. For this purpose, a thermal equivalent circuit (TEC) is presented based on the nodding approach. Design/methodology/approach The results of TEC analysis of cylindrical electromagnet, for two orthogonal and orthocyclic winding coil technologies, were compared with the results of the thermal simulation in COMSOL. The authors also built a laboratory model of the cylindrical electromagnet, similar to those analyzed and simulated, and measured the temperature in different parts of it. Findings The comparison of the results obtained from different methods for the thermal analysis of the cylindrical electromagnet indicates that the proposed TEC has an error of less than 2%. The simplicity and high accuracy of the results are the most important advantages of the proposed TEC. Originality/value Comparing the information and results related to winding schemes, indicates that the orthogonal winding has less cost and weight due to the shorter length of the wire used. On the other hand, orthocyclic winding generates lower temperature and has more lifting force, and is simpler to implement. Therefore, in practice, orthocyclic winding technology is usually used.

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Section: Introductionmentioning

confidence: 99%

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

Hashemi

Qaraei

Shabanian

2023

COMPEL

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“…Wang et al [9] provided a relatively accurate derivation of the relative magnetic permeability function in the air gap, considering the Dirichlet law and winding characteristics. Liu et al [10] examined the influence of stator segmentation patterns on the air gap magnetic permeability function, while Zhang and Lu [11] designed a skewed tooth scheme to reduce thrust fluctuation caused by stator cogging effects, optimizing parameters through simulation. https://doi.org/10.56578/mits020301 However, most LSM cogging effect studies have concentrated on the analysis of stator cogging effects, with less attention paid to the impact generated by the vehicle's magnetic poles.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis and Electromagnetic Field Optimization of Linear Synchronous Motor in High-Speed Maglev Systems

Yang,

Sun,

et al. 2023

MITS

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Electromagnetic characteristic analysis and design of a linear motor used for ultra-high-speed EMS maglev train

Gao,

Shi,

Gao

et al. 2024

Sci. China Technol. Sci.

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Magnetic-Thermal Coupled Analysis of Eletromagnets for Medium-speed Maglev Train

Cited by 5 publications

References 9 publications

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

Finite Element Analysis and Electromagnetic Field Optimization of Linear Synchronous Motor in High-Speed Maglev Systems

Electromagnetic characteristic analysis and design of a linear motor used for ultra-high-speed EMS maglev train

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