Optimization of motor heat dissipation systems based on three dimensional flow field analysis

Li, Tong; Fang, Youtong; Ma, Jien; Liang, Sizhuang; Shi, Chao

doi:10.1109/icems.2015.7385324

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Currently, most CFD software has integrated the thermal solver and realizes the fluid-solid coupling technique to solve the temperature field of motor. In which the CHTC is not as a uniform value, but a data field to be submitted to the thermal calculation, the interaction between fluid temperature and motor temperature is also considered [23]- [25].…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Experimental Validation of a 30 kW 60000 r/min High-Speed Permanent Magnet Motor With Magnetic Bearings

Dong¹,

Wang²,

Han³

et al. 2019

IEEE Access

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Thermal analysis calculation is an indispensable checking process in the design of the high-speed permanent magnet synchronous machine (HSPMSM) with the active magnetic bearings, due to its high loss density and non-contact support mode. The finite element method (FEM) is applied for visual global temperature distribution. Because the thermal analysis is a complex problem reflected the interaction among the electromagnetic field, temperature field, and fluid field, so it cannot be solved independently, and a multi-physical field simulation based on magneto-thermal-fluid coupled iterative solution is proposed. An electromagnetism (EM) model is established to solve electromagnetic loss and the computational fluid dynamics (CFD) software is used to simulate convective condition, both the results are applied to the thermal analysis of motor. The data interaction is bidirectional and transfers in the form of a field, and the interaction during the EM model, the CFD model, and thermal analysis is fully considered to guarantee high accuracy. Finally, two prototypes of 30-kW 60000 r/min magnetically suspended HSPMSMs have been developed. The experimental results of back-to-back towing test validate the accuracy of the proposed multi-physical field simulation.INDEX TERMS Back-to-back motor towing experiment, cooling design, electromagnetic-thermal-fluid coupling analysis, high-speed permanent magnet motor, magnetic bearings, multi-physics analysis, thermal analysis.

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Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Experimental Validation of a 30 kW 60000 r/min High-Speed Permanent Magnet Motor With Magnetic Bearings

Dong¹,

Wang²,

Han³

et al. 2019

IEEE Access

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show abstract

“…Jeng [3] attempted to dissipate the heat of the motor using a finned heat sink and a motor fan, and achieved about 28% higher heat dissipation than the previous model. Li et al [4] improved the heat dissipation structure for effective heat management, and optimized the ventilation channel size to obtain high heat dissipation effect. In addition to modifying the structural characteristics, it is possible to obtain a heat dissipation effect by removing the air layer that serves as an insulator by filling the air layer inside the motor with insulating oil [5].…”

Section: Introductionmentioning

confidence: 99%

Thermal-Flow Characteristics of Ferrofluids in a Rotating Eccentric Cylinder under External Magnetic Force

2018

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Heat dissipation has become an important issue due to the miniaturization of various electronic devices. Various methods such as spray and nozzle coolers, heat sinks and so on are used for heat dissipation. However, the emergence of ferrofluids drastically improves the operating characteristics of electromagnetic systems and devices. A ferrofluid is a suspension containing 10-nm magnetic particles in a colloidal solution. This material exhibits paramagnetic behavior and is sensitive to magnetic field and temperature. In this study, heat transfer characteristics of ferrofluids in a rotating eccentric cylinder were investigated using the commercial code, COMSOL Multiphysics. Numerical results of the local Nusselt number, magnetophoretic force and velocity distributions were obtained from various eccentricities of the cylinder, and the results were graphically depicted with various flow conditions.

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Influences of 3D fluid field for submersible permanent magnet motors on thermal field distribution

Zhao

Ran

Shang

2019

2019 22nd International Conference on Electrical Machines and Systems (ICEMS)

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Optimization of motor heat dissipation systems based on three dimensional flow field analysis

Cited by 4 publications

References 9 publications

Thermal Analysis and Experimental Validation of a 30 kW 60000 r/min High-Speed Permanent Magnet Motor With Magnetic Bearings

Thermal Analysis and Experimental Validation of a 30 kW 60000 r/min High-Speed Permanent Magnet Motor With Magnetic Bearings

Thermal-Flow Characteristics of Ferrofluids in a Rotating Eccentric Cylinder under External Magnetic Force

Influences of 3D fluid field for submersible permanent magnet motors on thermal field distribution

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