An innovative natural air-cooling system technique for temperature-rise suppression on the permanent magnet synchronous machines

Asef, Pedram; Perpiñá, Ramón Bargalló; Barzegaran, M. R.

doi:10.1016/j.epsr.2017.07.031

Cited by 21 publications

(7 citation statements)

References 28 publications

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“…It was found that with optimizing the structure of the diffuser profile, the increased air flow rate reduced the air temperature rise and thus lowered the temperature of the motor. Besides, Sun et al [135] and Asef et al [136] also indicted that the cooling of motors could be better with the existence of extra cooling ducts in the stator and the teeth, at the cost of increasing iron loss to some extent. To summarize, external natural air cooling can be improved by optimizing the fin structures.…”

Section: (B)mentioning

confidence: 99%

A critical review on thermal management technologies for motors in electric cars

Wang

Bai

Gerada

et al. 2022

Applied Thermal Engineering

123

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Section: (B)mentioning

confidence: 99%

A critical review on thermal management technologies for motors in electric cars

Wang

Bai

Gerada

et al. 2022

Applied Thermal Engineering

123

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“…Radial and circumferential ducts for the airflow are arranged for the heat dissipation from the stator core of the PMSMs. 73 The higher temperature is observed and measured in the stator core of the permanent magnet synchronous motor. Radial ducts are provided along the radial lines of the stator core and perpendicular to the rotor shaft (see Figure 7).…”

Section: Thermal Mapping and Analysismentioning

confidence: 96%

“…And stator laminations, rotor, windings, stator housing are cooled using the forced air-cooling method. 14 Segmenting the stator core in the axial 73 direction in a high-speed PMSM is investigated for effecting forced air-cooling in the gap between the core segments by extra end effect. 3-D transient FEA model is used to predict the end effect of the stator core segmentation.…”

Section: Thermal Mapping and Analysismentioning

confidence: 99%

Review of air-cooling strategies, combinations and thermal analysis (experimental and analytical) of a permanent magnet synchronous motor

Gundabattini

Mystkowski

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper gives a brief review of advanced cooling methods and applications to the permanent magnet synchronous motors (PMSMs), as well as investigates the cooling systems design problem for PMSM systems. Heat sources and losses together with analytical and practical analyses are described. Next, the temperature distribution and its influence on the PMSM is investigated using simulation results. The main part of the paper includes a review of the proposed cooling methods that will release the requirement of heat transfer of the PMSM. The finite element methods (FEM) are applied using the AnSys CFD software to obtain high accuracy thermal model of the PMSM system. The new developed forced air-cooling methods are given in details, which enable to effectively redistribute the temperature and heat transfer increasing the efficiency of the PMSM machine. Examples of CFD simulation are outlined to illustrate the effectiveness and benefits of the strategies developed.

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“…Researchers across the globe designed and analyzed a popular aircooling system wherein the fan is fitted externally at the end of the shaft. Normal rotor, winding and PM temperatures were reported to be substantially reduced by air convection and the effect of the airflow path on the motor temperatures [71][72][73][74]. The external fan can, however, raise the electric motor volume and decrease the power density, and this was not acceptable to fully sealed motors [63].…”

Section: Air-coolingmentioning

confidence: 99%

Thermal Mapping of a High-Speed Electric Motor Used for Traction Applications and Analysis of Various Cooling Methods—A Review

et al. 2021

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This paper gives a comprehensive review of advanced cooling schemes and their applications to the permanent magnet synchronous motors (PMSMs), as well as investigating the electrical motor’s topologies its thermal design issues, materials and performances. Particularly, the electromagnetic and electric performances, machine sizing, together with the structural design, are given. In addition, the work addresses the motor’s material design and properties along with its insulation performance, which is the main goal of optimization. Mainly, thermal mapping with analysis is provided according to the different cooling methods, including air-cooling, water-cooling, oil-cooling, heat-pipe-cooling, potting silicon gelatin cooling, and as well as cooling strategies for tubes and microchannels. The most common special features and demands of the PMSMs are described in the appearance of the motor’s failures caused by uncontrolled temperature rise. In addition, heat sources and energy losses, including copper loss, core loss versus motor speed, and output power, are analyzed. The review of the proposed cooling methods that will achieve the required heat transfer of the PMSM is presented with numerical simulations and measurements data. A review of numerical methods and results, including the finite element methods (FEM), such as the Ansys CFD software, to obtain a high-accuracy thermal mapping model of the PMSM system is given. The revived methods and design requirements due to PMSM temperature profile and cooling flow at different rotor speeds and torque loads are investigated. Finally, the motor design recommendations, including the newly developed cooling solutions, which enable it to effectively redistribute the temperature and heat transfer, increasing the efficiency of the PMSM machine, are laid out.

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An innovative natural air-cooling system technique for temperature-rise suppression on the permanent magnet synchronous machines

Abstract: Peer ReviewedPostprint (author's final draft

Cited by 21 publications

References 28 publications

A critical review on thermal management technologies for motors in electric cars

A critical review on thermal management technologies for motors in electric cars

Review of air-cooling strategies, combinations and thermal analysis (experimental and analytical) of a permanent magnet synchronous motor

Thermal Mapping of a High-Speed Electric Motor Used for Traction Applications and Analysis of Various Cooling Methods—A Review

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