Study on convection heat transfer of end-winding for a 10kW external rotor PMSM with open end cap

Zhang, Xintong; Zhang, Chengming; Li, Liyi; Fu, Pengrui

doi:10.1109/tec.2022.3142125

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…The analysis methods of motor cooling systems are divided into two methods: the experimental method and the numerical simulation method [14][15][16]. Whether the motor cooling system is water-cooled, air-cooled or oil-cooled, the convective heat transfer area (CHTA), the average convective heat transfer coefficient (CHTC) and the convective thermal resistance (CTR) are the main standards for cooling performance [17][18][19][20]. Xintong Zhang et al [17] proposed the coupling method of computational fluid dynamics (CFD) and lumped parameter thermal network (LTPN) to calculate the CHTC of an air-cooling motor.…”

Section: Introductionmentioning

confidence: 99%

“…Whether the motor cooling system is water-cooled, air-cooled or oil-cooled, the convective heat transfer area (CHTA), the average convective heat transfer coefficient (CHTC) and the convective thermal resistance (CTR) are the main standards for cooling performance [17][18][19][20]. Xintong Zhang et al [17] proposed the coupling method of computational fluid dynamics (CFD) and lumped parameter thermal network (LTPN) to calculate the CHTC of an air-cooling motor. Peixin Liang et al [18] determined the cooling performance of the circumferential water jacket and axial water jacket by comparing the CHTC.…”

Section: Introductionmentioning

confidence: 99%

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Experiment and Simulation Study on the Cooling Performance of Oil-Cooling PMSM with Hairpin Winding

Yang,

Cai,

Xie

et al. 2024

Machines

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In this paper, the cooling performance of oil-cooling PMSM with hairpin winding under various oil parameters is analyzed via a simulation and an experiment. The effects of oil jet positions, oil temperatures, and oil flow rates on the cooling performance are analyzed. It is found that increasing the oil temperature in the range of 20 °C to 60 °C, increasing the flow rate of oil jets whose position angle is from 15° to 45°, and increasing the flow rate in the range of 1 L/min to 2 L/min will significantly improve the cooling performance. The apertures of the oil spray ring are optimized using the Taguchi algorithm. The cooling performance is the best when the flow ratio is m(0°):m(15°):m(30°):m(45°):m(60°):m(75°) = 4%:19%:10%:10%:4%:4%. This study provides a guide for the design of the oil-cooling system for the hairpin winding of the PMSM.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experiment and Simulation Study on the Cooling Performance of Oil-Cooling PMSM with Hairpin Winding

Yang,

Cai,

Xie

et al. 2024

Machines

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show abstract

“…Normally, computational fluid dynamics (CFD) is used for calculating the temperature distribution of the motor [13,14]. As for the WOP-cooled LHDPMSM with large volume and complex winding end cooling structure, CFD not only takes a long time to calculation, but also requires a very high hardware configuration of the computer [15,16].…”

Section: Introductionmentioning

confidence: 99%

Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM

Song,

Zhang,

Jin

et al. 2023

IET Electric Power Appl

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Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss and high winding temperature rise of the LHDPMSM, an effective winding cooling enhancement technology based on winding overall potting (WOP) is presented. The manufacturing process and cooling principle of WOP is described in detail and compared with the traditional vacuum pressure impregnation (VPI). In order to solve the problem of complex modelling process and long calculation time of LHDPMSM thermal field caused by large volume and asymmetric fluid cooling structure, the lumped parameter thermal network (LPTN) considering both fluid cooling and winding potting is proposed. Then, the cooling capacity of WOP and VPI are compared by LPTN, and the influence of some major cooling system parameters on LHDPMSM temperature rise are also researched. Finally, in order to verify the correctness of the theoretical calculation results, two 450 kW LHDPMSM prototypes adopt WOP and VPI are manufactured, tested and compared. The theoretical and experimental results are highly consistent, which proves the effectiveness of WOP in winding cooling enhancement of LHDPMSM.

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Improvement Design of Outer-Rotor PMSM with Additive Manufactured Heat Exchanger

Wang,

Huang,

Liu

2023

2023 26th International Conference on Electrical Machines and Systems (ICEMS)

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Study on convection heat transfer of end-winding for a 10kW external rotor PMSM with open end cap

Cited by 5 publications

References 28 publications

Experiment and Simulation Study on the Cooling Performance of Oil-Cooling PMSM with Hairpin Winding

Experiment and Simulation Study on the Cooling Performance of Oil-Cooling PMSM with Hairpin Winding

Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM

Improvement Design of Outer-Rotor PMSM with Additive Manufactured Heat Exchanger

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