Numerical simulation of heat dissipation of surface mounted permanent magnet synchronous hub motor

Leng, Shuai; Jin, Liqiang

doi:10.2298/tsci2106059l

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…In [20], a simulation was carried out to study the temperature rise of a 40kW PMSM under its rated operating conditions. In [21], pole shoes were installed on the surface of the permanent magnet of a permanent attraction synchronous motor. By minimizing the stator iron loss and permanent magnet eddy current loss, the motor temperature is effectively reduced.…”

Section: Introductionmentioning

confidence: 99%

Design and temperature field analysis of conical outer rotor hub motor

Wang,

Zhou,

et al. 2024

IEICE Electron. Express

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To make the motor perform better during operation, a conical outer rotor structure is proposed based on the traditional outer rotor permanent magnet vernier motor (PMVM) structure. The electromagnetic characteristics of PMVM and COR-PMVM are compared and analyzed. The parameters of COR-PMVM are optimized, and the motor's temperature rise is simulated and analyzed by magneto-thermal coupling. Simulation results demonstrate a 39.3% increase in electromagnetic torque of the engine, and a 33.3% reduction in torque ripple. The stator and winding can reach a temperature of 101.72 °C, whereas the rotor and permanent magnet remain cooler at 70 °C. Lastly, a temperature rise experiment is conducted on the permanent magnet motor to validate the precision of the magnetothermal coupling analysis method.

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Section: Introductionmentioning

confidence: 99%

Design and temperature field analysis of conical outer rotor hub motor

Wang,

Zhou,

et al. 2024

IEICE Electron. Express

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“…The motor housing, as one of the most critical components in new energy vehicles, requires excellent mechanical performance and intricate thin-wall structures to meet the needs of protecting the motor and ensuring efficient heat dissipation for the motor [1]. Aluminum alloys have received widespread attention in the aerospace and vehicle weight reduction fields due to their low density and excellent corrosion resistance properties [2].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Lost-Foam Casting for Key Components of A356 Aluminum Alloy in New Energy Vehicles

Sun,

Cao,

Jin

et al. 2024

Materials

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The intricate geometry and thin walls of the motor housing in new energy vehicles render it susceptible to casting defects during conventional casting processes. However, the lost-foam casting process holds a unique advantage in eliminating casting defects and ensuring the strength and air-tightness of thin-walled castings. In this paper, the lost-foam casting process of thin-walled A356 alloy motor housing was simulated using ProCAST software (2016.0). The results indicate that the filling process is stable and exhibits characteristics of diffusive filling. Solidification occurs gradually from thin to thick. Defect positions are accurately predicted. Through analysis of the defect volume range, the optimal process parameter combination is determined to be a pouring temperature of 700 °C, an interfacial heat transfer coefficient of 50, and a sand thermal conductivity coefficient of 0.5. Microscopic analysis of the motor housing fabricated using the process optimized through numerical simulations reveals the absence of defects such as shrinkage at critical locations.

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Flow and heat transfer characteristics of high-pressure natural gas in the air gap of high-speed motor

Zhao,

Yuan

2024

THERM SCI

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High-speed motors are widely used in industrial applications owing to their unique features, such as compact framework, high performance, and high reliability. Based on the finite volume method and numerical heat transfer theory, this study establishes a stator-air gap-rotor model, and the flow and heat transfer in the air gap between the stator and rotor in a high-speed motor are investigated with high-pressure natural gas as the cooling medium. Meanwhile, the ?radial tri-vortex partition, alternating axial distribution? feature of the turbulent Taylor-Couette vortex in the air gap of the motor is determined. Then, the optimal structural parameters which can realize the heat transfer enhancement of motor air gap are obtained. Finally, an optical fiber grating temperature measurement system based on the wavelength division multiplexing technology is utilized to attain the temperature distributions on the stator and rotor surfaces. The simulation results are compared with the experimental data to evaluate the simulation method?s precision.

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Numerical simulation of heat dissipation of surface mounted permanent magnet synchronous hub motor

Cited by 3 publications

References 16 publications

Design and temperature field analysis of conical outer rotor hub motor

Design and temperature field analysis of conical outer rotor hub motor

Numerical Simulation of Lost-Foam Casting for Key Components of A356 Aluminum Alloy in New Energy Vehicles

Flow and heat transfer characteristics of high-pressure natural gas in the air gap of high-speed motor

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