Design of 15 kW, 440 V Three Phase Induction Motor for Electrical Vehicle Applications with Improved Efficiency and Wide Speed Range

Avusula, Vikranth; Khamari, Sephali Shradha; Rani, G. Sandhya; Behera, Ranjan Kumar

doi:10.1109/icpee54198.2023.10059829

Cited by 2 publications

(1 citation statement)

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“…Desired characteristics of current motors suitable for electric vehicles include high efficiency, wide speed range, high starting torque, and wide constant power range power factor. These properties are highly dependent on the motor's core length, rotor and stator slots, and air gap [83]. In addition, the high-speed motor for the Mars Exploration Rover requires a supply voltage of 40 V, an output power of 50 W, and a weight of 25 g, which means high efficiency and high-power density [84], which can be used in outer space to minimize core losses and reduce the heat generated by the motor.…”

Section: Future Development Of High-speed Motor Coolingmentioning

confidence: 99%

Research Progress of Enhanced Thermal Evacuation and Cooling Technology for High-Speed Motors

Yan,

Qiang,

Zhao

et al. 2024

Applied Sciences

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In high-speed motors, there is a huge amount of heat generation from core and winding losses, which may result in thermal failures or motor performance deterioration. In the prevention of heat accumulation, efficient cooling technology is critical for smooth and reliable motor movement. This paper summarizes the diverse application of high-speed motor and thermal requirements, such as in electrical devices, turbo-machinery, and high-precision machine tools. Three paths of case convection—cooling, internal ventilation cooling and spindle core cooling—are analyzed. Methods for configuring thermal resistance and improving cooling efficiency are summarized. Among them, coolant flow characteristics and flow channel shapes, gas supply ventilation systems, and methods to reduce air resistance, as well as axial cooling and integrated heat pipe structures, are extensively investigated. Finally, the development prospects of high-speed motor cooling are also forecasted. At present, the primary research directions are to reduce the heat generated by the heat source, utilize the latent heat of the coolant, optimize the cooling flow path of the shell, design an axial air-cooling circulation system, and enhance the heat dissipation of the spindle.

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Section: Future Development Of High-speed Motor Coolingmentioning

confidence: 99%