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Abstract
The reliable operation of IGBT (insulated gate bipolar transistor) is the key to the performance of motor control system, which directly affects the performance of the vehicle. By contacting with the surface of the radiator, the heat device rapidly transfers heat to the fin, which is then absorbed by the high-speed airflow between the fins and taken away to form a cooling channel to ensure that the heat device is always at an appropriate temperature during work. The power loss of IGBT under rated working conditions was estimated theoretically. The temperature field of the radiator under typical working conditions was simulated by ICEPAK, and the radiator was parameterized. The simulation results show that under the condition of forced cooling and heat dissipation, the optimized radiator meets the heat dissipation requirements of the motor controller.
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