Design of Heat Dissipation for Temporary Overload of High Power Density Motor Based on Neutralization of High and Low Temperature

本文针对高功率密度电机过载运行过程中产热较高的问题，创新性的提出一种基于冷热中和的方式，解决电机短时过载中产生的热量，保证电机短时内能够稳定运行，降低其由于温升导致的电机失效问题，通过原理样机的试验及数据分析，验证该方式能够有效降低电机绕组端部温度。 Aiming at the problem of high heat generation in the overload operation of high power density mo-tor, this paper innovatively proposes a method based on neutralization of high and low temperature to solve the heat generated in the short-term overload of motor, ensuring the stable operation of motor in a short time and reducing the motor failure caused by temperature rise. According to the test and data analysis of principle prototype, it is verified that this method can effectively reduce the temperature of the end of motor winding.