根据电动飞机的飞行剖面,建立了电机控制器的系统损耗及IGBT模块的热阻网络模型,对电机控制器IGBT模块的温度进行计算。以轻量小型化为目标,对电机控制器的散热结构进行了改进。MATLAB/Simulink系统仿真试验和地面台架样机试验结果表明:改进的风冷散热器能够满足电动飞机电机控制器的散热需求,且重量降低5%。

According to the flight profile of the electric aircraft, the system loss of the motor controller was studied, the thermal resistance network model of the IGBT module was established, and the temperature of the IGBT module of the motor controller was calculated. On the premise of meeting the allowable temperature of motor controller, the cooling structure of IGBT module was improved. The results of MATLAB/Simulink simulation and ground bench test showed that the improved aircooled radiator could meet the cooling requirements of electric aircraft motor controller, and the weight of the aircooled radiator was reduced by 5%.

TM 301.2

辽宁省教育厅科学技术研究项目(LZGD2017041)