摘要
绝缘栅双极型晶体管(IGBT)模块的工作性能和可靠性以及逆变器中IGBT模块散热系统的设计等均与其工作结温直接相关,掌握器件的结温状况对于确保其安全可靠的使用和冷却装置的合理选择具有重要意义。推导获得基于数学方法的IGBT模块损耗模型和实现热电模拟的Foster热网络模型,基于此在MATLAB/Simulink中建立了简单实用的三相逆变器中IGBT模块结温仿真评估模型,同半导体器件制造商软件计算方法相比,加入了热电耦合因素,可以更真实地模拟器件芯片结温状况,并分析了不同负载工况下IGBT模块结温的变化趋势,所得结论可以为逆变器中IGBT模块的结温控制方法服务。
Insulated gate bipolar transistor （IGBT）power module operating performance and reliability and its design of heat dissipation system in inverter are directly related to its operation junction temperature. Investigation of temperature of power device j unction is significant to ensure its safe operation and choose cooling apparatus rationally.A loss model based on mathematical methods and Foster thermal network model are derived to achieve thermo-electronic analogy.Then,a practical junction temperature simulation model of IGBT module for the three-phase inverter is established in MATLAB/Simulink.The simulation result is more accurate than device manufacture software which doesn’t consider electro-thermal couple. Under different load conditions,the trend of IGBT module temperature change can be used to control junction temperature variation.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第2期37-45,共9页
Journal of Chongqing University
基金
科技部国际合作项目(2010DFA72250)
国家自然科学基金资助项目(51077137)
国家自然科学基金重点项目(51137006)
输配电装备及系统安全与新技术国家重点实验室重点项目资助(2007DA10512711101)
中央高校基本科研业务费资助(CDJZR11150013)
关键词
绝缘栅双极型晶体管
三相逆变器
损耗
热网络
热电耦合
结温仿真
IGBT
three-phase inverter
losses
Foster thermal network
electro-thermal couple
j unction temperature simulation
