摘要
计算逆变器IGBT损耗及水冷系统的方法在实现过程中,综合考虑了门极驱动电阻、直流母线电压、温度和结温对IGBT损耗的影响,给出了SVPWM调制算法下逆变器IGBT及Diode的导通损耗、开关损耗、总损耗、温差及结温的计算方法,考虑到IGBT损耗与结温相互影响的特点,利用自定义热路模型,提出以环境温度为初始条件的循环迭代算法,最后给出了IGBT结温、壳温及散热器温度曲线。在此基础上,设计了一款中压变频调速系统用水冷散热系统,与实验值比较,两者吻合很好,肯定了解析法的精度,表明了该方法的正确性与可行性。
In the implementation process of calculating the inverter IGBT loss and water cooling system, the effect of gate drive resistor, DC bus voltage, temperature and junction temperature on the IGBT loss is taken into comprehensive consideration for the first time. The^method to calculate inverter IGBT and Diode conduction loss, switching loss, the total loss, efficiency, temperature difference and junction temperature is given under the SVPWM modulation algorithm. Taking the interaction characteristics of the IGBT loss and junction temperature into account, the interaction of the loop algorithm is presented on the initial condition of the ambient temperature using the custom thermal circuit model. The IGBT junction temperature, case temperature and the radiator temperature curve is given finally. On this basis, a medium voltage variable frequency speed control system with water cooling system is designed. Experimental results, affirm the accuracy of the analytical method and verifed the correctness and feasibility of the method.
出处
《电工技术学报》
EI
CSCD
北大核心
2013年第8期97-106,共10页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51277122)
教育部博士点基金(20122102130001)
教育部创新团队(IRT1072)
辽宁省教育厅创新团队项目(2207T123)资助项目
关键词
解析法
IGBT损耗
水冷
散热器
Analytical method, IGBT, loss, water cooling, radiator
