Thermal Networks Generation and Application in IGBT Module Packaging

The Analysis of Numerical Simulation About Thermal Management on Frequency Converter

“…For our application, two goals are expected to achieve: (1) to keep T 2 at a controllable value so that the acceptable cooling effect is achieved for frequency convertor; (2) to improve the proportion of Q 2 for Q 1 . Equation (6) indicates that there are many factors which affect the temperature of the cooling water T 2 , it must meet the operating temperature requirements of key components of frequency converter such as IGBTs, and the T 2 can be limited to some acceptable range by adjusting C, m 1 , t, A, and so on. Later we will establish a system of thermal resistance equivalent model to analyze the influences of them.…”

“…Shanbin Wang introduced the heat loss calculation method of IGBT, and analyzed the influence of different modulation methods on the heat loss of IGBT through comparison experiments [5]. The thermal network is often used for thermal management analysis of power electronic equipment, Daohui Li introduced the generation principle of thermal network and its application to monitor the junction temperature of power devices, and realized co-simulation of thermoelectricity [6]. The numerical simulation method is usually used to simulate and analyze the high-power device, and the simulation model can be built to simulate and analyze the temperature and the mechanical stress of whole IGBT module, it can help to understand the working state of IGBT more intuitively, and it provides a theoretical basis for the design of the cooling system [7]- [9].…”