Losses calculation of IGBT module and heat dissipation system design of inverters

A loss calculation method about IGBT module in engineering is introduced,and the results are compared with the other which the manufacturer calculate by IPOSIM.The precision meets the design requirements.After calculated the losses of IGBT module,it can get the thermal resistance by the thermal resistance equivalent circuit of the heat dissipation system.And the system for the inverter using forced-air-cool is designed.Finally,the design of the heatsink is simulated by software ICEPAK.The simulation results show the heatsink is up to the demands.