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Thermal Analysis of IGBT Module of Motor Controller

By means of the thermal analysis of IGBT module (the main heat source of a new type of cooling electric machine controller), the temperature risings are tested in order to determine if the heat radiation structures are reasonable. At first, three-dimensional model of the electric machine controller’s IGBT cooling systems is created, then the mesh is divided and the boundary conditions are defined. The results solved by the Fluent software can be analyzed and indicate the cooling system meeting the actual job requirements. Meanwhile, there are still some rooms for improvement of the structures of the cooling system.