![]() A first challenge is to mount the power converter in a small space inside the machine in a mechanically stable way as it is exposed to the motor vibration. Many challenges have to be met in the design of integrated motor drives. Furthermore, the elimination of the cables reduces the electromagnetic interference (EMI) of the drive which means that the EMI filter can be eliminated or reduced in size, and once again this improves the power density and the efficiency of the drive. The result of this physical integration is a great reduction of the volume, the weight and the power losses of the electric motor drive, which improves its power density and efficiency. The cables connecting the power converter and the electric machine can be completely eliminated or greatly reduced in length. The physical integration brings the electric machine and the power converter into close proximity so that they can share the same cooling circuit and enclosure. IMMDs incorporate physical integration and modularization of the electric machine and the power converter. In the context of increasing the power density and efficiency of electric motor drives, integrated modular motor drives (IMMDs) emerge as a solution to obtain both benefits. ![]() High power density and efficiency are fundamental requirements in many applications such as electric vehicles (EVs), hybrid electric vehicles (HEVs), and propulsion and aerospace applications.
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