Abstract
With the increased necessity of a high power density and efficient system in aerospace and marine industries, integrated motor drives provide an excellent solution in the modern era. Therefore, a close structural and functional integration of passive components has become a prerequisite task to make a compact overall system. This article reviews the existing motor drives system with integrated passive technologies. To start, the design aspect of the traditional and integrated filter inductors, using the area product approach, is discussed. Subsequently, layouts of traditional and integrated inductors are presented. The available capacitor technologies, suitable for integration, are also discussed with pros and cons of each capacitor type.
Highlights
Integrated motor drives with integrated passives are becoming more prevalent as the logical future in the industry of power electronics and motor drives, in cases where weight and space are the major concern, such as aerospace, marine, and automotive application
Lis theinmutual density is limited by thermal class of the wire insulation, whereas magnetic flux density ring to Equation (3), it is clearly seen that the area product does not depend on the frein theof core limited by the material saturation
In publications [40,41], the inductors are machined from a Cu bulk to create the desired winding shape where one comparative study of thermal distribution was carried out for two cases: (1) when a solid solenoid is used and only the first and the last turns are bonded to the copper traces of the direct bonded copper (DBC) whereas, the rest of the inductor is laid on the substrate, (2) when individual U-shapes are bonded onto the substrate
Summary
Integrated motor drives with integrated passives are becoming more prevalent as the logical future in the industry of power electronics and motor drives, in cases where weight and space are the major concern, such as aerospace, marine, and automotive application. These components contribute a significant portion of converter’s weight and volume, which is larger than 50% [1,2]. Filters are designed and introduced after the drive system components have been defined, which results in a discrete subsystem These integrated motor drives have been a focus of research in the power electronics industry and have proven to be successful [3,4]. The available capacitor technologies suitable for integrated filters are presented with the benefits and drawbacks of each capacitor type
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