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The purpose of this paper is to study the design opportunities in high-speed toothless toroidal winding surface permanent magnet machine enabled by the implementation of silicon carbide-based power electronic inverters. High-speed machines designed with toothless toroidal winding configuration are beneficial to eliminating the cogging torque due to the absence of stator teeth, but the airgap flux...
Three-phase common mode (CM) inductors are widely used in electric motor drives as a means to limit ground current, shaft voltage, and electromagnetic interference emission. As the switching frequency of power converters keeps increasing with the help of high performance switching devices such as SiC MOSFETs, the role of CM inductors are becoming increasingly important. This paper presents a comprehensive...
The purpose of this paper is to investigate high-speed machine design enabled through the use of silicon-carbide based power electronic inverters. Silicon carbide based switching devices have superior properties compared to silicon based devices, and they are able to change the paradigm for high-speed machine design. High-speed machines with a higher number of poles are shown to reduce the machine...
With low loss, fast switching speed, and high temperature capabilities, silicon carbide (SiC) based devices are beneficial to the automotive power converters in terms of efficiency increase and size reduction. Nevertheless, as a result of fast switching transitions and low on-state resistance of SiC devices, they are prone to overshoots and oscillations on switching waveforms, with the presence of...
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