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The purpose of this paper is to analyze the pulsating torque in squirrel cage induction machines by studying the stator slot and rotor bar dimensions. To mitigate the pulsating torque produced by the non-sinusoidal spatial distribution of magnetomotive force (MMF) and permeance in the air-gap, design options are evaluated at various stator and rotor slot dimensions and operating conditions. Analytical...
This paper focuses on switching losses in hard switched converters. More specifically, on reverse conduction losses of MOSFET intrinsic body diodes as employed in BLDC motor drive inverter circuits. Synchronous rectification (SR) has been extensively implemented in low-voltage switch-mode dc/dc power conversion to reduce diode conduction losses. Extending the benefits of SR to high-voltage applications...
With the advancement of technology on wide bandgap materials such as silicon-carbide (SiC), there are now better choices of SiC power devices available than ever before. It is widely known that SiC-based switching devices provide significant performance improvements on many aspects including lower power dissipation, higher operating temperatures, and faster switching frequencies compared to conventional...
This paper presents a new graduate-level course that is designed, developed, and taught at the University of Wisconsin-Madison to further advance the education for wind power technologies. The objective of this course is to provide an in-depth coverage of control of electric drives for wind turbines with an emphasis using state-of-the-art modeling and simulation techniques. Various generator types...
The purpose of the paper is to review and compare the ac-dc electric power conversion topologies from the perspective of More Electric Aircraft (MEA) utilization. Advancements in power electronics encompass many evolving technologies including power semiconductor devices, microprocessors or digital signal processors (DSPs), thermal management, EMI and corona mitigation techniques, and mechanical packaging...
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