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This paper deals with a core loss calculation of high-speed permanent magnet (PM) machine according to driving method, namely, sine wave and square wave drive from curve fitting method using modified Steinmetz equation considering anomalous loss. For an accurate calculation, magnetic field analyses in stator core considering the time harmonics are performed. In addition, using the nonlinear finite...
This paper deals with the thrust calculations and the measurements of a cylindrical linear oscillatory actuator (LOA) using transfer relations theorem (TRT), namely, Melcher's methodology. Using transfer relations derived in terms of a magnetic vector potential and a two- dimensional (2-D) cylindrical coordinate system, this paper derives analytical solutions for the magnetic vector potential, magnetic...
This paper deals with design criteria and characteristics analysis included electromagnetic losses analysis of a high-speed permanent magnet synchronous motor for a 7.5-kW, 60-krpm class centrifugal air compressor. In order to design this machine, we introduced analytical techniques, such as the electromagnetic transfer relations theorem and equivalent magnetic circuit method. And, from the curve-fitting...
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