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The power electronic rectifying stage (DC to AC) in a variable speed generator compromises the generator efficiency and its lifetime. However, this effect in a PMSG might need to be quantified in a design stage for energy output yield calculations. We have conducted an in-depth efficiency analysis of a 20kW direct drive PMSG by the implementation of an equivalent circuit aided by a 2D-Finite Element...
This paper presents a promising technique for estimating the cores losses of a fractional-slot concentrated-winding (FSCW) interior permanent magnet (IPM) machine using a simplified lumped-parameter magnetic circuit model (MCM). This model incorporates several key nonlinear phenomena including (i) magnetic saturation; (ii) cross-saturation effects between the d- and q-axes affecting both flux linkages...
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