Howe, "Eddy-current loss in the rotor magnets of permanent-magnet brushless machines having a fractional number of slots per pole," IEEE Transactions on Magnetics, vol.
Liu, "Estimation of eddy-current loss in permanent magnets of electric motors using network-field coupled multislice time-stepping finite-element method," IEEE Transactions on Magnetics, vol.
(5), eddy-current loss
of unit mass is expressed as Eq.
The model in  can well modify the eddy-current loss
in the silicon substrate, while the T-model in  has been proposed to accurately simulate the broadband characteristics of spiral inductors.
Sullivan, "Simplified high-accuracy calculation of eddy-current loss
in round-wire windings," Power Electronics Specialists Conference, 873-879, Aachen, Germany, 2004.
In   the flux density waveforms are estimated in stator tooth and yoke, and some analytical expressions are derived to calculate hysteresis loss and eddy-current loss
. However, these approaches are usually used in the design procedure of PM machines where iron losses should be calculated many times while executing the design algorithms.
Iron loss consists of the hysteresis loss and eddy-current loss
. It can be estimated using 
Mizokami, "Reduction of magnet eddy-current loss
in interior permanent-magnet motors with concentrated windings," IEEE Transactions on Industry Applications, Vol.
Interdependence of hysteresis and eddy-current losses
in laminated magnetic cores of electrical machines.
Hameyer, "Computation of iron and eddy-current losses
in IPM motors depending on the field weakening angle and current waveform", in XIV Int.
The eddy-current losses
are produced by circulation of parasitic eddy currents through iron and are dictated by changes in flux density over time.
The magnet eddy-current losses
are neglected in the analysis but as the Halbach magnets are highly segmented, these losses will be relatively low .