Improving Loss Properties of the Mayergoyz Vector Hysteresis Model

Finite Element Simulation by Free Software Tools

“…The schematic view of the problem can be seen in fig. 3, which is a lamination placed into a magnetic field defined by the time varying of one single frequency [23,24]. The thickness d of the lamination is much smaller than the other two dimensions, i.e.…”

“…The following Maxwell's equations must be solved to simulate the lamination core taking eddy currents into account [23,24]:…”

“…The last term is responsible for the anomalous or excess losses [23,24,28]. The advantages and convergence properties of the fixed point technique can be hold by introducing the excess field term in the Maxwell's equations as follows [24]: , , , i.e.…”

Segregation of Iron Losses From Rotational Field Measurements and Application to Electrical Machine

“…The main conclusion was that in machines with air gaps, i.e., rotating machines the inclusion of iron losses in the computation has very little effect on both the operation quantities and the computed iron losses, provided the loss model is accurate. It is also obvious from the literature that magnetodynamic vector hysteresis models such as the one presented in [1] and [7] can predict iron losses with higher accuracy than the analytical equations and also enables the separation of its different components. However, the identification of hysteresis models and their use in FE computations is very laborious and requires both extensive measurements for different materials before hands and prohibitive computation times during the design process.…”

An efficient vector Preisach hysteresis model based on a novel rotational operator

“…Thus, many publications deal with the Mayergoyz vector hysteresis model. [1][2][3][4] Another approach is the StonerWohlfarth model. It has been combined by Kahler with the Preisach model.…”