Advanced approach for static part of loss-surface iron loss model

New formulation of Loss-Surface Model for accurate iron loss modeling at extreme flux density and flux variation: Experimental analysis and test on a high-speed PMSM

“…While the static part can be modeled by any static model, the being used model is described in [15], the dynamic part is modeled by the Loss Surface concept. This surface simply consists in giving the dynamic field H dyn (t) as a function of the average induction B(t) and its temporal derivative dB/dt:…”

“…In terms of experimental loss characterization, the no-load losses were measured by the acceleration method described in [28]. The power balance is given in (15). P = P iron + P bearing + P windage (15) with: P iron , P bearing and P windage respectively the iron, bearing, and windage losses.…”

“…The power balance is given in (15). P = P iron + P bearing + P windage (15) with: P iron , P bearing and P windage respectively the iron, bearing, and windage losses.…”

“…-Type 2: hysteresis models that calculate iron loss by an area integral of the reconstructed hysteresis cycle. This type of model is further divided into Type 2.1 -partial physical model [6,7,8,9] and Type 2.2 -empirical models [10,11,12,13,14,15,16].…”

Loss Model Impact on Multi-Physical Coupling Designed for Sizing Optimization of Electrical Machines

“…This model precisely evaluates the iron loss but requires some specific measurements (under a controlled triangular waveform B(t) and variable frequency) introduced in the form of a dynamic surface depending on B and dB/dt. In order to describe the macroscopic behavior of the material, a static hysteretic model [11] is introduced in the main formulation (3). To predict the 2D vector excitation behavior observed in some parts of the machine magnetic circuit, the LS and M4+ models use the magnetic flux density decomposition according to two axes Bθ and Br that are projected on a new orthonormal coordinate [10].…”