Magnetic Characteristics and Core Losses in Machine Laminations: High-Frequency Loss Prediction From Low-Frequency Measurements

Examining Magnetic Property Variation: A Look at Specification-Acceptable Electrical Steel

“…it may seem that such a variation represents only a small adjustment in the overall losses but, as has been shown by Pillay and others [8], eddy-current losses will come to dominate the total loss value as operating frequencies rise, whether resulting from excitation or pole switching. therefore, a change in properties resulting from a modest variation in thickness from one lot of lamination material to the next may play an important role in the consistent operation of production machines at elevated frequencies.…”

“…Popescu and ionel [7] examined a model for deriving loss values with minimal experimental data. Zhang et al [8] have presented work on a method for developing data at elevated frequencies derived from experimental tests at just one low frequency. these and similar avenues of investigation are bringing to the field of electrical machine design a wealth of practical information for the design and optimization of specific machines.…”

Development of a dedicated laboratory system for measurement of iron losses in high speed PMSM

“…Iron loss separation is im paper [17] Maxwell's equation character in the magnetic lamin element method for separating that are the hysteresis and e losses occur within the iron an iron used and are proportiona grain size and frequency [11 linearly proportional to the m used, like resistivity and densi square of the lamination thick frequency [11,17]. By utilizi linearly proportional to the fre loss is proportional to the measured total iron loss can be temperature.…”

Core Loss Prediction in Electrical Machine Laminations Considering Skin Effect and Minor Hysteresis Loops

“…This phenomenon (skin effect) is pronounced when the lamination is exposed to high-frequency excitations, particularly for thicker laminations. Accurate core loss calculation in the presence of skin effect can be achieved using numerical models [21]- [23]. However, these approaches are not suitable for electrical machine design and optimization, where a computationally efficient method is required, as the core loss calculation has to be performed in each machine mesh element.…”