Abstract
The present paper presents a new model of magnetostrictive hysteresis loop. A unified approach of both the hysteresis of λ(B) relation, as well as the lift-off phenomenon is proposed, which are explained together on the base of the response of the first order inertial element. Considering previously presented reports, the Maxwell–Boltzmann distribution based model of magnetostrictive characteristics with local maxima, enables modeling magnetostrictive loops. The model was validated on the results of measurements of magnetostrictive hysteresis loops of Mn0.70Zn0.24Fe2.06O4 ferrite for power applications. Good agreement was confirmed for major magnetostrictive loop, especially for smaller values of flux density. As a result, the proposed model may be used for modeling the magnetostrictive response of inductive components of electrical machines, power conversion devices or magnetostrictive actuators.
Highlights
The magnetostriction phenomenon, observed for the first time by Joule in 1847 [1], is connected with changes of linear dimensions of the sample during the magnetization process
The magnetostriction λ compared to the magnetization M dependence is the key for understanding the quantitative description of the magnetostrictive phenomenon. Both the magnetostrictive hysteresis and lift-off phenomenon are very important from the point of view of modeling the magnetostrictive characteristics
This paper presents a new approach to the modeling the both magnetostrictive λ(B) hysteresis and the lift-off phenomenon
Summary
The magnetostriction phenomenon, observed for the first time by Joule in 1847 [1], is connected with changes of linear dimensions of the sample during the magnetization process. The magnetostriction λ compared to the magnetization M (or flux density B) dependence is the key for understanding the quantitative description of the magnetostrictive phenomenon. Both the magnetostrictive hysteresis and lift-off phenomenon are very important from the point of view of modeling the magnetostrictive characteristics. With the use of the first order inertial element, both the hysteresis of magnetostriction and lift-off phenomenon can be modeled together Such approach seems to be judged from the physical point of view due to the fact that the origins of these both effects seem to be similar. H is calculated from electric current winding measured on the 1 Ω measured standard resistor
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