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A New Approach for Characterizing the Energetic Magnetic Behavior of Fe-9Cr Steel Under Transient Conditions

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3 Author(s)
Marracci, M. ; Dept. of Energy & Syst. Eng., Univ. of Pisa, Pisa, Italy ; Tellini, B. ; Maione, I.A.

The aim of this paper is to evaluate the magnetic properties and losses of the Fe-9Cr steel under nonperiodic conditions of the magnetic field. A new approach combining an optimized linear problem and the properties of the classical Preisach theory is adopted and described. An experimental analysis is carried out to characterize quasi-static major loop and dynamic cycles obtained at different rates of the driving magnetic field H. After a series of quasi-static major loops, dynamic cycles are defined in a first case, varying H from the saturation to its opposite value, and in a second case, forming minor asymmetric loops. In both the cases, hysteresis and eddy current losses are estimated via the proposed method. Total losses are compared with measurement results to validate the procedure.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:61 ,  Issue: 12 )