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 first series of measurements is performed for characterizing the quasi-static major loop and various dynamic cycles obtained at different rate of the driving magnetic field H. Then, a series of “ad-hoc” experiments is defined in order to provide a good basis for discussion and validation of eddy current and hysteresis losses calculated via analytical methods. In a first case, moving from the saturation H is rapidly changed at different rates towards the opposite saturation. In a second case, minor asymmetric loops are formed after a series of major cycles. In both the cases, measurements are performed under non periodic conditions. Experimental and simulation results are reported and discussed throughout the paper.
Characterization of magnetic properties and losses of Fe-9Cr steel under transient conditions
MARRACCI, MIRKO;TELLINI, BERNARDO;
2011-01-01
Abstract
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 first series of measurements is performed for characterizing the quasi-static major loop and various dynamic cycles obtained at different rate of the driving magnetic field H. Then, a series of “ad-hoc” experiments is defined in order to provide a good basis for discussion and validation of eddy current and hysteresis losses calculated via analytical methods. In a first case, moving from the saturation H is rapidly changed at different rates towards the opposite saturation. In a second case, minor asymmetric loops are formed after a series of major cycles. In both the cases, measurements are performed under non periodic conditions. Experimental and simulation results are reported and discussed throughout the paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
