Abstract
The design and calculation of electrical machines and magnetic actuators requires accurate models to represent hysteresis effects in ferromagnetic materials. The magnetic nonlinearity of the iron core is usually considered by an anhysteretic magnetization curve. With this assumption, hysteresis’ effects in the field computation are completely neglected. This paper presents a comparative study of different hysteresis models, particularly vector stop model and Pragmatic Algebraic Model (PAM), with regard to the anhysteretic vector magnetization model. The analysis shows the resulting accuracy of different material models under alternating and rotating magnetizations. By integrating material models into the in-house finite element (FE) tool, named iMOOSE, the distribution of magnetic flux density in an electrical machine, a power transformer are depicted.
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