A Hybrid Model for Improved Hysteresis Loss Prediction in Electrical Machines

This paper presents a model for calculating the hysteresis loss in electrical machines. The model can achieve accurate and computationally efficient hysteresis loss calculations by utilizing both analytical equations and the Energetic hysteresis model. The model results are experimentally verified by comparing to a series of minor hysteresis loop measurements. The hybrid model is then implemented to calculate the core losses in a switched reluctance machine using finite-element simulation. The results show that precise machine core loss prediction requires having a model that is capable of calculating the hysteresis losses under a variety of minor hysteresis loops.

[1]  P. Pillay,et al.  Advanced testing and modeling of magnetic materials including a new method of core loss separation for electrical machines , 2012, 2011 IEEE Energy Conversion Congress and Exposition.

[2]  F. Preisach.  Über die magnetische Nachwirkung , 1935 .

[3]  P. Biringer,et al.  A simple method of estimating the minor loop hysteresis loss in thin laminations , 1978 .

[4]  R. Krishnan,et al.  Estimation of switched reluctance motor losses , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[5]  Andrea Cavagnino,et al.  Estimation of Iron Losses in Induction Motors: Calculation Method, Results, and Analysis , 2010, IEEE Transactions on Industrial Electronics.

[6]  Hans Hauser,et al.  Energetic model of ferromagnetic hysteresis: Isotropic magnetization , 2004 .

[7]  P. Pillay,et al.  Lamination core losses in motors with nonsinusoidal excitation with particular reference to PWM and SRM excitation waveforms , 2005, IEEE Transactions on Energy Conversion.

[8]  M. Cheng,et al.  High order finite element model for core loss assessment in a hysteresis magnetic lamination , 2009 .

[9]  C. Ragusa,et al.  Predicting loss in magnetic steels under arbitrary induction waveform and with minor hysteresis loops , 2004, IEEE Transactions on Magnetics.

[10]  Jawad Faiz,et al.  Core losses estimation in a multiple teeth per stator pole switched reluctance motor , 1994 .

[11]  P. Pillay,et al.  An improved formula for lamination core loss calculations in machines operating with high frequency and high flux density excitation , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[12]  Mayergoyz,et al.  Mathematical models of hysteresis. , 1986, Physical review letters.

[13]  Andrea Cavagnino,et al.  Iron Loss Prediction With PWM Supply Using Low- and High-Frequency Measurements: Analysis and Results Comparison , 2008, IEEE Transactions on Industrial Electronics.

[14]  Yoichi Hayashi,et al.  A new approach to calculating core losses in the SRM , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[15]  G. Jewell,et al.  Prediction and measurement of core losses in a high-speed switched-reluctance Machine , 2005, IEEE Transactions on Magnetics.

[16]  D. Jiles,et al.  Theory of ferromagnetic hysteresis , 1986 .

[17]  M. L. Hodgdon,et al.  Mathematical theory and calculations of magnetic hysteresis curves , 1988 .

[18]  W. F. Weldon,et al.  Determination of iron core losses under influence of third-harmonic flux component , 1991 .