An Experimental-Numerical Approach for Energy Loss Separation of Grain-Oriented Electrical Steels

Energy loss analysis of the magnetic cores of electrical machines and power transformers, requires an accurate figure of energy loss mechanism and components. This paper proposes an advanced experimental-numerical approach to further understanding the magnetising process of Grain-Oriented (GO) electrical steels with predominant focus on energy loss separation. As the main contribution of this work, static hysteresis loop (SHL) of the material can be constructed for energy loss analysis, and dynamic modelling purposes. The proposed approach is in line with the magnetic hysteresis and phenomenological concepts of rate-dependent and rate-independent energy loss components of ferromagnetic materials under time varying magnetic fields.