Prediction of angular variation of specific total loss of Goss oriented electrical steel

摘要

Electrical steel (ES) is the optimal material for magnetic cores of large electrical machines and transformers. This material is graded according to the value of its specific total loss (P-s). The anisotropy of its magnetic properties is also crucial in the selection for applications. This paper presents a new method of modeling angular properties of P-s in Goss oriented ES. Additionally, the proposed method can be combined with the three components P-s loss model and the angular behavior can be analyzed in a frequency domain. This approach can limit labor-intensive measurements necessary to describe angular properties of P-s of ES with Goss texture. It may be also a useful tool for designers of magnetic cores of electrical devices.