Mathematical Models of Reconstruction of Principal Magnetization Curve in Rapid Control of Magnetic Characteristics of Electrical Steel

Abstract

Mathematical models for reconstruction of the principal magnetization curve of sheet electrical steel from the measured weber-ampere characteristic are designed. Samples of steel 3408 taken by parallel shears and by laser cutting are studied with the help of a device for rapid control of magnetic characteristics of sheet electrical steels. The error of the determination of the magnetization curve with the use of the models does not exceed ± 5%. The results obtained make it possible to raise the efficiency of monitoring of magnetic properties of sheet steels under the conditions of large-scale production of magnetic cores of electrical devices.