The magnetic properties of iron cores of electrical machines can be affected by complex stress, which influences the B-H curve and the magnetic losses. This paper proposes a measuring method by which the two-dimensional magnetic properties of electrical steel sheets are measured through a cross-shaped rotational single-sheet tester, under triaxial stress conditions. Three stress-loading systems are installed in three perpendicular directions. A novel square-shaped vector B-coil is designed to overcome the deformation of B-coils caused by stress. Furthermore, an array of three vector H-coils and a linear fitting method are used to measure the magnetic field strength H . The waveform of magnetic flux density is controlled through a feedback system. Measurements under one and two-dimensional supply conditions are successfully performed on non-oriented specimens under such complex stress.

Measurement of the vector magnetic property of electrical steel sheet under triaxial stress / Huang, Song; Ragusa, Carlo Stefano; Xu, Weijie; Solimene, Luigi; Wang, Shuhong. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - STAMPA. - (2024). [10.1109/tim.2024.3442856]

Measurement of the vector magnetic property of electrical steel sheet under triaxial stress

Huang, Song;Ragusa, Carlo Stefano;Solimene, Luigi;
2024

Abstract

The magnetic properties of iron cores of electrical machines can be affected by complex stress, which influences the B-H curve and the magnetic losses. This paper proposes a measuring method by which the two-dimensional magnetic properties of electrical steel sheets are measured through a cross-shaped rotational single-sheet tester, under triaxial stress conditions. Three stress-loading systems are installed in three perpendicular directions. A novel square-shaped vector B-coil is designed to overcome the deformation of B-coils caused by stress. Furthermore, an array of three vector H-coils and a linear fitting method are used to measure the magnetic field strength H . The waveform of magnetic flux density is controlled through a feedback system. Measurements under one and two-dimensional supply conditions are successfully performed on non-oriented specimens under such complex stress.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2991796