Abstract
The magnetization curve and magnetostriction curve are important curves reflecting the magnetic properties of the silicon steel sheet. In the deep-sea environment, the stator core will bear huge compressive stress, and the magnetic characteristics of silicon steel sheet and the iron loss of motor will change. This paper investigates the impact of the pressure on the magnetic properties of silicon steel sheets. The B-H curve of the silicon steel sheet is measured under different pressure levels. Based on the measurement results of the B-H curve, considering the coupling effect between the magnetic field and stress field, the stator core loss under different pressure is calculated.
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