Rotational magnetic properties of silicon steel laminations by 3-D magnetic properties measurement

Silicon steel laminations have the complex nonlinear magnetic properties which is critical part of electrical performance in electrical equipment. In order to reduce the energy consumption and optimize the electrical products, the accurate simulation in the numerical analysis of electromagnetic field is necessary. Three-dimensional (3-D) magnetic properties measurement of the silicon steel sheets under widely frequency may be a more suitable method to obtain the accurate magnetic properties. Using the feedback control, the circular rotating magnetic fields are well controlled and the magnetic properties of laminated silicon steel are tested under this magnetic field. By using this new designed 3-D tester, rotational magnetic hysteresis of the laminated silicon steels are firstly measured and analyzed.