Method of Successive Approximations for Calculation of Eddy Currents in the Extended Conductors, Moving Near the Partially Saturated Ferromagnets

D.M. Filippov

Abstract


A system of extended conductors located in an external variable magnetic field near the partially saturated ferromagnets is considered. Conductors are moved in a plane with the given velocities. The density of the eddy currents induced in conductors satisfies the system of integral-differential equations. The calculation of nonlinearity of ferromagnetic materials is carried out by replacing the homogeneous nonlinear medium to piecewise homogeneous linear medium. It is assumed that the permeability in each region of the homogeneity depends of time and currents of magnetization induced on boundaries of piecewise homogeneous medium. To find the density of secondary sources is proposed a double iterative process on the inner iterations are determined by the instantaneous values of the magnetic permeability and magnetization density currents and external iterations to solve a system of integral-differential equations. A linear induction motor is given as an example of applying of the method of calculation.

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References


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DOI: http://dx.doi.org/10.24892/RIJEE/20150306

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