The problem of electromagnetic field calculation in the end-zone of electrical machines is considered in this paper. A three-dimensional field requires using new methods of computing because the existing methods with the concept of vector potential demand unacceptable computer time. The new method consists of replacing the eddy magnetic field by the potential field of magnetic charges for the calculation of field, forces and associated inductances. Electrical currents of the rotor and stator windings are replaced by magnetic charges. it is possible to use just one scalar potential function for the computation instead of three components of the vector potential. The method of scalar potential can be utilized for the calculation of not only the steady magnetic fields but also electromagnetic fields including the effect of eddy currents in conducting screens and plates. This new technique can be very effectively used for modeling and computation of fields in various types of electrical machinery.
electrical machinery design, eddy currents, electrical currents, rotors, stator windings, scalar potential, vector potential
Electromagnetic fields, Digital computer simulation
Electromagnetics and photonics
(c) 1976 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Demirchian, K. S.; Dombrovski, V. V.; Chechurin, V. L.; and Sarma, M., "Digital computer simulation of electromagnetic field problems as applied to the design of electrical machinery" (1976). Electrical and Computer Engineering Faculty Publications. Paper 7. http://hdl.handle.net/2047/d20003731
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