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Electrical and Computer Engineering

Selected Works

Sarma Mulukutla

2012

Vector potential

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Digital Computer Simulation Of Electromagnetic Field Problems As Applied To The Design Of Electrical Machinery, K. S. Demirchian, V. V. Dombrovski, V. L. Chechurin, M. Sarma Feb 2012

Digital Computer Simulation Of Electromagnetic Field Problems As Applied To The Design Of Electrical Machinery, K. S. Demirchian, V. V. Dombrovski, V. L. Chechurin, M. Sarma

Sarma Mulukutla

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. …


New Developments In The Computer-Aided Analysis Of Three-Dimensional Electromagnetic Field Problems As Applied To The Design Of Electrical Machinery, Mulukutla S. Sarma Feb 2012

New Developments In The Computer-Aided Analysis Of Three-Dimensional Electromagnetic Field Problems As Applied To The Design Of Electrical Machinery, Mulukutla S. Sarma

Sarma Mulukutla

An accurate knowledge of the magnetic as well as other field distributions is of great importance in design optimization. In two dimensional problems with the current flow in only one direction, the magnetic field can be solved by computing a scalar potential or one component of the vector potential, The general formulation for three-dimensional solutions, including nonlinearities, is more complex and requires all three components of the vector potential as well as a scalar potential for the description of the fields. It is the purpose of this paper to present a general systematic, novel formulation at low frequencies feasible for …