Magnetic Fields in Nonlinear Salient Pole Alternators
- 1 October 1968
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-87 (10) , 1848-1856
- https://doi.org/10.1109/tpas.1968.292147
Abstract
The flux densities under load are established in the cross section of salient pole alternators of low pole numbers. The two-dimensional partial differential equations describing the magnetic vector potentials are first transformed in partial difference equations and a new algorithm is given. A combination of rectangular and polar grids is used to follow the contours of the alternator. The reluctivity of the material is assumed to be the function of the magnetic induction. An iteration procedure consisting of relaxation of the vector potentials using a new form of blockrelaxation and underrelaxation of reluctivities is described. A computer program in FORTRAN language is given and applied to find the airgap radial inductions for a 2750-kVA, 2300-volt, 60-Hz, three-phase, eight-pole alternator.Keywords
This publication has 3 references indexed in Scilit:
- Representation of the Magnetization Characteristic of DC Machines for Computer UseIEEE Transactions on Power Apparatus and Systems, 1968
- Combination and Separation of Coordinates and Modular Programming for DC Machine FieldsIEEE Transactions on Power Apparatus and Systems, 1968
- Nonlinear Theory of Synchronous Machines On-LoadIEEE Transactions on Power Apparatus and Systems, 1966