SYNTHESIS OF HIGH-SPEED HOMOPOLAR ALTERNATORS AND THEORY OF SOLID ROTOR ELECTRICAL MACHINES, PHASE CC, PART I.
Abstract
A numerical technique is discussed for computing the flux distribution and leakage reactance in the end region of a homopolar alternator. A model is described which accounts for the actual geometry of the end region and windings. Effects of the air gap and stator slots are taken into account through the use of ficticious currents. Partial differential equations and boundary conditions describing the electromagnetic fields are developed. Cases for end shields of zero, finite, and infinite permeability are considered. The technique of computing the end leakage reactance by means of an energy method is established. Difference formulae are derived to approximate the partial differential equations and boundary conditions. The three dimensional lattice of points to which these formulae are applied is also described. A detailed discussion is given of the computer programs and iterative procedures used in the solution of this problem. A discussion of the results compares this method of computation with other more conventional approaches. Specific areas of difficulty are indicated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1967
- Accession Number
- AD0680974
Entities
People
- Edward A. Erdelyi
- M. S. Sarma
Organizations
- University of Colorado Boulder