Author_Institution :
Westinghouse Electr. Corp., Orlando, FL, USA
Abstract :
This paper presents important concepts that are to be considered in designing an AC exciter of a brushless exciter. These concepts are important because, based on these concepts, such as physical proportions, magnetic flux densities, current densities and existing design performance, a method for synthesizing a group of designs can be produced for an optimal solution of brushless exciter design. Brushless exciters are multi-pole, high frequency machines with a rotating armature and a stationary field windings. Selection of exciter rating, rotor length and diameter, armature core and winding, flux level, armature slots, air gap size, armature winding connection, and winding pitch are discussed. Also, a summary table of a case study, which was done utilizing the concepts in this paper, is presented
Keywords :
AC machines; current density; design engineering; exciters; machine theory; magnetic flux; optimisation; rotors; stators; AC exciter; air gap size; armature core; armature core and winding; armature slots; armature winding connection; brushless exciter; current densities; design performance; exciter rating; flux level; magnetic flux densities; multi-pole, high frequency machines; optimal design concepts; physical proportions; rotating armature; rotor length; rotor length and diameter; stationary field windings; winding pitch; Coils; Design optimization; Machine windings; Permanent magnets; Power generation; Regulators; Rotors; Shafts; Stator windings; Voltage;
