Brushless electrical power generator with reduced harmonics

Details Brushless electrical power generator with reduced harmonics Brushless electrical power generator with reduced harmonics

1990-02-27

1992-01-07

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

336 65, H02K 1100

Patent

active

050794620

ABSTRACT:
A brushless generator in accordance with the present invention includes a main generator having a stator (12) on which is wound at least one phase winding (52-56), each phase winding producing a phase output (.PHI.A-.PHI.C); a number of current transformers (20-24) equal in number to a number of phases present in the main generator, each current transformer being magnetically coupled to a conductor (48) of a different phase winding; and a plurality of annular disks (40), equal in number of the number of phases, each annular disk having an annulus (46) containing the conductor of the phase winding of a different phase, slot (42) extending from an inner radius (44) defining the annulus to an outer radius (50) defining an outer cirucmference of the disk, each annular disk being held by a support (10) for the current transformer, having a permeability greater than 1020-type steel and attenuating harmonics of a fundamental frequency of AC produced by the main generator.

REFERENCES:
patent: 1752319 (1930-04-01), White
patent: 3577002 (1971-05-01), Hall
patent: 3858107 (1974-12-01), Yarrow et al.
patent: 3867657 (1975-02-01), Yates et al.
patent: 4321493 (1982-03-01), Wefel
patent: 4818957 (1989-04-01), Cort
patent: 4825185 (1989-04-01), Matsui

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