Pulsating signal generator for the production of polyphase volta

Details Pulsating signal generator for the production of polyphase volta Pulsating signal generator for the production of polyphase volta

1979-04-27

1981-04-07

Hickey, Robert J.

Electricity: single generator systems

Generator control

Acyclic or homopolar-type generator

310111, 310168, H02K 3900

Patent

active

042609445

ABSTRACT:
A pulsating signal generator for the production, in particular, of 3 systems of triphase voltages, in which the resulting pseudo-sinusoidal voltages of the 3 systems are modulated in amplitude at predetermined, fixed or variable pulsation .epsilon., and staggered in phase by 2.pi./3 radians among themselves. The generators of the double homopolar rotating machine type comprise a magnetic stator circuit of double homopolar alternator construction provided with two armatures, each including a system of triphase windings with 3 independent circuits per phase, each circuit of each phase of the first armature being connected in series with one of the circuits of a phase of the second armature. A rotor with a rotating magnet divided into two half-rotors by an airgap 23 is disposed on a shaft concentric with the armatures and an excitation induction coil, concentric to the axis of the rotor provides magnetic flux through the armatures. A driving means drives the half-rotors at speeds .mu..sub.1, and .mu..sub.2 different one from the other and which are such that the half-difference of the speeds (.mu..sub.1 -.mu..sub.2 /2) is equal to .epsilon.. The generation of triphase pseudo-sinusoidal voltages of a given pulsation .epsilon. from machines rotating at a speed much higher than .epsilon. is thus realized.

REFERENCES:
patent: 3303369 (1967-02-01), Erickson
patent: 3309547 (1967-03-01), Woodward, Jr.
patent: 3319100 (1967-05-01), Erickson
patent: 3321652 (1967-05-01), Opel
patent: 3571639 (1971-03-01), Tiltins

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