Prime-mover dynamo plants – Electric control – Fluid-current motors
Patent
1978-11-22
1981-09-15
Miller, J. D.
Prime-mover dynamo plants
Electric control
Fluid-current motors
416 41, 416153, 416189, 416DIG4, F03D 900
Patent
active
042899702
ABSTRACT:
A wind powered electrical generator having a rotatable wind wheel (21) carrying one of the armature (42) or field structures and a plurality of windvanes (45) connecting the rim to a central shaft (28), a stator (39) carrying the other of the armature or field structures, and a supporting structure (22) for the windwheel rotor shaft and the stator. The armature winding is carried by the windwheel at its perimeter, and the field structure is a ring structure which lies just radially outward of the armature winding and is carried by the fixed housing structure which perimetrally surrounds the windwheel. Bearing support (48) provided at the perimeter of the windwheel by low friction bearings carried by the fixed housing structure minimizes bearing stresses developed at the supporting shaft under wind loading conditions. The electical output of the generator is compared against a reference standard to generate corrective error signals when the phase of the generated electrical signal differs from that of the reference standard. Corrective mechanisms utilized are means for changing the angle presented by the windwheel blades to the wind; a braking structure; and a feedback field winding.
REFERENCES:
patent: 1233232 (1917-07-01), Heyroth
patent: 3635583 (1972-01-01), Chilman
patent: 3637323 (1972-01-01), Chilman
patent: 3740565 (1973-06-01), Wesley
patent: 4160170 (1979-07-01), Harner et al.
Miller J. D.
Rebsch Donald L.
Udell Walter B.
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