Wind electric plant with improved alternator field excitation
OwnerMarcellus L. Jacobs, Paul R. Jacobsinventors
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Abstract
In a wind electric plant of the type including a wind-driven propeller or the like and an alternating current alternator connected to be driven thereby to generate electrical energy for charging storage batteries or other desired use, electrical circuitry connected with the alternator and a storage battery and including controls responsive to alternator speed and battery voltage to provide a relatively constant excitation current for the field winding of the alternator from a storage battery, whereby the alternator field is fully excited at substantially all speeds of operation thereof and the need for a conventional alternator exciter is eliminated.
Claims6
In a wind electric plant of the type including a wind driven propeller or the like supported at the top of a tower and connected to drive an alternator supported on the tower to generate electrical energy, and storage battery means connected to be charged by the alternator, the improvement comprising:
- electrical control circuit means connecting the storage battery means with the field winding of the alternator to supply a substantially constant current to the field winding at substantially all speeds of operation of the wind electric plant within a predetermined range of speeds to excite the field of the alternator and thus obtain full excitation of the alternator field at substantially all speeds of operation of the wind electric plant within said range.
Dependencies are inferred from the claim text.