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Patent US4357542A successfully refreshed from Google Patents.
US4357542A
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Wind turbine generator system
Assignee: Westinghouse Electric Corp
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Filing: 1979-07-12
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Granted: 1982-11-02
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Expires: 1999-07-12
Abstract
Abstract Wind turbine generator systems incorporating a multi-speed pole amplitude modulated type dynamo electric machine allowing efficient operation at consecutive speeds in a ratio preferably less than 2:1. A current limiting reactor, preferably including an inductance coil, and an over-running clutch, are utilized in conjunction with any multi-speed generation system to alleviate impact on a utility grid during switching among operational speeds.
Inventors
- 👤 Herbert S. Kirschbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:02
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/0272; F03D15/00; F03D9/00; F03D9/20; F03D9/25; F03D9/255; F05; F05B; F05B2220/00; F05B2220/70; F05B2220/706; F05B2220/7062; F05B2270/00; F05B2270/10; F05B2270/1016; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y10; Y10S; Y10S174/00; Y10S174/13; Y10S174/14; Y10S174/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
Apparatus for controlling the transfer of electrical energy from a multi-speed pole amplitude modulated type dynamo electric machine powered by a wind machine generating alternating current to a primary electrical circuit comprising: a. an electrical conduit between said dynamo electric machine and said circuit; b. a breaker for selectively opening and closing the flow of electrical energy through said conduit; and c. a current limiting reactor and associated means for connecting said reactor in series with said conduit during a transition from a low rotational speed to a high rotational speed of said dynamo electric machine.
Claim 2
Dependent Claim
96 words
Apparatus for controlling the transfer of electrical energy from a multi-speed pole amplitude modulated type dynamo electric machine powered by a wind machine generating alternating current to a primary electrical circuit comprising: a. an electrical conduit between said dynamo electric machine and said circuit; b. a breaker for selectively opening and closing the flow of electrical energy through said conduit; and c. a current limiting reactor and associated means for connecting said reactor in series with said conduit during a transition from a low rotational speed to a high rotational speed of said dynamo electric machine.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |