Patent US3651331A successfully refreshed from Google Patents.
US3651331A
Expired / Lapsed
US
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Control installation for a hydro-electric power station
Assignee: ATELIERS DE CONSTRUCTIONS MECANIQUES DE VEREY SA
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Filing: 1970-03-02
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Granted: 1972-03-21
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Expires: 1990-03-02
Abstract
Abstract A control installation for a hydro-electric power station comprises slow-action integrated means for controlling the power outputs of each of a plurality of turbines to bring them to desired values and for equalizing the desired values, and a direct-action regulator which acts without substantial dephasing on output-adjusting members of the turbines.
Inventors
- 👤 Victor Raeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:27
CPC Classifications
F; F03; F03B; F03B15/00; F03B15/02; F03B15/04; F03B15/06; F03B15/16; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A control installation for a hydro-electric power station comprising: a plurality of turbine groups with at least one output adjustment member for each turbine, a regulator for each of said output adjustment members, and individual power command device connected to each regulator to furnish a first signal for the regulation of the desired individual power output from its turbine; an overall power command device connected through a distributing line to all the individual power command devices, said overall power command device emitting a second signal as a function of the desired overall power to be supplied by the station, said second signal acting on all of the individual power command devices of the regulators of the groups depending thereupon in such a manner that the first signals emitted by these devices cause the power supplied by each turbine to become equal; and a direct-action regulating device connected by distributor lines directly to the regulators of the output adjustment member of each of a plurality of turbines dependent thereupon to act without substantial dephasing on said output adjustment members.
Claim 2
Dependent Claim
178 words
A control installation for a hydro-electric power station comprising: a plurality of turbine groups with at least one output adjustment member for each turbine, a regulator for each of said output adjustment members, and individual power command device connected to each regulator to furnish a first signal for the regulation of the desired individual power output from its turbine; an overall power command device connected through a distributing line to all the individual power command devices, said overall power command device emitting a second signal as a function of the desired overall power to be supplied by the station, said second signal acting on all of the individual power command devices of the regulators of the groups depending thereupon in such a manner that the first signals emitted by these devices cause the power supplied by each turbine to become equal; and a direct-action regulating device connected by distributor lines directly to the regulators of the output adjustment member of each of a plurality of turbines dependent thereupon to act without substantial dephasing on said output adjustment members.
Claim 3
Dependent Claim
49 words
A control installation according to claim 1, wherein the output adjustment members of said turbines, upon which said direct-action regulating device acts, each comprise a distribution slide-valve of the control of a turbine servo-motor, said direct-action regulation device being able to act without substantial de-phasing on said distribution slide-valves.
Claim 4
Dependent Claim
74 words
A control installation according to claim 1, wherein said direct-action regulating device supplies a third regulating signal directly to said regulators through adapters and indirectly to said regulators of said output adjustment members by the integrated action of said overall and said individual power command devices, and comprising a feed-back device for feeding back with reversed sign said second signal from said overall power command device to reduce the value of said third signal.
Claim 5
Dependent Claim
34 words
A control installation according to claim 3, comprising means for measuring said third signal and means for cutting-out said third signal when the value thereof exceeds or falls below a certain value or values.
Claim 6
Dependent Claim
38 words
A control installation according to claim 3, comprising, for each turbine, means for feeding back with reversed sign to an auxiliary device an output signal from a turbine to reduce the direct-action third signal acting on that turbine.
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |