ES414061A1 - Turbine speed controlling valve operation - Google Patents
Turbine speed controlling valve operationInfo
- Publication number
- ES414061A1 ES414061A1 ES414061A ES414061A ES414061A1 ES 414061 A1 ES414061 A1 ES 414061A1 ES 414061 A ES414061 A ES 414061A ES 414061 A ES414061 A ES 414061A ES 414061 A1 ES414061 A1 ES 414061A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- fine
- speed
- digital
- computer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Measuring Volume Flow (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A method of controlling the operation of a drive machine whose output shaft speed is controlled by the metered intake of a fluid for operation through a valve, with a digital computer that is operated to generate control signals to locate the valve. according to a selected reference, in order to locate the valve to cause the operation of the driving machine as required by the control signals, in which the speed of the output shaft is detected by the generation of speed pulses that have a frequency proportional to the speed of the output shaft, characterized in that the pulses are processed to provide digital signals that are input directly to the digital computer and processed to generate the control signals, and that at least one fine digital signal is generated high accuracy but relatively low reliability and even a less accurate digital signal d but of higher reliability and are compared to each other and the fine digital signal is used by the computer when the fine signal falls within the error tolerance of the signal of even higher reliability and, the digital signal is even used by the computer as long as the fine signal is outside a predetermined tolerance around the signal for even greater reliability. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24788872A | 1972-04-26 | 1972-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES414061A1 true ES414061A1 (en) | 1976-02-01 |
Family
ID=22936802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES414061A Expired ES414061A1 (en) | 1972-04-26 | 1973-04-25 | Turbine speed controlling valve operation |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS554201B2 (en) |
| AU (1) | AU473620B2 (en) |
| BE (1) | BE798784A (en) |
| BR (1) | BR7303026D0 (en) |
| CA (1) | CA1021042A (en) |
| CH (1) | CH570001A5 (en) |
| DE (1) | DE2319104A1 (en) |
| ES (1) | ES414061A1 (en) |
| FR (1) | FR2182524A5 (en) |
| GB (1) | GB1385452A (en) |
| IN (1) | IN139860B (en) |
| IT (1) | IT984135B (en) |
| NL (1) | NL7305756A (en) |
| SE (1) | SE389165B (en) |
| ZA (1) | ZA732353B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321901A (en) * | 1979-08-03 | 1982-03-30 | Jidosha Denki Kogyo Kabushiki Kaisha | Automatic speed control device |
| GB2194693A (en) * | 1986-08-29 | 1988-03-09 | Rank Pullin Controls Ltd | Stepper motor drive apparatus |
| WO2019217625A1 (en) * | 2018-05-09 | 2019-11-14 | Abb Schweiz Ag | Breaker auto-synchronizer |
| CN110344945B (en) * | 2019-07-25 | 2021-10-01 | 中国航发沈阳发动机研究所 | Load shedding control method and system |
-
1973
- 1973-04-04 ZA ZA732353A patent/ZA732353B/en unknown
- 1973-04-04 IN IN780/CAL/73A patent/IN139860B/en unknown
- 1973-04-16 GB GB1822773A patent/GB1385452A/en not_active Expired
- 1973-04-16 DE DE2319104A patent/DE2319104A1/en active Pending
- 1973-04-18 CA CA169,108A patent/CA1021042A/en not_active Expired
- 1973-04-25 NL NL7305756A patent/NL7305756A/xx unknown
- 1973-04-25 SE SE7305847A patent/SE389165B/en unknown
- 1973-04-25 ES ES414061A patent/ES414061A1/en not_active Expired
- 1973-04-25 JP JP4630073A patent/JPS554201B2/ja not_active Expired
- 1973-04-25 FR FR7315025A patent/FR2182524A5/fr not_active Expired
- 1973-04-26 BE BE1005004A patent/BE798784A/en not_active IP Right Cessation
- 1973-04-26 BR BR3026/73A patent/BR7303026D0/en unknown
- 1973-04-26 AU AU54865/73A patent/AU473620B2/en not_active Expired
- 1973-04-26 IT IT23440/73A patent/IT984135B/en active
- 1973-04-26 CH CH598473A patent/CH570001A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT984135B (en) | 1974-11-20 |
| ZA732353B (en) | 1974-02-27 |
| IN139860B (en) | 1976-08-14 |
| SE389165B (en) | 1976-10-25 |
| CH570001A5 (en) | 1975-11-28 |
| FR2182524A5 (en) | 1973-12-07 |
| BR7303026D0 (en) | 1974-07-11 |
| JPS4941706A (en) | 1974-04-19 |
| CA1021042A (en) | 1977-11-15 |
| AU473620B2 (en) | 1976-06-24 |
| GB1385452A (en) | 1975-02-26 |
| AU5486573A (en) | 1974-10-31 |
| BE798784A (en) | 1973-10-26 |
| JPS554201B2 (en) | 1980-01-29 |
| NL7305756A (en) | 1973-10-30 |
| DE2319104A1 (en) | 1973-10-31 |
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