CA2026234A1 - Hydraulic positioning system for a hydraulic turbine governor - Google Patents
Hydraulic positioning system for a hydraulic turbine governorInfo
- Publication number
- CA2026234A1 CA2026234A1 CA2026234A CA2026234A CA2026234A1 CA 2026234 A1 CA2026234 A1 CA 2026234A1 CA 2026234 A CA2026234 A CA 2026234A CA 2026234 A CA2026234 A CA 2026234A CA 2026234 A1 CA2026234 A1 CA 2026234A1
- Authority
- CA
- Canada
- Prior art keywords
- hydraulic
- flow
- piston
- turbine
- cylinder assembly
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
HYDRAULIC POSITIONING SYSTEM FOR A
HYDRAULIC TURBINE GOVERNOR
ABSTRACT
The hydraulic piston cylinder assembly which operates the governor of a turbine which powers a hydropower generator has a servo valve capable of flowing only a portion of its flow requirements during normal low power fluctuation conditions of the turbine's operation.
During high power fluctuation conditions of the turbine's operation, such as during start-up, hydraulic fluid also flows to and from the piston and cylinder assemblies through high flow pressure and return conduits that bypass the servo valve. Control of fluid flow in the high flow conduits is accomplished by a proportional throttling valve located in the high flow return line.
The servo valve and proportional throttling valve together have a flow capacity which is equal to the flow requirements of the piston and cylinder assembly and they are both actuated by the same electronic controller.
However, the electronic controller only actuates the proportional throttling valve when the flow requirement of the piston and cylinder assembly exceeds the flow capacity of the servo valve. A hydraulic logic circuit activated by the electronic controller allows the high flow pressure and return conduits to be reversed for two-way operation of the piston and cylinder assembly.
HYDRAULIC TURBINE GOVERNOR
ABSTRACT
The hydraulic piston cylinder assembly which operates the governor of a turbine which powers a hydropower generator has a servo valve capable of flowing only a portion of its flow requirements during normal low power fluctuation conditions of the turbine's operation.
During high power fluctuation conditions of the turbine's operation, such as during start-up, hydraulic fluid also flows to and from the piston and cylinder assemblies through high flow pressure and return conduits that bypass the servo valve. Control of fluid flow in the high flow conduits is accomplished by a proportional throttling valve located in the high flow return line.
The servo valve and proportional throttling valve together have a flow capacity which is equal to the flow requirements of the piston and cylinder assembly and they are both actuated by the same electronic controller.
However, the electronic controller only actuates the proportional throttling valve when the flow requirement of the piston and cylinder assembly exceeds the flow capacity of the servo valve. A hydraulic logic circuit activated by the electronic controller allows the high flow pressure and return conduits to be reversed for two-way operation of the piston and cylinder assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002026234A CA2026234C (en) | 1990-10-03 | 1990-10-03 | Hydraulic positioning system for a hydraulic turbine governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002026234A CA2026234C (en) | 1990-10-03 | 1990-10-03 | Hydraulic positioning system for a hydraulic turbine governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2026234A1 true CA2026234A1 (en) | 1992-04-04 |
| CA2026234C CA2026234C (en) | 1994-11-22 |
Family
ID=4146053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002026234A Expired - Fee Related CA2026234C (en) | 1990-10-03 | 1990-10-03 | Hydraulic positioning system for a hydraulic turbine governor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2026234C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912525A (en) * | 2019-11-05 | 2020-03-24 | 武汉武水电气技术有限责任公司 | High oil pressure microcomputer speed regulator |
-
1990
- 1990-10-03 CA CA002026234A patent/CA2026234C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912525A (en) * | 2019-11-05 | 2020-03-24 | 武汉武水电气技术有限责任公司 | High oil pressure microcomputer speed regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2026234C (en) | 1994-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |