WO2000039458A1 - Verfahren zum anfahren eines maschinensatzes, umfassend eine pumpturbine und einen motorgenerator - Google Patents
Verfahren zum anfahren eines maschinensatzes, umfassend eine pumpturbine und einen motorgenerator Download PDFInfo
- Publication number
- WO2000039458A1 WO2000039458A1 PCT/EP1999/010268 EP9910268W WO0039458A1 WO 2000039458 A1 WO2000039458 A1 WO 2000039458A1 EP 9910268 W EP9910268 W EP 9910268W WO 0039458 A1 WO0039458 A1 WO 0039458A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- generator
- machine set
- machine
- speed
- starting
- Prior art date
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
- F03B15/005—Starting, also of pump-turbines
-
- 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
Definitions
- Method for starting up a machine set comprising a pump turbine and a motor generator
- the invention relates to a method according to feature 1 of claim 1.
- the map of such a turbine is usually shown in a diagram in which the unit flow rate Q1 'is plotted against the unit speed n1'.
- the characteristics of many pump turbines i. H. the lines of the vane openings, S-shaped curved. This S-shaped curvature is particularly strong in the idle area of the map and in the extreme
- Partial load range also during the transition from phase shifting to turbine operation. This leads to the fact that in these areas with large values of n1 '- d. H. with a small fall height - stable stationary operation is not possible. In extreme cases, this can even lead to the following: If you want to synchronize and load the machine set consisting of the turbine and motor generator, this is not possible, because the turbine comes into braking mode or even into reverse pumping mode.
- CONFIRMATION COPY DE 29 35 480 A1 describes a method for operating a pump turbine between part-load and reverse pump operation. The aim is to bring the characteristics of the pump turbine to a stable characteristic when starting up. The solution is that at least one guide vane is at least temporarily removed from the synchronous assembly and pre-opened.
- the invention has for its object to provide a method with which a machine set, including a pump turbine and a motor generator, can be started without problems, without the risk that the
- Turbine goes into the braking mode or into the reverse pumping mode, furthermore without increased risk of wear and without any particular mechanical or electrical effort.
- this state is then used immediately by synchronizing the machine set.
- the machine set is then loaded by opening the guide device.
- the flow increases and energy is fed into the network.
- the operating point must be shifted so far that after the pressure surge has subsided, ie after returning to the original head, the critical map area has been left.
- the time period for performing the synchronization and loading is not very long. It is usually one to two seconds. The processes must therefore be carried out quickly. It is therefore advisable to integrate the synchronizer into the turbine controller.
- the net head can also be temporarily changed by changing the operating point of an adjacent machine set that is connected to the same pressure pipeline.
- the pressure wave generated propagates in the pressure pipeline at the speed of sound (i.e. at a speed of around 1200 m / s), starting from the guide vanes.
- the pressure wave is reflected at points of discontinuity (changes in cross section, containers, etc.) and returns with a negative amplitude.
- reflection time After the so-called reflection time, this leads to a reduction in the net fall height compared to the original value. This means that for the entire process (synchronization and loading) a maximum of half the reflection time Available. There is therefore a hurry to synchronize and load.
- Synchronizers that are common today mostly work with very low phase change speeds between the voltage systems of the motor generator and the network. It therefore takes a relatively long time until the generator voltage and the mains voltage are in phase and until the circuit breaker can be closed. Therefore, a powerful synchronizer must be used, which - as mentioned above - is integrated in the turbine controller.
- Tax law for changing the vane position.
- the tax law is optimized in such a way that the pressure increase on the machine is maintained as long as possible.
- the first solution is set out in claims 1 and 3. You could call it a "surge solution”.
- the second solution is defined in claim 4. You could call it a "generator brake solution”.
- the invention is explained in more detail with reference to the drawing, namely for the pressure surge and the generator brake solution.
- a map of a turbine is shown therein.
- the unit flow QV is plotted on the ordinate and the unit speed n1 'on the abscissa.
- Curves 1 through 6 are constant vane opening curves.
- the two curves 10, 20 are curves of constant net head. The normal operating range lies between these two curves.
- Curve 30 shows the idle curve.
- Curve 40 is a curve that can be traversed according to the invention.
- Curve 50 is the idle curve shifted with the aid of the generator brake.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Water Turbines (AREA)
- Hydraulic Turbines (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU19837/00A AU1983700A (en) | 1998-12-29 | 1999-12-22 | Method for starting a machine group comprising a pump turbine and a motor generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19860617A DE19860617C1 (de) | 1998-12-29 | 1998-12-29 | Verfahren zum Anfahren eines Maschinensatzes, umfassend eine Pumpturbine und einen Motorgenerator |
DE19860617.6 | 1998-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000039458A1 true WO2000039458A1 (de) | 2000-07-06 |
Family
ID=7893050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/010268 WO2000039458A1 (de) | 1998-12-29 | 1999-12-22 | Verfahren zum anfahren eines maschinensatzes, umfassend eine pumpturbine und einen motorgenerator |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1119525C (de) |
AU (1) | AU1983700A (de) |
DE (1) | DE19860617C1 (de) |
WO (1) | WO2000039458A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3361088A1 (de) * | 2017-02-09 | 2018-08-15 | GE Renewable Technologies | Verfahren zur stabilisierung der drehzahl einer hydraulischen maschine mit s-charakteristik und entsprechende anlage zur umwandlung hydraulischer energie in elektrische energie |
EP3376022A1 (de) * | 2017-03-17 | 2018-09-19 | GE Renewable Technologies | Verfahren zum betrieb einer hydraulischen maschine und entsprechende installation zur umwandlung hydraulischer energie in elektrische energie |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004005191A1 (de) * | 2004-02-02 | 2005-09-01 | Voith Siemens Hydro Power Generation Gmbh & Co. Kg | Verfahren und Vorrichtung zum Anfahren der Pumpturbine eines Pumpspeicherkraftwerkes |
EP2980399A1 (de) * | 2014-07-29 | 2016-02-03 | ALSTOM Renewable Technologies | Verfahren zur Stabilisierung der Drehzahl einer hydraulischen Maschine mit S-Charakteristik und Anlage zur Umwandlung hydraulischer Energie in elektrische Energie |
PT2995808T (pt) | 2014-09-15 | 2017-06-22 | Alstom Renewable Technologies | Método para determinar o ponto de funcionamento de uma máquina hidráulica e instalação para converter energia hidráulica |
EP3029311B1 (de) * | 2014-12-04 | 2018-09-12 | GE Renewable Technologies | Verfahren zur Stabilisierung der Drehzahl einer hydraulischen Maschine mit S-Charakteristik und Anlage zur Umwandlung hydraulischer Energie in elektrische Energie |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403888A (en) * | 1966-05-20 | 1968-10-01 | English Electric Co Ltd | Reversible pump turbines |
DE2935480A1 (de) | 1979-09-01 | 1981-03-12 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren zum betrieb einer pumpenturbine zwischen teillast- und rueckwaertspumpenbetrieb. |
US4267459A (en) * | 1978-05-26 | 1981-05-12 | Hitachi, Ltd. | Method of operating a hydraulic turbine or a pump-turbine |
-
1998
- 1998-12-29 DE DE19860617A patent/DE19860617C1/de not_active Expired - Fee Related
-
1999
- 1999-12-22 WO PCT/EP1999/010268 patent/WO2000039458A1/de active Application Filing
- 1999-12-22 AU AU19837/00A patent/AU1983700A/en not_active Abandoned
- 1999-12-22 CN CN99815128A patent/CN1119525C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403888A (en) * | 1966-05-20 | 1968-10-01 | English Electric Co Ltd | Reversible pump turbines |
US4267459A (en) * | 1978-05-26 | 1981-05-12 | Hitachi, Ltd. | Method of operating a hydraulic turbine or a pump-turbine |
DE2935480A1 (de) | 1979-09-01 | 1981-03-12 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren zum betrieb einer pumpenturbine zwischen teillast- und rueckwaertspumpenbetrieb. |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3361088A1 (de) * | 2017-02-09 | 2018-08-15 | GE Renewable Technologies | Verfahren zur stabilisierung der drehzahl einer hydraulischen maschine mit s-charakteristik und entsprechende anlage zur umwandlung hydraulischer energie in elektrische energie |
WO2018146273A1 (en) * | 2017-02-09 | 2018-08-16 | Ge Renewable Technologies | Improvements to the stabilization of hydraulic machines with s-zone characteristics |
US11239778B2 (en) | 2017-02-09 | 2022-02-01 | Ge Renewable Technologies | Stabilization of hydraulic machines with S-zone characteristics |
EP3376022A1 (de) * | 2017-03-17 | 2018-09-19 | GE Renewable Technologies | Verfahren zum betrieb einer hydraulischen maschine und entsprechende installation zur umwandlung hydraulischer energie in elektrische energie |
WO2018167240A1 (en) * | 2017-03-17 | 2018-09-20 | Ge Renewable Technologies | Method for operating a hydraulic machine and corresponding installation for converting hydraulic energy into electrical energy |
CN110392781A (zh) * | 2017-03-17 | 2019-10-29 | 通用电气再生能源技术公司 | 运行水力机器的方法和对应的使水力能转换成电能的装置 |
US11248578B2 (en) | 2017-03-17 | 2022-02-15 | Ge Renewable Technologies | Method for operating a hydraulic machine and corresponding installation for converting hydraulic energy into electrical energy |
Also Published As
Publication number | Publication date |
---|---|
DE19860617C1 (de) | 2000-10-05 |
AU1983700A (en) | 2000-07-31 |
CN1334902A (zh) | 2002-02-06 |
CN1119525C (zh) | 2003-08-27 |
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