US3891860A - Pumped storage power plant - Google Patents

Pumped storage power plant Download PDF

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Publication number
US3891860A
US3891860A US450222A US45022274A US3891860A US 3891860 A US3891860 A US 3891860A US 450222 A US450222 A US 450222A US 45022274 A US45022274 A US 45022274A US 3891860 A US3891860 A US 3891860A
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US
United States
Prior art keywords
pump
turbine
pumped
delivery head
head
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 - Lifetime
Application number
US450222A
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English (en)
Inventor
Georg Hutarew
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JM Voith GmbH
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JM Voith GmbH
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Filing date
Publication date
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    • 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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
    • 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
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the invention relates to a pumped-storage power plant, particularly, to a pumped-storage power plant for a wide range of fall heads and delivery heads, having a pump turbine provided with adjustable guide vanes and coupled with an electric motor-generator.
  • a pumped storage power plant comprising a pump turbine, an electric motor-generator coupled with the pump turbine, and an additional pump also coupled with the motor-generator, means for admitting operating medium separately to the pump turbine and the pump, the additional pump being constructed for pumping only in an upper delivery head subrange ranging upwardly to maximum delivery head, and the pump turbine is so constructed that, when operating as a pump, it pumps only in a lower delivery head subrange ranging downwardly to minimum delivery head, both of the subranges being at least mutually adjacent, the pump turbine being further so constructed that as a turbine, it operated within the entire fall head range.
  • the pump turbine is thus constructed advantageously so that maximum delivery head is located in the region of the optimum of the turbine performance diagram, and preferably somewhat below the optimum normalized speed.
  • a pumped-storage plant having a pump turbine and an additional pump for controlling large fall and delivery heads has, in fact, become known heretofore, wherein both machines are used simultaneously in series for pumping operation (note the article in Hydraulische Maschinen filr Pump Eatanlagen" by E. H. Muehlemann in Escher-Wyss-Mitteilugen l972/l. p. 3 to 11, particulary FIG. 6, p.6).
  • Each machine of this heretofore known assembly takes over part of the total delivery head.
  • Such an installation is not suited for controlling a large delivery head range, because the same detrimental operational conditions described hereinabove would occur therein.
  • This known assembly furthermore requires a separate starting turbine whereas, in an installation according to the invention of the instant application, a separate starting turbine can be dispensed with if, in accordance with a preferred embodiment of the invention, during operation as a turbine, the additional pump is operated with the same direction of rotation as the pump turbine. Then, the pump can be accelerated with the pump turbine which operates as a turbine, and the pump can be used as a start-up turbine for the pump turbine in the direction of rotation of the pump.
  • FIG. I is a performance graph or diagram of the machines of a pumped-storage power plant constructed in accordance with the invention of the instant application.
  • FIGS. 2 and 3 are diagrammatic views of two different embodiments of the pumped-storage power plant of the invention showing varying assemblies of the machines thereof.
  • the fall and delivery head range F for this case is represented by respective dash-dot-dot-dash lines in the diagram of FIG. 1 for I-l and H
  • the optimal point 11/11,, l is fully encompassed with the range F for turbine operation and is near H Rather favorable values for the efficiency are also yet obtained for H
  • the range of delivery heads F is divided into two subranges F and F
  • the pump turbine can be used for pump operation, of course, only in the lower fall head range F down to H
  • the upper limit of this range is located at about the value H of the first example of a plant with only a pump turbine.
  • the 1;, and 0- values obtained the range F at the level of the intersection of H with the pump characteristic curve Pu are considerably more favorable than in the first case discussed hereinabove.
  • the adjacent upper subrange F is taken over by the additional pump alone of the invention of this application, which can be constructed specifically for this delivery head subrange.
  • the two pump subranges should be divided so that a certain amount of overlap is obtained and so that overall, optimum efficiency and the least possible installation levels can be achieved.
  • FIG. 2 one embodiment of an installation according to the invention having a horizontal shaft 4 is shown.
  • the motor-generator 7 is located between the pump turbine 5 and the additional pump 6. Whichever machine 5 or 6 is not in use is vented.
  • the pumpturbine 5 is provided with conventional adjustable guide vanes.
  • the pump turbine 5 is constructed for a greater feed head, because it is advantageous that the suction pipe 9 of the pump turbine 5 be not penetrated by the shaft 8 and, in consideration of the turbine operation, a sufficient axial extension of the suction elbow should be realized.
  • the pump 6 is disposed immediately above the pump turbine 5. However, it is also possible to locate the pump 6 above the motor-generator 7 with the suction elbow extending upwardly.
  • Pumped-storage plant comprising a pump turbine, an electric motor-generator coupled with said pump turbine, an additional pump also coupled with said motor-generator, and means for admitting operating medium separately to said pump turbine and said additional pump, said additional pump having a construction for pumping only in an upper delivery head subrange ranging upwardly to maximum delivery head, and said pump turbine having a construction so that, when operating as a pump, it pumps only in a lower delivery head subrange ranging downwardly to minimum delivery head, both of said subranges being at least rnutually adjacent, said pump turbine being further constructed so that, when operating as a turbine, it operates within the entire fall head range.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Water Turbines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
US450222A 1973-03-16 1974-03-11 Pumped storage power plant Expired - Lifetime US3891860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2313095A DE2313095C2 (de) 1973-03-16 1973-03-16 Pumpspeicheranlage

Publications (1)

Publication Number Publication Date
US3891860A true US3891860A (en) 1975-06-24

Family

ID=5874943

Family Applications (1)

Application Number Title Priority Date Filing Date
US450222A Expired - Lifetime US3891860A (en) 1973-03-16 1974-03-11 Pumped storage power plant

Country Status (7)

Country Link
US (1) US3891860A (enrdf_load_stackoverflow)
JP (1) JPS50247A (enrdf_load_stackoverflow)
AT (1) AT328385B (enrdf_load_stackoverflow)
CA (1) CA985601A (enrdf_load_stackoverflow)
CH (1) CH591018A5 (enrdf_load_stackoverflow)
DE (1) DE2313095C2 (enrdf_load_stackoverflow)
ES (1) ES423807A1 (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077748A (en) * 1974-10-25 1978-03-07 Bbc Brown, Boveri & Company Limited Turbomachine plant comprising coupled gas turbine, synchronous electrical machine and compressor units having optional operating modes
US4085333A (en) * 1976-02-17 1978-04-18 Grise Frederick Gerard J Conservation of electrical energy
US4243892A (en) * 1978-09-11 1981-01-06 Asea Aktiebolag Energy-efficient fluid medium pumping system
US4318004A (en) * 1978-05-02 1982-03-02 Tokyo Shibaura Denki Kabushiki Kaisha Method of pumping up electric power generation and an apparatus therefor
US20140161586A1 (en) * 2011-06-22 2014-06-12 Voith Patent Gmbh Pump Turbine Plant
US8823195B2 (en) 2012-04-03 2014-09-02 Mark Robert John LEGACY Hydro electric energy generation and storage structure
US20190288517A1 (en) * 2018-03-16 2019-09-19 Uop Llc Consolidation and use of power recovered from a turbine in a process unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU39673B (en) * 1977-02-21 1985-03-20 Titovi Zavodi Litostroj Single-stage reversible pump turbine with a supplemental pump
JPH08284802A (ja) * 1995-04-17 1996-10-29 Kiyotatsu Fukai 第一種の永久機関

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163118A (en) * 1962-07-20 1964-12-29 Escher Wyss Ag Starting up a storage pump or pump-turbine
US3405278A (en) * 1965-08-19 1968-10-08 Gen Public Utilities Hydroelectric pump-turbine apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163118A (en) * 1962-07-20 1964-12-29 Escher Wyss Ag Starting up a storage pump or pump-turbine
US3405278A (en) * 1965-08-19 1968-10-08 Gen Public Utilities Hydroelectric pump-turbine apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077748A (en) * 1974-10-25 1978-03-07 Bbc Brown, Boveri & Company Limited Turbomachine plant comprising coupled gas turbine, synchronous electrical machine and compressor units having optional operating modes
US4085333A (en) * 1976-02-17 1978-04-18 Grise Frederick Gerard J Conservation of electrical energy
US4318004A (en) * 1978-05-02 1982-03-02 Tokyo Shibaura Denki Kabushiki Kaisha Method of pumping up electric power generation and an apparatus therefor
US4243892A (en) * 1978-09-11 1981-01-06 Asea Aktiebolag Energy-efficient fluid medium pumping system
US20140161586A1 (en) * 2011-06-22 2014-06-12 Voith Patent Gmbh Pump Turbine Plant
US9677535B2 (en) * 2011-06-22 2017-06-13 Voith Patent Gmbh Pump turbine plant
US8823195B2 (en) 2012-04-03 2014-09-02 Mark Robert John LEGACY Hydro electric energy generation and storage structure
US20190288517A1 (en) * 2018-03-16 2019-09-19 Uop Llc Consolidation and use of power recovered from a turbine in a process unit
US10811884B2 (en) * 2018-03-16 2020-10-20 Uop Llc Consolidation and use of power recovered from a turbine in a process unit

Also Published As

Publication number Publication date
ES423807A1 (es) 1976-05-01
ATA37574A (de) 1975-05-15
AT328385B (de) 1976-03-25
DE2313095C2 (de) 1974-11-28
CH591018A5 (enrdf_load_stackoverflow) 1977-08-31
CA985601A (en) 1976-03-16
JPS50247A (enrdf_load_stackoverflow) 1975-01-06
DE2313095B1 (enrdf_load_stackoverflow) 1974-04-25

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