JPS5457043A - Guide vane control method of pump water turbine - Google Patents

Guide vane control method of pump water turbine

Info

Publication number
JPS5457043A
JPS5457043A JP12244977A JP12244977A JPS5457043A JP S5457043 A JPS5457043 A JP S5457043A JP 12244977 A JP12244977 A JP 12244977A JP 12244977 A JP12244977 A JP 12244977A JP S5457043 A JPS5457043 A JP S5457043A
Authority
JP
Japan
Prior art keywords
guide vane
water turbine
curve characteristics
control method
breaking
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.)
Pending
Application number
JP12244977A
Other languages
Japanese (ja)
Inventor
Hisao Kuwabara
Hiroshi Okumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12244977A priority Critical patent/JPS5457043A/en
Priority to BG040183A priority patent/BG41828A3/en
Publication of JPS5457043A publication Critical patent/JPS5457043A/en
Priority to US06/183,374 priority patent/US4382745A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Control Of Water Turbines (AREA)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE: To reduce the water pressure rise in the water channel on the upstream and water pressure fall and rise in the downstream at the breaking the load, control method of guide vane at the breaking the load of the pump water turbine which S-curve characteristics in the range of water turbine is necessary.
CONSTITUTION: This guide vane control method is operated to prevent abnormal water pressure variation in the S-curve characteristics and around it, in the pump water turbine having characteristcs which water turbine flow Q and produced torque T lowers as shown in the graph with lowering S-curve characteristics, that is, NI=N/H1/2 (where; N shows rotating speed, H shows effecitve head), when dQ dN (but Q1=Q/H1/2) is smaller than certain negatibe valve at the breaking the load, the guide vane is shut loosely after that, above shutting loosely is continued during chasing S-curve characteristics, afer the S-curve characteristics has been chased, that is, when the valur dQ1/dN1 is shiftted from positive value to the negative value, the guide vane is suddenly shut
COPYRIGHT: (C)1979,JPO&Japio
JP12244977A 1977-05-20 1977-10-14 Guide vane control method of pump water turbine Pending JPS5457043A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP12244977A JPS5457043A (en) 1977-10-14 1977-10-14 Guide vane control method of pump water turbine
BG040183A BG41828A3 (en) 1977-10-14 1978-06-23 Method for control of directing blades of reversive pump- turbine for pump- accumulating water electric plant
US06/183,374 US4382745A (en) 1977-05-20 1980-09-02 Method of controlling wicket gates of a pump-turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12244977A JPS5457043A (en) 1977-10-14 1977-10-14 Guide vane control method of pump water turbine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP58242219A Division JPS59131775A (en) 1983-12-23 1983-12-23 Control for guide vane of pump water wheel

Publications (1)

Publication Number Publication Date
JPS5457043A true JPS5457043A (en) 1979-05-08

Family

ID=14836111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12244977A Pending JPS5457043A (en) 1977-05-20 1977-10-14 Guide vane control method of pump water turbine

Country Status (2)

Country Link
JP (1) JPS5457043A (en)
BG (1) BG41828A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000928A1 (en) * 1978-04-13 1979-11-15 Hitachi Ltd Method of controlling pumping water-wheel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000928A1 (en) * 1978-04-13 1979-11-15 Hitachi Ltd Method of controlling pumping water-wheel

Also Published As

Publication number Publication date
BG41828A3 (en) 1987-08-14

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