JPS54138931A - Controlling method for pump hydraulic turbine - Google Patents

Controlling method for pump hydraulic turbine

Info

Publication number
JPS54138931A
JPS54138931A JP4658378A JP4658378A JPS54138931A JP S54138931 A JPS54138931 A JP S54138931A JP 4658378 A JP4658378 A JP 4658378A JP 4658378 A JP4658378 A JP 4658378A JP S54138931 A JPS54138931 A JP S54138931A
Authority
JP
Japan
Prior art keywords
pump hydraulic
hydraulic turbine
guide vane
turbine
negative pressure
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
JP4658378A
Other languages
Japanese (ja)
Inventor
Tsuyoshi Mizoguchi
Hideo Kanzaki
Mamoru Fukushima
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 JP4658378A priority Critical patent/JPS54138931A/en
Publication of JPS54138931A publication Critical patent/JPS54138931A/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

Abstract

PURPOSE: To prevent an accidental destruction of a branch water channel of an iron pipe water channel in a large-volume high-fall pumping-up power plant due to a negative pressure phenomenon appearing therein by constituting a controlling method for a pump hydraulic turbine such that a bypass valve is additonally provided to the turbine in order to attain a desired control of the turbine.
CONSTITUTION: When the load applied to a pump hydraulic turbine G/M1 is suddenly changed, such as at cutting off of the load, the pump hydraulic turbine quickly operates to close its guide vane whereupon a negative pressure phenomenon will appear depending upon such closing speed of the guide vane. Thus, it is important to close the guide vane as quickly as possible in order to ensure the safety of the main machines (the pump hydraulic turbine, a dynamotor). Accordingly, a bypass valve BV1 is opened at the same time with a guide vane control instruction, whereby water is allowed to flow into a diversion pipe L012 by way of the valve BV1 simultaneously with the closing of the guide vane. Thus, a negative pressure phenomenon around a runner of another pump hydraulic turbine G/M2 can be prevented by such water flow, and hence a serious accident which may lead to a destruction of the power plant can be prevented thereby.
COPYRIGHT: (C)1979,JPO&Japio
JP4658378A 1978-04-21 1978-04-21 Controlling method for pump hydraulic turbine Pending JPS54138931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4658378A JPS54138931A (en) 1978-04-21 1978-04-21 Controlling method for pump hydraulic turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4658378A JPS54138931A (en) 1978-04-21 1978-04-21 Controlling method for pump hydraulic turbine

Publications (1)

Publication Number Publication Date
JPS54138931A true JPS54138931A (en) 1979-10-27

Family

ID=12751313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4658378A Pending JPS54138931A (en) 1978-04-21 1978-04-21 Controlling method for pump hydraulic turbine

Country Status (1)

Country Link
JP (1) JPS54138931A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104040A (en) * 1973-02-12 1974-10-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104040A (en) * 1973-02-12 1974-10-02

Similar Documents

Publication Publication Date Title
JPS5440946A (en) Controlling method for pump waterwheel
JPS54151741A (en) Multi-stage hydraulic machine
JPS54144529A (en) Method and apparatus for pumping-up generation by high- efficiency operation of single-speed reversible pump water wheel
JPS54138931A (en) Controlling method for pump hydraulic turbine
JPS54108143A (en) Running control method of multistage hydraulic machinery
JPS54160936A (en) Small hydroelectric generating station
JPS54145827A (en) Pump water wheel control
JPS5634972A (en) Driving method of double stage pump hydraulic turbine
JPS54114651A (en) Running control in multi-stage hydraulic machines
JPS5652577A (en) Water discharge method out of penstock of hydraulic power plant
JPS56148685A (en) Control method for wheel with movable means
JPS52112035A (en) Method of controlling closed operation of hydraulic machine
JPS5696169A (en) Stopping method of pump in pumping-up power station
JPS5624201A (en) Flow rate control mechanism
JPS5257403A (en) Potential running control equipment for water supply pump driven by tu rbine
JPS5685011A (en) Controlling method for flow rate of river water
JPS5351346A (en) Operational method for pressure controller and effluent valve of hydraulic power plant
JPS5439790A (en) Pressure controller of reactor
JPS55134764A (en) Controlling device for flow rate of small hydraulic power generation
JPS54160935A (en) Small hydroelectric generating station
JPS56118572A (en) Method of controlling tandem system pumping-up power plant
JPS57212378A (en) Method of protecting water turbine
JPS5510057A (en) Pump-operation stopping method in pumping-up power plant
JPS5360483A (en) Output controling method for boiling water type atomic power plant
JPS5739416A (en) Controlling method for flow rate of water supply