WO2013175969A1 - Machine hydroélectrique et son procédé de commande - Google Patents

Machine hydroélectrique et son procédé de commande Download PDF

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Publication number
WO2013175969A1
WO2013175969A1 PCT/JP2013/063017 JP2013063017W WO2013175969A1 WO 2013175969 A1 WO2013175969 A1 WO 2013175969A1 JP 2013063017 W JP2013063017 W JP 2013063017W WO 2013175969 A1 WO2013175969 A1 WO 2013175969A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
hydraulic
flow rate
ring gate
pressure oil
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.)
Ceased
Application number
PCT/JP2013/063017
Other languages
English (en)
Japanese (ja)
Inventor
基伊 後藤
久幸 冨安
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to CN201380002153.3A priority Critical patent/CN103842643A/zh
Publication of WO2013175969A1 publication Critical patent/WO2013175969A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/406—Transmission of power through hydraulic systems
    • 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

  • Embodiments of the present invention relate to a hydraulic machine and a control method thereof.
  • the opening / closing operation of the ring gate is controlled by one or more hydraulic servo motors connected to the ring gate.
  • Each hydraulic servo motor is switched between pressure oil supply (oil supply) and pressure oil discharge (oil discharge) to the pressure oil device to control the operation direction of the hydraulic servo motor,
  • a switching valve for performing synchronous control for adjusting the operation amount of the servo motor is connected. The operation of this switching valve is controlled by an electrical signal from the control device.
  • FIG. 2 two pairs of hydraulic servo motors 8 are connected to the valve body 4a, and the two hydraulic servo motors 8 of each pair are arranged symmetrically with respect to the central axis of the valve body 4a.
  • the four hydraulic servomotors 8 in FIG. 2 are arranged at equal intervals (90-degree pitch) in the circumferential direction of the valve body 4a. With such an arrangement, it is possible to prevent the valve body 4a from being inclined and to smoothly raise or lower the valve body 4a.
  • Each hydraulic servo motor control unit 23 includes an electromagnetic switching valve 31 as an example of a first valve, a servo valve 32 as an example of a second valve, a first flow rate adjustment valve 33, and a second flow rate adjustment. And a valve 34.
  • the electromagnetic switching valve 31 of this embodiment is an on-off valve that can control whether or not pressure oil is supplied to the piston chamber communicated with the port P.
  • the opening and closing of the electromagnetic switching valve 31 is controlled based on an input signal from the control device 22.
  • the servo valve 32 is a switching valve for switching between oil supply and drainage for the corresponding hydraulic servo motor 8, and has a second rated flow rate equal to or lower than the first rated flow rate.
  • the ratio between the first rated flow rate and the second rated flow rate is, for example, 95% to 5%.
  • the servo valve 32 includes a port P connected to the pressure oil supply line 24, a port T connected to the pressure oil recovery line 25, and a corresponding open side piston chamber of the hydraulic servo motor 8, similar to the electromagnetic switching valve 31. 16 and a port B connected to the closed piston chamber 17 of the corresponding hydraulic servomotor 8.
  • the servo valve 32 is switched to one of the first to third states based on a command signal from the control device 22.
  • the ports P and T are communicated with the open side piston chamber 16 (port A) and the close side piston chamber 17 (port B), respectively.
  • the ports P and T communicate with the closed piston chamber 17 (port B) and the open piston chamber 16 (port A), respectively.
  • neither the ports P and T are communicated with the open-side piston chamber 16 and the closed-side piston chamber 17.
  • each hydraulic servo motor control unit 23 of the present embodiment may include three or more switching valves for pressure oil supply / discharge control.
  • each hydraulic servo motor control unit 23 may include a first valve with a large flow rate, a second valve with a medium flow rate, and a third valve with a small flow rate.
  • FIG. 3 is a graph for explaining the advantages of the hydraulic machine according to the first embodiment.
  • the control device 22 of the present embodiment is configured such that the opening degree of the ring gate 4 is between the fully open position and the first open position X or the second open position Y and the fully open position.
  • the opening / closing speed of the ring gate 4 when it is between is lower than the opening / closing speed of the ring gate 4 when the opening of the ring gate 4 is between the first opening X and the second opening Y.
  • FIG. 5A shows a change over time of the opening degree of the ring gate 4 of the first embodiment.
  • FIGS. 5 (b) and FIG. 5 (c) respectively show changes over time in the flow rate q of the servo valve 32 and the flow rate Q of the electromagnetic switching valve 31 corresponding to the opening of the ring gate 4 in FIG. 5 (a).
  • FIGS. 5D and 5E respectively show the servo valve 32 corresponding to the opening of the ring gate 4 in FIG. 5A when the electromagnetic switching valve 31 is replaced with a proportional control valve. The time change of the flow rate q and the flow rate Q of the proportional control valve is shown.
  • the difference calculated by the first adder / subtractor 115 is input to the change rate determination unit 116.
  • the change rate determination unit 116 determines the change rate of the stroke of the ring gate 5 based on this difference.
  • the change rate determined by the change rate determination unit 116 is input to the integral calculation unit 117.
  • the integral calculation unit 117 integrates this change rate over the operation time, and calculates the stroke command position 118.
  • the command position calculation block 101 further includes a first analog output converter 119.
  • a first analog output converter 119 When the ring gate 4 is moved in the opening direction, the fully open contact 113 is closed and the fully open target set value is input to the first analog output converter 119.
  • the fully closed contact 114 is closed, and the fully closed target set value is input to the first analog output converter 119.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Water Turbines (AREA)

Abstract

[Problème] L'invention a pour objet de réaliser une machine hydroélectrique capable d'améliorer la précision de la commande d'actionnement d'une vanne-fourreau et également capable d'améliorer la vitesse d'actionnement. [Solution] Selon un mode de réalisation, une machine hydroélectrique comporte une vanne-fourreau placée entre une aube avant-directrice placée à la périphérie intérieure d'une enveloppe dans laquelle entre de l'eau, et une aube directrice placée à la périphérie intérieure de l'aube avant-directrice. La machine comporte également au moins un servomoteur hydraulique servant à actionner la vanne-fourreau, et un dispositif à huile sous pression servant à fournir de l'huile sous pression au servomoteur hydraulique et à récupérer l'huile sous pression expulsée du servomoteur hydraulique. La machine comporte également au moins une première soupape qui est caractérisée par un premier débit nominal et qui alterne entre l'alimentation en huile et l'évacuation d'huile vers et depuis le servomoteur hydraulique correspondant, et au moins une deuxième soupape qui est caractérisée par un deuxième débit nominal inférieur ou égal au premier débit nominal et qui alterne entre l'alimentation en huile et l'évacuation d'huile vers et depuis le servomoteur hydraulique correspondant. La machine comporte également un dispositif de commande servant à commander les première et deuxième soupapes.
PCT/JP2013/063017 2012-05-21 2013-05-09 Machine hydroélectrique et son procédé de commande Ceased WO2013175969A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380002153.3A CN103842643A (zh) 2012-05-21 2013-05-09 水力机械及其控制方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012115591A JP2013241890A (ja) 2012-05-21 2012-05-21 水力機械およびその制御方法
JP2012-115591 2012-05-21

Publications (1)

Publication Number Publication Date
WO2013175969A1 true WO2013175969A1 (fr) 2013-11-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/063017 Ceased WO2013175969A1 (fr) 2012-05-21 2013-05-09 Machine hydroélectrique et son procédé de commande

Country Status (3)

Country Link
JP (1) JP2013241890A (fr)
CN (1) CN103842643A (fr)
WO (1) WO2013175969A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102025102960B3 (de) * 2025-01-28 2026-02-12 Voith Patent Gmbh Vorrichtung zur Steuerung eines Ring-Gates einer Wasserkraftanlage und Wasserkraftanlage mit einer solchen Vorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372102U (fr) * 1989-11-17 1991-07-22
JPH10115280A (ja) * 1996-10-09 1998-05-06 Meidensha Corp 調速機
JPH1182276A (ja) * 1997-09-11 1999-03-26 Toshiba Eng Co Ltd 水車入口弁の制御装置
JP2002276526A (ja) * 2001-03-22 2002-09-25 Toshiba Corp 水力機械の電動式水口操作装置および水口操作方法
JP2011122469A (ja) * 2009-12-08 2011-06-23 Toshiba Corp リングゲート制御システムおよびリングゲート制御方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100578010C (zh) * 2005-09-27 2010-01-06 四川东风电机厂有限公司 水轮发电机组阀块刹车装置及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372102U (fr) * 1989-11-17 1991-07-22
JPH10115280A (ja) * 1996-10-09 1998-05-06 Meidensha Corp 調速機
JPH1182276A (ja) * 1997-09-11 1999-03-26 Toshiba Eng Co Ltd 水車入口弁の制御装置
JP2002276526A (ja) * 2001-03-22 2002-09-25 Toshiba Corp 水力機械の電動式水口操作装置および水口操作方法
JP2011122469A (ja) * 2009-12-08 2011-06-23 Toshiba Corp リングゲート制御システムおよびリングゲート制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102025102960B3 (de) * 2025-01-28 2026-02-12 Voith Patent Gmbh Vorrichtung zur Steuerung eines Ring-Gates einer Wasserkraftanlage und Wasserkraftanlage mit einer solchen Vorrichtung

Also Published As

Publication number Publication date
CN103842643A (zh) 2014-06-04
JP2013241890A (ja) 2013-12-05

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