EP2593668A2 - Water power ram-pressure machine - Google Patents
Water power ram-pressure machineInfo
- Publication number
- EP2593668A2 EP2593668A2 EP11738388.5A EP11738388A EP2593668A2 EP 2593668 A2 EP2593668 A2 EP 2593668A2 EP 11738388 A EP11738388 A EP 11738388A EP 2593668 A2 EP2593668 A2 EP 2593668A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water level
- motor
- machine
- generator
- dynamic 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.)
- Withdrawn
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
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
- F03B15/08—Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
-
- 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
- F03B7/00—Water wheels
-
- 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
- F03B15/14—Regulating, i.e. acting automatically by or of water level
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/10—Special adaptation of control arrangements for generators for water-driven 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
- the invention relates to a hydro-dynamic pressure machine with at least one impeller having a hub and associated blades, and which defines in operation a water level as the difference between an upper water level and an underwater level, with an electric motor-generator machine coupled to the impeller, and with a control device for regulating the headwater level.
- Hydropower dynamic pressure machines are known from AT 404 973 B and AT 501 575 AI.
- the impeller is arranged transversely to the flow direction in a channel.
- the hub of the impeller can replace a weir, which in hydraulic engineering is understood to mean a reservoir that closes off a flow region.
- weirs can be overflowed or flowed through as required, the section of the channel in the direction of flow above the weir being referred to as the upper water and the section of the channel below the weir being referred to as underwater.
- Swallowing capacity used both the flow velocity of the channel and the potential level corresponding to the water level for energy production.
- the output power and the achievable efficiency depend substantially on the headwater level, ie on the upstream water level of the channel relative to the hub of the impeller.
- the headwater level affects the amount of water available to drive the impeller. It has already been proposed (http://de.wikipedia.org/wiki/Staudruckmaschine) to regulate the upper water level in order to constantly adjust the current upper water level to the upper water level target value.
- JP 2004 183618 A describes a control system for a hydropower plant, in which the supply line for a water turbine is connected at the input side or at the output side respectively to a pressure sensor in order to determine the differential pressure between the input and the output of the turbine.
- a pressure sensor in order to determine the differential pressure between the input and the output of the turbine.
- means for detecting the inflowing water are present.
- the signals from the pressure sensors, as well as the flowmeter signal serve as input to a control unit that adjusts the system to the optimal operating point of the turbine.
- a power plant with a water turbine which is connected to an alternator.
- a speed control is provided, which supplies a constant generator voltage according to magnitude and frequency.
- the signals from pressure, speed and power transmitters are transmitted as input to a microprocessor that controls an electrical or electronic control device.
- the microprocessor may be supplied with factors such as back pressure and drop height, turbine characteristic and -Istmos ⁇ figure, generator torque performance wel ⁇ surface is adjusted with the control arrangement in order to calculate the optimum for the respective conditions of speed.
- EP 230 636 AI deals with a set of machines consisting of a water-driven turbine and a generator that feeds a network of constant frequency via an inverter.
- a Dreh ⁇ number setpoint is given, which by means of replication the turbine characteristic curve in dependence on turbine characteristics, in particular stator or nozzle opening and opening of the impeller blades, is determined.
- the upper water or underwater level can be adjusted by means of a controller to a desired setpoint, for which purpose the turbine parameters mentioned are used as control signals.
- control device is connected to the motor-generator machine to regulate the speed of the impeller to maintain a predetermined upper water level by controlling the braking torque of the motor-generator machine.
- the amount of water flowing from the upper water through the system into the underwater per unit of time - usually referred to as swallowing capacity - depends on the speed of the impeller. Since the water flow is expediently not offered a possibility to avoid the impeller arranged across the entire channel, the entire water flow flows through the dynamic pressure machine.
- An increase in the speed of the impeller increases the absorption capacity of the dynamic pressure machine, with a larger amount of water is transported by the blades on the underwater side and thus the head water level is reduced; conversely, a reduction in the rotational speed of the impeller results in a lower absorption capacity of the Staudruckma ⁇ machine, so that less water flows through the back-pressure machine, and increases in the wake of the upstream water level.
- the speed of the impeller is controlled.
- the braking torque of the motor-generator machine is continuously adjusted.
- the control device the braking torque of the generator.
- the control device reduces the braking torque of the motor-generator machine.
- the motor-generator machine is preferably designed as an asynchronous machine, which is connected directly or via a gear to the impeller.
- the direct influence of the control device on the braking torque of the motor-generator machine ensures the precise compliance with the specified head water level.
- By controlling the braking torque of the motor-generator machine can be reacted quickly and sensitively to an increase or decrease in the volume flow reached to the dynamic pressure machine.
- the dynamic pressure machine is therefore particularly well suited for automatic operation even in remote side arms or smaller channels.
- the control device has a preferably designed as a programmable logic controller (PLC) controller which is connected to a preferably designed as a frequency converter means for influencing the torque of the motor-generator machine.
- PLC programmable logic controller
- the programmable logic controller is a modular solution that can be flexibly adapted to the requirements of the respective dynamic pressure machine and, if necessary, can be easily reprogrammed.
- a frequency converter is useful, which serves as an actuator for a supplied by the controller of the controller speed specification.
- the frequency converter allows to adjust the speed of the Mo ⁇ tor-generator machine continuously.
- the frequency converter is able to transmit energy during braking of the motor-generator machine in a DC circuit, which is advantageously arranged between an input side rectifier and an inverter fed from the DC link.
- the energy from the DC link of the regenerative frequency converter can be used further stored or transferred to a connected network.
- the use of the frequency converter for influencing the brem ⁇ send torque is particularly favorable in conjunction with an asynchronous;
- the asynchronous machine is a cost-effective and low-maintenance version of the motor-generator machine, especially for smaller dynamic pressure machines.
- the control device has a measuring element for detecting the upper water level. Accordingly, the measuring element can measure the upper water level during operation, which can serve as an input variable for the control loop.
- an ultrasonic sensor is provided as the measuring element.
- Such an ultrasonic sensor allows a continuous, non-contact measurement of the headwater level.
- the measurement of the upper ⁇ water level based on a transit time measurement and its reflected on the surface of the channel echo is detected at a transducer of the sensor, and preferably used by a microprocessor to determine the upper water level of an emitted by an ultrasonic transducer of the sensor ultrasonic pulse.
- Upper water level can be closed.
- other types of non-contact upper water level measuring elements ren conceivable, however, that, for example, on a
- a particular hydrostatic level gauge is provided as a measuring ⁇ element.
- the hydrostatic level measurement is based on the detection of the hydrostatic pressure, which is generated by the height of the liquid column, ie here the upper water level. Between the measured hydrostatic pressure and the surface There is a well-known connection between the water level, which is used to record the upper water level.
- the water level which is used to record the upper water level.
- the control device from a control difference between a measured actual value of the head water level and a predetermined target value of the head water level determines a manipulated variable for the speed of the motor-generator machine, which by means of Device for influencing the torque of the motor-generator machine is adjustable.
- the head water level is continuously measured and compared with the preset target value of the headwater level.
- the controller ermit ⁇ telt from a control difference between the actual value or the target value of the upper water level, the speed setting for the motor-generator machine that is set by the acting as an actuator device for influencing the torque of the motor-generator machine , If the actual value of the upper water level is higher than the predetermined target value, the
- the motor-generator machine is preferably connected to a transmission which translates the comparatively low speed of the impeller into a higher speed which is more expedient for utilization in the motor-generator machine.
- the transmission may comprise an over ⁇ reduction ratio between the rotor-side and the generator side of 80 to 180 when the generator pole pairs is two, and the synchronous rotational speed is in particular about 1500 U / min.
- the gear ratio is correspondingly ge ⁇ ringer.
- the control device has a torque-measuring device for detecting the torque of the motor-generator machine.
- the continuous detection of torque and speed of the motor-generator machine makes it possible to dispense during operation on a direct measurement of the head water level, as can be concluded by knowing the speed and torque on the current head water level.
- electrical operating parameters of the motor-generator machine such as current, voltage or three-phase frequency, are preferably detected, from which the torque is determined.
- the controller has a memory in which a characteristic of the head water level is stored as a function of speed and torque of the motor-generator machine, so that the Upper water level is indirectly controlled by the detection of torque and speed of the motor-generator machine.
- the associated value of the upper water level is known for each combination of speed and torque of the motor-generator machine.
- These data are stored in the form of a characteristic in the memory of the controller.
- the continuous monitoring of torque and speed of the motor-generator machine therefore makes it possible to indirectly draw conclusions about the current upper water level, which therefore does not necessarily have to be measured.
- the actual values of torque and rotational speed measured during operation can be compared with at least one corresponding desired value for the rotational speed, which is set by the device for influencing the braking torque of the motor-generator machine.
- the memory contains at least one characteristic curve determined in a complete test run. Accordingly, the dynamic pressure machine can be completely measured, for example, during commissioning, wherein the measurement data for speed and torque of the motor-generator-machine is assigned to the respective corresponding upper water level. From these measuring points, the characteristic is created, which is stored in the memory of the controller. In operation, the controller determines on the basis of the characteristic curve of the actual values of speed and torque is compared with the pre give ⁇ NEN target value of the upper water level and adjusted by regulating the braking torque of the motor-generator machine current upper water level.
- a structurally simple device for measuring the head water level is provided when the measuring element for detecting the head water level is connected to a frame provided for supporting the wheel.
- the measuring element is preferably with an upper in operation substantially
- the measuring element can also be stationary, for example, on a stationary machine frame or on a stationary structure of the channel, in which the dynamic pressure machine is arranged to be attached.
- a further measuring element may be present, which measures the underwater level. In the case of a non-contact measuring
- Measuring element is to ensure that the measurement signal can pass unhindered to the water surface and back. This is preferably achieved by a rod-shaped suspension, which is in particular cantilevered on the frame or on the machine frame.
- Figure 1 is a perspective view of a storage jam ⁇ printing machine according to the invention with a churning impeller whose speed is adjustable to maintain a predetermined headwater level.
- Figure 2 is a schematic representation of a control device for controlling the rotational speed of the impeller, which has according to one embodiment of the invention ⁇ a measuring element for detecting the upper water level.
- Fig. 3 is a simple block diagram for illustrating the in Fig. 2 control device shown
- Fig. 4 is a more detailed block diagram of the control device shown in Figs. 2 and 3;
- Fig. 5 is a representation corresponding to Fig 2 from another ⁇ guide die of the control device, wherein the torque of the motor-generator machine is measured.
- FIG. 6 shows a diagram with a characteristic curve of the impeller measured in a test run.
- a hydro-dynamic pressure machine 1 is shown, which is arranged transversely to a flow direction 2 'of a schematically drawn in Fig. 2 channel 2.
- the dynamic pressure machine 1 extends over the entire width of the channel 2, so that the entire water flow is forced to pass through the dynamic pressure machine 1.
- the dynamic pressure machine 1 has an impeller 3 with a cylindrical hub 4, on which blades 5 are fixed at regular angular intervals.
- the rotation ⁇ direction of the impeller 3 is indicated by an arrow 6.
- the impeller 3 defines in operation, a water level d is the Diffe ⁇ ence between an upper water level 8 and a lower water level 9 in solid form; Accordingly, the dynamic pressure machine 1 forms a weir, which damming the channel 2 with the specified water level height d.
- the impeller 3 is coupled to an electric motor-generator machine 10 (not shown in FIG. 1); According to the respective arrangement of the motor-generator machine 10, a suitable transmission between the impeller 3 and the motor-generator machine 10 is provided.
- the braking torque of the motor-generator machine 10 is used to convert the kinetic energy of the impeller 3 into electrical energy.
- the energy obtained can be stored in an energy storage ⁇ or fed into a (not shown) power grid.
- the dynamic pressure machine 1 is characterized by a particularly efficient utilization of water power by both the flow velocity of the channel 2 and the po ⁇ tentielle energy of the water head height d are converted into electrical energy.
- the illustrated dynamic pressure machine 1 is in particular These are suitable for use in smaller channels 2, which can hardly be profitably used for energy generation with other types of hydroelectric power plants.
- the dynamic pressure machine 1 has a high efficiency with high absorption capacity.
- a volume flow Q is supplied to , leaving the dynamic pressure machine 1 as a flow Q from .
- the water level height d remains constant.
- the water level d increases when more water is added than discharged; conversely, an increase in the volume flow Q derived from leads to a fall in the water level d.
- the derived volume flow Q ab can be adjusted by increasing or decreasing the absorption capacity of the dynamic pressure machine 1, which is determined by a rotational speed n : of the impeller 3.
- fluctuations in water level may occur for a variety of reasons, such as when upstream locks are opened.
- the upper water level 8 should be kept at a predetermined level, which is expedient for achieving the desired power or optimum efficiency.
- a control device 11 is provided in the dynamic pressure machine 1, which is connected to the motor-generator ⁇ tor-machine 10 (see Fig. 2).
- the speed n 2 of the impeller 3 is controlled by adjusting the braking torque of the motor-generator machine 10.
- Fig. 2 the scheme of a first embodiment of the control device 11 is illustrated, in which the upper water level 8 is monitored continuously.
- a measuring element 12 is provided for detecting the upper water level.
- a further measuring element 12 ' is provided, which measures the underwater level 9.
- the measuring elements 12, 12 ' are expediently used as ul traschallsensoren 13 formed; However, other types of measuring elements 12, 12 'may be provided, for example (not shown in the figures) hydrostatic Gresmess ⁇ devices.
- the measuring member 12 (and accordingly the measuring element 12 ') arranged at the free end of a rod-shaped hanger 25 at an upper Rah ⁇ menteil 26' overlying the impeller of a frame 3 is mounted 26th
- the frame 26 is arranged vertically adjustable in a stationary machine frame 27.
- the measuring element 12 delivers the value of the measured upper water level 8 to an elec ⁇ tronic control unit 14 which is connected to the motor-generator machine 10 to a comparison with the predetermined value for the upper water level 8, a speed n 2 of the motor-generator -Machine 10 by regulating the braking torque to re ⁇ rules.
- the electronic control unit 14 has a controller 15 with a programmable logic controller, hereinafter referred to as PLC, 16, which is connected to a device 17 for influencing the braking torque of the motor-generator machine 10 shown in FIG Embodiment is given by a frequency converter 18.
- PLC programmable logic controller
- the measured by means of the ultrasonic sensor 13 upstream water level 8 serves as a ⁇ input variable for the PLC 16 in which the target value for the upper water level 8 has been stored, which is continuously compared with the actual value of the upper water level.
- a speed setting which is set to the motor-generator machine 10 is so n n from the determined control difference between the actual value and the predetermined target value of the upper water level 8 intended for the frequency converter 18.
- a speed-Messein ⁇ device 19 is provided which continuously the actual value of the Mo ⁇ tor speed n is measured, and to the frequency converter 18
- the n n iEt the actual value of the speed: n with the current supplied by the PLC 16 so desired value of the rotational speed n n; compares and adjusts accordingly.
- FIG. 4 shows the control circuit of the control device 11 explained above with reference to FIGS. 2 and 3 in greater detail.
- the illustrated by a dashed frame controlled system includes the impeller 3, which via a gear 20 with the motor-generator machine 10 is connected.
- the transmission 20 translates the speed n l of the impeller 3 (in revolutions per minute [rpm]) into a higher speed n 2 [rpm] suitable for the motor-generator machine 10.
- an impeller-side torque M x in Newton meters [Nm]
- the motor-generator machine 10 provides in generator operation a current I [A], expressed in amperes, with a frequency F [Hz], indicated in Hertz.
- variable volume flow Q at [m 3 / s], expressed in cubic meters per second, acts as a disturbance d 'on the upper water level 8, which represents the control variable H [m], generally denoted by y, in meters.
- the feedback of the control loop comprises the measuring element 12 for
- Detecting the actual value of H is the upper water level 8, which is to the upper water level is compared to 8 to the set value H to a control difference e as the difference between the actual value of H is the upper water level 8 and the set value H to the upper water level 8 to determine which control difference e is supplied to the controller 15 of the electronic control unit 14.
- the controller 15 which is preferably designed as a programmable logic controller 16
- a characteristic curve for the head water level 8 is stored as a function of the rotational speed n 2 [rpm] of the rotor 3, from which the speed specification for the engine generator shown in FIG. Machine 10 is determined.
- the speed occurring as a control variable u is transmitted to the device 17, which influences the braking torque of the motor-generator machine 10.
- the device 17, ie in particular the frequency converter 18, thus forms the actuator of the control loop, wherein the manipulated variable u R is the speed n : the motor-generator-machine 10, for which a control value is continuously specified.
- FIG. 5 an alternative embodiment of the control device 11 is shown schematically, which manages without direct detection of the upper ⁇ water level 8.
- the electronic control unit 14 has a memory 21 in which a characteristic of the head water level 8 in dependence on speed n : and torque M of the motor-generator ⁇ tor machine 10 is stored.
- the torque M : of the motor-generator machine 10 is continuously detected by means of a torque-measuring device 22; for measuring the torque M :: expediently electrical operating parameters (current, voltage, three-phase frequency, etc.) of the motor-generator machine 10 is used. From the current detection of torque M 2 and speed n 2 of the motor-generator machine 10 is indirectly closed to the upper water level 8.
- the upper water level 8 as a function of torque M 2 and speed n 2 of the motor-generator machine 10 can be displayed.
- the relationship between the measured parameters torque M 2 and speed n 2 of the motor-generator machine 10 and the upper water level 8 is advantageously obtained in a test run, in which the characteristic of the dynamic pressure machine 1 is received.
- the controller 15 uses the characteristic stored in the memory 21 to regulate the speed n 2 of the motor-generator-machine 10, which is geared down into the rotational speed n x of the rotor 3 via the gear 20.
- the frequency converter 18 can be used analogously to the control via the direct detection of the head water level 8.
- the measurement of the head water level 8 can basically be dispensed with if the relationship between the relevant variables of the motor-generator machine 10, ie speed n 2 and torque M 2 , and the head water level 8 is known.
- the relevant variables of the motor-generator machine 10 ie speed n 2 and torque M 2
- the head water level 8 is known.
- FIG. 6 shows an example of a characteristic curve determined in a test run, from which the relationship between the torque M] [Nm] plotted on the ordinate and the rotational speed r.sub.j [rpm] of the impeller 3 plotted on the abscissa can be seen is. Accordingly, the largest torque Mi is achieved when the impeller 3 is stationary or the speed ni is zero. The higher the speed n ! is the impeller 3, the greater friction and Verwirbelungszee, so that the submitge ⁇ bene torque i decreases and finally disappears at a certain value for the speed nj.
- the measured curve shown was taken at a water level d of 2 meters.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Water Turbines (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1195/2010A AT510096B1 (en) | 2010-07-14 | 2010-07-14 | HYDRO POWER JAM PRESS |
PCT/AT2011/000300 WO2012006647A2 (en) | 2010-07-14 | 2011-07-14 | Water power ram-pressure machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2593668A2 true EP2593668A2 (en) | 2013-05-22 |
Family
ID=44629347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11738388.5A Withdrawn EP2593668A2 (en) | 2010-07-14 | 2011-07-14 | Water power ram-pressure machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2593668A2 (en) |
AT (1) | AT510096B1 (en) |
WO (1) | WO2012006647A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140126750A (en) * | 2012-02-18 | 2014-10-31 | 하이드로볼츠, 인코퍼레이티드 | Turbine system for generating power from a flow of liquid, and related systems and methods |
CN104454295B (en) * | 2014-07-25 | 2017-07-04 | 刘光 | Electricity generation system |
JP6025945B1 (en) * | 2015-09-04 | 2016-11-16 | 秀樹 中込 | Water priority control method |
CN108846247B (en) * | 2018-08-08 | 2022-06-07 | 天津大学 | Coordinate transformation method for electromagnetic transient simulation acceleration of power converter system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1026331A (en) * | 1949-10-29 | 1953-04-27 | Bbc Brown Boveri & Cie | Device for operating hydraulic power plants |
DE3438893A1 (en) * | 1984-10-24 | 1986-04-24 | Arno Dipl.-Ing. 6301 Rabenau Eichmann | Power generating system |
DE3601288A1 (en) * | 1986-01-17 | 1987-07-23 | Siemens Ag | WATER-DRIVEN MACHINE SET WITH EFFICIENCY OPTIMUM SPECIFICATION OF THE SPEED SETPOINT |
AT404973B (en) | 1997-04-01 | 1999-04-26 | Brinnich Adolf | HYDROPOWER PRESSURE MACHINE |
JP4456807B2 (en) * | 2002-12-06 | 2010-04-28 | 株式会社日立産機システム | Turbine generator |
AT501575A1 (en) * | 2005-12-27 | 2006-09-15 | Brinnich Adolf | HYDRO POWER JAM PRESS |
AT509497B1 (en) * | 2010-03-02 | 2018-09-15 | Astra Vermoegens Und Beteiligungsverwaltungsgesellschaft Mbh | WATER ENGINE |
-
2010
- 2010-07-14 AT ATA1195/2010A patent/AT510096B1/en not_active IP Right Cessation
-
2011
- 2011-07-14 WO PCT/AT2011/000300 patent/WO2012006647A2/en active Application Filing
- 2011-07-14 EP EP11738388.5A patent/EP2593668A2/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2012006647A2 * |
Also Published As
Publication number | Publication date |
---|---|
AT510096A1 (en) | 2012-01-15 |
WO2012006647A2 (en) | 2012-01-19 |
AT510096B1 (en) | 2018-03-15 |
WO2012006647A3 (en) | 2012-05-31 |
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