WO2017084792A1 - Système d'accumulation d'énergie - Google Patents

Système d'accumulation d'énergie Download PDF

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Publication number
WO2017084792A1
WO2017084792A1 PCT/EP2016/072612 EP2016072612W WO2017084792A1 WO 2017084792 A1 WO2017084792 A1 WO 2017084792A1 EP 2016072612 W EP2016072612 W EP 2016072612W WO 2017084792 A1 WO2017084792 A1 WO 2017084792A1
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WO
WIPO (PCT)
Prior art keywords
gas
hydraulic
pneumatic
storage system
energy storage
Prior art date
Application number
PCT/EP2016/072612
Other languages
German (de)
English (en)
Inventor
Dirk Vahle
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017084792A1 publication Critical patent/WO2017084792A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/003—Systems for storing electric energy in the form of hydraulic energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20569—Type of pump capable of working as pump and motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/62—Cooling or heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

Definitions

  • the invention relates to an energy storage system for buffering electrical energy with an electric machine drivingly connected to a hydraulic machine, and to a pneumatic-hydraulic piston-cylinder assembly interposed between valve means between the hydraulic machine and a gas storage device.
  • the invention further relates to a method for operating such an energy storage system.
  • the invention also relates to a system for buffering electrical energy with such an energy storage system.
  • Piston cylinder arrangement at least two cylinders, each with one
  • Amplifier arrangements are used, in which at least one Accumulator and at least one amplifier with a high-pressure gas storage reservoir is in communication, wherein a fluidic machine is coupled on a fluid side with an electric machine. Disclosure of the invention
  • the object of the invention is the storage of electrical energy with an electric machine, which is drivingly connected to a hydraulic machine, and with a pneumatic-hydraulic
  • Piston cylinder arrangement which is arranged with the interposition of valve means between the hydraulic machine and a gas storage device, in particular with regard to the space requirement, the efficiency and / or with regard to thermodynamic losses to optimize.
  • the object is achieved in an energy storage system for temporarily storing electrical energy with an electric machine, which is drivingly connected to a hydraulic machine, and with a pneumatic-hydraulic piston-cylinder arrangement, which is arranged with the interposition of valve means between the hydraulic machine and a gas storage device, thereby achieved that the pneumatic-hydraulic
  • Piston cylinder assembly comprises at least one gas piston pump having two pneumatic connections and two hydraulic connections, the lower
  • Intermediate circuit of a hydraulic valve device with the hydraulic machine can be connected or connected.
  • the electric machine can be operated as an electric motor or as a generator.
  • Machine can be operated as a hydraulic pump or as a hydraulic motor.
  • the at least one gas piston pump can be provided in a simple manner, a very efficient compressed air storage system for electrical energy.
  • the energy storage system can by compressing gas, in particular ambient air, pneumatic energy in one
  • Gas storage device are stored.
  • the stored pneumatic energy in particular the stored air or compressed air, relaxed in the environment and drives the hydraulic machine operated as a hydraulic motor and the connected thereto acting as a generator electric machine.
  • the generator returns the generated electrical energy to a consumer.
  • the at least one gas piston pump is an air compressor, which is driven by hydraulic pressure, in particular hydraulic oil pressure, which in turn is provided by the working as a hydraulic pump hydraulic machine.
  • gas in particular the air
  • gas in particular air
  • Pneumatic connections or the hydraulic connections are assigned, conveying and suction areas of the gas piston pump can be operated alternately from one to the other side of the gas piston pump.
  • Gas storage device drained via the gas piston pump.
  • a hydraulic fluid in a double piston of the gas piston pump can then be driven in a simple manner operating as a hydraulic motor hydraulic machine.
  • Pneumatic energy are given over the working as an electric generator electric machine in the form of electrical energy back to the consumer.
  • the control or reversing takes place by means of suitable hydraulic and pneumatic switching valves.
  • a preferred embodiment of the energy storage system is characterized in that the gas piston pump comprises two separated by a separating element inner hydraulic cylinder chambers, which are separated by two pistons of outer pneumatic cylinder chambers, which
  • Gas storage device or an environment connectable or connected This allows a simple forced return of the piston of the gas piston pump in a simple manner.
  • Gas piston pump is hydraulically sealed in itself.
  • Hydraulic cylinder chambers and the pneumatic cylinder chambers in combination with the two pistons and the separator in the gas piston pump allows a simple system design.
  • a particularly compact design with relatively few control valves is possible.
  • By targeted control of the control valves unwanted energy losses in the thermodynamic gas process can be kept low.
  • a further preferred exemplary embodiment of the energy storage system is characterized in that the two pistons are coupled to one another by a piston rod which extends through the separating element such that a forced return of the pistons results during operation of the gas piston pump.
  • the separating element is designed, for example, as a partition in a cylinder in which the pistons coupled to one another by the piston rod are guided to and fro. The pistons limit with mutually facing piston surfaces, the hydraulic cylinder chambers through the
  • the cylinder of the gas piston pump has, for example, substantially the shape of a straight, closed hollow cylinder.
  • Throttle check valves can be regulated or unregulated.
  • the throttle check valves can be particularly advantageous to dispense with a mutual control of the pneumatic valve devices.
  • the throttle check valves provide the advantage that the
  • Pneumatic valve devices can remain open during a relaxation process.
  • Another preferred embodiment of the energy storage system is characterized in that the gas storage device a gas storage which is surrounded by a temperature storage system.
  • Gas storage in particular air storage, is advantageously located in a temperature storage system of a liquid or solid material.
  • the temperature storage system is advantageous to heat of compression
  • the temperature storage system returns the stored
  • a further preferred embodiment of the energy storage system is characterized in that the gas storage device is associated with at least one heat exchanger. Through the at least one heat exchanger, the unwanted energy losses during operation of the
  • Heat exchanger is installed, for example, in or on the gas storage device.
  • the at least one heat exchanger advantageously takes over the resulting heat of compression and transports it, for example, to another heat exchanger in the environment. There, a transport medium of the heat exchanger cools off and is returned to the
  • Gas storage device is then advantageously transported heat from the environment in the direction of the gas storage device.
  • the relaxing gas in particular the relaxing air, can be heated in a simple manner.
  • the process described above can be advantageously supported by an active fan on the heat exchanger environment.
  • the above object is alternatively or additionally achieved in that in one of the pneumatic cylinder chambers of the pneumatic-hydraulic piston-cylinder assembly gas, in particular air, is compressed, while in the other pneumatic cylinder space of the
  • pneumatic-hydraulic piston-cylinder arrangement gas in particular air, is sucked from the environment.
  • the compressed gas is in the Gas storage device promoted. Due to the intermediate storage, the unwanted energy losses during operation of the energy storage system can be advantageously reduced.
  • Pneumatic valve devices are mutually switched on / off so that gas is slowly released from the gas storage device. This prevents the gas, especially the air, from cooling too much during the expansion process. As a result, the undesirable energy losses during operation of the energy storage system can be further reduced.
  • the above object is alternatively or additionally achieved in that the system comprises at least two gas piston pump and gas storage gas cylinders in a system cabinet, in which accommodated also the electric machine and the hydraulic machine are.
  • the gas cylinders are particularly advantageous for conventional gas cylinders.
  • the electric machine and the hydraulic machine are advantageously housed in a lower portion of the plant cabinet.
  • the invention further relates to a gas piston pump, a hydraulic machine and / or an electric machine for a previously described energy storage system, in particular for a previously described system for temporary storage of electrical energy.
  • Figure 1 is an illustration of the energy storage system with a gas piston pump and a gas storage device in the form of a hydraulic circuit diagram;
  • Figure 2 is a pV diagram to the energy storage system of Figure 1;
  • FIG. 3 shows a section of FIG. 1 with an additional throttle control
  • FIG. 4 shows a pV diagram for the energy storage system from FIG. 3;
  • Figure 5 shows a detail of the energy storage system of Figure 1 with a temperature storage system, which is associated with the gas storage device;
  • FIG. 6 shows a pV diagram for the energy storage system from FIG. 5;
  • FIG. 7 shows a section of the energy storage system from FIG. 1 with an additional heat exchanger, which is assigned to the gas storage device;
  • FIG. 8 shows a pV diagram for the energy storage system from FIG. 7;
  • FIG. 9 shows a system cabinet with an energy storage system, as shown in Figure 1, and
  • Figure 10 is a view into the plant cabinet of Figure 9 showing an arrangement of gas cylinders and gas piston pumps.
  • FIG. 1 shows an energy storage system 1 with an electric machine 4 and a hydraulic machine 5 in the form of a hydraulic circuit diagram.
  • an electric machine 4 By a plus symbol and a minus symbol is indicated in Figure 1, that the electric machine 4 to an electrical supply device connected.
  • the electric machine 4 can be operated both as an electric motor and as a generator.
  • the hydraulic machine 5 is drivingly connected to the electric machine 4 and can be operated as a hydraulic motor or as a hydraulic pump, as symbolically indicated by arrowheads in Figure 1. If the electric machine 4 works as an electric motor, then as
  • Hydraulic pump operating hydraulic machine 5 are driven by the electric machine 4.
  • Hydraulic motor works, then it can be driven with it working as a generator electric machine 4.
  • the energy storage system 1 further includes a
  • Gas storage device 8 with the gas, especially air, can be stored under pressure.
  • Piston cylinder assembly 10 is connected between the hydraulic machine 5 and the gas storage device 8.
  • the pneumatic-hydraulic piston-cylinder assembly 10 comprises a gas piston pump 12 with a cylinder 14.
  • a gas piston pump 12 with a cylinder 14.
  • Gas piston pump 12 are two pistons 15, 16 movable back and forth, that is movable in Figure 1 upwards and downwards, arranged.
  • the two pistons 15, 16 are coupled together by a piston rod 18, that is rigidly connected to each other in the case of the gas piston pump 12.
  • the piston rod 18 is guided through a separating element 19.
  • the cylinder 14 is divided inside in two halves.
  • a first inner hydraulic cylinder space 21 is separated from a second inner hydraulic cylinder space 22.
  • Hydraulic cylinder space 21 is limited in Figure 1 upwards of the piston 15.
  • the second inner hydraulic cylinder space 22 is limited in Figure 1 downwardly from the piston 16.
  • the first inner hydraulic cylinder space 21 of the glass piston pump 12 is connected via a hydraulic connection 23 to a hydraulic valve device 26 connected.
  • the second inner hydraulic cylinder space 22 is connected to the hydraulic valve device 26 via a hydraulic connection 24.
  • the hydraulic valve device 26 is designed as a 4/3-way valve with four connections and three switching positions.
  • springs is the
  • Hydraulic valve device 26 biased in its illustrated center position.
  • the hydraulic valve device 26 is electromagnetically actuated.
  • the gas piston pump 12 comprises in the cylinder 14 a first outer pneumatic cylinder space 31 and a second outer pneumatic cylinder space 32.
  • the first outer pneumatic cylinder space 31 is delimited by the piston surface of the piston 15 facing away from the separating element 19.
  • the second outer pneumatic cylinder space 32 is delimited by the piston surface of the piston 16 facing away from the separating element 19.
  • the first pneumatic cylinder chamber 31 is assigned a pneumatic connection 33.
  • the second pneumatic cylinder chamber 32 is assigned a pneumatic connection 34.
  • the pneumatic connection 33 communicates with a pneumatic branch 35.
  • the pneumatic port 34 communicates with a pneumatic branch 36.
  • Pneumatikventil wornen 41 to 44 are as 2/2 way valves with a
  • Pneumatic valve devices 41 and 43 a connection to the environment is interrupted.
  • the pneumatic valve devices 42, 44 are connected between the respectively associated branch 35, 36 and a pneumatic branch 48.
  • the gas storage device 8 is connected to the pneumatic branch 48
  • Pneumatic valve devices 42, 44 an escape of gas from the gas storage device 8 is interrupted or prevented.
  • FIG. 2 shows a pV diagram for the energy storage system 1 from FIG. On an x-axis is a compression volume V in a suitable
  • V s a start volume is designated.
  • VE is a final volume.
  • Ps is a memory pressure.
  • pv is a
  • a slow relaxation of the air from the gas storage 8 which is also referred to as an air reservoir.
  • the slow relaxation prevents the air in the relaxation process from cooling too much and thus with it associated energy loss undesirably reduces the efficiency of the energy storage system 1.
  • Pneumatic devices 41 to 44 and the gas storage device 8 with special construction elements, such as cooling fins, the
  • FIG. 3 shows a section from FIG. 1 with the gas piston pump 12 and the gas storage device 8 and the pneumatic valve devices 41 through 44 according to a further exemplary embodiment of the energy storage system.
  • Figure 3 is between the branches 35, 36 and the
  • Pneumatic valve devices 41, 43 each one
  • Throttle check valve 61, 62 connected.
  • the throttle check valves 61, 62 are regulated in their illustrated embodiment, but may also be carried out unregulated.
  • Throttle check valves 61, 62, a mutual control of the pneumatic valve devices 41, 43 is no longer required.
  • Pneumatic valve means 41, 43 can during the
  • Relaxation process remain open. Depending on the set throttling, the relaxation process is automatically slowed down.
  • FIG. 4 shows the associated pV diagram.
  • an arrow 65 is indicated that the point VE in the thermodynamic gas process by the previously described slowdown of the expansion process further in Moved toward Vs. This can reduce energy loss in the
  • FIG. 5 shows the same detail from FIG. 1 as in FIG. 3 according to a further exemplary embodiment.
  • the first exemplary embodiment the same detail from FIG. 1 as in FIG. 3 according to a further exemplary embodiment.
  • the exemplary embodiment the same detail from FIG. 1 as in FIG. 3 according to a further exemplary embodiment.
  • the temperature storage system 74 is formed, for example, from liquid or solid materials and surrounds a gas storage 70 of the
  • the temperature storage system 74 has the task of buffering heat of compression. If desired, the stored heat may be controlled or returned uncontrolled back into the gas storage 70 to heat the air stored in the gas storage 70 prior to its relaxation.
  • thermodynamic gas process results from the
  • FIG. 7 shows the same section of the energy storage system 1 from FIG. 1 as in FIGS. 3 and 5 according to a further exemplary embodiment.
  • a heat exchanger 82 is arranged in the gas storage device 8.
  • the heat exchanger 82 in the gas storage device 8 is connected to a heat exchanger 81 in the environment.
  • the heat exchanger 81 in the area is associated with a fan 84.
  • the heat exchanger 82 takes over resulting in the compression process
  • a curve 53 shows an isothermal compression process.
  • arrows 88, 89 is indicated in Figure 8 that the characteristics of the compression and expansion process is the isothermal
  • Compression process 86 are approximated. This results in a reduced storage energy loss 87.
  • a system 100 for the energy storage system 1 of Figure 1 is shown by way of example.
  • the plant 100 comprises a plant cabinet 102 with feet 104, 105.
  • the plant has, for example, a height of almost two meters and a width of about sixty centimeters. At the top of that
  • Plant cabinet 102 an air connection pipe 108 is provided.
  • an electric machine 114 and a hydraulic machine 115 are arranged in a lower portion of the plant cabinet 102. Above the two machines 114, 115, a hydraulic medium reservoir 116 is arranged.
  • a gas storage device 118 occupies a majority of an interior of the plant cabinet 102.
  • the gas storage device 118 comprises a total of six gas cylinders 121 to 126.
  • the gas cylinders 121 to 126 are combined with two gas piston pumps 131, 132.
  • FIG. 10 shows a cross section of the plant cabinet 102 from FIG. In the cross section you can see how the total of six gas cylinders 121 to 126, together with the two gas piston pumps 131, 132 are arranged in a particularly space-saving manner in the system cabinet 102.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un système d'accumulation d'énergie (1) destiné au stockage temporaire d'énergie électrique, comprenant une machine électrique (4) qui est reliée de manière motrice à une machine hydraulique (5), et comprenant un ensemble de piston et cylindre pneumatique-hydraulique (10) qui est disposé entre la machine hydraulique (5) et un dispositif d'accumulation de gaz (8) avec interposition de dispositifs à vanne. En vue d'optimiser l'accumulation d'énergie électrique avec une machine électrique, l'ensemble de piston et cylindre pneumatique-hydraulique (10) comprend au moins une pompe à piston à gaz (12), laquelle possède deux raccords pneumatiques (33, 34) et deux raccords hydrauliques (23, 24) qui peuvent être reliés ou sont reliés à la machine hydraulique (5) avec interposition d'un dispositif à vanne hydraulique (26).
PCT/EP2016/072612 2015-11-20 2016-09-22 Système d'accumulation d'énergie WO2017084792A1 (fr)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118206A (zh) * 2019-05-27 2019-08-13 长沙理工大学 一种新型液压蓄能器控制回路
CN111086267A (zh) * 2018-10-23 2020-05-01 罗伯特·博世有限公司 液压的控制装置
CN111649016A (zh) * 2020-06-16 2020-09-11 长沙理工大学 一种可控型主动式液压储能装置及能量再生工程机械
CN111689341A (zh) * 2019-03-15 2020-09-22 上海煊凝机电制造有限公司 一种节能液压油缸升降系统
WO2022021793A1 (fr) * 2020-07-30 2022-02-03 苏州康开电气有限公司 Alimentation en énergie pneumatique destinée aux équipements à ultra haute tension
CN115059128A (zh) * 2022-06-23 2022-09-16 江苏师范大学 挖掘机动臂势能回收再利用杠杆调压节能装置和控制方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3701617A4 (fr) * 2017-12-11 2022-10-12 Leaper Innovate Green Technologies (Proprietary) Limited Système d'énergie à air comprimé
WO2020178832A1 (fr) * 2019-03-05 2020-09-10 Dan Davidian Système et procédé d'entraînement hydraulique-pneumatique avec stockage d'énergie pour ascenseurs
DE102019006695B4 (de) * 2019-09-24 2023-01-26 G4A Gmbh Hydraulische Kolbeneinrichtung, welche mindestens zum Zwecke einer Gasverdichtung verwendbar ist, Druckgasenergiewandlungseinrichtung, Druckgasenergiewandlungs-Wärmetauscher-Einrichtung, Druckgasenergiewandlungs-Wärmetauscher-Einrichtungs-Vorstufeneinrichtung und Druckgasenergiewandlungsvorrichtung
DE102019123974A1 (de) * 2019-09-06 2021-03-11 Mohamad Kamal Allabwani Hydraulisch-elektrische Vorrichtung zur Wandlung und Speicherung von Energie sowie Verfahren zum Betreiben und Verwendung einer solchen
DE102021102231A1 (de) 2021-02-01 2022-08-04 Hypnetic GmbH Elektrisches Energiespeichersystem und Verfahren zur Ein- und Ausspeicherung elektrischer Energie sowie Computerprogramm

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017546A1 (fr) * 1995-11-03 1997-05-15 Cyphelly Ivan J Convertisseur pneumo-hydraulique pour accumuler l'energie
US20090301089A1 (en) * 2008-06-09 2009-12-10 Bollinger Benjamin R System and Method for Rapid Isothermal Gas Expansion and Compression for Energy Storage
WO2010087934A1 (fr) * 2009-01-30 2010-08-05 Robert Bosch Gmbh Système de stockage d'énergie hydraulique avec accumulateur et procédé de variation de la charge de celui-ci
US7832207B2 (en) 2008-04-09 2010-11-16 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
DE102010019434A1 (de) * 2010-05-05 2011-11-10 Robert Bosch Gmbh Hydrostatischer Energiespeicher
US20110283690A1 (en) * 2008-04-09 2011-11-24 Bollinger Benjamin R Heat exchange with compressed gas in energy-storage systems
US20120006013A1 (en) * 2008-04-09 2012-01-12 Mcbride Troy O High-efficiency energy-conversion based on fluid expansion and compression
DE102012012142A1 (de) * 2012-06-20 2013-12-24 Robert Bosch Gmbh Hydraulische Stelleinrichtung
DE102013105186A1 (de) 2013-05-21 2014-11-27 Georg Tränkl Druckluft-Energiespeichersystem

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017546A1 (fr) * 1995-11-03 1997-05-15 Cyphelly Ivan J Convertisseur pneumo-hydraulique pour accumuler l'energie
US7832207B2 (en) 2008-04-09 2010-11-16 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
US20110283690A1 (en) * 2008-04-09 2011-11-24 Bollinger Benjamin R Heat exchange with compressed gas in energy-storage systems
US20120006013A1 (en) * 2008-04-09 2012-01-12 Mcbride Troy O High-efficiency energy-conversion based on fluid expansion and compression
US20090301089A1 (en) * 2008-06-09 2009-12-10 Bollinger Benjamin R System and Method for Rapid Isothermal Gas Expansion and Compression for Energy Storage
WO2010087934A1 (fr) * 2009-01-30 2010-08-05 Robert Bosch Gmbh Système de stockage d'énergie hydraulique avec accumulateur et procédé de variation de la charge de celui-ci
DE102010019434A1 (de) * 2010-05-05 2011-11-10 Robert Bosch Gmbh Hydrostatischer Energiespeicher
DE102012012142A1 (de) * 2012-06-20 2013-12-24 Robert Bosch Gmbh Hydraulische Stelleinrichtung
DE102013105186A1 (de) 2013-05-21 2014-11-27 Georg Tränkl Druckluft-Energiespeichersystem

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111086267A (zh) * 2018-10-23 2020-05-01 罗伯特·博世有限公司 液压的控制装置
CN111086267B (zh) * 2018-10-23 2024-03-01 罗伯特·博世有限公司 液压的控制装置
CN111689341A (zh) * 2019-03-15 2020-09-22 上海煊凝机电制造有限公司 一种节能液压油缸升降系统
CN110118206A (zh) * 2019-05-27 2019-08-13 长沙理工大学 一种新型液压蓄能器控制回路
CN110118206B (zh) * 2019-05-27 2020-07-24 长沙理工大学 一种新型液压蓄能器控制回路
CN111649016A (zh) * 2020-06-16 2020-09-11 长沙理工大学 一种可控型主动式液压储能装置及能量再生工程机械
WO2022021793A1 (fr) * 2020-07-30 2022-02-03 苏州康开电气有限公司 Alimentation en énergie pneumatique destinée aux équipements à ultra haute tension
CN115059128A (zh) * 2022-06-23 2022-09-16 江苏师范大学 挖掘机动臂势能回收再利用杠杆调压节能装置和控制方法

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