WO2023229974A1 - Systèmes de commande intelligents pour stockage d'énergie - Google Patents

Systèmes de commande intelligents pour stockage d'énergie Download PDF

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Publication number
WO2023229974A1
WO2023229974A1 PCT/US2023/023063 US2023023063W WO2023229974A1 WO 2023229974 A1 WO2023229974 A1 WO 2023229974A1 US 2023023063 W US2023023063 W US 2023023063W WO 2023229974 A1 WO2023229974 A1 WO 2023229974A1
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WO
WIPO (PCT)
Prior art keywords
energy storage
electricity
energy
storage system
controlling
Prior art date
Application number
PCT/US2023/023063
Other languages
English (en)
Inventor
Lien Chun Ding
Chih Cheng Tai
Original Assignee
Power8 Tech Inc.
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
Priority claimed from US18/199,745 external-priority patent/US20230299697A1/en
Application filed by Power8 Tech Inc. filed Critical Power8 Tech Inc.
Publication of WO2023229974A1 publication Critical patent/WO2023229974A1/fr

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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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
    • 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
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • F05B2260/42—Storage of energy
    • F05B2260/422—Storage of energy in the form of potential energy, e.g. pressurized or pumped fluid

Definitions

  • the present invention relates to green (renewable) energy power generation and storage. Specifically, the present invention relates to a smart controlling system for energy storage.
  • a computer-controlled energy storage system optimizes the process of energy storage and electricity re-generation.
  • the computer-controlled energy storage system includes a computer instruction implemented (e.g., software) computing device, which can optimize the amount and/or pressure of the water pumped, the compressed air pressure range, the amount and/or pressure of the compressed air released, among other factors.
  • the computer-controlled energy storage system can also use Al (artificial intelligence), ML (machine learning), BD (big data), robots (e.g., computer-controlled valves), VR (virtual reality), and AR (augmented reality) in optimizing the controlling systems.
  • the energy storage system is configured to pressurize/ compress the gas (e.g., ambient air and nitrogen gas) to a first predetermined pressure level (e.g., 60 atm or 60 bar) forming a compressed gas for storing the energy.
  • a first predetermined pressure level e.g., 60 atm or 60 bar
  • the pressure of the compressed gas is reduced/released to a second predetermined pressure level (e.g., 40 atm or 20 atm) for energy release.
  • a second predetermined pressure level e.g., 40 atm or 20 atm
  • the air is compressed and released in a pressure range that is optimized in terms of energy storage (energy storge and release) efficiency.
  • the gas is not pressurized to an unneeded high-pressure level (e.g., lOOatm) and also does not release to an exhausted pressure level (e.g., 0 atm).
  • the compressed air used herein is mainly used as a media, a force providing source, to push water to drive a hydroelectric generator.
  • the mass, the velocity, the moving direction and the driving force generated by the injecting water or liquid are the factors affect the efficiency of driving the hydroelectric generator, whereas the compressed gas provides a spring-like forces to push/move the water or liquid.
  • the energy storage system disclosed here does not rely on the heat generated when the air is compressed and does not rely on the compressed gas itself to drive the hydroelectric generator. Any other factors that are controllable by mechanical, chemical, or operational process and are able to be optimized in terms of energy storage/re- generation efficiency are within the scope of the Present disclosure.
  • the energy storage system uses a smart energy management system to compress the gas to a predetermined level to provide a controlled and optimized force for pushing and driving the water/liquid to drive the hydroelectric generator.
  • FIG. 1 illustrates a power supplying system in accordance with some embodiments.
  • FIG. 2 illustrates a method of controlling and managing the energy storage efficiency in accordance with some embodiments.
  • FIG. 3 is a three-dimensional schematic diagram illustrates the energy storage system in accordance with some embodiments.
  • FIG. 4 is a three-dimensional schematic diagram illustrating the energy storage system in accordance with some embodiments.
  • FIG. 5 illustrates the energy storage system having n*m units of energy storages 10".
  • FIG. 6 is a schematic flow chart showing the energy storage method using heterogeneous pressure media and interactive actuation in accordance with some embodiments.
  • FIG. 7 shows an electricity demand curve on a summer peak day.
  • FIG. 8 is a schematic flow chart illustrating the method of distributing electricity from an energy bank in accordance with some embodiments.
  • FIG. 1 illustrates a power supplying system 100 in accordance with some embodiments.
  • the power supplying system 100 includes a control system 102, an energy generating system 104, an energy storage system 106, and an energy transmitting system 108.
  • control system 102 is configured to communicate/control the energy generating system 104, the energy storage system 106, and the energy transmitting system 108.
  • control system 102 includes a computer instruction implemented (e.g., software) computing device, which can also use Al (artificial intelligence), ML (machine learning), BD (big data), robots (e.g., computer-controlled valves), VR (virtual reality), and AR (augmented reality) in assisting the optimization of the controlling operations.
  • a computer instruction implemented e.g., software
  • Al artificial intelligence
  • ML machine learning
  • BD big data
  • robots e.g., computer-controlled valves
  • VR virtual reality
  • AR augmented reality
  • control system 102 comprises a computer server 130, a phone device 128 (e.g., smart phone), or any other electronic controlling devices that can be signally coupled with the systems and devices to be controlled (e.g., wirelessly or connected with wires).
  • a phone device 128 e.g., smart phone
  • any other electronic controlling devices that can be signally coupled with the systems and devices to be controlled (e.g., wirelessly or connected with wires).
  • the energy generating system 104 has devices that generates electrical energy, including wind turbines 110, solar panels 112, and other forms of energy/electricity generating devices 114 (e.g., nuclear power plant, geothermal electricity generating plant, coal power plant, and renewable energy-based electricity generating plant.)
  • energy/electricity generating devices 114 e.g., nuclear power plant, geothermal electricity generating plant, coal power plant, and renewable energy-based electricity generating plant.
  • the energy storage system 106 comprises one or more pumps 118, one or more vessels 116 (e.g., metal vessels (e.g., 8mm-10mm in thickness of steel plate) surrounded/encapsulated by concrete (e.g., 40cm in its thickness), such as ferro-cement) and one or more generators 120.
  • the energy storage system 106 comprises one or more pumps 118, one or more concrete containers as the vessels 116 with a predetermined (e.g., 10cm- 100cm) thickness.
  • a predetermined e.g. 10cm- 100cm
  • the pumps 118 use energy received from the energy generating system 104 to pressurize one or more vessels 116 by pumping fluids (e.g., water 122) to compress the gas 124 forming a pressurized gas.
  • the one or more vessels 116 can be pre-pressurized at a predetermined de-fault pressure, such as 10atm-60atm, 20 atm, 30 atm, 40 atm, 50 atm, or 90 atm.
  • One liquid vessel 122 A and one gas vessel 124A form a set or a unit of energy storage vessel set.
  • the one or more vessels 116 comprise from one unit to 100,000 units in one location (e.g., a power storage plant).
  • Each of the energy storage vessel set can be controlled and operated independently. In some embodiments, a predetermined numbers or zones of the energy storage vessel set can be controlled and operated together, concurrently, in sequence, or in any operational orders.
  • the operation includes pressurizing, pumping fluids (e.g., liquid and gas), adjusting temperature, controlling rate of moving liquids or gases, and among any other controllable conditions.
  • the one or more hydrogenerators 120 generate (e.g., regenerate) energy by using the water 122 to drive a hydrogenerator, wherein the water 122 is driven or pushed by releasing the pressured gas 124 (e.g., air, nitrogen or a mixture of two or more gases).
  • the energy transmitting system 108 e.g., electric power grid 126) transmits electricity to be used by users (e.g., residential uses and commercial uses).
  • the energy storage system 106 is used as the energy storage device of the current power generation source (e.g., the energy generating systems 104).
  • the power generation source can be thermal power generation systems, hydroelectric power generation systems or a wind power generator, nuclear power, geothermal energy, tidal energy, etc.
  • the power generation source generates electrical energy, and the electrical energy can further drive the pump 118 of the heterogeneous pressure media and interactive actuation energy storage system (e.g., the energy storage system 106) allowing the pump 118 to operate the working fluid to store energy in the energy storage 116.
  • the energy storage can be matched with or support the power generation source, or be the main alternative power source, supplying the electrical energy to the electrical energy demand through the electric power network at any time.
  • FIG. 2 illustrates a method 200 of controlling and managing the energy storage efficiency in accordance with some embodiments.
  • the control system 102 is configured to communicate/control the energy storage system 106 (FIG. 1), which optimizes the energy storage and re-generating efficiency.
  • the control system 102 receives sensed system conditions and environmental conditions (e.g., via one or more sensors coupled with the energy storage system) and use such received information to calculate and control the energy storage system 106 (FIG. 1), so that the energy storage system 106 is operated at an optimized efficiency.
  • the efficiency can include total energy store-and-release efficiency (e.g., energy conversion rate, such as maintaining at least 65% or 70% or above efficiency), generating most economic value (e.g., compress and release the water and gas at a speed or manner that generates most dollar profits, generating the least heat, generating the most heat, causing the least equipment damages, optimized matching efficiency of the rotational speed of the hydrogenerator with driving fluid (e.g., liquid or gas) or any other efficiencies.
  • the control system 102 (FIG. 1) is configured to operate the energy storage system 106 (FIG.
  • the compressed air of the Present energy storage system is pressurized to around 60 bar/atm only.
  • the compressed air in fact, is acting more like a mechanical spring providing a force pushing the water to drive the hydro-generator.
  • the energy storge system disclosed herein can be more like a piston in a combustion engine, where the water is more like the piston and a change of the air pressure is used to push or pull the piston (e.g., causing a repeating back-and-force motion).
  • a change of the air pressure is used to push or pull the piston (e.g., causing a repeating back-and-force motion).
  • control system 102 (FIG. 1) is configured to monitor and operate the energy storage system 106 (FIG. 1) based on the following efficiency factors including compression efficiency, liquid pumping efficiency, generator efficiency or a combination therefore (e.g., the total efficiency of the system).
  • Artificial intelligence or machine learning are used based on the formula provided above or any other formula to monitor and optimize the efficiency of the energy storage system.
  • the control system 102 sets an initial pressure Po at time zero, which is the starting point of compression.
  • PTC is a Target Pressure of the Compressed Pressure (e.g., 60 atm)
  • PTR is a Target Pressure of the Released Pressure (e.g., 40 atm)
  • Psc is a Sensed Current Pressure (e.g., 10 atm at Giveaway mark of the compression process).
  • PATC which is an Adjusted Target Pressure of the Compressed Pressure (e.g., 58.6 atm)
  • PATR which is an Adjusted Target Pressure of the Released Pressure (e.g., 38.2 atm).
  • the control system 102 monitors and control the air compression to generate a small amount of heat, which is sufficient to be used to provide heat to the gas when it is expanded subsequently.
  • the heat can be stored first and then subsequently transferred to be used.
  • 1 indicates a first condition/status (e.g., before gas compression) and 2 indicates a second condition/status (e.g., after gas compression).
  • Such heat generated during compression can be insignificant.
  • the liquid pumping efficiency to be monitored and optimized includes pump type, pump operational efficiency, and among other factors.
  • the generator efficiency to be monitored and optimized includes turbine speed, turbine friction, and liquid speed & amount to energy generating ratio, and among other factors.
  • FIG. 3 is a three-dimensional schematic diagram 300 illustrates the energy storage system 106 (Fig. 1) in accordance with some embodiments.
  • a heterogeneous pressure media and interactive actuation energy storage system 20 includes a plurality of energy storages 10” (e.g., similar to the energy storage 116 of FIG.
  • the energy storages 302, 304, 306 and 308 are illustrated by 4 units as an example.
  • the number can be arbitrarily selected, for example, the range of the number may be between 10 and 100 energy storages 10", 100 and 1,000 energy storages 10", or 1,000 and 999,999 energy storages 10".
  • the energy storages 302, 304, 306 and 308 respectively accommodate a fluid (e.g., liquid, gas, or a combination thereof) and respectively include a first set of containers 12, a second set of containers 14, a first set of tubes 16 and a second set of tubes 18.
  • a fluid e.g., liquid, gas, or a combination thereof
  • the energy storages 302, 304, 306 and 308 may be added to or removed from the heterogeneous pressure media and interactive actuation energy storage system 20 in real-time or on-demand.
  • the energy storages 302, 304, 306 and 308 may be controlled through the valve body to determine whether to operate (deemed as added) or not to operate (deemed as removed) in the energy storage system 20.
  • the first set of containers 12 forms a first set of spaces SP1 to store an initial gas IG (e.g., air or helium) in each of the first set of containers 12.
  • an initial gas IG e.g., air or helium
  • the second set of containers 14 are disposed of on the lower side of the first set of containers 12, and the second set of containers 14 form a second space SP2 to store an initial liquid IL (e.g., water) in each of the second set of containers 14.
  • an initial liquid IL e.g., water
  • One end of the first tube 16 is coupled to the first container 12 and the other end of the first tube 16 is coupled to the second container 14, so that the first tube 16 connects with the first space SP1 and the second space SP2.
  • One end of the second tube 18 is coupled to the second container 14 and the other end of the second tube 18 is coupled to the first pipe 6.
  • the diameter of the second tube 18 may be larger or smaller than the diameter of the first tube 16.
  • the liquid source 2 supplies and recycles the working liquid WL.
  • the liquid source 2 may be a reservoir, a water tower, a reservoir, and the like.
  • the function of the liquid source 2 functioning as a supply can be referred to as the description of the prior embodiment, which will not be repeated here.
  • the liquid source 2 can also recycle the working fluid WL outputted by the converter 4 through the second pipe 8.
  • the converter 4 receives and outputs the working fluid WL (e.g., dual functions of a liquid pump and a hydro generator).
  • the converter 4 may be a liquid pump, a turbo pump, a liquid generator, a liquid turbine generator, a hydro turbine generator, or other liquid driven device configured to generate electricity.
  • the liquid source 2 can also recycle the working liquid WL outputted from the converter 4 through the second pipe 8.
  • the first pipe 6 forms a third space SP3, and the first pipe 6 has a plurality of connection ports 62, a first connection point 64, and a third connection point 66.
  • Each of the connection ports 62 connects each of the second spaces SP2 and each of the third spaces SP3.
  • the first connection point 64 and the third connection point 66 are formed at the two ends of the first pipe 6.
  • the first connection point 64 is coupled to the first end 24 of the liquid source 2 and the third connection point 66 is coupled to the first end 42 of the converter 4.
  • the second pipe 8 forms a fourth space SP4, and a first end 82 of the second pipe 8 is coupled to a second end 44 of the converter 4 and a second end 84 of the second pipe 8 is coupled to the second end 26 of the liquid source 2.
  • the working liquid WL from the liquid source 2 is injected into the second space SP2 through the first pipe 6 and the second tube 18, so that the working liquid WL drives the initial liquid IL through the first tube 16 to continuously compresses the initial gas IG in the first space SP1 until the initial gas IG acting on the first space SP1 has a predetermined pressure, thereby enabling the first container 12 to store a first pressure energy FPE.
  • the working liquid WL from the liquid source 2 is injected into the second space SP2 through the first pipe 6 and the second tube 18, so that the working liquid WL drives the initial liquid IL through the first tube 16 to continuously compresses the initial gas IG in the first space SP1 until the initial gas IG acting on the first space SP1 has a predetermined pressure, thereby enabling the first container 12 to store a first pressure energy FPE.
  • the initial gas IG continuously expands due to its pressure by opening a controlling valve to drive the initial liquid IL moving toward and discharge from the second tube 18 to convert the first pressure energy FPE into a second pressure energy SPE and pass through the first pipe 6 to drive the converter 4 to generate an electrical energy E; and the working liquid WL after driving the converter 4 returns to the liquid source 2 through the second pipe 8.
  • FIG. 4 is a three-dimensional schematic diagram 400 illustrating the energy storage system in accordance with some embodiments.
  • the energy storage system 20' includes not only the energy storage 10", the liquid source 2, the converter 4, the first pipe 6 and the second pipe 8, but also a pressure sensor 32, a pump 34, a valve body 36, and a controller 38.
  • the pump 34 enables the heterogeneous pressure media and interactive actuation energy storage system to have a better energy storage effect, storing and releasing more energy.
  • the pressure sensor 32 can be used to sense, for example, changes in the working fluid WL, the initial liquid IL or the initial gas IG and generate a corresponding sensing signal SS.
  • the pressure sensor 32 is disposed of at the first container 12 as an example. In other embodiments, the pressure sensor 32 may also be disposed of at least one of the second container 14, the first tube 16, the second tube 18, the first pipe 6 and the second pipe 8.
  • the pump 34 can be used to adjust, for example, the flow rate of the working liquid
  • the pump 34 herein can be specially designed to provide the working liquid WL to generate a higher flow rate and pressure to act on the initial liquid IL and the initial gas IG, and energy can be quickly and readily stored in the first container 12 and the second container 14.
  • the pump 34 is disposed between the first pipe 6 and the liquid source 2 as an example.
  • the pump 34 may also be disposed of at least one of the first space SP1, the second space SP2, the first tube 16, the second tube 18, between the first tube 16 and the first container 12, between the second tube 18 and the second container 14, the first pipe 6, the second pipe 8, between the second pipe 8 and the liquid source 2, and between the second pipe 8 and the converter 2.
  • the pump 34 regulates the working liquid WL of the liquid source 2 to enter the energy storage 10".
  • the valve bodies 36, 36' can provide an open mode and a closed mode manually and automatically.
  • the automatic control can be done via the control signal CS.
  • the control signal CS can be generated from the controller 38.
  • the working fluid WL, the initial liquid IL and the initial gas IG can pass through the valve bodies.
  • the closed mode the working fluid WL, the initial liquid IL and the initial gas IG are stopped by the valve bodies.
  • valve body 36 between the first pipe 6 and the liquid source 2 and the valve body 36' between the first pipe 6 and the converter 4 may also be disposed at the at least one of the first container 12, the second container 14, the first tube 16, the second tube 18, between the first tube 16 and the first container 12, between the second tube 18 and the second container 14, the first pipe 6, the second pipe 8, between the second pipe 8 and the liquid source 2, and between the second pipe 8 and the converter 4.
  • the controller 38 may receive a sensing signal SS generated by the pressure sensor 32 from sensing the pressure generated by, for example, the working fluid WL, the initial liquid IL or the initial gas IG.
  • the controller 38 generates a control signal CS according to the sensing signal SS to operate the valve bodies 36, 36' to further execute the open mode or the closed mode.
  • the controller 38 outputs the control signal CS to operate the valve body 36 to control the initial gas IG at a predetermined pressure, and when the initial gas IG has a predetermined pressure, the initial gas IG stops to be compressed.
  • the controller 38 can control the control program APP (e.g., similar to control system 102 of FIG. 1) to allow the energy storages 402, 404, 406 and 408 to store the first pressure energy FPE or convert the second pressure in a synchronous manner.
  • the controller 38 controls the valve body 36 so that the four energy storages 402, 404, 406 and 408 can simultaneously store about four times the first pressure energy FPE, or the four energy storages 402, 404, 406 and 408 can simultaneously release about four times the second pressure energy SPE.
  • the controller commands that the four energy storages 402, 404, 406 and 408 simultaneously store the first pressure energy (FPE) during off-peak periods.
  • the controller commands that the four energy storages 402, 404, 406 and 408 simultaneously release the second pressure energy (SPE) during peak periods.
  • the controller 38 can also control a control program APP to allow the energy storages 402, 404, 406 and 408 to store the first pressure energy FPE or convert the second pressure energy SPE asynchronously.
  • the controller 38 controls the valve body 36 or individually controllable valves at connection ports 62 (not shown) so that any of the energy storages 402, 404, 406 and 408 can independently store or release energy.
  • the controller 38 can select one, more or all of the energy storages to drive the converter to generate one or several times the electrical energy or extend the duration for the electrical energy E to generate electricity.
  • the first pressure energy FPE stored in the energy storages 402, 404, 406 and 408 is different from each other to maximize the total energy storage efficiency of the energy storage system.
  • the energy storage 402 can store the minimum first pressure energy. If the first pressure energy stored in the energy storage 402 is sufficient to cover the difference between the energy required by the market and the energy currently available, the energy storage system may not need to release the FPE stored in the energy storages 404, 406 and 408. In this way, over-operation of the energy storage system can be avoided.
  • the controller 38 monitor the amount of electrical energy E generated. For example, when an abnormality (such as insufficiency or overload) occurs in the electric power, the controller 38 issues an abnormal notification.
  • an abnormality such as insufficiency or overload
  • the controller 38 is capable of configuring electrical energy E, so as to supply electrical energy required in the energy storage 10 to achieve the purpose of selfgeneration and self-supply.
  • the energy storage 10 further includes an extended energy storage unit 40 connected to the converter 4 to store electrical energy E.
  • the extended energy storage unit 40 may be, for example, a storage battery, a secondary battery, a supercapacitor, or the like.
  • FIG. 5 illustrates the energy storage system 500 having nxm units of energy storages 10".
  • the energy storage system 500 has 4x3 units of energy storages 10".
  • the number of energy storages 10" can be adjusted according to the needs of the user.
  • the energy storage system 500 has 200x300 units of energy storages 10".
  • FIG. 6 is a schematic flow chart 600 shows the energy storage method using heterogeneous pressure media and interactive actuation in accordance with some embodiments.
  • the method starts at Step S91, which provides an initial gas in a first container.
  • the initial gas can be air or inert gas (e.g., helium, nitrogen).
  • an initial liquid e.g., water
  • a working liquid is supplied to the second container to drive the initial liquid to compress the initial gas and store a first pressure energy.
  • the working liquid is the same as the initial liquid (e.g. water).
  • the predetermined ranges of pressure, speed, among others of compression and release are monitors and controlled by appropriate sensors and controllers (e.g., computer-controlled valves).
  • Step S94 the first pressure energy is released by expanding the compressed gas to drive the initial liquid to work on the working fluid to output a second pressure energy.
  • Step S95 Steps S93 to S94 are performed to repeatedly act between the first pressure energy and the second pressure energy to output energy; for example, using the second pressure energy to drive a converter (such as a liquid pump, a turbo pump, liquid generator, liquid turbine generator, hydro turbine generator) to generate electricity.
  • a converter such as a liquid pump, a turbo pump, liquid generator, liquid turbine generator, hydro turbine generator
  • Step S95 the working fluid is recovered to be applied to the second container again to form a closed system in which the working fluid can be repeatedly used.
  • the devices and systems are used to store and release energy so that such stored energy can be used on-demand.
  • a system converts an electrical energy into a potential energy or compressed air energy, storing the converted energy, and releasing the stored energy when in- demand.
  • the power storage system can be used as a backup power system or standby power system, which can be built in supporting a power plant or a sub-power plant (e.g., at the power distribution level before the end user).
  • the power storage system can be used when the supply of the green energy/electrical power is disrupted or unstable.
  • FIG. 7 shows an electricity demand curve on a summer peak day.
  • zone 702 is in the period of excess power supply and zone 704 is in the period of power supply deficit.
  • the energy storage system of this disclosure can be in an energy storage mode during the period of excess power supply and in electricity generating mode during the period of electricity shortage.
  • the energy storage efficiency of the energy storage system can be optimized based on an efficiency factor, such as total economic efficiency.
  • the electricity price for zone 702 is an off-peak electricity price and the electricity price for zone 704 is a peak electricity price.
  • the pump 34 can be used to adjust the flow rate of the working liquid WL or the initial liquid IL.
  • the pump 34 can be arranged to provide the working liquid WL to generate a higher flow rate and pressure to act on the initial liquid IL and the initial gas IG, and energy can be quickly and easily stored in the first container 12 and the second container 14.
  • FIG.7 illustrates that the energy can be stored and re-generated based on a extra supply-and-on demand relationship.
  • the energy storage system disclosed herein can operate based on any other determining factors, such as the market price of the energy during the time in a day/season/in-real time, electricity demands in a city, regional supply or demand, and among any other factors.
  • FIG. 8 is a schematic flow chart illustrating the method of distributing electricity from an energy bank in accordance with some embodiments.
  • the method starts at Step S81.
  • the electricity storage is controlled through space replacement by compressing a gas (e.g., air) with water in each of multiple locations in a preselected geographic area.
  • a gas e.g., air
  • one or more of the multiple locations is selected to re-generate the electricity using the water propelled by a force provided by the compressed gas at each of the one or more of the multiple selected locations.
  • the electricity distribution is controlled by a remote-control system.
  • the electricity distribution can be controlled by a mobile device such as a smart phone.
  • the switch between electricity storage and regeneration can be determined by the electricity price, such as the market electricity purchasing price, the market electricity selling price.
  • the switch between electricity storage and regeneration can also be determined by electricity demand.
  • the energy storage systems are used for energy storage.
  • energy is stored in a form of water with compressed gas and energy can be released or re-generated in a form of electricity when needed, which is controlled by the operating systems disclosed herein.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Un système de stockage d'énergie commandé par ordinateur optimise le processus de stockage d'énergie et de re-génération d'électricité. Dans un cycle de stockage et de libération d'énergie, le gaz est comprimé et libéré dans une plage de pression qui est optimisée en termes d'efficacité de stockage et de libération d'énergie (par exemple, aller-retour). Dans certains modes de réalisation, le gaz n'est pas mis sous pression à un niveau de haute pression inutile (par exemple, 100 atm) et ne se libère pas jusqu'à un niveau de pression d'échappement (par exemple, 0 atm).
PCT/US2023/023063 2022-05-24 2023-05-22 Systèmes de commande intelligents pour stockage d'énergie WO2023229974A1 (fr)

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US202263345274P 2022-05-24 2022-05-24
US63/345,274 2022-05-24
US18/199,745 2023-05-19
US18/199,745 US20230299697A1 (en) 2021-12-03 2023-05-19 Smart controlling systems for energy storage

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