CN115051478B - Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method - Google Patents
Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method Download PDFInfo
- Publication number
- CN115051478B CN115051478B CN202210720278.0A CN202210720278A CN115051478B CN 115051478 B CN115051478 B CN 115051478B CN 202210720278 A CN202210720278 A CN 202210720278A CN 115051478 B CN115051478 B CN 115051478B
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- energy storage
- pressure
- electric
- gas
- 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.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 171
- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010168 coupling process Methods 0.000 title claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 172
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 172
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 162
- 239000007789 gas Substances 0.000 claims abstract description 84
- 238000003860 storage Methods 0.000 claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 34
- 239000003570 air Substances 0.000 claims description 119
- 238000006243 chemical reaction Methods 0.000 claims description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 18
- 150000002431 hydrogen Chemical class 0.000 claims description 16
- 238000005868 electrolysis reaction Methods 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims description 12
- 239000002918 waste heat Substances 0.000 claims description 10
- 239000002737 fuel gas Substances 0.000 claims description 9
- 239000003345 natural gas Substances 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 8
- 239000012080 ambient air Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 22
- 239000000126 substance Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- H02J15/008—Systems for storing electric energy using hydrogen as energy vector
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
- C25B15/081—Supplying products to non-electrochemical reactors that are combined with the electrochemical cell, e.g. Sabatier reactor
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- 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]
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a hydrogen-electricity-coupling heterogeneous time-scale-crossing composite energy storage system and a method, which mainly comprise a compressed air energy storage subsystem, an electric-to-gas hydrogen production subsystem and related energy/substance interfaces, wherein the compressed air energy storage subsystem comprises a low-pressure compressor, an intercooler, a high-pressure compressor, a aftercooler, a gas storage volume, a preheater, a high-pressure combustor, a high-pressure turbine, a low-pressure combustor, a low-pressure turbine, a first clutch, a second clutch, a motor and other components, and the electric-to-gas hydrogen production subsystem comprises a water electrolyzer, an oxygen compressor, a hydrogen compressor, an oxygen storage tank and a hydrogen storage tank. The invention combines the electric-to-gas hydrogen production by the ultra-long energy storage technology with the compressed air energy storage by the long-time energy storage technology, and shares the energy release device of the compressed air energy storage so as to realize the space-time management of the multi-scale electric energy unbalance, enhance the operation flexibility of the electric power system and improve the grid-connected capacity of the renewable energy sources.
Description
Technical Field
The invention belongs to the technical field of energy storage, and particularly relates to a hydrogen electric coupling heterogeneous cross-time scale composite energy storage system and method.
Background
It is imperative to accelerate the construction of novel power systems based on non-carbon-based energy sources, especially renewable energy sources such as wind energy, solar energy and the like. Given that wind and solar energy resources are subject to meteorological conditions and exhibit fluctuating characteristics, grid-connection will exacerbate the uncertainty and disorder of energy flow in the power system, resulting in the need for extremely high operational flexibility of the power system. The energy storage system has the energy time-sharing storage and release capability, has high operation flexibility, can realize the space-time transfer of the unbalanced quantity of electric energy (the difference between the load and the renewable energy source power), and is beneficial to improving the grid-connected capacity level of the renewable energy source.
In general, the electrical energy unbalance has a multi-time scale fluctuation characteristic, so that the matched energy storage system has the capability of stabilizing fluctuation of different time scales. When the renewable energy grid-connected capacity is not high, the fluctuation of the electric energy unbalance quantity in a medium-short time scale is a main contradiction of the operation of the electric power system, so that the research in the energy storage field in the industry is focused on the aspects of short-time energy storage (minute level) and long-time energy storage (hour level) to provide services such as frequency modulation, phase modulation, peak regulation and the like for the electric power system. However, under the drive of energy decarburization, the proportion of renewable energy will continuously rise, which causes the contradiction of (ultra) long-time scale electric energy imbalance to be more and more prominent, so that urgent demands are made on the technology of ultra-long-time energy storage (days, weeks or months, including seasonal energy storage). Meanwhile, the novel power system mainly containing high-proportion renewable energy is difficult to cope with the influence of frequent natural disasters and other nonresistible factors, and the ultra-long-time energy storage system can guarantee the safety of the power system under extreme conditions.
At present, the technology which is put into commercial use and has the energy storage potential for the ultra-long time only has two forms of pumped storage, compressed air energy storage and the like, but the technology belongs to the technical category of the energy storage for the long time at present, and the technology has not really the energy storage capability for the ultra-long time. Although the pumped storage technology can realize the feasibility of energy storage in ultra-long time in a specific area, the universality is limited due to the topography condition and the dead water period. The compressed air energy storage technology is a mechanical energy storage technology derived from a gas turbine, has the advantages of wide power/energy range, high response speed, excellent partial load performance, long service life and the like, and is a technical form which has great potential and can be popularized to the ultra-long time energy storage field. On the other hand, the large loss of self-dissipation makes the current technology difficult to realize the ultra-long-time energy storage in the form of electric energy storage, and the energy needs to be converted into other energy forms, such as electric heating, electric gas conversion and the like. However, the low frequency, long cycle characteristics of the ultra-long term stored energy can result in serious underutilization of the energy release device that is associated therewith.
In summary, renewable energy sources are rapidly increased under the drive of a double-carbon target, so that the problem of electric energy unbalance of an ultra-long time scale is more and more obvious, and urgent demands are made on ultra-long time energy storage technologies which are usually ignored at the present stage. The compressed air energy storage of the current typical long-term energy storage technology has the energy storage potential of ultra-long term energy storage, but is limited by the volume and pressure conditions of the gas storage cavern. In addition, when the energy storage is extremely long, the energy storage can be realized only through non-electric storage forms such as electric energy conversion or electric heat conversion and the like with extremely low self loss, belongs to an ideal carrier for realizing the energy storage of an extremely long time scale, and is subjected to the problem that the utilization rate of an energy release device configured for the energy storage device is seriously insufficient due to the low-frequency long-time period characteristic of the extremely long-time energy storage.
Disclosure of Invention
The invention aims to provide a heterogeneous cross-time scale composite energy storage system and method for hydrogen electric coupling, which are used for overcoming the defects of the existing ultra-long time energy storage technology.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a hydrogen-electrically coupled heterogeneous cross-time scale composite energy storage system comprises a compressed air energy storage subsystem and an electric-to-gas hydrogen production subsystem;
the compressed air energy storage subsystem comprises a low-pressure compressor and a high-pressure compressor which are coaxially arranged, wherein the shaft of the high-pressure compressor is connected to a motor through a first clutch, the compressed air energy storage subsystem further comprises a low-pressure turbine and a high-pressure turbine which are coaxially arranged, the shaft of the high-pressure turbine is connected to the motor through a second clutch, and the motor is connected with a power grid;
the inlet end of the low-pressure compressor is communicated with ambient air, the outlet end of the low-pressure compressor is connected to the inlet end of the high-pressure compressor after heat exchange by the intercooler, the outlet end of the high-pressure compressor is connected to the gas storage volume after heat exchange by the aftercooler, the outlet end of the gas storage volume is connected to the high-pressure combustor together with hydrogen generated by the electric-conversion hydrogen production subsystem after heat exchange by the preheater, the outlet end of the high-pressure combustor is connected to the inlet end of the high-pressure turbine, the outlet end of the high-pressure turbine is connected to the low-pressure combustor together with hydrogen generated by the electric-conversion hydrogen production subsystem, and the outlet end of the low-pressure combustor is connected to the inlet end of the low-pressure turbine;
when the load demand of a user is lower than the electric energy supply of an electric power system, the heterogeneous cross-time scale composite energy storage system operates in an energy storage process, a first clutch of the compressed air energy storage subsystem is engaged, a second clutch is disconnected, the motor operates in a motor mode, and meanwhile, the electric conversion gas hydrogen production subsystem produces hydrogen and stores the hydrogen; when the load demand of a user is higher than the electric energy supply of an electric power system, the heterogeneous cross-time scale composite energy storage system operates in an energy release process, a first clutch of the compressed air energy storage subsystem is disconnected, a second clutch is engaged, the motor operates in a generator mode, and meanwhile, the electric conversion gas hydrogen production subsystem releases hydrogen; when the air storage volume is free of available compressed air and electric energy output is needed, the heterogeneous cross-time scale composite energy storage system operates in a simple power generation mode, the first clutch and the second clutch of the compressed air energy storage subsystem are engaged, and the motor operates in a generator mode.
Further, the electric-to-gas hydrogen production subsystem comprises a water electrolyzer, the water electrolyzer is powered by a power grid, the inlet end of the water electrolyzer is connected with a water supply pipeline, the oxygen outlet end and the hydrogen outlet end of the water electrolyzer are respectively connected to an oxygen storage tank and a hydrogen storage tank through an oxygen compressor and a hydrogen compressor, and the outlet end of the hydrogen storage tank is respectively connected to a high-pressure combustor and a low-pressure combustor.
Further, the hydrogen outlet end of the water electrolysis cell is also connected to a hydrogen transportation port.
Further, the outlet end of the hydrogen storage tank is also connected to an air network.
Further, the intercooler and the aftercooler exchange heat through cooling media.
Further, the preheater exchanges heat with the exhaust gas of the low pressure turbine.
The heterogeneous cross-time scale composite energy storage method comprises the steps that when the load demand of a user is lower than the electric energy supply of an electric power system, the heterogeneous cross-time scale composite energy storage system operates in an energy storage process; at the moment, the electric energy unbalance sequence extracts different time scale fluctuation information of the electric energy unbalance through a frequency division algorithm, and determines energy storage sequences distributed to the compressed air energy storage subsystem and the electric conversion hydrogen production subsystem; for the compressed air energy storage subsystem, the first clutch is engaged, the second clutch is disconnected, the motor is operated in a motor mode, the energy storage electric power sequence distributed to the compressed air energy storage subsystem drives the compressor to rotate, ambient air is boosted in the low-pressure compressor and flows into the intercooler, cooling medium takes away heat in the compression process and cools the air, then the air is sent into the high-pressure compressor to be boosted continuously, the boosted air is cooled after heat in the compression process is transferred to the cooling medium in the aftercooler, and then the cooled air is stored in the gas storage volume;
when the load demand of a user is higher than the electric energy supply of an electric power system, an electric energy gap exists, a heterogeneous cross-time scale composite energy storage system operates in an energy release process, at the moment, the electric energy unbalance sequence extracts different time scale fluctuation information of the electric energy unbalance through a frequency division algorithm, energy release sequences of a compressed air energy storage subsystem and an electric conversion gas hydrogen production subsystem and corresponding air flow and hydrogen flow are determined, for the compressed air energy storage subsystem, a first clutch is disconnected, a second clutch is engaged, a motor operates in a generator mode, high-pressure air in a storage volume enters a preheater according to the air flow demand to absorb waste heat of turbine exhaust gas to perform preheating, then enters a high-pressure combustor, burns together with one hydrogen gas sent by the electric conversion gas hydrogen production subsystem to generate high-pressure fuel gas, then the high-temperature high-pressure high-compression air flows into the high-pressure turbine to expand and do work, cooled and depressurized exhaust gas enters a low-pressure combustor to perform expansion work after the other hydrogen gas is combusted together with the other hydrogen gas sent by the electric conversion gas hydrogen production subsystem, the working exhaust gas is exchanged in the preheater to flow the high-pressure turbine to exhaust gas after the high-pressure turbine is exhausted coaxially, and the high-pressure turbine is arranged in the preheater to make up for the high-pressure turbine is arranged to drive the high-pressure turbine to empty, and the high-pressure generator is evacuated;
when the gas storage volume is free of available compressed air and electric energy is required to be output, the heterogeneous cross-time scale composite energy storage system operates in a simple power generation mode, the first clutch and the second clutch () 2 are engaged, the motor operates in a power generator mode, and the compressed air energy storage subsystem operates according to the circulation of the gas turbine to generate power.
Further, the electric-to-gas hydrogen production subsystem comprises a water electrolyzer, the water electrolyzer is powered by a power grid, the inlet end of the water electrolyzer is connected with a water supply pipeline, the oxygen outlet end and the hydrogen outlet end of the water electrolyzer are respectively connected to an oxygen storage tank and a hydrogen storage tank through an oxygen compressor and a hydrogen compressor, and the outlet end of the hydrogen storage tank is respectively connected to a high-pressure combustor and a low-pressure combustor;
when the heterogeneous time-scale-crossing composite energy storage system operates in an energy storage process, for the electric-to-gas hydrogen production subsystem, the energy storage electric power sequence distributed to the electric-to-gas hydrogen production subsystem is fed into an electrolysis water tank to carry out water electrolysis, oxygen and hydrogen are prepared, compressed by an oxygen compressor and a hydrogen compressor, and then stored in an oxygen storage tank and a hydrogen storage tank.
Further, when the heterogeneous cross-time scale composite energy storage system operates in the energy release process, high-pressure air in the air storage volume enters the preheater according to the air flow requirement to absorb turbine exhaust waste heat for preheating, then enters the high-pressure combustor, and is combusted together with one strand of hydrogen sent by the hydrogen storage tank in the electric-conversion gas hydrogen production subsystem to generate high-temperature high-pressure fuel gas, then the high-temperature high-pressure fuel gas flows into the high-pressure turbine for expansion work, the cooled and depressurized exhaust enters the low-pressure combustor, and after being combusted together with the other strand of hydrogen sent by the hydrogen storage tank again for heating, the cooled and depressurized exhaust is sent into the low-pressure turbine for expansion work, and the working exhaust exchanges waste heat with the high-pressure air flowing out of the air storage volume in the preheater and is exhausted.
Further, the outlet end of the hydrogen storage tank is also connected to a gas network, when the heterogeneous time-scale-crossing composite energy storage system operates in a simple power generation mode, hydrogen sent from the hydrogen storage tank in the electric-to-gas hydrogen production subsystem or natural gas sent from the gas network is sent to the combustor, and the compressed air energy storage subsystem circularly operates to generate power according to the gas turbine.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention can realize the characteristics of long-time energy storage function, fuel interface existing in compressed air energy storage and the like based on the ultra-long-time energy storage technology, combines the electric-to-gas hydrogen production of the ultra-long-time energy storage technology and the compressed air energy storage of the long-time energy storage technology, shares an energy release device, and forms a heterogeneous trans-scale composite energy storage system with hydrogen electric coupling. The system can realize large-scale controllable energy transfer within a wide time scale range, and has important significance and scientific value for the consumption of high-proportion renewable energy sources and the construction of novel power systems.
Furthermore, the system not only has the characteristics of cross-time scale (long time scale and ultra-long time scale), heterogeneous energy storage (hydrogen storage and electricity storage) and zero carbon emission (hydrogen combustion), but also can increase a simple power generation mode on the basis of the original energy storage and release idle mode of the compressed air energy storage system, and the electric-to-gas hydrogen production belongs to flexible electric load, so that the system has wider adjustment range and more flexible operation characteristics.
Furthermore, by connecting the gas network, the system of the invention adopts hydrogen afterburning except for using natural gas under extreme conditions, thereby realizing zero carbon emission, improving the turbine inlet temperature in the energy release stage to improve the energy release power level, and regulating the turbine inlet temperature by changing the fuel-air ratio to realize wide-range energy release power adjustment.
Furthermore, the electric conversion gas hydrogen production mode can realize energy fluctuation management on a time scale, and can realize space transfer of energy and energy supply and demand balance in a wider region range on a space scale through hydrogen transportation (liquid hydrogen transportation or natural gas pipeline hydrogen feeding) due to the existence of a hydrogen medium, so that the blocking of a power transmission network can be effectively relieved, and the upgrading requirement on the power transmission network is reduced. In addition, the hydrogen medium enables the system to have the potential of being coupled with various systems, so that the decoupling of a power grid and an air grid in the comprehensive energy system can be realized, and the medium such as methane, ammonia or other liquid fuels can be prepared through further chemical processes, so that the energy storage and comprehensive utilization in a wider range can be realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system according to the present invention.
1, a first clutch; 2. a second clutch; 3. a motor; 4. a low pressure compressor; 5. an intercooler; 6. a high pressure compressor; 7. an aftercooler; 8. a gas storage volume; 9. a preheater; 10. a high pressure burner; 11. a high pressure turbine; 12. a low pressure burner; 13. a low pressure turbine; a1, a water electrolysis tank; a2, an oxygen compressor; a3, a hydrogen compressor; a4, an oxygen storage tank; a5, a hydrogen storage tank.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the attached drawing figures:
according to the invention, a compressed air energy storage technology and an electric conversion hydrogen production technology are coupled, and an energy release device of a compressed air energy storage system is shared by referencing a hydrogen combustion gas turbine technology, so that a heterogeneous trans-scale composite energy storage system based on compressed air energy storage and hydrogen electric coupling is formed. The system has three operation modes of energy storage, energy release, simple power generation and the like.
The system of the invention comprises a compressed air energy storage subsystem, an electric-to-gas hydrogen production subsystem and other energy/material interfaces. The compressed air energy storage subsystem comprises an air compressor, a gas cooler, a gas storage volume, a gas preheater, a hydrogen burner, a turbine, a clutch, a generator/motor and other core components; the electric-to-gas hydrogen production subsystem comprises a water electrolyzer, a hydrogen compressor, an oxygen compressor, a hydrogen storage tank, an oxygen storage tank and other core components; the system also comprises an expandable heat energy interface, an oxygen interface, a hydrogen mobile transportation end, a hydrogen blending transportation interface through a gas network and the like, and a gas network input port which can provide fuel gas in extreme cases.
And if the unbalance amount is negative, redundant electric energy exists, and the system operates in an energy storage mode, otherwise operates in an energy release mode. Meanwhile, the electric energy unbalance quantity extracts different time scale fluctuation characteristics of the electric energy unbalance quantity through frequency division algorithms such as frequency spectrum decomposition, wavelet decomposition and the like so as to formulate energy storage/release sequences of different subsystems in the system in the energy storage/release process.
When the air cooler is operated in the energy storage mode, the energy storage electric power sequence distributed to the compressed air energy storage subsystem drives the compressor to rotate, and the ambient air is compressed and stored in the air storage volume after being cooled in the air cooler, so that the total air quantity and the air pressure in the air storage volume are increased. Meanwhile, the energy storage electric power sequence distributed to the electric conversion hydrogen production subsystem is introduced into an electrolysis water tank for water electrolysis, oxygen and hydrogen are produced, compressed by an oxygen compressor and a hydrogen compressor and then stored in an oxygen storage tank and a hydrogen storage tank.
When the system operates in the energy release mode, the subsystem energy release sequence determined by the frequency division algorithm can determine the corresponding air flow and hydrogen flow. The high-pressure air in the air storage volume of the compressed air energy storage subsystem enters the air preheater according to the air flow demand to absorb the waste heat of turbine exhaust gas for preheating, then is combusted together with hydrogen sent by the hydrogen storage tank in the electric conversion hydrogen production subsystem in the hydrogen combustion burner, and the air enters the turbine for expansion work after being heated further. The working exhaust exchanges waste heat with high-pressure cold air flowing out of the air storage volume in the air preheater and then is exhausted.
When the gas storage volume is free from available compressed air and electric energy is required to be output, the composite energy storage system operates in a simple power generation mode, namely a gas turbine operation mode, and at the moment, the system uses hydrogen in a hydrogen storage tank of an electric conversion gas hydrogen production subsystem or natural gas in a gas network as fuel and operates to generate power according to the principle of the gas turbine.
The composite energy storage system not only has the characteristics of cross-time scale (long time scale and ultra-long time scale), heterogeneous energy storage (hydrogen storage and electricity storage) and zero carbon emission (hydrogen combustion), but also can increase a simple power generation mode on the basis of the original energy storage and release idle mode, and the electric-to-gas hydrogen production belongs to flexible electric load, so that the system has wider adjustment range and more flexible operation characteristics.
The composite energy storage system adopts hydrogen afterburning except for using natural gas under extreme conditions, can realize zero carbon emission, can also improve the turbine inlet temperature in the energy release stage to improve the energy release power level, and can also adjust the turbine inlet temperature through the change of the fuel-air ratio to realize wide-range energy release power adjustment.
The electric conversion hydrogen production mode of the composite energy storage system can realize energy fluctuation management on a time scale, and can realize space transfer of energy and energy supply and demand balance in a wider region range on a space scale through hydrogen transportation (liquid hydrogen transportation or natural gas pipeline hydrogen feeding) due to the existence of a hydrogen medium, so that the blocking of a power transmission network can be effectively relieved, and the upgrading requirement on the power transmission network is reduced. In addition, the hydrogen medium enables the system to have the potential of being coupled with various systems, so that the decoupling of a power grid and an air grid in the comprehensive energy system can be realized, and the medium such as methane, ammonia or other liquid fuels can be prepared through further chemical processes, so that the energy storage and comprehensive utilization in a wider range can be realized.
The system combines the electric conversion of the ultra-long-time energy storage technology into the hydrogen production and the long-time energy storage technology into the compressed air energy storage by referring to the hydrogen-burning gas turbine technology, and the energy release device for the compressed air energy storage is shared, so that the system is beneficial to stabilizing renewable energy fluctuation in different time scales, and has important practical significance for building a novel power system and implementing a double-carbon target.
Examples
A hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system, see fig. 1. The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
Referring to fig. 1, a schematic diagram of a hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system is provided to describe its operating principles in detail. The system mainly comprises a compressed air energy storage subsystem, an electric-to-gas hydrogen production subsystem and related energy/substance interfaces. The compressed air energy storage subsystem comprises a low-pressure compressor 4, an intercooler 5, a high-pressure compressor 6, an aftercooler 7, a gas storage volume 8, a preheater 9, a high-pressure combustor 10, a high-pressure turbine 11, a low-pressure combustor 12, a low-pressure turbine 13, a first clutch 1, a second clutch 2, a motor 3 and other components, and the electric conversion gas hydrogen production subsystem comprises a water electrolysis tank A1, an oxygen compressor A2, a hydrogen compressor A3, an oxygen storage tank A4, a hydrogen storage tank A5 and the like.
The main working principle is described as follows:
the electric energy unbalance amount formed by subtracting the electric energy supply of the electric power system from the user load demand not only has the positive and negative alternation characteristic, but also has the multi-time scale fluctuation characteristic. According to the positive and negative alternation characteristics of the unbalance amount of the electric energy, the working process of the heterogeneous cross-time scale composite energy storage system can be divided into an energy storage process and an energy release process.
When the load demand of the user is lower than the power supply of the power system, the unbalance amount of the power is negative, redundant power exists, and the heterogeneous cross-time-scale composite energy storage system operates in the energy storage process. At this time, the electric energy unbalance sequence extracts different time scale fluctuation information of the electric energy unbalance through a frequency division algorithm, and determines the energy storage sequence distributed to the compressed air energy storage subsystem and the electric conversion hydrogen production subsystem. For the compressed air energy storage subsystem, the first clutch 1 is engaged, the second clutch 2 is disengaged, and the electric machine 3 is operated in motor mode. The stored energy electric power sequence allocated to this subsystem drives the compressor in rotation, the ambient air is first boosted in the low-pressure compressor 4 and then flows into the intercooler 5, the cooling medium takes away the heat of the compression process and then the air is cooled, then the air is fed into the high-pressure compressor 6 and is further boosted, the boosted air is cooled after transferring the heat of the compression process to the cooling medium in the aftercooler 7 and then stored in the air storage volume 8, so that the total air quantity and the air pressure in the air storage volume 8 are increased. And for the electric conversion hydrogen production subsystem, the energy storage electric power sequence distributed to the subsystem is introduced into an electrolysis water tank A1 for water electrolysis to prepare oxygen and hydrogen, and the oxygen and the hydrogen are respectively compressed by an oxygen compressor A2 and a hydrogen compressor A3 and then stored in an oxygen storage tank A4 and a hydrogen storage tank A5.
When the load demand of the user is higher than the power supply of the power system, the unbalance amount of the power is positive, a power gap exists, and the heterogeneous cross-time-scale composite energy storage system operates in the energy release process. At this time, the electric energy unbalance sequence extracts different time scale fluctuation information of the electric energy unbalance through a frequency division algorithm, and determines the energy release sequence of the compressed air energy storage subsystem and the electric conversion hydrogen production subsystem and the corresponding air flow and hydrogen flow. For the compressed air energy storage subsystem, the first clutch 1 is disengaged, the second clutch 2 is engaged, and the electric machine 3 is operated in generator mode. The high-pressure air in the air storage volume 8 enters the preheater 9 according to the air flow requirement to absorb the waste heat of turbine exhaust gas to perform preheating, then enters the high-pressure combustor 10, is combusted together with one strand of hydrogen sent by the hydrogen storage tank A5 in the electric conversion gas hydrogen production subsystem to generate high-temperature high-pressure fuel gas, then the high-temperature high-pressure fuel gas flows into the high-pressure turbine 11 to perform expansion work, the cooled and depressurized exhaust gas enters the low-pressure combustor 12, is combusted together with the other strand of hydrogen sent by the hydrogen storage tank A5 again to perform heating, then is sent into the low-pressure turbine 13 to perform expansion work, and the working exhaust gas exchanges the waste heat with the high-pressure air flowing out of the air storage volume 8 in the preheater 9 and is exhausted. The high-pressure turbine 11 and the low-pressure turbine 13 which are coaxially arranged drive a generator to generate electricity, so that an electric energy gap is filled. In addition, the sum of the flow rates of hydrogen fed to the high pressure combustor 10 and the low pressure combustor 12 is equivalent to the calculated value of the crossover algorithm.
When the air storage volume 8 is free of available compressed air but requires electrical energy output, the system operates in a simple power generation mode, the first clutch 1 and the second clutch 2 are both engaged, and the motor 3 operates in a generator mode. And hydrogen sent by a hydrogen storage tank A5 or natural gas sent by a gas net in the electric conversion hydrogen production subsystem is sent to a combustor, and the compressed air energy storage subsystem circularly operates to generate power according to a gas turbine.
The heterogeneous cross-time scale composite energy storage system of the present invention has a variety of energy/material interfaces. The heat of the compression process of the compressed air energy storage subsystem in the energy storage stage is taken away by the cooling medium in the intercooler 5 and the aftercooler 7, and this part of the heat energy can be further used. The hydrogen stored in the hydrogen storage tank A5 of the electric conversion gas hydrogen production subsystem can be sent to different places for use, such as transportation by hydrogen or transportation by a natural gas network, etc.; meanwhile, in the extreme case, the heterogeneous cross-time scale composite energy storage system can also realize energy release by using fuel gas of a gas network.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The heterogeneous cross-time scale composite energy storage system is characterized by comprising a compressed air energy storage subsystem and an electric-to-gas hydrogen production subsystem;
the compressed air energy storage subsystem comprises a low-pressure compressor (4) and a high-pressure compressor (6) which are coaxially arranged, wherein the shaft of the high-pressure compressor (6) is connected to the motor (3) through a first clutch (1), the compressed air energy storage subsystem further comprises a low-pressure turbine (13) and a high-pressure turbine (11) which are coaxially arranged, the shaft of the high-pressure turbine (11) is connected to the motor (3) through a second clutch (2), and the motor (3) is connected with a power grid;
the inlet end of the low-pressure compressor (4) is communicated with ambient air, the outlet end of the low-pressure compressor (4) is connected to the inlet end of the high-pressure compressor (6) after heat exchange by the intercooler (5), the outlet end of the high-pressure compressor (6) is connected to the gas storage volume (8) after heat exchange by the aftercooler (7), the outlet end of the gas storage volume (8) is connected to the high-pressure combustor (10) together with hydrogen generated by the electric-conversion hydrogen production subsystem after heat exchange by the preheater (9), the outlet end of the high-pressure combustor (10) is connected to the inlet end of the high-pressure turbine (11), the outlet end of the high-pressure turbine (11) and the hydrogen generated by the electric-conversion hydrogen production subsystem are connected to the low-pressure combustor (12) together, and the outlet end of the low-pressure combustor (12) is connected to the inlet end of the low-pressure turbine (13);
when the load demand of a user is lower than the electric energy supply of an electric power system, the heterogeneous cross-time scale composite energy storage system operates in an energy storage process, a first clutch (1) of the compressed air energy storage subsystem is engaged, a second clutch (2) is disconnected, a motor (3) operates in a motor mode, and meanwhile, the electric conversion gas hydrogen production subsystem produces hydrogen and stores the hydrogen; when the load demand of a user is higher than the electric energy supply of an electric power system, the heterogeneous cross-time scale composite energy storage system operates in an energy release process, a first clutch (1) of the compressed air energy storage subsystem is disconnected, a second clutch (2) is engaged, a motor (3) operates in a generator mode, and meanwhile, the electric conversion gas hydrogen production subsystem releases hydrogen; when the air storage volume (8) is free of available compressed air and electric energy output is needed, the heterogeneous cross-time scale composite energy storage system operates in a simple power generation mode, the first clutch (1) and the second clutch (2) of the compressed air energy storage subsystem are both engaged, and the motor (3) operates in a generator mode.
2. The hydrogen-electrically coupled heterogeneous cross-time scale composite energy storage system according to claim 1, wherein the electric-to-gas hydrogen production subsystem comprises a water electrolyzer (A1), the water electrolyzer (A1) is powered by a power grid, an inlet end of the water electrolyzer (A1) is connected with a water supply pipeline, an oxygen outlet end and a hydrogen outlet end of the water electrolyzer (A1) are connected to an oxygen storage tank (A4) and a hydrogen storage tank (A5) through an oxygen compressor (A2) and a hydrogen compressor (A3) respectively, and an outlet end of the hydrogen storage tank (A5) is connected to a high-pressure combustor (10) and a low-pressure combustor (12) respectively.
3. A hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system according to claim 2, characterized in that the hydrogen outlet end of the water electrolysis cell (A1) is also connected to a hydrogen transportation port.
4. A hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system according to claim 2, wherein the outlet end of the hydrogen storage tank (A3) is further connected to an air network.
5. A hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system according to claim 1, wherein the intercooler (5) and aftercooler (7) are both heat exchanged by a cooling medium.
6. A hydrogen electrically coupled heterogeneous cross-time scale composite energy storage system according to claim 1, characterized in that the preheater (9) exchanges heat with the exhaust gas of a low pressure turbine (13).
7. A hydrogen-electrically coupled heterogeneous time-scale composite energy storage method, which adopts the hydrogen-electrically coupled heterogeneous time-scale composite energy storage system according to any one of claims 1-6, and is characterized in that when the load demand of a user is lower than the electric energy supply of an electric power system, the heterogeneous time-scale composite energy storage system operates in an energy storage process; at the moment, the electric energy unbalance sequence extracts different time scale fluctuation information of the electric energy unbalance through a frequency division algorithm, and determines energy storage sequences distributed to the compressed air energy storage subsystem and the electric conversion hydrogen production subsystem; for a compressed air energy storage subsystem, a first clutch (1) is engaged, a second clutch (2) is disconnected, a motor (3) operates in a motor mode, an energy storage electric power sequence distributed to the compressed air energy storage subsystem drives the compressor to rotate, ambient air is boosted in a low-pressure compressor (4) firstly and then flows into an intercooler (5), cooling medium takes away heat in a compression process, air is cooled, then the air is sent into a high-pressure compressor (6) to be boosted continuously, the boosted air is cooled after transferring the heat in the compression process to the cooling medium in an aftercooler (7), and then stored in a gas storage volume (8), and for an electric conversion hydrogen production subsystem, the energy storage electric power sequence distributed to the electric conversion hydrogen production subsystem realizes hydrogen production storage;
when the load demand of a user is higher than the electric energy supply of an electric power system, an electric energy gap exists, a heterogeneous cross-time scale composite energy storage system operates in an energy release process, at the moment, different time scale fluctuation information of the electric energy unbalance is extracted through a frequency division algorithm, energy release sequences of a compressed air energy storage subsystem and an electric conversion gas hydrogen production subsystem and corresponding air flow and hydrogen flow are determined, for the compressed air energy storage subsystem, a first clutch (1) is disconnected, a second clutch (2) is engaged, a motor (3) operates in a generator mode, high-pressure air in a storage volume (8) enters a high-pressure combustor (10) after being preheated by the air flow demand, and enters the preheater (9) to absorb turbine exhaust waste heat according to the air flow demand, and is combusted together with one strand of hydrogen gas sent by the electric conversion gas hydrogen production subsystem to generate high-pressure gas, then the high-pressure high-turbine (11) expands and works, cooled and depressurized exhaust gas enters a low-pressure combustor (12), after the other strand of hydrogen gas sent by the electric conversion gas subsystem is combusted together, and is sent into the low-pressure turbine (13) to heat, and the high-pressure turbine (13) is cooled and then is exhausted to make up for the high-pressure gas in the high-pressure turbine (13), and the high-pressure turbine (13) is exhausted after the low-pressure turbine is coaxially arranged, and the high-pressure energy storage volume is exhausted, and the high-pressure turbine (8) is exhausted, and the high-pressure energy storage system is exhausted;
when the air storage volume (8) is free of available compressed air and electric energy is required to be output, the heterogeneous cross-time scale composite energy storage system operates in a simple power generation mode, the first clutch (1) and the second clutch (2) are both meshed, the motor (3) operates in a power generation mode, and the compressed air energy storage subsystem operates in a circulating mode according to the gas turbine to generate power.
8. The hydrogen-electrically coupled heterogeneous cross-time scale composite energy storage method according to claim 7, wherein the electric-to-gas hydrogen production subsystem comprises a water electrolyzer (A1), the water electrolyzer (A1) is powered by a power grid, an inlet end of the water electrolyzer (A1) is connected with a water supply pipeline, an oxygen outlet end and a hydrogen outlet end of the water electrolyzer (A1) are respectively connected to an oxygen storage tank (A4) and a hydrogen storage tank (A5) through an oxygen compressor (A2) and a hydrogen compressor (A3), and outlet ends of the hydrogen storage tank (A5) are respectively connected to a high-pressure combustor (10) and a low-pressure combustor (12);
when the heterogeneous time-scale-crossing composite energy storage system operates in an energy storage process, for the electric-to-gas hydrogen production subsystem, an energy storage electric power sequence distributed to the electric-to-gas hydrogen production subsystem is introduced into an electrolysis water tank (A1) to carry out water electrolysis, oxygen and hydrogen are prepared, compressed by an oxygen compressor (A2) and a hydrogen compressor (A3) respectively, and then stored in an oxygen storage tank (A4) and a hydrogen storage tank (A5).
9. The hydrogen-electrically-coupled heterogeneous cross-time scale composite energy storage method according to claim 8, wherein when the heterogeneous cross-time scale composite energy storage system operates in an energy release process, high-pressure air in the air storage volume (8) enters a preheater (9) according to air flow requirements to absorb turbine exhaust waste heat for preheating, then enters a high-pressure combustor (10), is combusted together with one strand of hydrogen sent by a hydrogen storage tank (A5) in an electric-conversion hydrogen production subsystem to generate high-temperature high-pressure fuel gas, then the high-temperature high-pressure fuel gas flows into a high-pressure turbine (11) for expansion work, cooled and depressurized exhaust enters a low-pressure combustor (12), is combusted together with the other strand of hydrogen sent by the hydrogen storage tank (A5) again for heating, is sent into a low-pressure turbine (13) for expansion work, and the work-done exhaust exchanges waste heat with the high-pressure air flowing out of the air storage volume (8) in the preheater (9) and is exhausted.
10. The method for heterogeneous cross-time scale composite energy storage of hydrogen electrical coupling according to claim 8, wherein the outlet end of the hydrogen storage tank (A5) is further connected to a gas network, when the heterogeneous cross-time scale composite energy storage system operates in a simple power generation mode, hydrogen gas sent from the hydrogen storage tank (A5) or natural gas sent from the gas network in the electric conversion hydrogen production subsystem is sent to a combustor, and the compressed air energy storage subsystem operates according to a gas turbine cycle to generate power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720278.0A CN115051478B (en) | 2022-06-23 | 2022-06-23 | Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720278.0A CN115051478B (en) | 2022-06-23 | 2022-06-23 | Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115051478A CN115051478A (en) | 2022-09-13 |
| CN115051478B true CN115051478B (en) | 2024-03-01 |
Family
ID=83162745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210720278.0A Active CN115051478B (en) | 2022-06-23 | 2022-06-23 | Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115051478B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190074617A (en) * | 2017-12-20 | 2019-06-28 | 연세대학교 산학협력단 | System coupled combined cycle power generation system and compressed air storage, and operating method thereof |
| CN113346528A (en) * | 2021-05-28 | 2021-09-03 | 北京能高自动化技术股份有限公司 | Multi-energy combined supply type peak regulation station and peak regulation method based on hydrogen energy storage construction |
| CN214958724U (en) * | 2021-05-28 | 2021-11-30 | 青海能高新能源有限公司 | Multi-energy combined supply system constructed based on hydrogen energy storage |
| EP3931661A1 (en) * | 2020-05-04 | 2022-01-05 | 8Me Nova, Llc | Method for controlling integrated renewable electric generation resource and charge storage system providing desired capacity factor |
| CN114123521A (en) * | 2021-11-22 | 2022-03-01 | 清华大学无锡应用技术研究院 | Energy storage system is united with compressed carbon dioxide to electrolytic hydrogen of renewable energy |
-
2022
- 2022-06-23 CN CN202210720278.0A patent/CN115051478B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190074617A (en) * | 2017-12-20 | 2019-06-28 | 연세대학교 산학협력단 | System coupled combined cycle power generation system and compressed air storage, and operating method thereof |
| EP3931661A1 (en) * | 2020-05-04 | 2022-01-05 | 8Me Nova, Llc | Method for controlling integrated renewable electric generation resource and charge storage system providing desired capacity factor |
| CN113346528A (en) * | 2021-05-28 | 2021-09-03 | 北京能高自动化技术股份有限公司 | Multi-energy combined supply type peak regulation station and peak regulation method based on hydrogen energy storage construction |
| CN214958724U (en) * | 2021-05-28 | 2021-11-30 | 青海能高新能源有限公司 | Multi-energy combined supply system constructed based on hydrogen energy storage |
| CN114123521A (en) * | 2021-11-22 | 2022-03-01 | 清华大学无锡应用技术研究院 | Energy storage system is united with compressed carbon dioxide to electrolytic hydrogen of renewable energy |
Non-Patent Citations (2)
| Title |
|---|
| 孟明 ; 薛宛辰 ; .综合能源系统环境下储能技术应用现状研究.电力科学与工程.2020,(06),全文. * |
| 梁银林 ; 刘庆 ; 钱勇 ; 张文祥 ; .压缩空气储能系统研究概述.东方电气评论.2020,(03),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115051478A (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111237144A (en) | Gravity compressed air energy storage system and working method thereof | |
| CN111639824B (en) | Thermoelectric optimization scheduling method for regional comprehensive energy system with electric-to-gas conversion | |
| CN104675680A (en) | Compressed air energy storing system for cold and heat power supply | |
| CN206582068U (en) | A kind of non-afterburning compressed air electricity generation system of photo-thermal combined type | |
| CN104533556A (en) | Carbon dioxide gas-liquid phase change energy storage method and device for achieving method | |
| CN102359437A (en) | Integrated system with wind power generation and compressed air energy storage and integration method thereof | |
| Huang et al. | Assessment of an integrated energy system embedded with power-to-gas plant | |
| CN112901459A (en) | Compressed air energy storage system coupled and integrated with cryogenic air separation device | |
| CN108253728A (en) | A kind of efficient liquefied air energy-storage system | |
| Zhao et al. | Thermodynamic performance analysis of a novel energy storage system consist of asymmetric PEMEC and SOFC combined cycle | |
| CN115051478B (en) | Hydrogen-electric-coupling heterogeneous cross-time-scale composite energy storage system and method | |
| Huang et al. | Overview of research situation and progress on compressed air energy storage technology | |
| CN116316888A (en) | Optimized scheduling method, system and device for hydrogen electric coupling system | |
| CN116094181A (en) | Land water pressure hydrogen-shrinking energy storage system and design method for variable speed constant frequency and power grid frequency support function thereof | |
| Zhai et al. | Optimal Scheduling of Hydrogen Energy Storage IES with Dual-fuel Cells | |
| Ceran et al. | Performance Analysis of a Hybrid Generation System of Wind Turbines, Photovoltaic Modules, and a Fuel Cell | |
| CN113410855A (en) | Hydrogen energy storage and hydrogen supply chain equipment configuration method based on comprehensive energy system | |
| CN108167088B (en) | Heat source conversion device and comprehensive utilization system for waste heat of universal energy station | |
| CN207865820U (en) | A kind of efficient liquefied air energy-storage system | |
| CN219960127U (en) | Solid heat accumulation and heat compensation type carbon dioxide energy storage integrated operation system | |
| CN116771450B (en) | Multi-energy control system based on supercritical CO2 generator set | |
| CN216278267U (en) | Natural valve station power supply system based on differential pressure power generation | |
| CN114976168B (en) | Electric heating oxygen production and supply system for power generation and ammonia electrochemical combined production and storage | |
| Zhang et al. | Optimal Operation of Near-Zero Carbon Integrated Energy System with Efficient Hydrogen Production | |
| CN110863906B (en) | Energy supply system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |