CN114928103A - Power generation system - Google Patents
Power generation system Download PDFInfo
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- CN114928103A CN114928103A CN202210603070.0A CN202210603070A CN114928103A CN 114928103 A CN114928103 A CN 114928103A CN 202210603070 A CN202210603070 A CN 202210603070A CN 114928103 A CN114928103 A CN 114928103A
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- 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
- H02J3/381—Dispersed generators
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
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- 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
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- 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
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- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/30—The power source being a fuel cell
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- 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
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- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
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- Sustainable Energy (AREA)
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Abstract
The application provides a power generation system mainly relates to the technical field of power generation, and can solve the problem of abandoning electricity in photovoltaic power generation. The power generation system comprises a high-voltage direct current bus, a hydrogen production power generation module and a light storage module, wherein the hydrogen production power generation module and the light storage module are connected with the high-voltage direct current bus, and the high-voltage direct current bus is used for being connected into a power grid. The hydrogen production power generation module is used for producing hydrogen according to the first high-voltage direct current provided by the high-voltage direct current bus, generating power through the hydrogen to obtain second high-voltage direct current, connecting the second high-voltage direct current into the high-voltage direct current bus, and the light storage module is used for connecting third high-voltage direct current into the high-voltage direct current bus through photovoltaic power generation.
Description
Technical Field
The invention relates to the technical field of power generation, in particular to a power generation system.
Background
At present, with the rapid development of new energy technology, photovoltaic and hydrogen power generation are gradually applied to the production of electric energy. The traditional photovoltaic and hydrogen energy power generation system generally comprises a photovoltaic power station, a water electrolysis hydrogen production device, a fuel gas power generation device and the like. The photovoltaic power station supplies power to the water electrolysis hydrogen production device so that the water electrolysis hydrogen production device produces hydrogen, and the hydrogen produced by the water electrolysis hydrogen production device is transmitted to the fuel gas power generation device through the natural gas pipeline to generate power. And the electric energy generated by the gas power generation device and the photovoltaic power station is connected to a power grid for power supply.
However, because the photovoltaic power generation station is influenced by weather, the photovoltaic power generation station has larger intermittence, randomness and fluctuation, so that the power supply of the photovoltaic power generation station to the electrolyzed water hydrogen production device is unstable, a large amount of electricity abandonment can be caused, and resources are wasted.
Disclosure of Invention
In order to solve the problem, the application provides a power generation system which can solve the problem of electricity abandonment in photovoltaic power generation.
The power generation system comprises a high-voltage direct current bus, a hydrogen production power generation module and a light storage module, wherein the hydrogen production power generation module and the light storage module are connected with the high-voltage direct current bus, and the high-voltage direct current bus is used for being connected into a power grid. The hydrogen production power generation module is used for producing hydrogen according to the first high-voltage direct current provided by the high-voltage direct current bus, generating power through the hydrogen to obtain second high-voltage direct current, connecting the second high-voltage direct current into the high-voltage direct current bus, and the light storage module is used for connecting third high-voltage direct current into the high-voltage direct current bus through photovoltaic power generation.
The power generation system that this application provided links to each other hydrogen manufacturing power generation module and light storage module through same high voltage direct current generating line, consequently, the third high voltage direct current that light storage module output both can provide electric power for the user, can provide the direct current to hydrogen manufacturing power generation module through high voltage direct current generating line again, and this application sets up hydrogen manufacturing power generation module and light storage module together, has solved the electric problem of abandoning that exists when only photovoltaic power generation.
In one possible design, the hydrogen production and power generation module comprises a first converter, a water electrolysis hydrogen production device, a hydrogen storage device, a high-temperature oxide hydrogen fuel cell reactor and a second converter. The first converter is used for converting the first high-voltage direct current into first variable high-voltage direct current and outputting the first variable high-voltage direct current to the water electrolysis hydrogen production device, the water electrolysis hydrogen production device is used for electrolyzing water to produce hydrogen according to the first variable high-voltage direct current, the obtained hydrogen is stored in the hydrogen storage device, the high-temperature oxide hydrogen fuel cell reactor is used for generating power according to the hydrogen transmitted by the hydrogen storage device and outputting fourth high-voltage direct current to the second converter, and the second converter is used for converting the fourth high-voltage direct current into second high-voltage direct current and accessing the second high-voltage direct current into the high-voltage direct current bus.
In a possible design mode, the high-temperature oxide hydrogen fuel cell reactor comprises a waste gas heat exchanger, the waste gas heat exchanger is connected with the cold and hot electric connection module and used for converting high-temperature waste gas generated by the high-temperature oxide hydrogen fuel cell reactor into heat energy and outputting the heat energy to the cold and hot electric connection module, and the cold and hot electric connection module converts the heat energy.
In a possible design mode, the power generation system further comprises a cold-hot electricity connection module, the cold-hot electricity connection module comprises a third converter and a load device, the third converter is used for converting first high-voltage direct current provided by the high-voltage direct current bus into second variable high-voltage direct current, and the load device is connected with the high-temperature oxide hydrogen fuel cell reactor through a high-temperature steam pipeline and is used for refrigerating or heating high-temperature gas obtained from the high-temperature oxide hydrogen fuel cell reactor through the high-temperature steam pipeline according to the second variable high-voltage direct current.
In one possible embodiment, the light storage module comprises a solar power module, which comprises a photovoltaic power unit and a solar controller. The photovoltaic power generation unit is used for converting solar energy into a third high-voltage direct current and connecting the third high-voltage direct current into the high-voltage direct current bus through the solar controller.
In one possible embodiment, the solar module further comprises a protective device, which is connected in series between the photovoltaic power generation unit and the solar controller.
In one possible embodiment, the light storage module further comprises an energy storage module, which includes the fourth converter and the energy storage device. The fourth converter is used for converting the first high-voltage direct current acquired from the high-voltage direct current bus into second variable high-voltage direct current and storing the second variable high-voltage direct current in the energy storage device, and is also used for converting the second variable high-voltage direct current transmitted by the energy storage device into the first high-voltage direct current and then connecting the first high-voltage direct current to the high-voltage direct current bus.
Based on above-mentioned optional mode, in order to guarantee that the electricity that power generation system exported for the user is enough the user to use, this application is provided with energy memory, guarantees that the electricity that power generation system finally exported is enough the user to use.
In a possible design, the energy storage module further includes an energy storage converter, and the energy storage converter is connected to the power grid and is configured to convert ac power obtained from the power grid into second variable high-voltage dc power and store the second variable high-voltage dc power in the energy storage module.
In one possible design, the power generation system further includes at least one power utilization module, and the power utilization module is connected with the high-voltage direct current bus and used for obtaining electric energy from the high-voltage direct current bus.
In one possible embodiment, the consumer module comprises a dc distributor device for converting the currently available electrical energy into low-voltage dc power and for supplying it to a low-voltage dc load connected to the dc distributor device.
The construction of the present application and other objects and advantages thereof will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a first schematic structural diagram of a power generation system provided in a first embodiment of the present application;
fig. 2 is a schematic structural diagram of a power generation system according to a first embodiment of the present application;
FIG. 3 is a schematic structural diagram of a power generation system provided in the first embodiment of the present application;
FIG. 4 is a schematic structural diagram of a power generation system provided in the first embodiment of the present application;
fig. 5 is a flowchart of cooling and heating provided in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a power generation system provided in the first embodiment of the present application;
FIG. 7 is a schematic structural diagram six of a power generation system provided in the first embodiment of the present application;
fig. 8 is a schematic structural diagram seven of a power generation system provided in the first embodiment of the present application;
fig. 9 is a schematic structural diagram eight of a power generation system provided in the first embodiment of the present application;
wherein, in the figures, the respective reference numerals:
1, a hydrogen production and power generation module; 101, a first converter; 102, a hydrogen production device by water electrolysis; 103, hydrogen storage means; 104, high temperature oxide hydrogen fuel cell reactor; 105, a second converter;
2, a light storage module; 201, a solar power generation module; 2011, photovoltaic power generation units; 2012, a solar controller; 2013, a protection device; 202, an energy storage module; 2021, a fourth inverter; 2022, an energy storage device; 2023, storage converter;
3, a cold-hot electric connection module 3; 301, a third inverter; 302, a load device;
4, a power utilization module; 401, a direct current power distribution cabinet; 402, an independent power distribution unit distribution control storage integrated machine; 403, using an electric direct current bus; 404, low voltage dc load.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present application, it is to be understood that the terms "inner," "outer," "upper," "bottom," "front," "back," and the like, if any, refer to an orientation or positional relationship that is merely convenient for describing the application and simplifying the description, but does not indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be taken as limiting the application.
The application provides a power generation system, can solve the electric problem of abandoning that photovoltaic power generation exists.
The power generation system provided by the application is exemplarily described with reference to the following drawings.
Fig. 1 is a schematic structural diagram of a power generation system provided by the present application, where the power generation system includes a hydrogen production power generation module 1 and a light storage module 2, and both the hydrogen production power generation module 1 and the light storage module 2 are connected to a high-voltage dc bus, it can be understood that the two modules correspond to a circuit (i.e., are integrated), and it is worth explaining that, in the present application, the specific positional relationship between the hydrogen production power generation module 1 and the light storage module 2 is not limited, as long as the hydrogen production power generation module 1 and the light storage module 2 are connected to the same external high-voltage dc bus, and thus, the present application is not limited. The hydrogen production power generation module 1 is used for producing hydrogen according to the first high-voltage direct current provided by the high-voltage direct current bus, generating power through the hydrogen to obtain a second high-voltage direct current, connecting the second high-voltage direct current to the high-voltage direct current bus, and the light storage module 2 is used for connecting a third high-voltage direct current to the high-voltage direct current bus through photovoltaic power generation.
The power generation system that this application provided links to each other hydrogen production power generation module 1 and light storage module 2 through same high-voltage direct current bus, consequently, the third high-voltage direct current that light storage module 1 output both can provide electric power for the user, can provide the direct current to hydrogen production power generation module 1 through the high-voltage direct current bus again, this application sets up hydrogen production power generation module 1 and light storage module 2 together, has solved the problem of abandoning the electricity that exists when only photovoltaic power generation.
In one example, as shown in fig. 2, the hydrogen production and power generation module 1 may include a first converter 101, an electrolytic water hydrogen production apparatus 102, a hydrogen storage apparatus 103, a high temperature oxide hydrogen fuel cell reactor 104, and a second converter 105.
The first converter 101 may be connected to the high-voltage direct current bus to convert the first high-voltage direct current provided by the high-voltage direct current bus into a first variable high-voltage direct current, and output the first variable high-voltage direct current to the water electrolysis hydrogen production apparatus 102, where it is understood that the variable high-voltage direct current refers to that the magnitude of the output high-voltage direct current may be determined according to an actual situation, that is, in this case, the magnitude of the output high-voltage direct current may be just produced into hydrogen by the water electrolysis hydrogen production apparatus 102, and therefore, there is no excessive energy loss.
Optionally, the first converter 101 may be a unidirectional Direct Current (DC) -Direct Current (DC) converter, that is, a (DC/DC) converter, where unidirectional means that an input end (that is, an end connected to the high-voltage DC bus) of the first converter 101 can only receive the first high-voltage DC provided by the high-voltage DC bus, an output end (that is, an end connected to the hydrogen production apparatus 102 for electrolyzed water) of the first converter 101 can only output the first variable high-voltage DC, and a transmission direction of the high-voltage DC is irreversible, so that when the first converter 101 is a bidirectional converter, the output first variable high-voltage DC is prevented from returning to the high-voltage DC bus, thereby affecting a hydrogen production effect of the hydrogen production apparatus 102 for electrolyzed water.
The water electrolysis hydrogen production device 102 mainly functions to electrolyze water to produce hydrogen according to the first variable high-pressure conversion, and store the produced hydrogen to the hydrogen storage device 103. The electrolytic tank in the water electrolysis hydrogen production device 102 stores water, and the water in the electrolytic tank is decomposed into hydrogen and oxygen under the action of the first variable direct current, so that the hydrogen is prepared. The decomposed hydrogen and oxygen and the circulating electrolyte in the water electrolysis hydrogen production device 102 enter a hydrogen and oxygen separation scrubber in the frame respectively, and are subjected to gas-liquid separation, washing and cooling. The separated electrolyte is mixed with pure water supplemented in the water electrolysis hydrogen production device 102, and then is sent back to the electrolytic bath through the alkali liquor cooler, the alkali liquor circulating pump and the filter to continue circulating electrolysis. The working temperature of the electrolytic cell can be controlled by adjusting the flow of cooling water of the alkali liquor cooler and controlling the temperature of the returned alkali liquor, so that the hydrogen production device 102 by electrolyzing water can run safely, the first variable direct current output by the first converter 101 can be produced into hydrogen by the hydrogen production device 102 by electrolyzing water to the maximum extent, and the hydrogen production effect is ensured.
The hydrogen storage device 103 can store the hydrogen produced by the water electrolysis hydrogen production device 102, so that the hydrogen can be converted into second high-voltage direct current in the following process, if the hydrogen storage device 103 is not arranged, the high-temperature oxide hydrogen fuel cell reactor 104 is directly arranged behind the water electrolysis hydrogen production device 102, and a large amount of hydrogen loss exists in the process of converting the hydrogen into the second direct current, therefore, the hydrogen storage device 103 needs to be arranged behind the water electrolysis hydrogen production device 102, so that the hydrogen is completely stored, the problem of hydrogen loss is avoided, and the power generation effect of the hydrogen production power generation module 1 is ensured.
Optionally, the hydrogen storage device 103 may be a high-pressure gaseous hydrogen storage device, which means that hydrogen is compressed and stored in a high-density gaseous form under high pressure, and has low cost and strong applicability (i.e. the working conditions of the device are wide).
It can be understood that, when the hydrogen produced by the water electrolysis hydrogen production device 102 in the power generation device is not enough to drive the high-temperature oxide hydrogen fuel cell reactor 104 to generate power, the hydrogen can be supplied to the hydrogen storage device 103 through external supply, the supplied hydrogen and the hydrogen produced by the water electrolysis hydrogen production device 102 are uniformly stored in the hydrogen storage device 103, and then the hydrogen is supplied to the high-temperature oxide hydrogen fuel cell reactor 104 to generate power.
After receiving enough hydrogen, the high temperature oxide hydrogen fuel cell reactor 104 may generate electricity and provide the fourth dc power generated by the electricity generation to the second inverter 105, and a large amount of heat energy may be generated during the electricity generation process of the high temperature oxide hydrogen fuel cell reactor 104, and this part of heat energy may be ignored by people, but if this part of heat energy can be effectively utilized, the utilization effect of the energy is further improved.
In one example, in order to effectively utilize the heat energy generated by the high-temperature oxide hydrogen fuel cell reactor 104 during the power generation process, as shown in fig. 3, the power generation system provided by the present application further includes a cogeneration module 3, and the cogeneration module 3 can cool and heat the heat energy generated by the high-temperature oxide hydrogen fuel cell reactor 104 for use, so that this portion of the heat energy can be effectively utilized.
Illustratively, an exhaust gas heat exchanger is disposed in the high-temperature oxide hydrogen fuel cell reactor 104, and the exhaust gas heat exchanger can convert high-temperature exhaust gas generated by the high-temperature oxide hydrogen fuel cell reactor 104 into heat energy and output the heat energy to the cogeneration module 3, and it can be understood that the exhaust gas heat exchanger and the cogeneration module 3 can pass through a high-temperature steam pipeline to ensure that the heat energy can be transmitted to the cogeneration module 3.
Alternatively, the exhaust gas recuperators may be an anode exhaust gas recuperator and a cathode exhaust gas recuperator, corresponding to the anode and cathode in the high temperature oxide hydrogen fuel cell reactor 104.
In one example, as shown in fig. 4, the cogeneration module 3 may include a third inverter 301 and a load device 302. The third converter 301 may convert the first high-voltage direct current provided by the high-voltage direct current bus into a second variable high-voltage direct current, where the second variable high-voltage direct current is a driving current of the load device 302.
Alternatively, the third converter 301 may be a unidirectional Direct Current (DC) -Alternating Current (AC) converter, i.e., a (DC/AC) converter.
The load device 302 is connected to the high-temperature oxide hydrogen fuel cell reactor 104 through a high-temperature steam pipeline, and is configured to cool or heat the high-temperature gas obtained from the high-temperature oxide hydrogen fuel cell reactor 104 through the high-temperature steam pipeline according to the second variable high-voltage direct current.
Alternatively, the load device 302 may be a refrigeration device that can refrigerate heat generated during operation of the high temperature oxide hydrogen fuel cell reactor 104. For example, a lithium bromide absorption refrigeration air conditioner receives heat and then performs refrigeration to output a cooling load (cold air or the like).
Alternatively, the load device 302 may be a heating device, and the cooling device may heat the heat generated by the operation of the high temperature oxide hydrogen fuel cell reactor 104. For example, the hot water storage tank may store the received heat and finally output a heat load (warm air, etc.).
Alternatively, as shown in fig. 5, the load device 302 may include a refrigerating device and a heating device, and a part of the waste generated by the high temperature oxide hydrogen fuel cell reactor 104 is converted into heat energy by the anode waste gas heat exchanger and output to the lithium bromide absorption refrigeration air conditioner for refrigeration, and a part of the waste is converted into heat energy by the cathode waste gas heat exchanger and output to the heat storage water tank for heating.
In one example, as shown in fig. 6, a distributed dc air conditioner 5 may be further provided in the power generation system, the distributed dc air conditioner 5 is directly connected to the high-voltage dc bus, and may convert the first high-voltage dc into a cooling load output, and the distributed dc air conditioner 5 may be a household air conditioner or the like.
In one example, as shown in fig. 7, the light storage module 2 may include a solar power generation module 201, the light storage module 2 includes the solar power generation module 201, the solar power generation module 201 includes a photovoltaic power generation unit 2011 and a solar controller 2012, and the photovoltaic power generation unit 2011 may convert solar energy into a third high-voltage direct current and connect the third high-voltage direct current to the high-voltage direct current bus through the solar controller 2012. Namely, direct current can be provided for the high-voltage direct current bus and the hydrogen production power generation module 1 through photovoltaic power generation.
Optionally, since photovoltaic power generation is easily affected by environmental factors, in order to ensure the power generation effect of the light storage module 2, a protection device 2013 may be further provided, and the protection device 2013 is connected in series between the photovoltaic power generation unit 2011 and the solar controller 2012.
Illustratively, the protector 2013 may be a lightning protector.
In order to avoid that the direct current output by the optical storage module 2 is not enough for the power utilization module 4 to use, the application is further provided with the energy storage module 202, the energy storage module 202 not only can store the first high-voltage direct current provided by the high-voltage direct current bus, but also can be connected with the urban alternating current power grid, and the direct current output by the urban alternating current power grid can also be stored in the energy storage device 202, so as to ensure that the direct current output by the optical storage module 2 is enough for the power utilization module 4 to use.
It is worth mentioning that the consumer module 4 is used to convert the presently available electrical energy into low-voltage dc power for transmission to a low-voltage dc load connected to the dc distribution device.
In one example, the power utilization module 4 may include a dc power distribution cabinet 401, an independent power distribution unit distribution and storage integrated machine 402, a power utilization dc bus 403, and a low voltage dc load 404 as shown in fig. 8. The direct current power distribution cabinet 401 and the independent power distribution unit distribution control storage integrated machine 402 output the first direct current shunt on the external high-voltage direct current bus to the power utilization direct current bus 403, and the power utilization direct current bus 403 can convert the first direct current (namely, high voltage) into low-voltage direct current to be output to the low-voltage direct current load 404 for users to use.
For example, the power module 4 may be other application scenarios such as lighting.
In one example, as shown in fig. 9, the energy storage module 202 includes a fourth converter 2021 and an energy storage device 2022, where the fourth converter 2021 may convert the first high-voltage direct current obtained from the high-voltage direct current bus into a second variable high-voltage direct current and store the second variable high-voltage direct current in the energy storage device 2022, and may further convert the second variable high-voltage direct current transmitted by the energy storage device 2022 into the first high-voltage direct current and connect to the high-voltage direct current bus for use by a user.
It should be noted that, since the energy storage device 2022 both extracts dc power from the high-voltage dc bus and outputs dc power to the high-voltage dc bus, the fourth converter 2021 is a bidirectional converter. Such as a bi-directional (DC/DC) converter.
In one example, the energy storage module 202 may further include an energy storage converter 2023, where the energy storage converter 2023 is connected to the ac grid, and is configured to convert ac power obtained from the ac grid into second variable high-voltage dc power and store the second variable high-voltage dc power to the energy storage module 202 for subsequent use.
It is to be noted that the first high voltage direct current, the second high voltage direct current and the third high voltage direct current mentioned in the present application have the same current magnitude, for example, the first high voltage direct current, the second high voltage direct current and the third high voltage direct current may all be 375V (volt).
The application provides a power generation system, through being connected to same high voltage direct current bus with hydrogen manufacturing power generation module 1 and light storage module 2, make hydrogen manufacturing power generation module 1 both can obtain high voltage direct current from light storage module 2 and prepare hydrogen, can obtain direct current through using high voltage direct current bus again and prepare hydrogen, the generating effect of totality has been improved, even make light storage module 2 receive environmental factor electricity generation to produce the deviation, also can provide high voltage direct current for hydrogen manufacturing power generation module 1, provide required electric power for the user. In addition, the cold-hot electricity combination module 3 is arranged, so that heat generated by the high-temperature oxide hydrogen fuel cell reactor 104 in the hydrogen production and power generation module 1 can be effectively utilized.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The power generation system is characterized by comprising a high-voltage direct-current bus, a hydrogen production power generation module (1) and a light storage module (2), wherein the hydrogen production power generation module (1) and the light storage module (2) are connected with the high-voltage direct-current bus, and the high-voltage direct-current bus is used for being connected to a power grid;
the hydrogen production power generation module (1) is used for producing hydrogen according to the first high-voltage direct current provided by the high-voltage direct current bus, generating power through the hydrogen to obtain a second high-voltage direct current, and then connecting the second high-voltage direct current into the high-voltage direct current bus;
and the light storage module (2) is used for accessing a third high-voltage direct current to the high-voltage direct current bus through photovoltaic power generation.
2. The power generation device according to claim 1, wherein the hydrogen production and power generation module (1) comprises a first converter (101), a water electrolysis hydrogen production device (102), a hydrogen storage device (103), a high temperature oxide hydrogen fuel cell reactor (104), and a second converter (105);
the first converter (101) is used for converting the first high-voltage direct current into a first variable high-voltage direct current and outputting the first variable high-voltage direct current to the water electrolysis hydrogen production device (102);
the water electrolysis hydrogen production device (102) is used for electrolyzing water to produce hydrogen according to the first variable high-voltage direct current conversion and storing the obtained hydrogen to the hydrogen storage device (103);
the high-temperature oxide hydrogen fuel cell reactor (104) is used for generating power according to the hydrogen transmitted by the hydrogen storage device (103) and outputting fourth high-voltage direct current to the second converter (105);
the second converter (105) is configured to convert the fourth high-voltage direct current into a second high-voltage direct current, and to connect the second high-voltage direct current to the high-voltage direct current bus.
3. The power generation system according to claim 2, wherein the high temperature oxide hydrogen fuel cell reactor (104) comprises an exhaust gas heat exchanger, the exhaust gas heat exchanger is connected with the cogeneration module (3) and is used for converting high temperature exhaust gas generated by the high temperature oxide hydrogen fuel cell reactor (104) into heat energy and outputting the heat energy to the cogeneration module (3), and the cogeneration module (3) converts the heat energy.
4. A power generation system according to claim 3, further comprising the cogeneration module (3), the cogeneration module (3) comprising a third converter (301) and a load device (302), the third converter (301) being configured to convert the first high voltage dc power provided by the high voltage dc bus to a second variable high voltage dc power;
the load device (302) is connected with the high-temperature oxide hydrogen fuel cell reactor (104) through a high-temperature steam pipeline and is used for refrigerating or heating high-temperature gas obtained from the high-temperature oxide hydrogen fuel cell reactor (104) through the high-temperature steam pipeline according to second variable high-voltage direct current.
5. The power generation system according to claim 1, wherein the light storage module (2) comprises a solar power generation module (201), the solar power generation module (201) comprising a photovoltaic power generation unit (2011) and a solar controller (2012);
photovoltaic power generation unit (2011) is used for with solar energy conversion becomes third high-voltage direct current, and pass through solar control ware (2012) will third high-voltage direct current inserts the high-voltage direct current generating line.
6. The power generation system according to claim 5, characterized in that the solar power module (201) further comprises a protection device (2013), the protection device (2013) being connected in series between the photovoltaic power unit (2011) and the solar controller (2012).
7. An electric power generation system according to claim 5, characterized in that the light storage module (2) further comprises an energy storage module (202), the energy storage module (202) comprising a fourth converter (2021) and an energy storage device (2022);
the fourth converter (2021) is used for converting the first high-voltage direct current acquired from the high-voltage direct current bus into a second variable high-voltage direct current and storing the second variable high-voltage direct current in the energy storage device (2022); the high-voltage direct current power supply is also used for converting the second variable high-voltage direct current transmitted by the energy storage device (2022) into the first high-voltage direct current and then connecting the first high-voltage direct current to the high-voltage direct current bus.
8. The power generation system according to claim 7, wherein the energy storage module (202) further comprises an energy storage converter (2023), the energy storage converter (2023) being connected to the city ac grid for converting ac power taken from the city ac grid into the second variable high voltage dc power and storing the second variable high voltage dc power to the energy storage module (202).
9. An electric power generation system according to any of claims 1-8, characterized in that the electric power generation system further comprises at least one electricity consuming module (4), which electricity consuming module (4) is connected to the high voltage direct current bus for obtaining electric power from the high voltage direct current bus.
10. An electric power generation system according to claim 9, characterized in that the consumer module (4) comprises a dc distribution device (401), the dc distribution device (401) being adapted to convert presently obtained electric energy into low voltage dc power for transmission to a low voltage dc load connected to the dc distribution device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116526684A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
| WO2024041711A1 (en) * | 2022-08-24 | 2024-02-29 | Vestas Wind Systems A/S | Improved power-to-x network architecture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041711A1 (en) * | 2022-08-24 | 2024-02-29 | Vestas Wind Systems A/S | Improved power-to-x network architecture |
| CN116526684A (en) * | 2023-06-30 | 2023-08-01 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
| CN116526684B (en) * | 2023-06-30 | 2024-04-05 | 中国科学院宁波材料技术与工程研究所 | Electric energy storage device and system |
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