CN114024327B - Renewable energy source based power generation multifunctional complementary control system and method - Google Patents
Renewable energy source based power generation multifunctional complementary control system and method Download PDFInfo
- Publication number
- CN114024327B CN114024327B CN202111397069.9A CN202111397069A CN114024327B CN 114024327 B CN114024327 B CN 114024327B CN 202111397069 A CN202111397069 A CN 202111397069A CN 114024327 B CN114024327 B CN 114024327B
- Authority
- CN
- China
- Prior art keywords
- power
- control system
- power generation
- hydrogen production
- hydrogen
- 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
- 238000010248 power generation Methods 0.000 title claims abstract description 98
- 230000000295 complement effect Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 201
- 239000001257 hydrogen Substances 0.000 claims abstract description 199
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 199
- 238000003860 storage Methods 0.000 claims abstract description 128
- 238000004519 manufacturing process Methods 0.000 claims abstract description 117
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 58
- 239000000446 fuel Substances 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 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
- 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
-
- 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
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
-
- 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
-
- 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
- C25B9/70—Assemblies comprising two or more cells
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- 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
-
- 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
- H02J3/381—Dispersed generators
-
- 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
-
- 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
- H02J2300/28—The renewable source being wind energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Fuel Cell (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a renewable energy power generation based multifunctional complementary control system and a renewable energy power generation based multifunctional complementary control method. In the grid-connected state, the external grid load requirement is preferably met, and the residual electric energy is consumed and stored through storage battery charging and water electrolysis hydrogen production. When the external grid requirements cannot be met, the external grid requirements can be compensated by discharging the storage battery and generating electricity by the fuel cell; in the off-grid state, the generated electric energy is used for electrolyzing water to prepare hydrogen; the storage battery pack can be charged when the electric energy is surplus, and is supplied with power for the water electrolysis hydrogen production system when the electric energy is insufficient, so that the storage battery pack has the advantages of flexible regulation and control and ensuring the stability of power supply of a power grid.
Description
Technical Field
The invention belongs to the technical field of energy utilization, and particularly relates to a renewable energy based power generation multifunctional complementary control system and method.
Background
In recent years, along with the increasing prominence of environmental pollution, various countries in the world pay attention to the development of new energy, photovoltaic power generation and wind power generation as renewable energy power generation, and the characteristics of high efficiency, cleanliness, sustainable zero carbon and the like gain wide attention of people, and the photovoltaic power generation system is rapidly developed in China. The wind and light resources in China are quite rich, but the regional trend is quite obvious, so that the resources and the demands cannot be well matched in time and space, and the energy waste is caused. The wind-solar energy resource is reasonably utilized, and a conversion and storage link of energy is needed to be added, so that the optimal configuration of the resource is achieved.
Currently, renewable energy power generation systems still have some problems:
1. wind-solar resource power generation is often concentrated in a specific time period, such as in the daytime when sunlight is strong or in the windy season, so that the concentrated grid-connected electric quantity is often mismatched with the electric quantity acceptable by an external power grid in time and space, and the regulation and control capability is poor.
2. Renewable energy power generation, especially wind and light power generation, has the characteristics of intermittence, fluctuation and the like, and also brings challenges to the safety and stability of a power grid.
Disclosure of Invention
In order to solve the technical problems, the invention provides a renewable energy source-based power generation multifunctional complementary control system and a renewable energy source-based power generation multifunctional complementary control method.
The specific scheme is as follows:
the utility model provides a control system based on renewable energy power generation multipotency complementation, includes direct current busbar, central integrated control system, wind generating set, photovoltaic cell board, storage battery, electrolyzed water hydrogen production system, hydrogen storage system, hydrogen fuel cell power generation system, wind generating set, photovoltaic cell board storage battery and electrolyzed water hydrogen production system all are connected through the direct current busbar electricity, electrolyzed water hydrogen production system passes through hydrogen storage system and hydrogen fuel cell power generation system pipe connection, hydrogen fuel cell power generation system with direct current busbar electricity is connected, wind generating set, photovoltaic cell board, storage battery, electrolyzed water hydrogen production system, hydrogen storage system and hydrogen fuel cell power generation system all with central integrated control system electricity is connected.
The complementary control system further comprises a monitoring system and a control system, wherein the monitoring system comprises a power collector, a storage battery capacity tester and a pressure sensor, the control system comprises a storage battery charge-discharge management controller, a power generation equipment load controller, a hydrogen production power regulation controller, a grid-connected controller and a hydrogen fuel cell power generation controller, the power collector, the storage battery capacity tester, the pressure sensor, the storage battery charge-discharge management controller, the power generation equipment load controller, the hydrogen production power regulation controller, the grid-connected controller and the hydrogen fuel cell power generation controller are all electrically connected with a central integrated control system, and the central integrated control system is a central controller.
The power generation system comprises a wind generating set, a photovoltaic cell panel, a water electrolysis hydrogen production system and a hydrogen fuel cell power generation system, wherein the wind generating set, the photovoltaic cell panel, the water electrolysis hydrogen production system and the hydrogen fuel cell power generation system are all connected with power collectors, a storage battery capacity tester is connected to the storage battery, and a pressure sensor is fixed to the hydrogen storage system.
The complementary control system further comprises an external power grid load, a booster, an AC/DC rectifier, a DC/DC rectifier and a DC/AC inverter, the wind generating set is electrically connected with a direct current bus through the AC/DC rectifier, the photovoltaic cell panel, the storage battery pack, the electrolyzed water hydrogen production system and the hydrogen fuel cell power generation system are all electrically connected with the direct current bus through the DC/DC rectifier, and the direct current bus is electrically connected with the external power grid load through the DC/AC inverter and the booster.
The water electrolysis hydrogen production system comprises at least two hydrogen production branches, each hydrogen production branch is further provided with an electromagnetic valve, each hydrogen production branch is connected in parallel through the electromagnetic valve, each hydrogen production branch further comprises at least two electrolysis chambers, the at least two electrolysis chambers are connected in series, and the electromagnetic valve is electrically connected with the central integrated control system.
The hydrogen storage system comprises a buffer tank, a compressor and an air storage tank, wherein the buffer tank is connected with the air storage tank through a pipeline of the compressor.
A control method of a renewable energy power generation multifunctional complementary control system comprises the following steps:
step S1): the central integrated control system respectively collects renewable energy power generation output power P through the monitoring system R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F Rated power P of electrolytic water hydrogen production system En Minimum operating power P of electrolytic water hydrogen production system Emin And the power P of the hydrogen production system by water electrolysis E ，
The renewable energy source generates power output power P R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F And the power P of the hydrogen production system by water electrolysis E Satisfies a system power balance equation, wherein the system power balance equation is P R +P F = P L +P B +P E ；
Step S2): the central integrated control system judges grid-connected absorption power P L Whether it is zero or not,
if P L If not equal to 0, the grid-connected state is adopted, and the step S3 is carried out;
if P L If 0, the network is off-line, and the step S9 is performed;
step S3): the complementary control system enters a grid-connected state, and the central integrated control system judges the renewable energy power generation output power P R Whether or not the grid-connected absorption power P is satisfied L ，
If not, P R ＜P L The central integrated control system starts the discharge of the storage battery through the control system, simultaneously starts the hydrogen fuel cell power generation system, and goes to the step S2);
if it meets, P R ≥P L Step S4) is carried out;
step S4): the central integrated control system judges the renewable energy power generation output power P R Whether or not is less than grid-connected absorption power P L And battery power P B The sum of the two values,
if smaller than or equal toIn, P R ≤P L +P B The wind generating set and the photovoltaic cell panel supply power to the external grid load, meanwhile, the storage battery pack is charged, and the step S2 is carried out;
if greater than, i.e. P R ＞P L +P B Turning to step S5);
step S5): the central integrated control system judges the renewable energy power generation output power P R Whether or not it is smaller than the grid-connected absorbed power P L Battery power P B And the power P of the water electrolysis hydrogen production system (8) E The sum of the three components is that,
if less than, i.e. P R ＜P L +P B +P E The central integrated control system calculates the renewable energy power generation output power P R Absorbed power P with grid connection L And battery power P B Is a difference DeltaP between (1) 1 ，△P 1 =P R -P L -P B The method comprises the steps of carrying out a first treatment on the surface of the And go to step S6);
if not less than P R ≥P L +P B +P E Step S8) is carried out;
step S6): the central integrated control system judges delta P 1 Whether or not the electrolytic water hydrogen production system can be supported at the lowest operating power P Emin Operation
If it is impossible, delta P 1 <P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
if it can, namely DeltaP 1 ≥P Emin Step S7) is carried out;
step S7): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to be smaller than rated power P En Mode (2) and then go to step (2);
if not less than, P is more than or equal to P wmax The hydrogen production system by electrolysis of water is not started, and the storage battery pack is simultaneously subjected toCharging and turning to step S2);
step S8): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to operate according to rated power, and simultaneously charges the storage battery pack, and the step S2 is carried out;
if not less than, P is more than or equal to P wmax The hydrogen production system by water electrolysis is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
step S9): the complementary control system enters an off-grid state, and the central integrated control system judges the renewable energy power generation output power P R Can simultaneously meet the operation of a storage battery charging and water electrolysis hydrogen production system,
if it cannot meet, namely P R ＜P B +P E Then go to step S10);
if it can meet, namely P R ≥ P B +P E Then go to step S12):
step S10): the central integrated control system judges the renewable energy power generation output power P R Whether the electrolytic water hydrogen production system can be satisfied with the minimum operating power P Emin The operation is carried out by the method,
if it cannot meet, namely P R ＜P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
if it meets, P R ≥P Emin And P is R ＜P B +P E Then go to step S11);
step S11): the central integrated control system calculates the renewable energy power generation output power P R Whether the water electrolysis hydrogen production system can be satisfied with rated power P En The operation is carried out by the method,
if it meets, i.e. P R ≥P En Then go to step S12);
if not, P R ＜P En Then go to step S13；
Step S12): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the electrolytic water hydrogen production system to operate according to rated power and simultaneously uses P R -P En Is charged by the storage battery, and the step S2 is carried out;
if not less than, P is more than or equal to P wmax The electrolytic water hydrogen production system (8) is not started, and meanwhile P is adopted R Is charged by the storage battery, and the step S2 is carried out;
step S13): the central integrated control system judges whether the current air pressure P in the hydrogen storage system (9) is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to generate power P R Mode (2) and then go to step (2);
if not less than, P is more than or equal to P wmax The hydrogen production system by electrolysis of water is not started, and meanwhile, P is used R Is charged into the battery and goes to step S2).
The invention discloses a renewable energy source-based power generation multifunctional complementary control system and a renewable energy source-based power generation multifunctional complementary control method, which can enable renewable energy sources on a wind generating set and a photovoltaic cell panel to be energy complementary with a storage battery, an electrolytic water hydrogen production system, a hydrogen storage system and a hydrogen fuel cell power generation system under grid connection and grid disconnection states, have the technical effect of flexible regulation and control, and in addition, the electrolytic water hydrogen production system can control the number of branches participating in hydrogen production so as to ensure matching with obtained electric energy. When the distributed electric energy is more, the number of hydrogen production branches put into operation is more; on the contrary, the number of hydrogen production branches put into operation is small, the intermittent and fluctuation of wind-light power generation is well adapted, and the stability of power supply of a power grid is ensured.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the system of the present invention.
Fig. 2 is a schematic structural diagram of a renewable energy power generation multifunctional complementary control system connected with a direct current bus.
FIG. 3 is a schematic diagram of a grid-tie state and off-grid state selection process.
Fig. 4 is a schematic diagram of the adjustment flow in the grid-connected state.
Fig. 5 is a schematic diagram of the adjustment flow in the off-grid state.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. It will be apparent to those skilled in the art that the described embodiments are only a part, but not all, of the implementations of the invention, and that all other embodiments, based on which those skilled in the art will come to lie within the scope of the invention without making any inventive effort.
As shown in fig. 1, the renewable energy source-based power generation multifunctional complementary control system comprises a direct current bus 5, and further comprises a central integrated control system 1, a wind generating set 2, a photovoltaic cell panel 3, a storage battery 4, an electrolyzed water hydrogen production system 8, a hydrogen storage system 9 and a hydrogen fuel cell power generation system 13, wherein the wind generating set 2, the storage battery 4 of the photovoltaic cell panel 3 and the electrolyzed water hydrogen production system 8 are electrically connected through the direct current bus 5, the electrolyzed water hydrogen production system 8 is connected with the hydrogen fuel cell power generation system 13 through the hydrogen storage system 9 in a pipeline, the hydrogen fuel cell power generation system 13 is electrically connected with the direct current bus 5, and the wind generating set 2, the photovoltaic cell panel 3, the storage battery 4, the electrolyzed water hydrogen production system 8, the hydrogen storage system 9 and the hydrogen fuel cell power generation system 13 are electrically connected with the central integrated control system 1.
The complementary control system adopts a wind-solar combined energy input mode, solar light and wind are converted into electric energy through the wind generating set and the photovoltaic cell panel, wind-solar resource complementation can be achieved, power supply is safer and more stable, the central integrated control system is an energy management and regulation core of the whole system, and the central integrated control system can receive operation parameters of all devices in the system in real time and regulate and control all relevant devices according to instructions.
The complementary control system 7 further comprises a monitoring system 6 and a control system 7, wherein the monitoring system 6 comprises a power collector, a storage battery capacity tester and a pressure sensor, the control system 7 comprises a storage battery charge-discharge management controller, a power generation equipment load controller, a hydrogen production power regulation controller, a grid-connected controller and a hydrogen fuel cell power generation controller, the power collector, the storage battery capacity tester, the pressure sensor, the storage battery charge-discharge management controller, the power generation equipment load controller, the hydrogen production power regulation controller, the grid-connected controller and the hydrogen fuel cell power generation controller are all electrically connected with the central integrated control system 1, and the central integrated control system 1 is a central controller. In this embodiment, each controller is any one or two of a single chip microcomputer and a PLC.
The monitoring system 6 is mainly used for monitoring the operation parameters of equipment in the system in real time, and comprises renewable energy source output power monitoring, grid-connected absorption power monitoring, storage battery capacity monitoring, hydrogen production power monitoring, hydrogen storage system pressure monitoring and hydrogen fuel cell output power monitoring.
The control system 7 mainly responds to the data fed back by the monitoring system, and uniformly schedules the operation of each device according to the instruction, wherein the control system comprises a load control system for photovoltaic and fan power generation of the power generation device, a grid-connected control system, a storage battery charge-discharge control system, a hydrogen production power regulation control system, a hydrogen storage system charge-discharge control system and a fuel cell power generation control system.
The wind generating set 2, the photovoltaic cell panel 3, the water electrolysis hydrogen production system 8 and the hydrogen fuel cell power generation system 13 are all connected with power collectors, the storage battery pack 4 is connected with a storage battery capacity tester, and the hydrogen storage system 9 is fixedly provided with a pressure sensor.
As shown in fig. 2, the complementary control system further comprises an external grid load 19, a booster 18, an AC/DC rectifier 16, a DC/DC rectifier 15 and a DC/AC inverter 17, the wind generating set 2 is electrically connected with the direct current bus 5 through the AC/DC rectifier 16, the photovoltaic panel 3, the storage battery set 4, the electrolyzed water hydrogen production system 8 and the hydrogen fuel cell power generation system 13 are electrically connected with the direct current bus 5 through the DC/DC rectifier 15, and the direct current bus 5 is electrically connected with the external grid load 19 through the DC/AC inverter 17 and the booster 18.
The battery pack 4 used is a storage device. In the grid-connected state, the storage battery pack 4 can store redundant electric energy of the system, when the electric energy of the system is insufficient, the external grid difference can be compensated for in a short time through discharging, and the storage battery has fast response and can be complementary with the hydrogen fuel cell. In the off-grid state, the fully charged storage battery 4 can supply power to the water electrolysis hydrogen production system when the renewable energy source is insufficient in power generation, so that the running time of water electrolysis hydrogen production is prolonged.
The electrolytic water hydrogen production system 8 comprises at least two hydrogen production branches, each hydrogen production branch is further provided with an electromagnetic valve, each hydrogen production branch is connected in parallel through the electromagnetic valve, each hydrogen production branch further comprises at least two electrolytic chambers, the at least two electrolytic chambers are connected in series, and the electromagnetic valve is electrically connected with the central integrated control system.
Each hydrogen production branch can be controlled by opening and closing the electromagnetic valve to determine whether to participate in water electrolysis hydrogen production, and can be well adapted to renewable energy power generation with intermittence and volatility.
The hydrogen storage system 9 adopts high-pressure compression storage and comprises a buffer tank 10, a compressor 11 and a gas storage tank 12, wherein the buffer tank 10 is connected with the gas storage tank 12 through the compressor 11 in a pipeline manner.
The hydrogen fuel cell power generation system is one kind of energy converting device, and has hydrogen stored as reductant and oxygen as oxidant, and has oxidation-reduction reaction catalyzed by the catalyst inside the fuel cell to convert chemical energy into electric energy. When the renewable energy source power generation can not meet the requirements of the external power grid, the system starts the hydrogen fuel cell power generation system to continuously supply power to the external power grid load.
The energy of the system comes from wind and light resources in nature, is converted into electric energy through a wind generating set and a photovoltaic cell panel, and is collected on a direct current bus. In the grid-connected state, the monitoring system judges the working state of the system by analyzing the grid-connected absorption power PL and the renewable energy source output power PR on the direct current bus. When PR is more than or equal to PL, the output power of renewable energy exceeds the load demand of an external power grid, the energy in the system is excessive, and the energy is distributed to a storage battery charging and water electrolysis hydrogen production system to consume and store the excessive electric energy; when PR is smaller than PL, the output power PR of the renewable energy source can not meet the load requirement of the external power grid, and the storage battery pack is started to discharge and the hydrogen fuel cell is started to generate electricity so as to make up the deficiency.
In off-grid conditions, electricity from renewable energy sources is no longer supplied to external grid loads, but is preferentially supplied to the electrolyzed water hydrogen production system, and if electrical energy is still left, the electrical energy is stored by charging a storage battery. When the renewable energy source is insufficient in power generation, the storage battery provides electric energy to maintain the operation of the water electrolysis hydrogen production system.
The specific control method comprises the following steps:
as shown in fig. 3 to 5, a control method of a renewable energy power generation multi-energy complementary control system includes the steps of:
step S1): the central integrated control system respectively collects renewable energy power generation output power P through the monitoring system R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F Rated power P of electrolytic water hydrogen production system En Minimum operating power P of electrolytic water hydrogen production system Emin And the power P of the hydrogen production system by water electrolysis E ，
The renewable energy source generates power output power P R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F And the power P of the hydrogen production system by water electrolysis E Satisfies a system power balance equation, wherein the system power balance equation is P R +P F = P L +P B +P E ；
Step S2): the central integrated control system judges grid-connected absorption power P L Whether it is zero or not,
if P L If not equal to 0, the grid-connected state is adopted, and the step S3 is carried out;
if P L If 0, the network is off-line, and the step S9 is performed;
step S3): the complementary control system enters a grid-connected state and is integrated in the centerThe control system judges the renewable energy power generation output power P R Whether or not the grid-connected absorption power P is satisfied L ，
If not, P R ＜P L The central integrated control system starts the discharge of the storage battery through the control system, simultaneously starts the hydrogen fuel cell power generation system, and goes to the step S2); at this time, the complementary control system is in a mode one working state;
if it meets, P R ≥P L Step S4) is carried out;
step S4): the central integrated control system judges the renewable energy power generation output power P R Whether or not is less than grid-connected absorption power P L And battery power P B The sum of the two values,
if less than or equal to, P R ≤P L +P B The wind generating set and the photovoltaic cell panel supply power to the external grid load, meanwhile, the storage battery pack is charged, and the step S2 is carried out; at this time, the complementary control system is in a working state of mode two;
if greater than, i.e. P R ＞P L +P B Turning to step S5);
step S5): the central integrated control system judges the renewable energy power generation output power P R Whether or not it is smaller than the grid-connected absorbed power P L Battery power P B And the power P of the water electrolysis hydrogen production system (8) E The sum of the three components is that,
if less than, i.e. P R ＜P L +P B +P E The central integrated control system calculates the renewable energy power generation output power P R Absorbed power P with grid connection L And battery power P B Is a difference DeltaP between (1) 1 ，△P 1 =P R -P L -P B The method comprises the steps of carrying out a first treatment on the surface of the And go to step S6);
if not less than P R ≥P L +P B +P E Step S8) is carried out;
step S6): the central integrated control system judges delta P 1 Whether or not the electrolytic water hydrogen production system can be supported at the lowest running workRate P Emin Operation
If it is impossible, delta P 1 <P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out; at this time, the complementary control system is in the working state of mode three;
if it can, namely DeltaP 1 ≥P Emin Step S7) is carried out;
step S7): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to be smaller than rated power P En Mode (2) and then go to step (2); at this time, the complementary control system is in the working state of mode four;
if not less than, P is more than or equal to P wmax The hydrogen production system by water electrolysis is not started, the storage battery pack is charged at the same time, and the step S2 is carried out; at this time, the complementary control system is in the working state of mode five;
step S8): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to operate according to rated power, and simultaneously charges the storage battery pack, and the step S2 is carried out; at this time, the complementary control system is in the working state of mode six;
if not less than, P is more than or equal to P wmax The hydrogen production system by water electrolysis is not started, the storage battery pack is charged at the same time, and the step S2 is carried out; at this time, the complementary control system is in the mode seven operating state;
as shown in fig. 5, step S9): the complementary control system enters an off-grid state, and the central integrated control system judges the renewable energy power generation output power P R Can simultaneously meet the operation of a storage battery charging and water electrolysis hydrogen production system,
if it cannot meet, namely P R ＜P B +P E Then go to step S10);
if it can meet, namely P R ≥ P B +P E Then go to step S12):
step S10): the central integrated control system judges the renewable energy power generation output power P R Whether the electrolytic water hydrogen production system can be satisfied with the minimum operating power P Emin The operation is carried out by the method,
if it cannot meet, namely P R ＜P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out; at this time, the complementary control system is in a mode ten operating state;
if it meets, P R ≥P Emin And P is R ＜P B +P E Then go to step S11);
step S11): the central integrated control system calculates the renewable energy power generation output power P R Whether the water electrolysis hydrogen production system can be satisfied with rated power P En The operation is carried out by the method,
if it meets, i.e. P R ≥P En Then go to step S12);
if not, P R ＜P En Then go to step S13);
step S12): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the electrolytic water hydrogen production system to operate according to rated power and simultaneously uses P R -P En Is charged by the storage battery, and the step S2 is carried out; at this time, the complementary control system is in the working state of mode eight;
if not less than, P is more than or equal to P wmax The electrolytic water hydrogen production system (8) is not started, and meanwhile P is adopted R Is charged by the storage battery, and the step S2 is carried out; at this time, the complementary control system is in the mode nine working state;
step S13): the central integrated control system judges the hydrogen storage system (9)Whether the current air pressure P is smaller than the maximum allowable operating air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to generate power P R Mode (2) and then go to step (2); at this time, the complementary control system is in the working state of mode eleven;
if not less than, P is more than or equal to P wmax The hydrogen production system by electrolysis of water is not started, and meanwhile, P is used R And (2) is charged by the storage battery, and the step S2) is carried out, and at the moment, the complementary control system is in a mode twelve working state.
The storage battery pack and the electrolytic water hydrogen production are important supplements for energy storage allocation in the system, the storage battery pack stores residual electric energy at ordinary times, and the system can serve as a supplementary power supply when the system is in power failure. In the grid-connected state, the distribution priority of the residual electric energy in the system is as follows: the storage battery is charged and is more than electrolyzed water to produce hydrogen, and the fully charged storage battery pack can make up the shortage of the external power grid when the load demand is insufficient in a short time.
In the off-grid state, the power allocation priorities within the system are: the hydrogen production by electrolysis of water is greater than the charging of a storage battery, and the system electric energy is mainly used for hydrogen production by electrolysis of water, and the charging of the storage battery is only used for supplying power to the hydrogen production system by electrolysis of water when no renewable energy source is generated. The storage battery adopted by the system is a lead-acid storage battery, and has the advantages of stable quality, high reliability, simple maintenance and the like. The capacity and voltage of the battery can be achieved by connecting a plurality of batteries in series to form a battery pack.
In this embodiment, the hydrogen gas produced by electrolyzing water is first pressure-stabilized and cooled by the buffer tank, then compressed into high-pressure hydrogen gas in the hydrogen gas compressor, and finally transported to the hydrogen storage tank for storage in a high-pressure gas mode. The monitoring system monitors the real-time pressure P of the hydrogen storage tank group, and only if the system meets the condition that P is less than or equal to Pwmax, hydrogen can be charged into the hydrogen storage system, otherwise, the hydrogen storage system is not started, the related result is fed back to the central integrated control system, and then the start and stop of the water electrolysis hydrogen production system can be controlled, and in addition, the residual hydrogen in the system can be output outwards through the hydrogen storage vehicle 14.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides a control method based on renewable energy power generation multipotency complementary control system, includes direct current busbar (5), central integrated control system (1), wind generating set (2), photovoltaic cell board (3), storage battery (4), electrolysis water hydrogen manufacturing system (8), hydrogen storage system (9), hydrogen fuel cell power generation system (13), wind generating set (2), photovoltaic cell board (3) storage battery (4) and electrolysis water hydrogen manufacturing system (8) all are through direct current busbar (5) electricity connection, electrolysis water hydrogen manufacturing system (8) are through hydrogen storage system (9) and hydrogen fuel cell power generation system (13) pipe connection, hydrogen fuel cell power generation system (13) with direct current busbar (5) electricity connection, wind generating set (2), photovoltaic cell board (3), storage battery (4), electrolysis water hydrogen manufacturing system (8), hydrogen storage system (9) and hydrogen fuel cell power generation system (13) all with central integrated control system (1) electricity connection, its characterized in that: comprises the following steps of the method,
step S1): the central integrated control system respectively collects renewable energy power generation output power P through the monitoring system R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F Rated power P of electrolytic water hydrogen production system En Minimum operating power P of electrolytic water hydrogen production system Emin And the power P of the hydrogen production system by water electrolysis E ，
The renewable energy source generates power output power P R Grid-connected absorption power P L Battery power P B Hydrogen fuel cell power P F And the power P of the hydrogen production system by water electrolysis E Satisfies a system power balance equation, wherein the system power balance equation is P R +P F = P L +P B +P E ；
Step S2): the central integrated control system judges grid-connected absorption power P L Whether it is zero or not,
if P L If not equal to 0, the grid-connected state is adopted, and the step S3 is carried out;
if P L If 0, the network is off-line, and the step S9 is performed;
step S3): the complementary control system enters a grid-connected state, and the central integrated control system judges the renewable energy power generation output power P R Whether or not the grid-connected absorption power P is satisfied L ，
If not, P R ＜P L The central integrated control system starts the discharge of the storage battery through the control system, simultaneously starts the hydrogen fuel cell power generation system, and goes to the step S2);
if it meets, P R ≥P L Step S4) is carried out;
step S4): the central integrated control system judges the renewable energy power generation output power P R Whether or not is less than grid-connected absorption power P L And battery power P B The sum of the two values,
if less than or equal to, P R ≤P L +P B The wind generating set and the photovoltaic cell panel supply power to the external grid load, meanwhile, the storage battery pack is charged, and the step S2 is carried out;
if greater than, i.e. P R ＞P L +P B Turning to step S5);
step S5): the central integrated control system judges the renewable energy power generation output power P R Whether or not it is smaller than the grid-connected absorbed power P L Battery power P B And the power P of the water electrolysis hydrogen production system (8) E The sum of the three components is that,
if less than, i.e. P R ＜P L +P B +P E The central integrated control system calculates the renewable energy power generation output power P R Absorbed power P with grid connection L And battery power P B Is a difference DeltaP between (1) 1 ，△P 1 =P R -P L -P B The method comprises the steps of carrying out a first treatment on the surface of the And go to step S6);
if not less than P R ≥P L +P B +P E Step S8) is carried out;
step S6): the central integrated control system judges delta P 1 Whether or not the electrolytic water hydrogen production system can be supported at the lowest operating power P Emin Operation
If it is impossible, delta P 1 <P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
if it can, namely DeltaP 1 ≥P Emin Step S7) is carried out;
step S7): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to be smaller than rated power P En Mode (2) and then go to step (2);
if not less than, P is more than or equal to P wmax The hydrogen production system by water electrolysis is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
step S8): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production system to operate according to rated power, and simultaneously charges the storage battery pack, and the step S2 is carried out;
if not less than, P is more than or equal to P wmax The hydrogen production system by water electrolysis is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
step S9): the complementary control system enters an off-grid state, and the central integrated control system judges the renewable energy power generation output power P R Can simultaneously meet the operation of a storage battery charging and water electrolysis hydrogen production system,
if it cannot meet, namely P R ＜P B +P E Then go to step S10);
if it can meet, namely P R ≥ P B +P E Then go to step S12):
step S10): the central integrated control system judges the renewable energy power generation output power P R Whether the electrolytic water hydrogen production system can be satisfied with the minimum operating power P Emin The operation is carried out by the method,
if it cannot meet, namely P R ＜P Emin The electrolytic water hydrogen production system is not started, the storage battery pack is charged at the same time, and the step S2 is carried out;
if it meets, P R ≥P Emin And P is R ＜P B +P E Then go to step S11);
step S11): the central integrated control system calculates the renewable energy power generation output power P R Whether the water electrolysis hydrogen production system can be satisfied with rated power P En The operation is carried out by the method,
if it meets, i.e. P R ≥P En Then go to step S12);
if not, P R ＜P En Then go to step S13);
step S12): the central integrated control system judges whether the current air pressure P in the hydrogen storage system is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the electrolytic water hydrogen production system to operate according to rated power and simultaneously uses P R -P En Is charged by the storage battery, and the step S2 is carried out;
if not less than, P is more than or equal to P wmax The electrolytic water hydrogen production system (8) is not started, and meanwhile P is adopted R Is charged by the storage battery, and the step S2 is carried out;
step S13): the central integrated control system judges whether the current air pressure P in the hydrogen storage system (9) is smaller than the maximum allowable working air pressure P wmax ，
If less than, i.e. P<P wmax The central integrated control system controls the water electrolysis hydrogen production systemAt power P R Mode (2) and then go to step (2);
if not less than, P is more than or equal to P wmax The hydrogen production system by electrolysis of water is not started, and meanwhile, P is used R Is charged into the battery and goes to step S2).
2. The control method of the renewable energy power generation based multi-energy complementary control system according to claim 1, characterized by: the complementary control system (7) further comprises a monitoring system (6) and a control system (7), wherein the monitoring system (6) comprises a power collector, a storage battery capacity tester and a pressure sensor, the control system (7) comprises a storage battery charge-discharge management controller, a power generation equipment load controller, a hydrogen production power regulation controller, a grid-connected controller and a hydrogen fuel cell power generation controller, the power collector, the storage battery capacity tester, the pressure sensor, the storage battery charge-discharge management controller, the power generation equipment load controller, the hydrogen production power regulation controller, the grid-connected controller and the hydrogen fuel cell power generation controller are all electrically connected with the central integrated control system (1), and the central integrated control system (1) is a central controller.
3. The control method of the renewable energy power generation based multi-energy complementary control system according to claim 2, characterized by: the solar energy hydrogen generating system is characterized in that the wind generating set (2), the photovoltaic cell panel (3), the water electrolysis hydrogen generating system (8) and the hydrogen fuel cell power generation system (13) are connected with power collectors, the storage battery pack (4) is connected with a storage battery capacity tester, and the hydrogen storage system (9) is fixedly provided with a pressure sensor.
4. The control method of the renewable energy power generation based multi-energy complementary control system according to claim 1, characterized by: the complementary control system further comprises an external power grid load (19), a booster (18), an AC/DC rectifier (16), a DC/DC rectifier (15) and a DC/AC inverter (17), the wind generating set (2) is electrically connected with the DC bus (5) through the AC/DC rectifier (16), the photovoltaic cell panel (3), the storage battery pack (4), the electrolyzed water hydrogen production system (8) and the hydrogen fuel cell power generation system (13) are electrically connected with the DC bus (5) through the DC/DC rectifier (15), and the DC bus (5) is electrically connected with the external power grid load (19) through the DC/AC inverter (17) and the booster (18).
5. The control method of the renewable energy power generation based multi-energy complementary control system according to claim 1, characterized by: the water electrolysis hydrogen production system (8) comprises at least two hydrogen production branches, each hydrogen production branch is further provided with an electromagnetic valve, each hydrogen production branch is connected in parallel through the electromagnetic valve, each hydrogen production branch further comprises at least two electrolysis chambers, the at least two electrolysis chambers are connected in series, and the electromagnetic valve is electrically connected with the central integrated control system.
6. The control method of the renewable energy power generation based multi-energy complementary control system according to claim 1, characterized by: the hydrogen storage system (9) comprises a buffer tank (10), a compressor (11) and a gas storage tank (12), wherein the buffer tank (10) is connected with the gas storage tank (12) through a pipeline of the compressor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397069.9A CN114024327B (en) | 2021-11-23 | 2021-11-23 | Renewable energy source based power generation multifunctional complementary control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397069.9A CN114024327B (en) | 2021-11-23 | 2021-11-23 | Renewable energy source based power generation multifunctional complementary control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114024327A CN114024327A (en) | 2022-02-08 |
| CN114024327B true CN114024327B (en) | 2024-02-06 |
Family
ID=80066063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111397069.9A Active CN114024327B (en) | 2021-11-23 | 2021-11-23 | Renewable energy source based power generation multifunctional complementary control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024327B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614499A (en) * | 2022-03-30 | 2022-06-10 | 中国华能集团清洁能源技术研究院有限公司 | Renewable energy hydrogen production comprehensive power supply system |
| WO2023227728A1 (en) * | 2022-05-27 | 2023-11-30 | Wilo Se | Power supply system, method for constructing a power supply system and use of the power supply system |
| GB2619700A (en) * | 2022-06-06 | 2023-12-20 | Catagen Ltd | Renewable energy capture, conversion and storage system |
| CN114844125A (en) * | 2022-07-05 | 2022-08-02 | 中国长江三峡集团有限公司 | Electric energy scheduling method, device, equipment and medium for hydrogen production from renewable energy sources |
| EP4346046A1 (en) * | 2022-09-28 | 2024-04-03 | Siemens Gamesa Renewable Energy A/S | Wind turbine and method for operating a wind turbine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107246A1 (en) * | 2015-12-25 | 2017-06-29 | 北京四方继保自动化股份有限公司 | Generated power control system and control method for intelligent micro-grid with medium energy storage |
| CN109755965A (en) * | 2019-03-20 | 2019-05-14 | 河北科技大学 | Wind light generation and hydrogen-preparing hydrogen-storing system and its progress control method |
| CN110601231A (en) * | 2019-09-19 | 2019-12-20 | 无锡马丁格林光伏科技有限公司 | Photovoltaic and fuel cell integrated power generation system based on photovoltaic hydrogen production and energy storage |
| CN212726480U (en) * | 2020-08-07 | 2021-03-16 | 中国华能集团清洁能源技术研究院有限公司 | Grid-connected and off-grid wind-solar-water hydrogen storage fuel cell direct-current interconnected micro-grid system |
| CN112803573A (en) * | 2021-01-18 | 2021-05-14 | 天宏阳光新能源股份有限公司 | Wind-solar-hydrogen storage complementary uninterrupted power supply system |
| EP3823125A1 (en) * | 2019-11-15 | 2021-05-19 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Controlling a hybrid power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9438041B2 (en) * | 2012-12-19 | 2016-09-06 | Bosch Energy Storage Solutions Llc | System and method for energy distribution |
-
2021
- 2021-11-23 CN CN202111397069.9A patent/CN114024327B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107246A1 (en) * | 2015-12-25 | 2017-06-29 | 北京四方继保自动化股份有限公司 | Generated power control system and control method for intelligent micro-grid with medium energy storage |
| CN109755965A (en) * | 2019-03-20 | 2019-05-14 | 河北科技大学 | Wind light generation and hydrogen-preparing hydrogen-storing system and its progress control method |
| CN110601231A (en) * | 2019-09-19 | 2019-12-20 | 无锡马丁格林光伏科技有限公司 | Photovoltaic and fuel cell integrated power generation system based on photovoltaic hydrogen production and energy storage |
| EP3823125A1 (en) * | 2019-11-15 | 2021-05-19 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Controlling a hybrid power plant |
| CN212726480U (en) * | 2020-08-07 | 2021-03-16 | 中国华能集团清洁能源技术研究院有限公司 | Grid-connected and off-grid wind-solar-water hydrogen storage fuel cell direct-current interconnected micro-grid system |
| CN112803573A (en) * | 2021-01-18 | 2021-05-14 | 天宏阳光新能源股份有限公司 | Wind-solar-hydrogen storage complementary uninterrupted power supply system |
Non-Patent Citations (2)
| Title |
|---|
| 多能互补新能源电站协调控制策略研究;胡津源;王书征;;电工电气(第09期);全文 * |
| 胡津源 ; 王书征 ; .多能互补新能源电站协调控制策略研究.电工电气.2020,(第09期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114024327A (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114024327B (en) | Renewable energy source based power generation multifunctional complementary control system and method | |
| CN212726480U (en) | Grid-connected and off-grid wind-solar-water hydrogen storage fuel cell direct-current interconnected micro-grid system | |
| CN112803472A (en) | Direct-current coupling hydrogen production system and control method thereof | |
| CN112803573A (en) | Wind-solar-hydrogen storage complementary uninterrupted power supply system | |
| CN110571857A (en) | Energy management coordination system based on photovoltaic and fuel cell combined power generation system | |
| CN114552659A (en) | Multi-energy comprehensive management type energy router containing electricity, hydrogen and energy storage and control method | |
| CN110266040A (en) | A kind of wind, light, Proton Exchange Membrane Fuel Cells are provided multiple forms of energy to complement each other hybrid power system and method | |
| CN114908365B (en) | Off-grid photovoltaic hydrogen production system control method | |
| CN115102153A (en) | Electro-optical hydrogen storage micro-grid for transformer substation and control method thereof | |
| CN115296321A (en) | Off-grid photovoltaic hydrogen production coupling control system | |
| Li et al. | Modeling and simulation of hydrogen energy storage system for power-to-gas and gas-to-power systems | |
| CN205489554U (en) | Millet power supply system is filled out in peak clipping based on methanol -water reformation hydrogen manufacturing power generation system | |
| CN113452044B (en) | Wind power photovoltaic power grid dispatching method of hydrogen-containing and liquid metal battery hybrid energy storage system | |
| CN113949054A (en) | Power grid autonomous system and method | |
| CN115441517B (en) | Novel data center power supply and distribution system and control method thereof | |
| CN115149552A (en) | Control method of alternating-current coupling off-grid wind power hydrogen production system | |
| CN115637455A (en) | Proton exchange membrane PEM (proton exchange membrane) water electrolysis hydrogen production system based on solar power generation and energy supply | |
| CN209313514U (en) | Light hydrogen energy-storage power supplying apparatus | |
| CN219394440U (en) | Wind-solar complementary power supply device for on-site hydrogen production | |
| CN221263437U (en) | Household light hydrogen energy storage power supply system | |
| CN114990601B (en) | Electric energy storage method and device | |
| CN214380125U (en) | Thermal power plant peak regulation system based on hydrogen fuel cell | |
| CN218301001U (en) | Renewable energy hydrogen production comprehensive power supply system | |
| CN219576711U (en) | Hybrid energy storage system for preparing hydrogen by wind and light | |
| CN217307346U (en) | Household photovoltaic combined heat and power system |
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 |