CN106119883A - A kind of coupled hydrogen making system and control method thereof - Google Patents
A kind of coupled hydrogen making system and control method thereof Download PDFInfo
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- CN106119883A CN106119883A CN201610459166.9A CN201610459166A CN106119883A CN 106119883 A CN106119883 A CN 106119883A CN 201610459166 A CN201610459166 A CN 201610459166A CN 106119883 A CN106119883 A CN 106119883A
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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
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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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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- 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
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present invention proposes a kind of coupled hydrogen making system and control method thereof, belongs to technical field of new energies.This system includes control unit, and generator unit, energy management unit, Hydrogen Unit and the gas storing and supplementing unit being all connected with control unit and being sequentially connected with each other, to be detected generator unit and all working parameter of Hydrogen Unit by control unit and to be analyzed, control energy management unit and the action of gas storing and supplementing unit.The hydrogen that Hydrogen Unit produces enters in gas storing and supplementing unit and stores, and control unit controls gas storing and supplementing unit and mends hydrogen to Hydrogen Unit is counter in the case of necessary.This control method includes three kinds of operational modes: only powered by wind power generation plant and photovoltaic power generation apparatus；Civil power is independently-powered；And civil power, wind power generation plant and photovoltaic power generation apparatus power simultaneously.The present invention can solve the problem that a commercialization hydrogen producer hydrogen purity difficult problem under the intermittent Power Supplies Condition of wide power swing, low cost, high safety, and stability is high.
Description
Technical field
The invention belongs to technical field of new energies, relate to a kind of hydrogen producing technology, especially a kind of coupled hydrogen making technology.
Background technology
Hydrogen, as a kind of energy carrier, easily burns, possesses the features such as efficient, pollution-free, can replace to a certain extent
For traditional fossil energy, newly can field for hydrogen cell automobile, standby base station power, cogeneration system etc..Meanwhile, hydrogen
As a kind of industrial chemicals, may be used for again the traditional industry fields such as oil refining, chemical industry, synthesis ammonia, there is the most wide purposes.
Currently, main hydrogen source mostlys come from fossil energy, including water gas hydrogen manufacturing, hydrogen making by natural gas reformation,
Preparing hydrogen by reforming methanol etc..Additionally, water electrolysis hydrogen producing technology is the most ripe, but owing to its electricity price cost becomes relative to fossil energy hydrogen manufacturing
This height and fail to apply on a large scale；If using the generating of clean energy resource such as wind, light to carry out being electrolysed water prepare hydrogen, the most permissible
Realizing being prepared into use overall process zero carbon emission from hydrogen, this energy conversion and Land use systems can reduce atmospheric pollution, improve
Air quality, also solves simultaneously and abandons the problem that wind abandons light.But, owing to wind energy and solar electrical energy generation have typical fluctuation
Property, randomness and intermittence, cause electric energy output instability, thus the hydrogen purity of electrolytic hydrogen production equipment do not reached requirement,
And the safety of hydrogen producer is caused harm greatly with stablizing use.
The Chinese patent of Application No. 201010538149.7 describes a kind of wind power hydrogen production regulation and control grid-connected system, mainly
The control of electrical network is fed back to for the utilization of grid connected wind power and hydrogen manufacturing post fuel cell power generation.Application No. 201210057067.X
Chinese patent describe a kind of non-grid connected wind power device for producing hydrogen, main use configuration large-capacity battery, as power-balance
System, solves energy fluctuation and intermittent problem.Although above-mentioned prior art uses grid-connected or configuration large-capacity battery
Method, solve power supply an intermittent difficult problem；But, grid-connected needs just satisfy the requirements at large-scale wind field, and configuration accumulator is subject to
Store the restriction of electricity, the power stability of a bit of time can only be maintained, if to configure the storage mated completely with hydrogen manufacturing power
Battery, cost is much more expensive.
Therefore, highly versatile, low cost, it is possible in the case of not using accumulator, solve commercialization water electrolysis hydrogen production
An equipment hydrogen purity difficult problem under the intermittent Power Supplies Condition of wide power swing, and the hydrogen generating system that safety and stability is high
There is extremely strong Research Significance and using value.
Summary of the invention
It is an object of the invention to provide a kind of hydrogen producing technology, in the situation not using accumulator in the way of low cost
Under, solve the difficult problem that commercialization hydrogen producer hydrogen purity under the intermittent Power Supplies Condition of wide power swing is low, and this mistake
Journey safety and stability is high.
In order to achieve the above object, the solution of the present invention is:
A kind of coupled hydrogen making system, including control unit, and is all connected with described control unit and the most successively
Generator unit, energy management unit, Hydrogen Unit and the gas storing and supplementing unit connected, to be sent out by the detection of described control unit is described
The all working parameter of electric unit and described Hydrogen Unit is also analyzed, and controls described energy management unit and described gas storage is mended
The action of gas unit；Described generator unit includes the different types of TRT of at least two energy source；Energy management unit
Including the switch switching part being all connected with described control unit and rectifying part, connected described by described switch switching part
Generator unit and described rectifying part, adjusted to be converted by the connection of described switch switching part under the control of the control unit
The work matching relationship of described rectifying part, obtains the electric energy needed for hydrogen manufacturing；The hydrogen that described Hydrogen Unit produces enters described
Storing in gas storing and supplementing unit, described control unit controls described gas storing and supplementing unit in the case of necessary to described hydrogen manufacturing list
Unit is counter mends hydrogen.
Described Hydrogen Unit is water electrolysis hydrogen production unit, including device for preparing hydrogen and hydrogen purification apparatus；Described system
Hydrogen production device includes electrolysis bath；The situation of described necessity refers to the feelings less than setting value of the hydrogen content in described purification devices
Condition.
Described generator unit includes wind power generation plant, and/or photovoltaic power generation apparatus, and/or civil power, and/or tide is sent out
Electric installation.
Described rectifying part includes AC/DC rectification module and/or DC/DC rectification module and/or voltage connection in series-parallel module,
And/or rectifying conversion power module.
Described generator unit includes civil power, the first wind power generation plant, the second wind power generation plant and photovoltaic generation dress
Put；Described civil power connects the first rectifying conversion power module by an AC/DC rectification module, with by an AC/DC rectification mould
Civil power is converted to unidirectional current by block, is carried out rectification and transformation by the first rectifying conversion power module afterwards, to mate described electrolysis
The electricity consumption requirement of groove；First wind power generation plant connects voltage connection in series-parallel module, the second wind-force by the 2nd AC/DC rectification module
TRT connects described voltage connection in series-parallel module by the 3rd AC/DC rectification module, and described voltage connection in series-parallel module connects the
Two rectifying conversion power modules, with by the 2nd AC/DC rectification module and the 3rd AC/DC rectification module respectively by the first wind-power electricity generation
The output voltage of device and the second wind power generation plant is converted to DC voltage and filters clutter, then by described voltage connection in series-parallel mould
After block carries out connection in series-parallel combination, the second rectifying conversion power module proceed rectification and transformation, to mate described electrolysis bath
Electricity consumption requirement；Described photovoltaic power generation apparatus connects the 3rd rectifying conversion module by DC/DC rectification module, with whole by DC/DC
Flow module carries out DC converting to the output voltage of described photovoltaic power generation apparatus, is carried out by the 3rd rectifying conversion power module afterwards
Rectification and transformation, to mate the electricity consumption requirement of described electrolysis bath.
Preferably, between civil power and an AC/DC rectification module, the first switch is set, the first wind power generation plant and second
Between AC/DC rectification module, second switch is set, between the second wind power generation plant and the 3rd AC/DC rectification module, arranges the 3rd
Switch, arranges the 4th switch between photovoltaic power generation apparatus and DC/DC rectification module.
Preferably, the first rectifying conversion power module and the second rectifying conversion power module are between the inputs by the 5th
Switch is connected in series, and the second rectifying conversion power module and the 3rd rectifying conversion power module are opened by the 6th between the inputs
Pass is connected in series.
Preferably, the first rectifying conversion power module, the second rectifying conversion power module and the 3rd rectifying conversion power supply mould
Block is connected in parallel at outfan.
Preferably, the circuit of the first wind power generation plant to the 2nd AC/DC rectification module is the first wind-power electricity generation circuit, the
The circuit of two wind power generation plants to the 3rd AC/DC module is the second generating circuit；Described voltage connection in series-parallel module includes from
The positive pole of one wind-power electricity generation circuit is connected to the circuit of the positive pole of the second wind-power electricity generation circuit by the 7th switch, from the first wind-force
The negative pole of generating circuit is connected to the circuit of the negative pole of the second wind-power electricity generation circuit by the 8th switch, and sends out from the first wind-force
Circuit node between electric line and the 7th switch by the 9th switch be connected to the second wind-power electricity generation circuit and second switch it
Between the circuit of circuit node.
One outfan of described voltage connection in series-parallel module is the electricity of circuit between the 7th switch and the second wind-power electricity generation circuit
Road node, another outfan is the circuit node of circuit between the 8th switch and the first wind-power electricity generation circuit.
Preferably, the 7th switch, the 8th switch, the 9th switch are insulated gate bipolar transistor.
Preferably, the 7th switch, the 8th switch, the 9th switch are all connected with described control unit, to control list described
On or off under the control of unit, to control the serial or parallel connection of the first wind-power electricity generation circuit and the second wind-power electricity generation circuit even
Connect.
Or, described generator unit includes that civil power, the first wind power generation plant, the second wind power generation plant and photovoltaic are sent out
Electric installation；Described civil power connects the first rectifying conversion power module by an AC/DC rectification module, with whole by an AC/DC
Civil power is converted to unidirectional current by flow module, is proceeded rectification and transformation by the first rectifying conversion power module afterwards, with coupling
The electricity consumption requirement of described electrolysis bath；First wind power generation plant connects the second rectifying conversion electricity by the 2nd AC/DC rectification module
Source module, to be converted to unidirectional current by the 2nd AC/DC rectification module by the output voltage of the first wind power generation plant, afterwards by
Two rectifying conversion power modules proceed rectification and transformation, to mate the electricity consumption requirement of described electrolysis bath；Second wind-power electricity generation
Device by the 3rd AC/DC rectification module connect the 3rd rectifying conversion power module, with by the 3rd AC/DC rectification module by second
The output voltage of wind power generation plant is converted to unidirectional current, is proceeded rectification and change by the second rectifying conversion power module afterwards
Pressure, to mate the electricity consumption requirement of described electrolysis bath；Described photovoltaic power generation apparatus connects the 4th rectification by DC/DC rectification module and becomes
Change power module, the output voltage of described photovoltaic power generation apparatus is carried out DC converting by DC/DC rectification module, afterwards by
Four rectifying conversion power modules carry out rectification and transformation, to mate the electricity consumption requirement of described electrolysis bath.
Preferably, between civil power and an AC/DC rectification module, switch is set, the first wind power generation plant and the 2nd AC/
Arranging switch between DC rectification module, arrange switch between the second wind power generation plant and the 3rd AC/DC rectification module, photovoltaic is sent out
Between electric installation and DC/DC rectification module, switch is set.
Preferably, between the first rectifying conversion power module and the second rectifying conversion power module, the second rectifying conversion electricity
Between source module and the 3rd rectifying conversion power module, the 3rd rectifying conversion power module and the 4th rectifying conversion power module it
Between be respectively provided with switch.
Preferably, the first rectifying conversion power module, the second rectifying conversion power module, the 3rd rectifying conversion power module
It is connected in parallel at outfan with the 4th rectifying conversion power module.
When the hydrogen storage pressure of described gas storing and supplementing unit is less than setting value, at described Hydrogen Unit and described gas storing and supplementing
Hydrogen pressurizer is arranged between unit, so that after the hydrogen of described Hydrogen Unit generation is by described hydrogen pressurizer supercharging
Enter back into described gas storing and supplementing unit.
Preferably, described hydrogen pressurizer is hydrogen diaphragm type compressor, or hydrogen pressurization device.
Described gas storing and supplementing unit includes hydrogen storage bottle, and is sequentially arranged on the direction pointing to Hydrogen Unit from hydrogen storage bottle
: the first pressure transducer, to detect the Hydrogen Vapor Pressure in described hydrogen storage bottle, stable state pressure regulator valve, to adjust the anti-pressure mending hydrogen
Power, safety relief valve, to automatically turn on hydrogen of releasing when described stable state pressure regulator valve fault, gas mass flow controller,
To control the anti-flow mending hydrogen, hydrogen automatic valve switchs, with the instruction according to described control unit, opens or closes from institute
State gas storing and supplementing unit to the hydrogen QI invigorating between described Hydrogen Unit, and the second pressure transducer, to detect described anti-benefit
The Hydrogen Vapor Pressure of hydrogen.
Preferably, the hydrogen paths connecting described Hydrogen Unit and described gas storing and supplementing unit at least includes two, one
Flowing to be to the gas storage passage of described gas storing and supplementing unit from described Hydrogen Unit for hydrogen, another flows to as from institute for hydrogen
State the gas storing and supplementing unit air supply passage to described Hydrogen Unit.
It is further preferred that the first pressure transducer, described stable state pressure regulator valve, described safety relief valve, described gas matter
Amount flow control valve, described hydrogen automatic valve switch and the second pressure transducer are respectively positioned on described air supply passage.
When generator unit includes civil power, wind power generation plant and photovoltaic power generation apparatus, described hydrogen generating system includes three kinds of fortune
Row mode:
The first operational mode, for cutting off civil power, is powered by wind power generation plant and photovoltaic power generation apparatus；
The second operational mode is that civil power is independently-powered, cuts off wind power generation plant and photovoltaic power generation apparatus；
The third operational mode is that civil power, wind power generation plant and photovoltaic power generation apparatus are powered simultaneously.
In the third operational mode, the priority of wind power generation plant and photovoltaic power generation apparatus generating is higher than civil power.
Preferably, by detecting and be calculated the demand power of Hydrogen Unit, and send out with wind power generation plant and photovoltaic
The generated output of electric installation compares；When the generated output of wind power generation plant and photovoltaic power generation apparatus is more than or equal to described
During demand power, only generated electricity for Hydrogen Unit by wind power generation plant and photovoltaic power generation apparatus；Otherwise, wind power generation plant
Being completely used for Hydrogen Unit with the generated output of photovoltaic power generation apparatus, insufficient section is supplemented by civil power again.
It is further preferred that Hydrogen Unit includes that electrolysis hydrogen production device, electrolysis hydrogen production device include electrolysis bath, by gathering
The operating temperature of electrolysis bath and running voltage calculate the demand power of Hydrogen Unit, use below equation to calculate:
P=U2/R(T)
Wherein: P is the demand power of electrolysis bath, U is the running voltage of electrolysis bath, and R is the resistance of electrolysis bath, and T is electrolysis
The operating temperature of groove, R (T) represents the R function about T.
Owing to using such scheme, the invention has the beneficial effects as follows: highly versatile of the present invention, low cost, it is possible to do not make
In the case of accumulator, solve commercialization hydrogen producer, the especially water-electrolytic hydrogen making equipment intermittence at wide power swing
A hydrogen purity difficult problem under Power Supplies Condition；Meanwhile, high safety of the present invention, stability is high.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of coupled hydrogen making system in one embodiment of the invention；
Fig. 2 is the structural representation of this coupled hydrogen making system；
Fig. 3 is voltage connection in series-parallel module and the structural representation of two wind-power electricity generation circuits in this embodiment.
In accompanying drawing: 1, an AC/DC rectification module；2, the 2nd AC/DC rectification module；3, the 3rd AC/DC rectification module；4、
DC/DC rectification module；5, voltage connection in series-parallel module；6, hydrogen automatic valve switch；7, the first wind-power electricity generation circuit；8, the second wind
Power generating circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
The present invention proposes a kind of coupled hydrogen making system, and coupling here refers to the coupling of the two or more energy；Fig. 1
Showing its system architecture diagram, Fig. 2 is the structural representation that in the present embodiment, this coupled hydrogen making system is the most careful.This coupling
Hydrogen generating system includes the generator unit being sequentially connected with, energy management unit, Hydrogen Unit and gas storing and supplementing unit and with aforementioned
The control unit that these unit are all connected with, goes forward side by side with all working parameter by control unit detection generator unit and Hydrogen Unit
Row is analyzed, and controls energy management unit and the action of gas storing and supplementing unit accordingly.
Generator unit includes the different types of TRT of at least two energy source, and such as it can include wind-power electricity generation
Device, and/or photovoltaic power generation apparatus, and/or civil power, and/or tidal power generating device etc..In the present embodiment, as in figure 2 it is shown,
This generator unit includes civil power, the first wind power generation plant, the second wind power generation plant and photovoltaic power generation apparatus.
Energy management unit includes switch switching part and the rectifying part being all connected with control unit, is switched by switch
Part connects generator unit and rectifying part, to be adjusted by the connection conversion of switch switching part under the control of the control unit
The work matching relationship of rectifying part, obtains the electric energy needed for hydrogen manufacturing.This rectifying part according to the mating of generator unit, it is possible to
Including AC/DC rectification module and/or DC/DC rectification module and/or voltage connection in series-parallel module, and/or rectifying conversion power supply mould
Block.
As in figure 2 it is shown, in the present embodiment, this rectifying part includes AC/DC rectification module the 1, a 2nd AC/DC rectification mould
Block 2, the 3rd AC/DC rectification module 3, DC/DC rectification module 4, voltage connection in series-parallel module the 5, first rectifying conversion power module,
Two rectifying conversion power modules and the 3rd rectifying conversion power module；Switch switching part includes the first switch KM1, second switch
KM2, the 3rd switch KM3, the 4th switch KM4, the 5th switch KM5 and the 6th switch KM6.
Wherein, civil power connects the first rectifying conversion power module, with by an AC/DC by an AC/DC rectification module 1
Civil power is converted to unidirectional current by rectification module 1, is carried out rectification and transformation by the first rectifying conversion power module afterwards, to mate system
The electricity consumption requirement of electrolysis bath (Hydrogen Unit includes electrolysis bath as described later) in hydrogen unit.First wind power generation plant is by the
Two AC/DC rectification modules 2 connect voltage connection in series-parallel module 5, and the second wind power generation plant is by the 3rd AC/DC rectification module 3 even
Connecing voltage connection in series-parallel module 5, voltage connection in series-parallel module 5 connects the second rectifying conversion power module, with by the 2nd AC/DC rectification mould
The output voltage of the first wind power generation plant and the second wind power generation plant is changed by block 2 and the 3rd AC/DC rectification module 3 respectively
For DC voltage with filter clutter, then after being carried out connection in series-parallel combination by voltage connection in series-parallel module 5, by the second rectifying conversion power supply mould
Block proceeds rectification and transformation, to mate the electricity consumption requirement of electrolysis bath in described Hydrogen Unit.Photovoltaic power generation apparatus passes through DC/
DC rectification module 4 connects the 3rd rectifying conversion power module, with electric to the output of photovoltaic power generation apparatus by DC/DC rectification module 4
Pressure carries out DC converting, is carried out rectification and transformation by the 3rd rectifying conversion power module afterwards, is electrolysed to mate in Hydrogen Unit
The electricity consumption requirement of groove.
First switch KM1 is arranged between civil power and an AC/DC rectification module 1, and second switch KM2 is arranged on the first wind
Between power generation device and the 2nd AC/DC rectification module 2, the 3rd switch KM3 is arranged on the second wind power generation plant and the 3rd AC/
Between DC rectification module 3, the 4th switch KM4 is arranged between photovoltaic power generation apparatus and DC/DC rectification module 4；5th switch KM5
It is connected in series between the input of the first rectifying conversion power module and the input of the second rectifying conversion power module, the 6th
Switch KM6 be connected in series in the input of the second rectifying conversion power module and the 3rd rectifying conversion power module input it
Between.First rectifying conversion power module, the second rectifying conversion power module and the 3rd rectifying conversion power module are at outfan also
Connection connects.
Above-mentioned voltage connection in series-parallel module 5 is to arrange for multiple stage wind power generation plant, when separate unit wind power generation plant produces
When raw voltage reaches effective output valve, each typhoon power generation device is carried out Parallel opertation voltage by voltage connection in series-parallel module 5；When
When the voltage that separate unit wind power generation plant produces is less than effective output valve, voltage connection in series-parallel module 5 is by multiple stage wind power generation plant
Connect, booster tension, until it reaches effectively output valve.
In the present embodiment, the circuit making the first wind power generation plant to the 2nd AC/DC rectification module is the first wind-power electricity generation
Circuit 7, the circuit of the second wind power generation plant to the 3rd AC/DC module is the second generating circuit 8.Voltage connection in series-parallel module includes
It is connected to the circuit of the positive pole of the second wind-power electricity generation circuit 8 by the 7th switch S1 from the positive pole of the first wind-power electricity generation circuit 7, from
The negative pole of the first wind-power electricity generation circuit 7 is connected to the circuit of the negative pole of the second wind-power electricity generation circuit 8 by the 8th switch S2, and
Circuit node between the first wind-power electricity generation circuit 7 and the 7th switch S2 is connected to the second wind-power electricity generation by the 9th switch S3
The circuit of the circuit node between circuit 8 and the 8th switch S2.One outfan of this voltage connection in series-parallel module 5 is the 7th switch S1
And the circuit node of circuit between the second wind-power electricity generation circuit 8, another outfan is the 8th switch S2 and the first wind-power electricity generation line
The circuit node of circuit between road 7；This voltage connection in series-parallel module 5 is connected in series in the second rectifying conversion power supply by two outfans
In module.Fig. 3 show the structural representation after this voltage connection in series-parallel module and two wind-power electricity generation connections.
In voltage connection in series-parallel module 5 shown in figure 3, the 7th switch S1, the 8th switch S2, the 9th switch S3 are i.e.
Insulated gate bipolar transistor (IGBT), its conducting is controlled by control unit with turning off.Open when control unit controls the 7th
Close S1 and the 8th switch S2 conducting, when the 9th switch S3 turns off, the first wind-power electricity generation circuit and the second wind-power electricity generation lines in parallel；
When control unit control the 9th switch S3 conducting, the 7th switch S1 and the 8th switch S2 turn off time, the first wind-power electricity generation circuit and
Second wind-power electricity generation circuit series connection.
In the present invention, it is possible to the voltage connection in series-parallel module being not provided with in above-described embodiment, and each wind power generation plant is arrived
Line arrangement between Hydrogen Unit is similar to civil power in above-described embodiment and arranges to the line arrangement between Hydrogen Unit.
Specifically, generator unit is same as the previously described embodiments, and now being specifically arranged as of energy management unit:
Civil power connects the first rectifying conversion power module by an AC/DC rectification module, with by an AC/DC rectification mould
Civil power is converted to unidirectional current by block, is proceeded rectification and transformation by the first rectifying conversion power module afterwards, to mate hydrogen manufacturing
The electricity consumption requirement of electrolysis bath in unit；First wind power generation plant connects the second rectifying conversion by the 2nd AC/DC rectification module
Power module, the output voltage of the first wind power generation plant is converted to unidirectional current by the 2nd AC/DC rectification module, afterwards by
Second rectifying conversion power module proceeds rectification and transformation, to mate the electricity consumption requirement of electrolysis bath in Hydrogen Unit；Second
Wind power generation plant connects the 3rd rectifying conversion power module by the 3rd AC/DC rectification module, with by the 3rd AC/DC rectification mould
The output voltage of the second wind power generation plant is converted to unidirectional current by block, is proceeded by the second rectifying conversion power module afterwards
Rectification and transformation, to mate the electricity consumption requirement of electrolysis bath in Hydrogen Unit；Photovoltaic power generation apparatus is connected by DC/DC rectification module
4th rectifying conversion power module, the output voltage of photovoltaic power generation apparatus is carried out DC converting by DC/DC rectification module, it
After carried out rectification and transformation by the 4th rectifying conversion power module, to mate the electricity consumption requirement of electrolysis bath in Hydrogen Unit.Wherein,
Be arranged in series switch between civil power and an AC/DC rectification module, the first wind power generation plant and the 2nd AC/DC rectification module it
Between be arranged in series switch, be arranged in series switch between the second wind power generation plant and the 3rd AC/DC rectification module, photovoltaic generation fills
Put and be arranged in series switch between DC/DC rectification module；First rectifying conversion power module and the second rectifying conversion power module
Between, between the second rectifying conversion power module and the 3rd rectifying conversion power module, the 3rd rectifying conversion power module and
Switch, and the first rectifying conversion power module, the second rectifying conversion power supply mould it is respectively provided with between four rectifying conversion power modules
Block, the 3rd rectifying conversion power module and the 4th rectifying conversion power module are connected in parallel at outfan.
Hydrogen Unit is electrolytic hydrogen production unit, and in the present embodiment, it is water electrolysis hydrogen production unit, fills including water electrolysis hydrogen production
Putting and hydrogen purification apparatus, device for preparing hydrogen includes electrolysis bath.Wherein, device for preparing hydrogen includes but not limited to routine
Electrolyzed alkaline water device or solid polymer electrolyte device for producing hydrogen.When the hydrogen storage pressure of gas storing and supplementing unit is less than setting value,
Hydrogen pressurizer is arranged, so that the hydrogen that Hydrogen Unit produces is via this hydrogen between Hydrogen Unit and gas storing and supplementing unit
Gas storing and supplementing unit is entered back into after gas pressure charging device supercharging.Above-mentioned hydrogen pressurizer can be hydrogen diaphragm type compressor or hydrogen
Gas supercharger.
On the one hand the effect of gas storing and supplementing unit is to store the hydrogen that Hydrogen Unit produces, and further aspect is that in necessity
In the case of mend hydrogen to the purification devices of Hydrogen Unit is counter, the hydrogen content that the situation of this necessity refers in purification devices is low
In the situation of setting value, i.e. purification devices can not be met when the amounts of hydrogen that Hydrogen Unit produces in the case of low power run
The situation of regeneration requirements.Hydrogen Unit is connected by Hydrogen Line with gas storing and supplementing unit, and gas storing and supplementing unit includes hydrogen storage bottle
Group, and from hydrogen storage bottle group point to Hydrogen Unit direction on set gradually the first pressure transducer, pressure-stabilizing pressure regulation valve, peace
Full relief valve, gas mass flow controller, hydrogen automatic valve switch 6 and the second pressure transducer.Wherein, hydrogen storage bottle group bag
Including at least one hydrogen storage bottle, pressure store is 3～20MPa, and the outlet of each hydrogen storage bottle is provided with ball valve, to allow manual-lock
Hydrogen；The Hydrogen Vapor Pressure acting as in detection hydrogen storage bottle group of the first pressure transducer；The effect of pressure-stabilizing pressure regulation valve is regulation
The anti-Hydrogen Vapor Pressure mended so that be adjusted to and purification devices Hydrogen Unit from the pressure of the hydrogen storage bottle group anti-hydrogen mended out
Required Hydrogen Vapor Pressure, i.e. 1.0～3MPa；The effect of safety relief valve is when pressure-stabilizing pressure regulation valve breaks down, this peace
Full relief valve automatically turns on, and is released to hydrogen empty in pipeline, it is to avoid upstream device suffers damage；Gas mass flow controls
The effect of device is the flow controlling the anti-regeneration hydrogen mended, to meet the Hydrogen Unit traffic requirement to regeneration hydrogen；Hydrogen is certainly
Movable valve switch 6 connection control unit, opens with the control instruction according to control unit so that the regeneration hydrogen in gas bomb group
Instead mend in the purification devices of Hydrogen Unit, or close according to the control instruction of control unit, to stop anti-benefit regeneration hydrogen；
The effect of the second pressure transducer is to detect the pressure of the regeneration hydrogen of anti-benefit.First pressure transducer, the second pressure sensing
Device, gas mass flow controller and hydrogen automatic valve switch 6 are all connected with control system, to control system feedback signal.On
State hydrogen automatic valve switch 6 for pneumatic operated valve or electromagnetic valve；Hydrogen storage bottle is steel hydrogen storage bottle or carbon fiber winding hydrogen storage bottle.
The hydrogen paths connecting Hydrogen Unit and gas storing and supplementing unit at least includes two, and one flows to as from system for hydrogen
Hydrogen unit is to the gas storage passage of gas storing and supplementing unit, and another flows to as the benefit from gas storing and supplementing unit to Hydrogen Unit for hydrogen
Gas passage.Above-mentioned first pressure transducer, stable state pressure regulator valve, safety relief valve, gas mass flow control valve, hydrogen automatic valve
Door trip and the second pressure transducer are respectively positioned on air supply passage.
Control system uses PLC control module, by gathering generator unit, energy management unit, Hydrogen Unit and gas storage
All signals of QI invigorating unit Treatment Analysis, realize coupling wind-force and photovoltaic the control of electrolytic hydrogen production.
In the present embodiment, the first wind power generation plant and the second wind power generation plant are the wind that generated output is 100KW
Power generator；The generated output of photovoltaic power generation apparatus is 100KW；The production capacity of water electrolysis hydrogen production unit is 50Nm3/ h, rated power
For 250KW；The hydrogen storage volume of gas storing and supplementing system is 600Nm3。
According to the characteristic of water electrolysis hydrogen production unit, the rectification change power module of EMS uses IGBT high frequency to open
Closing power supply, important technological parameters is: operating frequency: 50kHz, input voltage: 380V/AC, output voltage: 150V/DC.IGBT is high
Frequently Switching Power Supply uses PWM to regulate output voltage module, and the power of each IGBT high frequency switch power is 100kW, total power
Reach 300kW.By control system, control the 5th switch and the closed and disconnected of the 6th switch, it is possible to achieve 100kW,
The power output of 200kW, 300kW.Control system is the PLC control system of Siemens 300.
The invention allows for the control method of a kind of above-mentioned coupled hydrogen making system, thus to above-mentioned coupled hydrogen making system
Work three kinds of operational modes of regulation.The first operational mode, for cutting off civil power, is supplied by wind power generation plant and photovoltaic power generation apparatus
Electricity；In fig. 2, by disconnecting the first switch, Guan Bi second switch, the 3rd switch and the 4th switch realize the first and run mould
Formula.The second operational mode is that civil power is independently-powered, cuts off wind power generation plant and photovoltaic power generation apparatus；In fig. 2, by closing
Close the first switch, disconnect second switch, the 3rd switch and the 4th switch and realize the second operational mode.The third operational mode is
Civil power, wind power generation plant and photovoltaic power generation apparatus are powered simultaneously；In fig. 2, by Guan Bi the first switch, second switch, the
Three switches and the 4th switch realize the third operational mode.
In the third operational mode, the priority of wind-power electricity generation and photovoltaic generation is higher than mains-supplied.For electrolysis water
For Hydrogen Unit, the part throttle characteristics of electrolysis bath meets following formula:
P=U2/R(T)
Wherein, P is the power needed for electrolytic hydrogen production unit, and U is the running voltage of electrolysis bath, and R is the resistance of electrolysis bath, T
For the operating temperature of electrolysis bath, R (T) represents the R function about T.
Therefore, by running voltage and the operating temperature of detection electrolysis bath, the power needed for electrolytic hydrogen production unit is obtained, i.e.
Its demand power.When the generated output of wind power generation plant and photovoltaic power generation apparatus is more than or equal to the demand of electrolytic hydrogen production unit
During power, only generated electricity by wind power generation plant and photovoltaic power generation apparatus；Otherwise, the sending out of wind power generation plant and photovoltaic power generation apparatus
Electrical power is completely used for electrolytic hydrogen production unit, and insufficient section is supplemented by civil power again.This process is by regulating an AC/DC of civil power
Rectification module, the 2nd AC/DC rectification module of two wind power generation plants and the 3rd AC/DC rectification module and photovoltaic generation dress
The output voltage of the DC/DC rectification module put so that its gross output meets the demand power of Hydrogen Unit, and pays the utmost attention to
Wind-power electricity generation and photovoltaic generation realize.
Additionally, between the rectifying conversion power module of energy management unit, it is possible to by rectifying conversion power module it
Between electric switch, be combined into the rectifier power source of different capacity size.Such as, in the energy management unit shown in Fig. 2, when closing
When closing the 5th switch, disconnection the 6th switch, the first rectifying conversion power module and the second rectifying conversion power module are applied in combination；
When the 5th switch and the 6th switch all close, then the first rectifying conversion power module, the second rectifying conversion power module and the
Three rectifying conversion power modules are applied in combination.
Highly versatile of the present invention, low cost, it is possible in the case of not using accumulator, solve commercialization hydrogen producer,
An especially water-electrolytic hydrogen making equipment hydrogen purity difficult problem under the intermittent Power Supplies Condition of wide power swing；Meanwhile, the present invention
High safety, stability is high.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply this
Bright.These embodiments obviously easily can be made various amendment by person skilled in the art, and described herein
General Principle is applied in other embodiments without through performing creative labour.Therefore, the invention is not restricted to enforcement here
Example, those skilled in the art are according to the announcement of the present invention, and the improvement made without departing from scope and amendment all should be
Within protection scope of the present invention.
Claims (10)
1. a coupled hydrogen making system, it is characterised in that: include control unit, and be all connected with described control unit and mutually
Between the generator unit, energy management unit, Hydrogen Unit and the gas storing and supplementing unit that are sequentially connected with, to be examined by described control unit
Survey all working parameter of described generator unit and described Hydrogen Unit and be analyzed, controlling described energy management unit and institute
State the action of gas storing and supplementing unit；
Described generator unit includes the different types of TRT of at least two energy source；
Energy management unit includes switch switching part and the rectifying part being all connected with described control unit, by described switch
Switching part connects described generator unit and described rectifying part, with under the control of the control unit by described switch switching part
The conversion that connects divided adjusts the work matching relationship of described rectifying part, obtains the electric energy needed for hydrogen manufacturing；
The hydrogen that described Hydrogen Unit produces enters in described gas storing and supplementing unit and stores, and described control unit controls described gas storage
QI invigorating unit mends hydrogen to described Hydrogen Unit is counter in the case of necessary.
Coupled hydrogen making system the most according to claim 1, it is characterised in that: described Hydrogen Unit is water electrolysis hydrogen production list
Unit, including device for preparing hydrogen and hydrogen purification apparatus；Described device for producing hydrogen includes electrolysis bath；
The situation of described necessity refers to the situation less than setting value of the hydrogen content in described purification devices.
Coupled hydrogen making system the most according to claim 1, it is characterised in that: described generator unit includes that wind-power electricity generation fills
Put, and/or photovoltaic power generation apparatus, and/or civil power, and/or tidal power generating device.
Coupled hydrogen making system the most according to claim 1, it is characterised in that: described rectifying part includes AC/DC rectification mould
Block and/or DC/DC rectification module and/or voltage connection in series-parallel module, and/or rectifying conversion power module.
Coupled hydrogen making system the most according to claim 2, it is characterised in that: described generator unit includes civil power, the first wind
Power generation device, the second wind power generation plant and photovoltaic power generation apparatus；
Described civil power connects the first rectifying conversion power module by an AC/DC rectification module, with by an AC/DC rectification mould
Civil power is converted to unidirectional current by block, is carried out rectification and transformation by the first rectifying conversion power module afterwards, to mate described electrolysis
The electricity consumption requirement of groove；
First wind power generation plant connects voltage connection in series-parallel module, the second wind power generation plant by the 2nd AC/DC rectification module
Connecting described voltage connection in series-parallel module by the 3rd AC/DC rectification module, described voltage connection in series-parallel module connects the second rectification and becomes
Change power module, with by the 2nd AC/DC rectification module and the 3rd AC/DC rectification module respectively by the first wind power generation plant and
The output voltage of two wind power generation plants is converted to DC voltage and filters clutter, then is gone here and there by described voltage connection in series-parallel module
After parallel combination, the second rectifying conversion power module proceed rectification and transformation, with mate described electrolysis bath electricity consumption want
Ask；
Described photovoltaic power generation apparatus connects the 3rd rectifying conversion module by DC/DC rectification module, with by DC/DC rectification module pair
The output voltage of described photovoltaic power generation apparatus carries out DC converting, is carried out rectification and change by the 3rd rectifying conversion power module afterwards
Pressure, to mate the electricity consumption requirement of described electrolysis bath；
Preferably, between civil power and an AC/DC rectification module, the first switch is set, the first wind power generation plant and the 2nd AC/
Between DC rectification module, second switch is set, arranges the 3rd between the second wind power generation plant and the 3rd AC/DC rectification module and open
Close, the 4th switch is set between photovoltaic power generation apparatus and DC/DC rectification module；
Preferably, the first rectifying conversion power module and the second rectifying conversion power module are between the inputs by the 5th switch
Being connected in series, the second rectifying conversion power module and the 3rd rectifying conversion power module are between the inputs by the 6th switch series
Connection connects；
Preferably, the first rectifying conversion power module, the second rectifying conversion power module and the 3rd rectifying conversion power module exist
Outfan is connected in parallel；
Preferably, the circuit of the first wind power generation plant to the 2nd AC/DC rectification module is the first wind-power electricity generation circuit, the second wind
Power generation device is the second generating circuit to the circuit of the 3rd AC/DC module；Described voltage connection in series-parallel module includes from the first wind
The positive pole of power generating circuit is connected to the circuit of the positive pole of the second wind-power electricity generation circuit by the 7th switch, from the first wind-power electricity generation
The negative pole of circuit is connected to the circuit of the negative pole of the second wind-power electricity generation circuit by the 8th switch, and from the first wind-power electricity generation line
Circuit node between Lu Yu seven switch is connected between the second wind-power electricity generation circuit and second switch by the 9th switch
The circuit of circuit node；
One outfan of described voltage connection in series-parallel module is the circuit knot of circuit between the 7th switch and the second wind-power electricity generation circuit
Point, another outfan is the circuit node of circuit between the 8th switch and the first wind-power electricity generation circuit；
Preferably, the 7th switch, the 8th switch, the 9th switch are insulated gate bipolar transistor；
Preferably, the 7th switch, the 8th switch, the 9th switch are all connected with described control unit, with in described control unit
Control lower on or off, to control the connected in series or in parallel of the first wind-power electricity generation circuit and the second wind-power electricity generation circuit.
Coupled hydrogen making system the most according to claim 2, it is characterised in that: described generator unit includes civil power, the first wind
Power generation device, the second wind power generation plant and photovoltaic power generation apparatus；
Described civil power connects the first rectifying conversion power module by an AC/DC rectification module, with by an AC/DC rectification mould
Civil power is converted to unidirectional current by block, is proceeded rectification and transformation by the first rectifying conversion power module afterwards, described with coupling
The electricity consumption requirement of electrolysis bath；
First wind power generation plant connects the second rectifying conversion power module by the 2nd AC/DC rectification module, with by the 2nd AC/
The output voltage of the first wind power generation plant is converted to unidirectional current by DC rectification module, afterwards by the second rectifying conversion power module
Proceed rectification and transformation, to mate the electricity consumption requirement of described electrolysis bath；
Second wind power generation plant connects the 3rd rectifying conversion power module by the 3rd AC/DC rectification module, with by the 3rd AC/
The output voltage of the second wind power generation plant is converted to unidirectional current by DC rectification module, afterwards by the second rectifying conversion power module
Proceed rectification and transformation, to mate the electricity consumption requirement of described electrolysis bath；
Described photovoltaic power generation apparatus connects the 4th rectifying conversion power module by DC/DC rectification module, with by DC/DC rectification mould
Block carries out DC converting to the output voltage of described photovoltaic power generation apparatus, is carried out rectification by the 4th rectifying conversion power module afterwards
And transformation, to mate the electricity consumption requirement of described electrolysis bath；
Preferably, arranging switch between civil power and an AC/DC rectification module, the first wind power generation plant and the 2nd AC/DC are whole
Arranging switch between flow module, arrange switch between the second wind power generation plant and the 3rd AC/DC rectification module, photovoltaic generation fills
Put and switch is set between DC/DC rectification module；
Preferably, between the first rectifying conversion power module and the second rectifying conversion power module, the second rectifying conversion power supply mould
Between block and the 3rd rectifying conversion power module, between the 3rd rectifying conversion power module and the 4th rectifying conversion power module all
Switch is set；
Preferably, the first rectifying conversion power module, the second rectifying conversion power module, the 3rd rectifying conversion power module and
Four rectifying conversion power modules are connected in parallel at outfan.
Coupled hydrogen making system the most according to claim 1, it is characterised in that: when the hydrogen storage pressure of described gas storing and supplementing unit
During less than setting value, between described Hydrogen Unit and described gas storing and supplementing unit, arrange hydrogen pressurizer, so that described
The hydrogen that Hydrogen Unit produces is by entering back into described gas storing and supplementing unit after described hydrogen pressurizer supercharging；
Preferably, described hydrogen pressurizer is hydrogen diaphragm type compressor, or hydrogen pressurization device.
Coupled hydrogen making system the most according to claim 1, it is characterised in that: described gas storing and supplementing unit includes hydrogen storage bottle,
And be sequentially arranged on the direction pointing to Hydrogen Unit from hydrogen storage bottle:
First pressure transducer, to detect the Hydrogen Vapor Pressure in described hydrogen storage bottle,
Stable state pressure regulator valve, to adjust the anti-pressure mending hydrogen,
Safety relief valve, to automatically turn on, when described stable state pressure regulator valve fault, hydrogen of releasing,
Gas mass flow controller, to control the anti-flow mending hydrogen,
Hydrogen automatic valve switch, with the instruction according to described control unit, open or close from described gas storing and supplementing unit to
Hydrogen QI invigorating between described Hydrogen Unit, and
Second pressure transducer, to detect the Hydrogen Vapor Pressure of described anti-benefit hydrogen；
Preferably, the hydrogen paths connecting described Hydrogen Unit and described gas storing and supplementing unit at least includes two, and one is hydrogen
Air-flow to for from described Hydrogen Unit to the gas storage passage of described gas storing and supplementing unit, another flows to as from described storage for hydrogen
Gas QI invigorating unit is to the air supply passage of described Hydrogen Unit；
It is further preferred that the first pressure transducer, described stable state pressure regulator valve, described safety relief valve, described gas mass flow
Control valve, described hydrogen automatic valve switch and the second pressure transducer are respectively positioned on described air supply passage.
9. the control method of a coupled hydrogen making system according to claim 1, it is characterised in that: generator unit includes city
Electricity, wind power generation plant and during photovoltaic power generation apparatus, described hydrogen generating system includes three kinds of operational modes:
The first operational mode, for cutting off civil power, is powered by wind power generation plant and photovoltaic power generation apparatus；
The second operational mode is that civil power is independently-powered, cuts off wind power generation plant and photovoltaic power generation apparatus；
The third operational mode is that civil power, wind power generation plant and photovoltaic power generation apparatus are powered simultaneously.
The control method of coupled hydrogen making system the most according to claim 9, it is characterised in that: in the third operational mode,
The priority of wind power generation plant and photovoltaic power generation apparatus generating is higher than civil power；
Preferably, by detecting and be calculated the demand power of Hydrogen Unit, and fill with wind power generation plant and photovoltaic generation
The generated output put compares；
When the generated output of wind power generation plant and photovoltaic power generation apparatus is more than or equal to described demand power, only sent out by wind-force
Electric installation and photovoltaic power generation apparatus generate electricity for Hydrogen Unit；Otherwise, wind power generation plant and the generating of photovoltaic power generation apparatus
Power is completely used for Hydrogen Unit, and insufficient section is supplemented by civil power again.
It is further preferred that Hydrogen Unit includes that electrolysis hydrogen production device, electrolysis hydrogen production device include electrolysis bath, it is electrolysed by collection
The operating temperature of groove and running voltage calculate the demand power of Hydrogen Unit, use below equation to calculate:
P=U2/R(T)
Wherein: P is the demand power of electrolysis bath, U is the running voltage of electrolysis bath, and R is the resistance of electrolysis bath, and T is electrolysis bath
Operating temperature, R (T) represents the R function about T.
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