CN105896576A - Distributed energy system and energy supply method thereof - Google Patents
Distributed energy system and energy supply method thereof Download PDFInfo
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- CN105896576A CN105896576A CN201610347188.6A CN201610347188A CN105896576A CN 105896576 A CN105896576 A CN 105896576A CN 201610347188 A CN201610347188 A CN 201610347188A CN 105896576 A CN105896576 A CN 105896576A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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Abstract
The invention relates to the technical field of energy utilization, in particular to a distributed energy system and an energy supply method thereof. The system is simple in structure and relatively low in cost; electric energy can be converted into a gas for energy storage; peak load shifting can be achieved; and the operation economy of the distributed energy system is improved. The embodiment of the invention provides the distributed energy system. The distributed energy system comprises a power supply device and an electrolysis device, wherein the power supply device is used for supplying electricity to a user; the electrolysis device is electrically connected with the power supply device; a raw material inlet of the electrolysis device is used for introducing carbon dioxide and water; a product outlet of the electrolysis device is used for being communicated with a gas transmission and distribution network; and the electrolysis device is used for electrolyzing the carbon dioxide and water into the gas rich in methane by electric energy and storing the gas rich in methane into the gas transmission and distribution network.
Description
Technical field
The present invention relates to technical field of energy utilization, particularly relate to a kind of distributed energy resource system and
Its energy supply method.
Background technology
So-called " distributed energy " refers to be distributed in the energy comprehensive utilization system of user side, can be independent
Run, it is possible to be incorporated into the power networks, maximize with resource, environmental benefit and determine mode and capacity
System, by user's various energy resources demand, and status of resource allocation carries out system combination optimization,
The reply formula design of employing demand and the novel energy system of modular arrangements, be to supply relative to concentrating
The distributing energy-provision way of energy；It is capable of directly meeting the energy step of the multiple demand of user
Utilize, and provide support by central distribution formula energy resource system and supplement；In environmental conservation,
Partial contamination is decentralized, resource, strives for realizing the target of appropriateness discharge；Defeated at the energy
Send and utilize burst to arrange, reducing the loss of the long distance delivery energy, effectively raise energy
The safety of source utilization and motility.
But, the supply and demand of traditional distributed energy resource system is not particularly stable, especially in state
In interior big city, electricity needs distributed pole in a day 24 hours is uneven, and peak of power consumption is general
Concentrate on morning 8 to 6 pm, and low power consumption be generally concentrated at point at 9 in evening to next day 6,
Therefore, it is achieved peak load shifting becomes the problem that must solve, at present, by converting electrical energy into
The energy storage of other forms gets up to become the main path realizing peak load shifting, but, tradition
Energy storage the most difficult, generally require construction energy storage canister, its construction cost is higher, reduces point
The economy of cloth energy system operation.
Summary of the invention
Present invention is primarily targeted at, it is provided that a kind of distributed energy resource system and energy supply thereof
Method, this system structure is simple, and cost is relatively low, it is possible to converts electrical energy into combustion gas and carries out energy storage,
Realize peak load shifting, improve the economy that described distributed energy resource system runs.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
On the one hand, the embodiment of the present invention provides a kind of distributed energy resource system, including: electric supply installation,
Described electric supply installation is for customer power supply；Also include:
Electrolysis unit, described electrolysis unit electrically connects with described electric supply installation, described electrolysis unit
Material inlet is used for being passed through carbon dioxide and water, and the product exit of described electrolysis unit is used for and combustion gas
Transmission & distribution net connects, and described electrolysis unit is used for utilizing the electric energy by described carbon dioxide and water common-battery solution be
Rich in the combustion gas of methane, and by the described gas storage rich in methane in described gas transmission and distribution net.
Preferably, it is additionally provided with between product exit and the described gas transmission and distribution net of described electrolysis unit
Force (forcing) pump, the input of described force (forcing) pump connects with the product exit of described electrolysis unit, described in add
Pressure delivery side of pump connects with the input of described gas transmission and distribution net.
Optionally, described electric supply installation includes gas power generator, the combustion of described gas power generator
Gas import is used for connecting with the outfan of described gas transmission and distribution net, the flue gas of described gas power generator
Outlet connects with the material inlet of described electrolysis unit, and described gas power generator is used for utilizing combustion gas
The energy that burning produces generates electricity.
Preferably, the outfan of described gas transmission and distribution net and the fuel gas inlet of described gas power generator
Between be additionally provided with decompressor, the input of described decompressor is defeated with described gas transmission and distribution net
Going out end connection, the outfan of described decompressor connects with the fuel gas inlet of described gas power generator.
Further, described pressurization delivery side of pump is provided with the first pressure transducer, and described first
Pressure transducer is for detecting the gaseous-pressure of described pressurization delivery side of pump；
The outfan of described decompressor is provided with the second pressure transducer, described second pressure sensing
Device is for detecting the gaseous-pressure of the outfan of described decompressor.
Optionally, described distributed energy resource system also includes gas meter, flow meter；
Described gas meter, flow meter includes control module, described control module respectively with described first pressure sensing
Device, the second pressure transducer, force (forcing) pump and decompressor electrical connection；
Described control module is for the described force (forcing) pump according to described first pressure transducer transmission
The valve opening of force (forcing) pump described in the gas pressure regulation of outfan so that the output of described force (forcing) pump
The gaseous-pressure of end is maintained in the first preset range, sends according to described second pressure transducer
The valve opening of decompressor described in the gas pressure regulation of the outfan of described decompressor so that
The gaseous-pressure of the outfan of described decompressor is maintained at the second preset range.
Preferably, described gas meter, flow meter also includes: metering module and display module；
Described control module is additionally operable to gaseous-pressure signal by described pressurization delivery side of pump respectively
It is sent to described metering module, described meter with the gaseous-pressure signal of the outfan of described decompressor
Amount module is for being converted into combustion by the accumulated calculating of gaseous-pressure signal of described pressurization delivery side of pump
Gas aeration quantity signal, and described combustion gas aeration quantity signal is shown on described display module, by institute
The accumulated calculating of gaseous-pressure signal of the outfan stating decompressor is converted into combustion gas gas consumption letter
Number, and described combustion gas gas consumption signal is shown on described display module.
On the other hand, the embodiment of the present invention provides the energy supply side of a kind of distributed energy resource system
Method, is applied to distributed energy resource system as above, including:
Step 1) pass through described electric supply installation to described customer power supply；
Step 2) utilize electric energy using described carbon dioxide and water as electrolysis by described electrolysis unit
Raw material common-battery solution is the combustion gas rich in methane, and by the described gas storage rich in methane in described combustion
In gas transmission & distribution net.
Preferably, described electric supply installation includes gas power generator, in described step 2) the most also
Including: fuel gas buring in described gas power generator power generation process is produced containing carbon dioxide and
The flue gas of water is passed through in described electrolysis unit.
Further alternative, utilize electric energy described carbon dioxide and water to be made by described electrolysis unit
It is also to include rich in before the combustion gas of methane for electrolysis raw material common-battery solution:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described confession
Described electrolysis unit more than the subfam. Spiraeoideae of described user, is then powered on by the delivery of electric installation,
Otherwise, then described electrolysis unit is carried out lower electricity；
Or, when described electric supply installation also includes electrical network, calculate described electrolysis according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by device, if described profit is just, then lead to
Cross described electrical network described electrolysis unit is powered on；Otherwise, then under described electrolysis unit being carried out
Electricity；
Preferably, described electric supply installation also includes electrical network, utilizes electric energy to incite somebody to action by described electrolysis unit
Described carbon dioxide and water are also to include rich in before the combustion gas of methane as electrolysis raw material common-battery solution:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described confession
The delivery of electric installation more than the subfam. Spiraeoideae of described user, then calculates described electrolysis according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by device, if described profit is just, then lead to
Cross described electrical network described electrolysis unit is powered on；Otherwise, then under described electrolysis unit being carried out
Electricity.
The embodiment of the present invention provides a kind of distributed energy resource system and energy supply method thereof, by setting
Put electrolysis unit, and described electrolysis unit is electrically connected with described electric supply installation, when described for Denso
Put when described customer power supply, combustion gas can be converted electrical energy into by described electrolysis unit and store up
Can, it is possible to realize peak load shifting, this system structure is simple, and cost is relatively low, it is possible to increase described point
The economy of cloth energy system operation.Overcome distributed energy resource system in prior art realizing
The defect that during peak load shifting, energy storage is difficult, relatively costly.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
In describing embodiment, the required accompanying drawing used is briefly described, it should be apparent that under,
Accompanying drawing during face describes is only some embodiments of the present invention, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain it according to these accompanying drawings
Its accompanying drawing.
The structural representation of a kind of distributed energy resource system that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 2 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 3 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 4 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 5 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 6 provides for the embodiment of the present invention；
The structural representation of the another kind of distributed energy resource system that Fig. 7 provides for the embodiment of the present invention；
The energy supply method of a kind of distributed energy resource system that Fig. 8 provides for the embodiment of the present invention
Flow chart.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that described embodiment is only the present invention one
Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under not making creative work premise,
Broadly fall into the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " on ", D score, " front ",
" afterwards ", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " etc. indicate
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of
Describe the present invention and simplification description rather than instruction or the device of hint indication or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention
Restriction.In describing the invention, except as otherwise noted, " multiple " are meant that two or two
More than individual.
On the one hand, seeing Fig. 1, the embodiment of the present invention provides the knot of a kind of distributed energy resource system 001
Structure schematic diagram, including: electric supply installation 1, described electric supply installation 1 is for customer power supply；Also include:
Electrolysis unit 2, the material inlet of described electrolysis unit 2 is used for being passed through carbon dioxide and water, institute
Stating the product exit of electrolysis unit 2 for connecting with gas transmission and distribution net 01, described electrolysis unit 2 is used for
Utilizing electric energy is the combustion gas rich in methane by described carbon dioxide and water common-battery solution, and by described rich in
The gas storage of methane is in described gas transmission and distribution net 01.
The embodiment of the present invention provides a kind of distributed energy resource system, by arranging electrolysis unit 2, and
Described electrolysis unit 2 is electrically connected with described electric supply installation 1, when described electric supply installation 1 is to described use
When family powers, combustion gas can be converted electrical energy into by described electrolysis unit 2 and carry out energy storage, it is possible to
Realizing peak load shifting, this system structure is simple, and cost is relatively low, it is possible to increase described distributed energy
The economy that origin system runs.Overcome distributed energy resource system in prior art and realize peak clipping
The defect that when filling out paddy, energy storage is difficult, relatively costly.
Wherein, described electrolysis unit 2 is not limited.
Generally, electrolysis unit 2 includes electrolyte, additional power source and anode and cathode；Wherein, power up outward
Source can be accumulator, and the positive pole of described additional power source electrically connects with described anode, described outer powers up
The negative pole in source electrically connects with described negative electrode, and described negative electrode and described anode are all electrically connected with described electrolyte
Connecing, material obtains electronics generation reduction reaction at anode betatopic generation oxidation reaction, material at negative electrode,
Thus realize the electrolysis to material.Enable to material generation redox reaction and generate another kind
Novel substance.Wherein it is possible to select suitably to be electrolysed according to given reaction raw materials and product
Condition.
Exemplary, described electrolysis unit 2 can be electrolytic tank of solid oxide, and cathode material can
Thinking nickel and the steady zirconic mixed conductor of yttrium, anode material can be La0.8Sr0.2MnO3Steady with yttrium
Zirconic mixed conductor, described electrolyte can be scandium oxide-stabilizing zirconia.In the reaction,
Unstrpped gas (carbon dioxide and water) is diffused at the three phase boundary of electrolytic tank of solid oxide and occurs
Electrochemical reaction, carbon dioxide and water generate hydrogen and carbon monoxide etc. in negative electrode generation reduction reaction,
The chemical equation that negative electrode and anode are occurred is as follows:
Negative electrode: 2CO2+4e-→2CO+2O2-；2H2O+4e-→2H2+2O2-；
Anode: 2O2-→O2+4e-。
Common-battery solution H2O-CO2The carbon monoxide generated and hydrogen are under the catalytic action of cathodic metal nickel
React generation methane at high temperature under high pressure, and equation is as follows:
CO+3H2=CH4+H2O。
In one embodiment of the invention, seeing Fig. 2, the product exit of described electrolysis unit 2 is with described
Be additionally provided with force (forcing) pump 3 between the input of gas transmission and distribution net 01, the input of described force (forcing) pump 3 with
The product exit connection of described electrolysis unit 2, the outfan of described force (forcing) pump 3 and described gas transmission and distribution
The input connection of net 01.
Owing to the gaseous-pressure in gas transmission and distribution net 01 is relatively big, by arranging force (forcing) pump 3, it is possible to will
The combustion gas that described electrolysis unit 2 produces is filled with in gas transmission and distribution net 01 with certain pressure, it is simple to fill
Gas, improves the safety of described gas transmission and distribution, stability and high efficiency.
Wherein, not limiting described electric supply installation 1, usual distributed energy resource system 001 uses combustion
One or more combinations in gas electric generating apparatus, electrical network and renewable energy power generation device supply
Electricity.
In another embodiment of the present invention, seeing Fig. 3, described electric supply installation 1 includes that fuel gas generation fills
Putting 11, the fuel gas inlet of described gas power generator 11 is for the output with described gas transmission and distribution net 01
End connection, the exhanst gas outlet of described gas power generator 11 connects with the material inlet of described electrolysis unit 2
Logical, described gas power generator 11 generates electricity for the energy utilizing fuel gas buring to produce.
By described gas power generator 11 is produced in power generation process containing carbon dioxide and
The flue gas of water is passed through in described electrolysis unit 2, and described electrolysis unit 2 can utilize electric energy by described two
Carbonoxide and water common-battery solution are the combustion gas rich in methane, reduce the discharge of carbon dioxide.
In one embodiment of the invention, see Fig. 4, the outfan of described gas transmission and distribution net 01 and institute
State and between the fuel gas inlet of gas power generator 11, be additionally provided with decompressor 4, described decompressor 4
Input connect with the outfan of described gas transmission and distribution net 01, the outfan of described decompressor 4 with
The fuel gas inlet connection of described gas power generator 11.
Owing to the gaseous-pressure in gas transmission and distribution net 01 is relatively big, by arranging decompressor 4, it is possible to
Combustion gas in described gas transmission and distribution net 01 is reduced pressure, reduces the flow of gas transmission and distribution, reduce combustion
Gas loses, and improves combustion gas utilization rate, improves the safety of described gas transmission and distribution, stability and efficiently
Property.
In another embodiment of the present invention, seeing Fig. 5, the outfan of described force (forcing) pump 3 is provided with
One pressure transducer 31, described first pressure transducer 31 is for detecting the outfan of described force (forcing) pump 3
Gaseous-pressure；
The outfan of described decompressor 4 is provided with the second pressure transducer 41, described second pressure
Sensor 41 is for detecting the gaseous-pressure of the outfan of described decompressor 4.
In embodiments of the present invention, by arranging described first pressure transducer 31, it is possible to described
The gaseous-pressure of the outfan of force (forcing) pump 3 detects, and described user can be according to actual the blowing pressure pair
The valve opening of described force (forcing) pump 3 is adjusted；Same, by arranging described second pressure sensing
Device 41, it is possible to detecting the gaseous-pressure of the outfan of described decompressor 4, described user can
According to reality atmospheric pressure, the valve opening of described decompressor 4 is adjusted.
In another embodiment of the present invention, seeing Fig. 6, described distributed energy resource system also includes combustion
Gas meter 5；
Described gas meter, flow meter 5 includes control module 51, and described control module 51 is pressed with described first respectively
Force transducer the 31, second pressure transducer 41, force (forcing) pump 3 and decompressor 4 electrically connect；
Described control module 51 is for the described pressurization sent according to described first pressure transducer 31
The valve opening of force (forcing) pump 3 described in the gas pressure regulation of the outfan of pump 3 so that described force (forcing) pump 3
The gaseous-pressure of outfan be maintained in the first preset range, according to described second pressure transducer
The valve of decompressor 4 described in the gas pressure regulation of the outfan of the 41 described decompressors 4 sent
Aperture so that the gaseous-pressure of the outfan of described decompressor 4 is maintained at the second preset range.
By arranging control module 51, it is possible to the gaseous-pressure of the outfan of described force (forcing) pump 3 and
The gaseous-pressure of the outfan of described decompressor 4 is adjusted, to the blowing pressure of combustion gas with use gas
Pressure realizes automatically controlling.
Wherein, described control module 51 can include one or more processor, memorizer, use
Family interface, network interface and communication bus.
Communication bus is used for the communication in gas meter, flow meter between each building block.User interface is used for inserting
Connect external equipment, such as touch screen, mouse and keyboard etc., to receive the information of user's input.
Network interface carries out intercommunication for described gas meter, flow meter and outside, and this network interface mainly includes
Wireline interface and wave point.
Memorizer can be used for storing software program and module, and data base, such as the embodiment of the present invention
Described in programmed instruction/module corresponding to the valve control method of force (forcing) pump.Memorizer can include
High speed random access memory, may also include nonvolatile memory, as one or more magnetic is deposited
Storage device, flash memory or other non-volatile solid state memories.In some instances, storage
Device can farther include the memorizer remotely located relative to processor, and these remote memories can
To be connected to described control equipment by network.The example of above-mentioned network includes but not limited to interconnection
Net, intranet, LAN, mobile radio communication and combinations thereof.
Software program that processor is stored in memorizer by operation and module, thus perform
The application of various functions and data process, and such as, processor is by calling the pressurization in memorizer
The application program of the valve control method of pump 3, to realize the valve of quickly and accurately force (forcing) pump 3
Gate control process.
In another embodiment of the present invention, seeing Fig. 6, described gas meter, flow meter 5 also includes: metering module
52 and display module 53；
Described control module 51 is additionally operable to the gaseous-pressure letter of outfan by described force (forcing) pump 3 respectively
Number and the gaseous-pressure signal of outfan of described decompressor 4 be sent to described metering module 52, institute
State metering module 52 for by the accumulated calculating of gaseous-pressure signal of the outfan of described force (forcing) pump 3
It is converted into combustion gas aeration quantity signal, and described combustion gas aeration quantity signal is shown at described display module
On 53, the accumulated calculating of gaseous-pressure signal of the outfan of described decompressor 4 is converted into combustion gas
Gas consumption signal, and described combustion gas gas consumption signal is shown on described display module 53.
In embodiments of the present invention, described metering module 52 has metering effect, described display module
53 effects with display, described metering module 52 is by receiving the combustion of the outfan of described force (forcing) pump 3
Atmospheric pressure signal, and by digital-to-analogue conversion, described gaseous-pressure signal is converted into gas flow signal,
It being carried out accumulation calculating and obtains combustion gas aeration quantity, described combustion gas aeration quantity can show described aobvious
Show in module 53 such that it is able to realize the final clearing to combustion gas aeration quantity, same, described meter
Amount module 52 is by receiving the gaseous-pressure signal of the outfan of described decompressor 4, and passes through digital-to-analogue
Described gaseous-pressure signal is converted into gas flow signal by conversion, and it is carried out accumulation calculating acquisition
Combustion gas gas consumption, described combustion gas gas consumption can show on described display module 53 such that it is able to
Realize the final clearing to combustion gas gas consumption, be capable of by combustion gas gas consumption and combustion gas aeration quantity
The clearing of gas consumption actual to combustion gas.
Wherein, the structure of described gas power generator 11 is not limited, if described fuel gas generation
Device can utilize combustion gas to realize generating electricity.
Generally, described gas power generator 11 is made up of boiler, steam turbine and electromotor, wherein,
The fuel gas inlet that fuel gas inlet is described boiler of described gas power generator 11, the steaming of described boiler
Vapor outlet connects with the cylinder of described steam turbine, and described steam turbine is connected with described generator drive gear.
Operationally, described boiler utilizes fuel gas buring to produce steam, and is supplied to by described steam described
The cylinder of steam turbine, the cylinder acting of described steam turbine drives the motion of described electromotor, thus by machine
Tool can be converted into electric energy.
In one embodiment of the invention, seeing Fig. 7, described gas power generator 11 includes: be used for
Flue gas carries out the indirect heat exchanger (not shown) of heat exchange, and described distributed energy resource system is also
Including heat pump of recovering residual heat 6, the heat transferring medium outlet of described indirect heat exchanger and described waste heat recovery heat
The thermal source inlet communication of pump 6, described heat pump of recovering residual heat 6 is for being converted to the energy that thermal source provides
Cold heat energy, and it is supplied to subscriber equipment.
In embodiments of the present invention, it is possible to the waste heat that will produce in gas power generator 11 power generation process
Be converted to cold heat energy, thus realize trilogy supply hot and cold, electric, improve energy utilization rate.
Wherein, heat pump of recovering residual heat is a kind of by relying on the effect of absorber-generator group to complete
The refrigeration machine of kind of refrigeration cycle.It is with binary solution as working medium, and wherein low boiling component is used as refrigeration
Agent, i.e. utilizes its evaporation to freeze；High boiling component is used as absorbent, i.e. utilizes it to cold-producing medium
The Absorption of steam completes cycle of operation.Absorption Refrigerator is mainly made up of several heat exchangers.
Conventional Absorption Refrigerator has ammonia water absorbing refrigerator and lithium-bromide absorption-type refrigerating machine two kinds.
As a example by lithium-bromide absorption-type refrigerating machine, in running, when lithium bromide water solution is in generator
After the heating of thermal source, the water in solution constantly vaporizes；Along with the continuous vaporization of water, generator
Interior lithium bromide water solution concentration constantly raises, and enters absorber；Steam enters condenser, quilt
Condense after cooling water temperature in condenser, become the aqueous water of high pressure low temperature；When in condenser
When water enters vaporizer by choke valve, rapid expansion and vaporize, and inhale in a large number in vaporescence
The heat of chilled water in receipts vaporizer, thus reach the purpose of cooling refrigeration；In the process, low
Temperature steam enters absorber, is absorbed by the lithium bromide water solution in absorber, and solution concentration is progressively
Reduce, then sent back to generator by circulating pump, complete whole circulation.So move in endless cycles, make continuously
Take cold.
Wherein, described heat transferring medium can be water, it is also possible to for air.
In distributed energy resource system, generally based on described gas power generator 11, described electrical network
Being auxiliary to described customer power supply, certainly, described distributed energy resource system can also include renewable energy
Source generating set, with heat peak period, often gas power generator 11 electricity disclosure satisfy that
In the case of user's subfam. Spiraeoideae, and when also having electricity residue, then by described electrolysis unit 2 by unnecessary
Power consumption falls for gas storage, additionally it is possible to play the effect of stable electrical network；If described regenerative resource
When the delivery of TRT disclosure satisfy that the subfam. Spiraeoideae of subscriber equipment, it would however also be possible to employ described can be again
Raw energy source electric generating device is powered to described electrolysis unit 2, is converted into carbon dioxide and water rich in methane
Gas storage in described gas transmission and distribution net 01, in the process, described combustion gas can be not turned on
TRT 11 generates electricity, in such manner, it is possible to reduce cost, improves efficiency of energy utilization.
It should be noted that in actual applications, can be according to the actual need for electricity of user to institute
State electrolysis unit 2 power on and lower electricity selects, such as, when the delivery of electric supply installation 1 is more than
During the subfam. Spiraeoideae of described user, then described electrolysis unit 2 can be powered on, in such manner, it is possible to by unnecessary
Electric energy be converted into combustion gas and store, stablize electrical network, and when the delivery of electric supply installation 1 is less than
When the subfam. Spiraeoideae of described user, then described electrolysis unit 2 can be carried out lower electricity, to ensure user
Basic electricity demand.
Also, it should be noted generally electricity needs was distributed imbalance, in vain in one day 24 hours
It is peak of power consumption, and be low power consumption in the evening, the time-of-use tariffs policy formulated according to country, can
With when low power consumption, electrical network is used to power to described electrolysis unit 2, by described carbon dioxide and water
It is converted into the gas storage rich in methane in described gas transmission and distribution net 1, so can reduce and be electrolyzed to produce
This, in the process, can be not turned on described gas power generator 11 and described development of renewable energy
Electric installation generates electricity, and can reduce cost equally, improves efficiency of energy utilization.
On the other hand, the embodiment of the present invention provides the energy supply side of a kind of distributed energy resource system
Method, is applied to distributed energy resource system as above, sees Fig. 8, including:
Step 1) pass through described electric supply installation to described customer power supply；
Step 2) utilize electric energy using described carbon dioxide and water as electrolysis by described electrolysis unit
Raw material common-battery solution is the combustion gas rich in methane, and by the described gas storage rich in methane in described combustion
In gas transmission & distribution net.
The energy supply method of the embodiment of the present invention a kind of distributed energy resource system of offer, wherein,
Described electric supply installation to described customer power supply time, utilize electric energy by institute by described electrolysis unit
State the carbon dioxide in the flue gas that fuel gas buring produces and water common-battery solution be the combustion gas rich in methane,
Again by the described gas storage rich in methane in described gas transmission and distribution net, it is possible to realize peak clipping and fill out
Paddy, improves the economy that described distributed energy resource system runs.Overcome in prior art and be distributed
The defect that the energy storage when realizing peak load shifting of formula energy resource system is difficult, relatively costly.
Wherein, when being powered by distributed energy resource system, electric supply installation can be that combustion gas is sent out
At least one in electric installation, electrical network and renewable energy power generation device,
In one embodiment of the invention, described electric supply installation includes gas power generator, in described step
Rapid 2) also include before: by containing that fuel gas buring in described gas power generator power generation process produces
The flue gas of carbon dioxide and water is passed through in described electrolysis unit.
In embodiments of the present invention, it is possible to gas power generator is used titanium dioxide produced by combustion gas
Carbon and water are the combustion gas rich in methane through described electrolysis unit common-battery solution, it is possible to reduce carbon dioxide
Discharge, realizes energy conversion further, improves energy utilization rate.
In another embodiment of the present invention, utilize electric energy by described titanium dioxide by described electrolysis unit
Carbon and water are also to include rich in before the combustion gas of methane as electrolysis raw material common-battery solution:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described confession
Described electrolysis unit more than the subfam. Spiraeoideae of described user, is then powered on by the delivery of electric installation,
Otherwise, then described electrolysis unit is carried out lower electricity；
Or, when described electric supply installation also includes electrical network, calculate described electrolysis according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by device, if described profit is just, then lead to
Cross described electrical network described electrolysis unit is powered on；Otherwise, then under described electrolysis unit being carried out
Electricity.
In embodiments of the present invention, when described electric supply installation delivery more than described user need electricity
Just described electrolysis unit is powered on during amount, it is possible to ensure the basic electricity demand of user, improve
The stability that described distributed energy resource system runs.When introducing electrical network to described user and described electrolysis
When device is powered, due to country formulate time-of-use tariffs policy, electricity price between peak and valley reach 4 times with
On, therefore, calculate described electrolysis unit by described carbon dioxide and water common-battery solution according to Spot Price
For the profit of combustion gas, profit deducts electrolysis cost, if profit is for just to have illustrated equal to the value of combustion gas
Li Ketu, then use electrolysis unit to convert electrical energy into gas storage, such as, low in electricity consumption
Gu Shi, electricity price is relatively low, lucrative by calculating discovery, then convert electrical energy into gas storage and rise
Coming, when peak of power consumption, electricity price is higher, at this moment the combustion gas of storage can be used for generating to make up
The electrical demand of peak of power consumption, in such manner, it is possible to realize peak load shifting, improves described distribution further
The economy of formula energy system operation.
In another embodiment of the present invention, described electric supply installation also includes electrical network, by described electrolysis
Device utilizes electric energy to be the combustion rich in methane using described carbon dioxide and water as electrolysis raw material common-battery solution
Also include before gas:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described confession
The delivery of electric installation more than the subfam. Spiraeoideae of described user, then calculates described electrolysis according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by device, if described profit is just, then lead to
Cross described electrical network described electrolysis unit is powered on；Otherwise, then under described electrolysis unit being carried out
Electricity.
In embodiments of the present invention, ensureing the basic electricity demand of user, and converting electrical energy into
When combustion gas is lucrative, described electrolysis unit is powered on, otherwise, then it is carried out lower electricity,
Stability and economy that described distributed energy resource system runs can be improved further.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not
Be confined to this, any those familiar with the art in the technical scope that the invention discloses,
Change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, originally
The protection domain of invention should be as the criterion with described scope of the claims.
Claims (11)
1. a distributed energy resource system, including electric supply installation, described electric supply installation for
Customer power supply；It is characterized in that, also include:
Electrolysis unit, described electrolysis unit electrically connects with described electric supply installation, described electrolysis unit
Material inlet is used for being passed through carbon dioxide and water, and the product exit of described electrolysis unit is used for and combustion gas
Transmission & distribution net connects, and described electrolysis unit is used for utilizing the electric energy by described carbon dioxide and water common-battery solution be
Rich in the combustion gas of methane, and by the described gas storage rich in methane in described gas transmission and distribution net.
Distributed energy resource system the most according to claim 1, it is characterised in that
It is additionally provided with force (forcing) pump between product exit and the described gas transmission and distribution net of described electrolysis unit,
The input of described force (forcing) pump connects with the product exit of described electrolysis unit, described force (forcing) pump defeated
Go out end to connect with the input of described gas transmission and distribution net.
Distributed energy resource system the most according to claim 2, it is characterised in that
Described electric supply installation includes gas power generator, and the fuel gas inlet of described gas power generator is used
Connect in the outfan with described gas transmission and distribution net, the exhanst gas outlet of described gas power generator and institute
Stating the material inlet connection of electrolysis unit, described gas power generator is used for utilizing fuel gas buring to produce
Energy generate electricity.
Distributed energy resource system the most according to claim 3, it is characterised in that
Between outfan and the fuel gas inlet of described gas power generator of described gas transmission and distribution net also
Being provided with decompressor, the input of described decompressor connects with the outfan of described gas transmission and distribution net
Logical, the outfan of described decompressor connects with the fuel gas inlet of described gas power generator.
Distributed energy resource system the most according to claim 4, it is characterised in that
Described pressurization delivery side of pump is provided with the first pressure transducer, described first pressure transducer
For detecting the gaseous-pressure of described pressurization delivery side of pump；
The outfan of described decompressor is provided with the second pressure transducer, described second pressure sensing
Device is for detecting the gaseous-pressure of the outfan of described decompressor.
Distributed energy resource system the most according to claim 5, it is characterised in that
Described distributed energy resource system also includes gas meter, flow meter；
Described gas meter, flow meter includes control module, described control module respectively with described first pressure sensing
Device, the second pressure transducer, force (forcing) pump and decompressor electrical connection；
Described control module is for the described force (forcing) pump according to described first pressure transducer transmission
The valve opening of force (forcing) pump described in the gas pressure regulation of outfan so that the output of described force (forcing) pump
The gaseous-pressure of end is maintained in the first preset range, sends according to described second pressure transducer
The valve opening of decompressor described in the gas pressure regulation of the outfan of described decompressor so that
The gaseous-pressure of the outfan of described decompressor is maintained at the second preset range.
7. according to the distributed energy resource system described in claim 5 or 6, it is characterised in that
Described gas meter, flow meter also includes: metering module and display module；
Described control module is additionally operable to gaseous-pressure signal by described pressurization delivery side of pump respectively
It is sent to described metering module, described meter with the gaseous-pressure signal of the outfan of described decompressor
Amount module is for being converted into combustion by the accumulated calculating of gaseous-pressure signal of described pressurization delivery side of pump
Gas aeration quantity signal, and described combustion gas aeration quantity signal is shown on described display module, by institute
The accumulated calculating of gaseous-pressure signal of the outfan stating decompressor is converted into combustion gas gas consumption letter
Number, and described combustion gas gas consumption signal is shown on described display module.
8. an energy supply method for distributed energy resource system, is applied to claim 1-7 arbitrary
Distributed energy resource system described in Xiang, it is characterised in that including:
Step 1) pass through described electric supply installation to described customer power supply；
Step 2) utilize electric energy using described carbon dioxide and water as electrolysis by described electrolysis unit
Raw material common-battery solution is the combustion gas rich in methane, and by the described gas storage rich in methane in described combustion
In gas transmission & distribution net.
Energy supply method the most according to claim 8, it is characterised in that
Described electric supply installation includes gas power generator, in described step 2) also include before: will
In described gas power generator power generation process fuel gas buring produce containing carbon dioxide and the flue gas of water
It is passed through in described electrolysis unit.
Energy supply method the most according to claim 8 or claim 9, it is characterised in that
Electric energy is utilized described carbon dioxide and water to be total to as electrolysis raw material by described electrolysis unit
Electrolysis is for also to include rich in before the combustion gas of methane:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described confession
Described electrolysis unit more than the subfam. Spiraeoideae of described user, is then powered on by the delivery of electric installation,
Otherwise, then described electrolysis unit is carried out lower electricity；
Or, when described electric supply installation also includes electrical network, calculate described electrolysis according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by device, if described profit is just, then lead to
Cross described electrical network described electrolysis unit is powered on；Otherwise, then under described electrolysis unit being carried out
Electricity.
11. energy supply methods according to claim 10, it is characterised in that
Described electric supply installation also includes electrical network, utilizes electric energy by described dioxy by described electrolysis unit
Changing carbon and water as electrolysis raw material common-battery solution is also to include rich in before the combustion gas of methane:
The subfam. Spiraeoideae of the delivery of described electric supply installation with described user is compared, if described
The delivery of electric supply installation more than the subfam. Spiraeoideae of described user, then calculates described according to Spot Price
Described carbon dioxide and water common-battery solution are the profit of combustion gas by electrolysis unit, if described profit is just,
Then by described electrical network, described electrolysis unit is powered on；Otherwise, then to described electrolysis unit
Carry out lower electricity.
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| CN201610347188.6A CN105896576A (en) | 2016-05-23 | 2016-05-23 | Distributed energy system and energy supply method thereof |
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