CN116581795A - Provincial-level cooperative multi-type electrolytic hydrogen production method considering electric energy transmission - Google Patents
Provincial-level cooperative multi-type electrolytic hydrogen production method considering electric energy transmission Download PDFInfo
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- CN116581795A CN116581795A CN202310585218.7A CN202310585218A CN116581795A CN 116581795 A CN116581795 A CN 116581795A CN 202310585218 A CN202310585218 A CN 202310585218A CN 116581795 A CN116581795 A CN 116581795A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 78
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 77
- 239000001257 hydrogen Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- 230000009194 climbing Effects 0.000 claims abstract description 16
- 238000004146 energy storage Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/008—Systems for storing electric energy using hydrogen as energy vector
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
Abstract
The invention discloses a provincial cooperative multi-type electrolytic hydrogen production method considering electric energy transmission, which relates to the application field of comprehensive energy systems and comprises the steps of establishing a provincial electric energy transmission model, modeling electric energy transmission through an extra-high voltage transmission line in a provincial area, fully simulating the actual utilization condition of the extra-high voltage transmission line, and establishing a multi-type electrolytic tank model considering the power characteristic and the climbing characteristic according to the difference of the working characteristics of different electrolytic tanks, so that the actual working states of different electrolytic tanks are effectively simulated. Modeling is conducted on the rest of the models, such as a fan, a photovoltaic device, a hydropower device, a compressor, a hydrogen storage tank, energy storage equipment and the like, a provincial collaborative supply chain model is built, finally, a provincial collaborative multi-type electrolytic hydrogen production system considering electric energy transmission is built with the minimum total operation cost of the system as a target, and provincial collaborative is achieved to reduce the overall hydrogen production cost.
Description
Technical Field
The invention belongs to the technical field of comprehensive energy system application, and particularly relates to a provincial level cooperative multi-type electrolytic hydrogen production method considering electric energy transmission.
Background
The renewable energy source electrolytic hydrogen production is taken as an important means for absorbing high-proportion fluctuation renewable energy sources, so that mass new energy source generating capacity brought by high-proportion new energy source grid connection is solved, the popularization and development of zero hydrocarbon energy are effectively promoted, and the renewable energy source electrolytic hydrogen production becomes one of important sources of hydrogen energy. At present, the new energy is adopted for electrolytic hydrogen production, and the following three problems exist: 1. the hydrogen energy cannot be stably supplied due to the intermittence and fluctuation of renewable energy, and meanwhile, the investment of an electrolytic tank is high, and the hydrogen production cost is high; 2. the difference of resources such as wind and light in different areas is remarkable, so that the hydrogen production cost difference among the areas is extremely large, the comprehensive development of hydrogen energy is not facilitated, and 3, part of areas have huge new energy hydrogen production potential, but the high-efficiency utilization of new energy is lacking due to limited local hydrogen demands.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a provincial cooperative multi-type electrolytic hydrogen production method considering electric energy transmission.
The aim of the invention can be achieved by the following technical scheme:
a provincial level cooperative multi-type electrolytic hydrogen production method considering electric energy transmission comprises the following steps:
modeling electric energy transmission through an extra-high voltage transmission line in a provincial area, simulating the actual utilization condition of the extra-high voltage transmission line, and establishing a provincial electric energy transmission model;
aiming at the difference of the working characteristics of different types of electrolytic cells, a multi-type electrolytic cell model considering the power characteristic and the climbing characteristic is established, the real working states of different electrolytic cells of the model are different, and the multi-type electrolytic cell model is established;
modeling aiming at a model comprising a wind turbine, a photovoltaic cell, water and electricity, a compressor, a hydrogen storage tank and energy storage equipment, and establishing a provincial collaborative supply chain model;
and establishing a provincial collaborative multi-type electrolytic hydrogen production model taking the minimum total operation cost of the system as a target, wherein the provincial collaborative multi-type electrolytic hydrogen production model is considered for electric energy transmission.
Further, the method for establishing the provincial power transmission model comprises the following steps:
the provincial power transmission power is constrained and the provincial power transmission power is constrained by the number of hours of utilization.
Further, the establishing the power characteristic and the climbing characteristic of the multi-type electrolytic tank model comprises the following steps:
the power characteristics and the climbing characteristics of the alkaline water electrolyzer, the power characteristics and the climbing characteristics of the proton exchange membrane electrolyzer, and the power characteristics and the climbing characteristics of the high-temperature solid oxide electrolyzer are determined.
Further, the method for establishing the provincial collaborative supply chain model comprises the following steps:
under the condition of electric power balance of the provincial cooperative supply chain system, the standby power of the provincial cooperative supply chain system, the new energy generating capacity of the provincial cooperative supply chain system and the equipment capacity of the provincial cooperative supply chain system are constrained.
Further, the provincial cooperative supply chain system electric power balance is specifically as follows
wherein , and />Output of photovoltaic cells (pv), wind turbines (wt) and hydropower stations (hg) in the s-th region at time t, respectively, +.>For the output of the kth thermal generator set (tg) in the s-th region at time t,/> and />Charging and discharging power of accumulator energy storage at t time in s-th area respectively,/for>For the net electrical load of the s-th region at time t (without taking into account the electrical load under the power transmission between provinces),>the input electric power of the compressor at the time t in the s-th region.
Further, the saidThe negative sign should be taken to indicate the output of electric energy, for the power receiver, < ->A positive sign should be taken to indicate the power input.
Further, the method for establishing the provincial collaborative supply chain model further comprises the following steps:
and restraining the operation of the wind-solar equipment of the provincial cooperative supply chain, the operation of the hydropower station of the provincial cooperative supply chain, the operation of the thermal generator set of the provincial cooperative supply chain, the energy storage operation of the storage battery of the provincial cooperative supply chain, the operation of the compressor of the provincial cooperative supply chain, the operation of the hydrogen storage tank of the provincial cooperative supply chain and the hydrogen load of the provincial cooperative supply chain.
Furthermore, the method for establishing the provincial level collaborative multi-type electrolytic hydrogen production model by considering the electric energy transmission comprises the following steps:
establishing an objective function of a provincial level cooperative multi-type electrolytic hydrogen production model considering electric energy transmission, wherein the objective function is as follows:
wherein COST is the total COST of the system in provincial collaborative regions, C inv,s 、C om,s and Cop,s The system annual investment cost, the annual fixed operation and maintenance cost and the annual variable operation and maintenance cost of the s-th region are respectively.
The invention has the beneficial effects that:
therefore, the invention further considers the technology of inter-provincial power transmission and multi-type electrolytic cells on the basis of a provincial collaborative supply chain model. And secondly, establishing a multi-type electrolytic tank model considering power characteristics and climbing characteristics according to the difference of the working characteristics of different types of electrolytic tanks, and effectively simulating the real working states of different electrolytic tanks. Modeling is conducted on the rest of the models, such as a fan, a photovoltaic device, a hydropower device, a compressor, a hydrogen storage tank, energy storage equipment and the like, a provincial collaborative supply chain model is built, finally, a provincial collaborative multi-type electrolytic hydrogen production system considering electric energy transmission is built with the minimum total operation cost of the system as a target, and provincial collaborative is achieved to reduce the overall hydrogen production cost.
Renewable energy electrolysis hydrogen production is taken as an important means for absorbing high-proportion fluctuation renewable energy, so that on one hand, mass new energy generating capacity brought by high-proportion new energy grid connection is solved, on the other hand, popularization and development of zero hydrocarbon energy are effectively promoted, and the renewable energy electrolysis hydrogen production becomes one of important sources of hydrogen energy
The invention considers the provincial cooperation multi-type electrolytic hydrogen production technology of electric energy transmission, effectively simulates the actual running conditions of the provincial electric energy transmission and multi-type electrolytic tanks, and realizes provincial cooperation so as to reduce the overall hydrogen production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a block diagram of a provincial collaborative multi-type electrolytic hydrogen production system of the present invention that takes into account power transfer;
fig. 2 is a flow chart of the method steps of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention further considers the technology of inter-provincial power transmission and multi-type electrolytic cells on the basis of a provincial collaborative supply chain model. In addition, the mature ultra-high voltage transmission technology in China is considered, and large-scale power transmission can be realized. Therefore, the invention establishes the provincial power transmission model, and the model models the power transmission through the extra-high voltage transmission line in the provincial area, thereby fully simulating the actual utilization condition of the extra-high voltage transmission line.
As shown in fig. 1, the provincial level collaborative multi-type electrolytic hydrogen production system considering electric energy transmission comprises a photovoltaic cell, a wind turbine, a hydropower station, a multi-type electrolytic tank, a compressor, a hydrogen storage tank, a storage battery and an extra-high voltage transmission line, wherein the photovoltaic cell, the wind turbine and the hydropower station generate electric energy, the multi-type electrolytic tank converts the electric energy into hydrogen energy, the compressor compresses the converted hydrogen energy and then stores the hydrogen energy by the hydrogen storage tank, the residual electric energy is stored by the storage battery and is used for real-time electric power balance, and the extra-high voltage transmission line is used for provincial electric energy transmission to realize surplus electric energy consumption.
As shown in fig. 2, a provincial level collaborative multi-type electrolytic hydrogen production method considering electric energy transmission specifically includes the following steps:
(1) Establishing a provincial power transmission model;
the provincial power transmission power constraint is:
wherein ,for the transmission power of the first extra-high voltage transmission line in the s-th region at time t,/for the transmission power of the first extra-high voltage transmission line in the s-th region at time t>The maximum transmission power upper limit of the first extra-high voltage transmission line in the s-th region.
The provincial power transmission power utilization hours constraint is:
wherein ,Tmax The end time is scheduled for the system,the number of hours of use remains for the first extra-high voltage transmission line in the s-th region (excluding the number of hours that the extra-high voltage transmission line has been used).
(2) Establishing a multi-type electrolytic cell model;
the power characteristics and the climbing characteristics of the alkaline water electrolytic cell (awe) are as follows:
wherein , and />Input electric power for the s-th region at time t and t-1 time awe, < >>Capacity for allocation of awe for the s-th region,/->The operating state of the corresponding type of electrolytic tank at the t moment awe in the s-th region is that the corresponding type of electrolytic tank operates, and the value of the operating state of the corresponding type of electrolytic tank is that the corresponding type of electrolytic tank does not operate, wherein the value of the operating state is that the corresponding type of electrolytic tank does not operate;
the power characteristics and climbing characteristics of the proton exchange membrane electrolyzer (pem) are as follows:
wherein , and />For the s-th region at time t and t-1Input electric power of carving PEM, +.>Configuration capacity for pep of the s-th region, < > for>For the operating state of the s-th region at the time of (tem), the value of 1 indicates that the corresponding type of electrolytic cell is operated, and the value of 0 indicates that the corresponding type of electrolytic cell is not operated;
the power characteristics and the climbing characteristics of the high-temperature solid oxide electrolytic cell (soe) are as follows:
wherein , and />Input electric power for the s-th region at time t and t-1 time soe, < >>Capacity for allocation of soe for the s-th region,/->The operating state of the s-th region at t moment soe is that the corresponding type of electrolytic tank operates, and the value of 1 is that the corresponding type of electrolytic tank does not operate.
(3) Establishing a provincial collaborative supply chain model;
provincial cooperative supply chain system electric power balance:
wherein , and />Output of photovoltaic cells (pv), wind turbines (wt) and hydropower stations (hg) in the s-th region at time t, respectively, +.>For the output of the kth thermal generator set (tg) in the s-th region at time t,/> and />Charging and discharging power of accumulator energy storage at t time in s-th area respectively,/for>For the net electrical load of the s-th region at time t (without taking into account the electrical load under the power transmission between provinces),>for the input electric power of the compressor at time t in the s-th region, it should be noted that, for the transmission side, +.>The negative sign should be taken to indicate the output of electric energy, for the power receiver, < ->A positive sign should be taken to represent the electrical energy input;
provincial co-supply chain system standby power constraint:
wherein , and />The unit output of the photovoltaic cells and the wind turbines at time t in the s-th region, respectively,> and />Newly configured and configured photovoltaic cell capacity for the s-th region, respectively, < >> and />Newly configured and configured wind turbine capacity for the s-th region, respectively, < >>For the online capacity of the kth thermal generator set in the s-th region at time t, +.> and />The storage battery energy storage standby power and the hydropower station standby power at the time t in the s-th region are respectively;
provincial collaborative supply chain system new energy generating capacity constraint:
wherein, beta is the lowest duty ratio of renewable energy power generation;
provincial collaborative supply chain system device capacity constraints:
wherein , and />The configuration capacities of photovoltaic cells pv, wind turbines wt, alkaline water electrolyzer awe, proton exchange membrane electrolyzer pems, high temperature solid oxide electrolyzer soe, compressor (hc), hydrogen storage tank (hs), battery charging and discharging (eps) and battery storage (ees) in the s-th region, respectively;
provincial cooperative supply chain wind-light equipment operation constraint:
provincial collaborative supply chain hydropower station operation constraints:
wherein ,existing installed capacity of hydropower station for the s-th region,/->Annual hours of use for the radial hydropower station in the s-th region;
provincial collaborative supply chain thermal generator set operation constraint:
wherein , and />The starting capacity and the stopping capacity of the kth thermal generator set in the s-th region at the time T are respectively, T su,k and Tsd,k Starting time and stopping time of kth thermal generator set, respectively, < >>For the existing installed capacity of the thermal generator set in the s-th region,/-> and />Respectively the lower limit and the upper limit, delta of the output power proportion of the kth thermal generator set rp,k The ramp rate of the kth thermal generator set;
provincial collaborative supply chain storage battery energy storage operation constraint:
wherein , and />Storage capacity, eta of storage battery at time t and time t-1 in the s-th region respectively es+ and ηes- Respectively, charge and discharge efficiency of the storage battery, +.> and />The storage capacities of the storage batteries in the s-th area at the scheduling starting moment and the scheduling ending moment are respectively;
provincial co-feed chain compressor operation constraints:
wherein ,inputting hydrogen flow, eta for the compressor at t time in the s-th region awe 、η pem and ηsoe Conversion efficiencies of awe, pem and soe are respectively, lhv is the lower heating value of hydrogen combustion, and ω is the unit power consumption of the compressor;
provincial co-supply chain hydrogen storage tank operating constraints:
wherein ,inputting hydrogen flow for hydrogen storage tank at t time in the s-th region, < >>For the hydrogen load of the s-th region at time t, sigma hc The loss rate of hydrogen filling and discharging for the hydrogen storage tank is +.> and />The storage capacity of the hydrogen storage tank at the time t and the time t-1 in the s-th area respectively,/-> and />The storage capacity of the hydrogen storage tank at the scheduling starting time and the scheduling ending time in the s-th region respectively;
provincial collaborative supply chain hydrogen load constraints:
wherein ,annual hydrogen demand for the s-th region.
(4) And establishing a provincial cooperative multi-type electrolytic hydrogen production model considering electric energy transmission.
The objective function of the provincial level cooperative multi-type electrolytic hydrogen production model considering electric energy transmission is as follows:
wherein COST is the total COST of the system in provincial collaborative regions, C inv,s 、C om,s and Cop,s The system annual investment cost, the annual fixed operation and maintenance cost and the annual variable operation and maintenance cost of the s-th region are respectively,for annual investment costs of the ith plant, i.e and />Representing the annual investment costs of pv, wt, awe, pem, soe, hc, hs, eps and ees, respectively; />For annual fixed operating costs of the ith equipment, i.e and />Representing the annual fixed operating costs of pv, wt, awe, pem, soe, hc, hs, eps and ees, respectively; />Represents the annual fixed operating maintenance cost of the kth thermal generator set,/->Represents the annual fixed operation and maintenance cost of hydropower +.> and />Represents the annual running cost and unit starting cost of the kth thermal generator set respectively, +.>Representing the annual running and maintenance costs of hydropower.
Capital recovery coefficient for the ith plant is κ i I.e.κ pv 、κ wt 、κ awe 、κ pem 、κ soe 、κ hc 、κ hs 、κ eps and κees The capital recovery coefficients, denoted pv, wt, awe, pem, soe, hc, hs, eps and ees respectively, are calculated as follows:
wherein r is the discount rate, N i Is the lifetime of the corresponding i-th device.
The provincial cooperative multi-type electrolytic hydrogen production method considering electric energy transmission comprises the steps of establishing a provincial electric energy transmission model, modeling electric energy transmission through an extra-high voltage transmission line in a provincial area, fully simulating real utilization conditions of the extra-high voltage transmission line, and establishing a multi-type electrolytic tank model considering power characteristics and climbing characteristics according to the difference of the working characteristics of different electrolytic tanks, so that real working states of different electrolytic tanks are effectively simulated. Modeling is conducted on the rest of the models, such as a fan, a photovoltaic device, a hydropower device, a compressor, a hydrogen storage tank, energy storage equipment and the like, a provincial collaborative supply chain model is built, finally, a provincial collaborative multi-type electrolytic hydrogen production system considering electric energy transmission is built with the minimum total operation cost of the system as a target, and provincial collaborative is achieved to reduce the overall hydrogen production cost. The result shows that the method effectively simulates the actual operation conditions of provincial power transmission and multi-type electrolytic tanks and realizes provincial cooperation so as to reduce the overall hydrogen production cost.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (8)
1. The provincial level cooperative multi-type electrolytic hydrogen production method considering electric energy transmission is characterized by comprising the following steps of:
modeling electric energy transmission through an extra-high voltage transmission line in a provincial area, simulating the actual utilization condition of the extra-high voltage transmission line, and establishing a provincial electric energy transmission model;
aiming at the difference of the working characteristics of different types of electrolytic tanks, a multi-type electrolytic tank model considering the power characteristic and the climbing characteristic is established, the real working states of different electrolytic tanks are simulated, and the multi-type electrolytic tank model is established;
modeling aiming at a wind turbine, a photovoltaic cell, hydropower, a compressor, a hydrogen storage tank, a generator and energy storage equipment, and establishing a provincial collaborative supply chain model;
and establishing a provincial collaborative multi-type electrolytic hydrogen production model taking the minimum total operation cost of the system as a target, wherein the provincial collaborative multi-type electrolytic hydrogen production model is considered for electric energy transmission.
2. The provincial collaborative multi-type electrolytic hydrogen production method considering electric energy transmission according to claim 1, wherein the provincial electric energy transmission model building method comprises:
the provincial power transmission power is constrained and the provincial power transmission power is constrained by the number of hours of utilization.
3. The provincial collaborative multi-type electrolytic hydrogen production method considering electric energy transmission according to claim 1, wherein the modeling of power characteristics and climbing characteristics of multi-type electrolytic tanks comprises:
the power characteristics and the climbing characteristics of the alkaline water electrolyzer, the power characteristics and the climbing characteristics of the proton exchange membrane electrolyzer, and the power characteristics and the climbing characteristics of the high-temperature solid oxide electrolyzer are determined.
4. The provincial collaborative multi-type electrolytic hydrogen production method considering electric power transmission according to claim 1, wherein the provincial collaborative supply chain model building method comprises:
under the condition of electric power balance of the provincial cooperative supply chain system, the standby power of the provincial cooperative supply chain system, the new energy generating capacity of the provincial cooperative supply chain system and the equipment capacity of the provincial cooperative supply chain system are constrained.
5. The method for producing hydrogen by electrolysis and multiple types of coordinated provincial and provincial power supply system according to claim 4, wherein the power balance of the provincial and coordinated power supply system is as follows
wherein , and />Output of photovoltaic cells (pv), wind turbines (wt) and hydropower stations (hg) in the s-th region at time t, respectively, +.>The output power of the kth thermal generator set (tg) in the s-th region at the t moment, and />Charging and discharging power of accumulator energy storage at t time in s-th area respectively,/for>For the net electrical load of the s-th region at time t (without taking into account the electrical load under the power transmission between provinces),>the input electric power of the compressor at the time t in the s-th region.
6. A provincial collaborative multi-type electrolytic hydrogen production method considering power transmission according to claim 5, wherein the method comprisesThe negative sign should be taken to indicate the output of electric energy, for the power receiver, < ->A positive sign should be taken to indicate the power input.
7. The provincial collaborative multi-type electrolytic hydrogen production method considering electric power transmission according to claim 4, wherein the establishing method of the provincial collaborative supply chain model further comprises:
and restraining the operation of the wind-solar equipment of the provincial cooperative supply chain, the operation of the hydropower station of the provincial cooperative supply chain, the operation of the thermal generator set of the provincial cooperative supply chain, the energy storage operation of the storage battery of the provincial cooperative supply chain, the operation of the compressor of the provincial cooperative supply chain, the operation of the hydrogen storage tank of the provincial cooperative supply chain and the hydrogen load of the provincial cooperative supply chain.
8. The method for producing hydrogen by using provincial cooperation multi-type electrolysis considering electric energy transmission according to claim 1, wherein the method for establishing the provincial cooperation multi-type electrolysis hydrogen production model considering electric energy transmission comprises the following steps:
establishing an objective function of a provincial level cooperative multi-type electrolytic hydrogen production model considering electric energy transmission, wherein the objective function is as follows:
wherein COST is the total COST of the system in provincial collaborative regions, C inv,s 、C om,s and Cop,s The system annual investment cost, the annual fixed operation and maintenance cost and the annual variable operation and maintenance cost of the s-th region are respectively.
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