CN116131292A - Power grid frequency modulation method and system based on cooperative coordination of electrolytic aluminum and polysilicon - Google Patents
Power grid frequency modulation method and system based on cooperative coordination of electrolytic aluminum and polysilicon Download PDFInfo
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 89
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 85
- 229920005591 polysilicon Polymers 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
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- 238000003860 storage Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 7
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
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- 150000003839 salts Chemical class 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910001610 cryolite Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
- C30B28/12—Production of homogeneous polycrystalline material with defined structure directly from the gas state
- C30B28/14—Production of homogeneous polycrystalline material with defined structure directly from the gas state by chemical reaction of reactive gases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/023—Preparation by reduction of silica or free silica-containing material
- C01B33/025—Preparation by reduction of silica or free silica-containing material with carbon or a solid carbonaceous material, i.e. carbo-thermal process
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
- C01B33/03—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/16—Electric current supply devices, e.g. bus bars
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- 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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
Abstract
The invention discloses a power grid frequency modulation method and a system based on cooperative coordination of electrolytic aluminum and polysilicon, belonging to the field of power system dispatching and power grid frequency modulation, wherein the method comprises the following steps: obtaining an active power shortage from a grid dispatching place; calculating the active power adjustable capacity of the electrolytic aluminum load; calculating the active power adjustable capacity of the polysilicon; drawing a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the regulated power, calculating a derivative value of a curve when the electrolytic aluminum regulates a power, calculating a derivative value of a curve when the polycrystalline silicon regulates a complementary power, enabling the derivative values of the electrolytic aluminum and the polycrystalline silicon to be equal, solving the regulated power required by the electrolytic aluminum and the polycrystalline silicon, and compensating the shortage of the active power by cooperative regulation, wherein the regulated power required by the electrolytic aluminum and the polycrystalline silicon is respectively within the ranges of the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon.
Description
Technical Field
The invention belongs to the field of power system dispatching and power grid frequency modulation, and particularly relates to a power grid frequency modulation method and system based on cooperative coordination of electrolytic aluminum and polysilicon.
Background
In recent years, with the gradual increase of the installed capacity of renewable energy sources in China, the problem of renewable energy source digestion becomes a bottleneck for restricting the development of industry, meanwhile, the access of large-scale renewable energy sources also causes huge pressure on the operation and control of an electric power system, and the problems of peak regulation, frequency modulation and frequency stability of a power grid are more and more serious. The high-energy-consumption industrial load, such as electrolytic aluminum, polysilicon and the like, has the characteristic of heat energy storage, the electric power of the high-energy-consumption industrial load can be continuously regulated in a large range, and the regulation in a short time can not cause serious influence on industrial production. Therefore, power regulation of high-energy-consumption industrial loads has great significance for improving the flexibility of an electric power system and promoting the consumption of renewable energy sources. However, for a single high-energy-consumption industrial load, the participation frequency modulation capability is limited, and if two or more high-energy-consumption industries can be matched with the cooperative participation frequency modulation, and the economic benefit is maximized, the method has great significance for high-energy-consumption load enterprises and power grid companies.
Disclosure of Invention
The invention aims to provide a power grid frequency modulation method and a system based on cooperative coordination of electrolytic aluminum and polysilicon, which can obtain respective required adjustment power when the electrolytic aluminum and the polysilicon participate in frequency modulation cooperatively, and an electrolytic aluminum plant and a polysilicon plant carry out power grid frequency modulation according to the required adjustment power, so that the industrial smelting economic benefit of the electrolytic aluminum and the polysilicon can be maximized.
According to a first aspect of an embodiment of the present invention, there is provided a grid frequency modulation method based on cooperative coordination of electrolytic aluminum and polysilicon, including: obtaining an active power shortage from a grid dispatching place; calculating the active power adjustable capacity of the electrolytic aluminum load; calculating the active power adjustable capacity of the polysilicon; drawing a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the regulated power, calculating a derivative value of a curve when the electrolytic aluminum regulates a power, calculating a derivative value of a curve when the polycrystalline silicon regulates a complementary power, enabling the derivative values of the electrolytic aluminum and the polycrystalline silicon to be equal, solving the regulated power required by the electrolytic aluminum and the polycrystalline silicon, and compensating the shortage of the active power by cooperative regulation, wherein the regulated power required by the electrolytic aluminum and the polycrystalline silicon is respectively within the ranges of the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon.
According to a second aspect of the embodiment of the present invention, there is provided a grid frequency modulation system based on cooperative coordination of electrolytic aluminum and polysilicon, including: an active power deficiency acquisition module configured to obtain an active power deficiency from a grid dispatch; a first active power adjustable capacity calculation module configured to calculate an electrolytic aluminum load active power adjustable capacity; a second active power adjustable capacity calculation module configured to calculate a polysilicon active power adjustable capacity; the required adjustment power calculation module is configured to draw a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the adjusted power, calculate a derivative value of a curve when the electrolytic aluminum adjusts a power, calculate a derivative value of a curve when the polycrystalline silicon adjusts a complementary power, make the derivative values of the curve and the derivative value equal, solve the required adjustment power of the electrolytic aluminum and the polycrystalline silicon, and compensate the shortage of the active power by the cooperative adjustment, wherein the required adjustment power of the electrolytic aluminum and the polycrystalline silicon is respectively within the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon.
According to a third aspect of an embodiment of the present invention, there is provided a computer including: a processor; a memory including one or more computer program modules; wherein the one or more computer program modules are stored in the memory and configured to be executed by the processor, the one or more computer program modules comprising instructions for implementing the electrolytic aluminum and polysilicon co-ordination based grid frequency modulation method.
According to a fourth aspect of the embodiment of the present invention, a computer readable storage medium is provided for storing non-transitory computer readable instructions, which when executed by a computer, enable the grid frequency modulation method based on cooperative coordination of electrolytic aluminum and polysilicon.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following description will briefly explain the drawings of the embodiments.
FIG. 1 is a graph of cost versus regulated power for electrolytic aluminum and polysilicon in accordance with one embodiment of the present invention.
FIG. 2 is a flow chart of the calculation of the regulated power required for the electrolysis of aluminum and polysilicon in accordance with one embodiment of the present invention.
Detailed Description
The cryolite-alumina fused salt electrolysis method is widely adopted in the modern electrolytic aluminum industry production, and the main equipment is an aluminum electrolysis cell. In cryolite-alumina fused salt electrolysis, fused salt cryolite is taken as a solvent, alumina is taken as a solute to be dissolved in the fused salt cryolite-alumina fused salt electrolysis, and carbon materials are taken as anode and cathode. And D, hundreds of kiloamperes of direct current is introduced to generate electrochemical reaction between the two electrodes, the product on the cathode is electrolytic aluminum liquid, and the product on the anode is carbon dioxide and other gases. The direct current is supplied to melt cryolite into a molten state by utilizing the heat energy of the cryolite, and the constant electrolysis temperature of the cryolite is maintained, and the electrochemical reaction is realized.
The main equipment required for industrial smelting of polysilicon is an ore-smelting furnace and a reduction furnace. The main raw material of the polysilicon is industrial silicon which is obtained by adopting a submerged arc operation continuous production mode in an ore heating furnace and reducing silicon ore and carbon, and the industrial silicon is converted into SiHCl through a series of chemical reactions 3 Then utilize SiHCl 3 With high purity H 2 And carrying out chemical vapor deposition reaction in the reducing furnace to generate polysilicon.
In one embodiment, a method for cooperatively participating in power grid frequency modulation based on cooperative coordination of electrolytic aluminum and polysilicon is provided, so that the high-energy-consumption industry of electrolytic aluminum and polysilicon cooperatively participates in frequency modulation, and the industrial smelting economic benefit of electrolytic aluminum and polysilicon is maximized. The method will be described in detail below.
And step 1, obtaining the active power deficiency delta P from a power grid dispatching place.
And 2, calculating the active power adjustable capacity of the electrolytic aluminum load.
Step 2.1, realizing the adjustment of the active power of the electrolytic aluminum load based on a saturable reactor adjusting method, and calculating the active power of the electrolytic aluminum load, wherein the active power is represented by the following formula:
wherein:P Load the active power of the electrolytic aluminum load,V B in the form of a direct-current side voltage,I d in the form of a direct-side current,Efor the counter electromotive force of the electrolytic cell,Ris the resistance of the electrolytic cell.
And 2.2, changing the alternating current magnetic permeability of the ferromagnetic material of the saturation resistor along with the change of the direct current magnetic field. When the current of the control loop is regulated, the initial magnetic density value of the iron core is changed, so that the commutation of the rectifying circuit is delayed, the time for delaying the commutation can be represented by a saturation angle, and the relationship between the saturation angle and the control current is as follows:
in the method, in the process of the invention,αis the saturation angle;ωis the grid frequency;N g the number of turns of the working winding;N c to control the number of turns of the winding;A t is the sectional area of the iron core;B b is saturated magnetic density;uis magnetic permeability;I c to control the current;E p is the effective value of the grid voltage.
DC output voltageU dc Relationship with saturation angle:
the combination of the two formulas can be obtained:
in the method, in the process of the invention,U dc for the dc output voltage to be a high voltage,E b as an equivalent potential to be used,K 2 in order to transfer the resistance of the resistor,R L is the equivalent resistance of the electrolytic cell.
So we can adjust the control currentI c The output current is regulated, thereby regulating the active power.
Step 2.3, let the voltage drop of the saturation reactor beV s Low-side ac voltageV L-L ：
In the method, in the process of the invention,kin order to achieve the transformation ratio of the transformer,V AH is the high-side voltage of the alternating current bus.
Low-side ac voltageV L-L With the cell DC bus voltageV B The relationship of (2) can be expressed as:
from the above two formulas, the direct side current can be expressed as:
in the method, in the process of the invention,V AH is the high-side voltage of the alternating current bus,Rfor the electric resistance of the electrolytic cell,kin order to achieve the transformation ratio of the transformer,I d is a direct current.
The active power of the electrolytic aluminum can be expressed as:
and 2.4, calculating the active power adjustable range of the electrolytic aluminum load. The equivalent inductance of the saturation reactor has limited change, the maximum voltage drop of a three-phase full-bridge rectifying circuit is 70V under the common condition, and the saturation reactor usually operates at 20-V-40V, soV s The range of (2) is:
the maximum active power P can be determined in a limited range Loadmax And minimum active power P Loadmin The active power adjustment capacity of the electrolytic aluminum load is: />
。
And step 3, calculating the active power adjustable capacity of the polysilicon.
Step 3.1: calculating the total load power of the polysilicon, wherein the load power satisfies the following electrical relationship:
in the method, in the process of the invention,P PCS the total power is exchanged for the polysilicon load,V p is a single-phase voltage of the polysilicon load,R PCS is a polysilicon rod single-phase resistor.
Step 3.2: calculating a polycrystalline silicon rod at deltatProduction over timeThe process energy conversion relation is as follows:
Step 3.3, calculating the temperature range of the surface of the silicon rod, and regarding the surface temperature of the silicon rodT x The control range is as follows:
when the temperature is 1000 ℃ or lessT x Can ensure production at the temperature of less than or equal to 1100℃, whenT x ＝T xN When the temperature is 1080 ℃, the optimum temperature is%T xN Indicating the optimum temperature); in participating in regulation, the polysilicon load typically participates in regulating power down, then there are:T xmin =1000℃，T xmax =1080℃
step 3.4: and calculating the active power adjustable capacity of the polysilicon.
The flow rate of the cooling water is generally adjusted, and if the flow rate adjustment rate of the cooling water is α, there are:
α min ≤α≤α max wherein alpha is min ＝90％，α max =100%. At rated operation, α=100%; from the formulas listed before:
the adjustment range of the polysilicon load power can be determined as follows:
the active power tunable capacity of the polysilicon is:
step 4: and calculating the active power required to be regulated respectively when the electrolytic aluminum and the polycrystalline silicon are cooperatively frequency-modulated according to the economic maximization as a distribution criterion.
The electrolytic aluminum load is positively correlated with the active power and the cost of the polysilicon regulation, and the compensation obtained by participating in auxiliary frequency modulation is certain because the active power needs to be regulated to be certain, and the total economic benefit is required to be maximized, so that the cost of the electrolytic aluminum load and the cost of the polysilicon regulation needs to be minimized. As shown in FIG. 1, the cost of electrolytic aluminum is F 1 The cost of polysilicon is F 2 Assuming that the relation between the cost and the regulated power is approximately shown as curves 1 and 2, OO ' represents the total active power required to be regulated, OA and OA ' represent the active power required to be regulated by electrolytic aluminum, O ' A, O ' A ' represents the active power required to be regulated by polysilicon, and a perpendicular line passing through A intersects with the curves at B 1 And B 2 To minimize the total cost, B is required to 1 B 2 The value of (2) is the smallest. As can be seen from the micro-increment rule of the power system and the like, the point B 1 And B 2 B when the tangential slopes of (B) are the same 1 B 2 The criteria thus allows to allocate both the amounts of active power to be regulated while guaranteeing a minimum overall cost and a greater capacity for the regulation of the frequency compared to the capacity of a single high-energy industrial load.
As in fig. 2, the algorithm for solving the adjustment power required for electrolytic aluminum and polysilicon is: drawing a graph of cost of electrolytic aluminum and polysilicon and adjusted power; calculating the derivative value of the curve when the electrolytic aluminum regulates a certain power; calculating the derivative value of the curve when the polycrystalline silicon adjusts the complementary power; and solving the power required by the electrolytic aluminum and the polysilicon by leading the two values to be within the required adjustable capacity, and compensating the shortage of the active power by cooperative adjustment. The electric network frequency modulation is carried out on the required adjustment power calculated by the electrolytic aluminum and polysilicon factories according to the invention.
In an embodiment, there is also provided a grid frequency modulation system based on cooperative coordination of electrolytic aluminum and polysilicon, including: the device comprises an active power deficiency acquisition module, a first active power adjustable capacity calculation module, a second active power adjustable capacity calculation module and a required adjustment power calculation module.
The active power deficiency acquisition module is configured to obtain an active power deficiency from a grid dispatch. The first active power adjustable capacity calculation module is configured to calculate an electrolytic aluminum load active power adjustable capacity. The second active power tunable capacity calculation module is configured to calculate a polysilicon active power tunable capacity. The required adjustment power calculation module is configured to draw a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the adjusted power, calculate a derivative value of a curve when the electrolytic aluminum adjusts a power, calculate a derivative value of a curve when the polycrystalline silicon adjusts a complementary power, make the derivative values of the two equal, and solve the required adjustment power of the electrolytic aluminum and the polycrystalline silicon, thereby compensating for the shortage of the active power by cooperative adjustment, wherein the required adjustment power of the electrolytic aluminum and the polycrystalline silicon is respectively within the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon. For a more detailed implementation method of each module of the system, refer to steps 1 to 4 of the above method embodiment.
In one embodiment, a computer is also provided. The computer includes a processor and a memory. The memory is used to store non-transitory computer-readable instructions (e.g., one or more computer program modules). The processor is configured to execute non-transitory computer readable instructions that when executed by the processor perform one or more of the steps of a method for grid frequency modulation based on co-ordination of electrolytic aluminum and polysilicon as described above. The memory and processor may be interconnected by a bus system and/or other forms of connection mechanisms.
For example, the processor may be a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), or other form of processing unit having data processing capabilities and/or program execution capabilities. For example, the Central Processing Unit (CPU) may be an X86 or ARM architecture, or the like. The processor may be a general purpose processor or a special purpose processor, and may control other components in the computer to perform the desired functions.
For example, the memory may comprise any combination of one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. Volatile memory can include, for example, random Access Memory (RAM) and/or cache memory (cache) and the like. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, erasable programmable read-only memory (EPROM), compact disc read-only memory (CD-ROM), USB memory, flash memory, and the like. One or more computer program modules may be stored on the computer readable storage medium and executed by the processor to perform various functions of the computer.
In some embodiments, a computer readable storage medium is also provided for storing non-transitory computer readable instructions that when executed by a computer can implement one or more of the steps of a method for grid frequency modulation based on co-ordination of electrolytic aluminum and polysilicon. The method and the system for participating in power grid frequency modulation based on cooperative coordination of electrolytic aluminum and polysilicon are realized in a software mode and can be stored in a computer readable storage medium when sold or used as independent products. The relevant description of the storage medium may refer to the corresponding description of the memory in the computer, and will not be repeated here.
Claims (4)
1. The utility model provides a grid frequency modulation method based on electrolytic aluminum and polycrystalline silicon cooperation, which is characterized by comprising the following steps:
obtaining an active power shortage from a grid dispatching place;
calculating the active power adjustable capacity of the electrolytic aluminum load;
calculating the active power adjustable capacity of the polysilicon;
drawing a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the regulated power, calculating a derivative value of a curve when the electrolytic aluminum regulates a power, calculating a derivative value of a curve when the polycrystalline silicon regulates a complementary power, enabling the derivative values of the electrolytic aluminum and the polycrystalline silicon to be equal, solving the regulated power required by the electrolytic aluminum and the polycrystalline silicon, and compensating the shortage of the active power by cooperative regulation, wherein the regulated power required by the electrolytic aluminum and the polycrystalline silicon is respectively within the ranges of the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon.
2. Electric wire netting frequency modulation system based on electrolytic aluminum and polycrystalline silicon cooperate, characterized by comprising:
an active power deficiency acquisition module configured to obtain an active power deficiency from a grid dispatch;
a first active power adjustable capacity calculation module configured to calculate an electrolytic aluminum load active power adjustable capacity;
a second active power adjustable capacity calculation module configured to calculate a polysilicon active power adjustable capacity;
the required adjustment power calculation module is configured to draw a graph of the cost of the electrolytic aluminum and the polycrystalline silicon and the adjusted power, calculate a derivative value of a curve when the electrolytic aluminum adjusts a power, calculate a derivative value of a curve when the polycrystalline silicon adjusts a complementary power, make the derivative values of the curve and the derivative value equal, solve the required adjustment power of the electrolytic aluminum and the polycrystalline silicon, and compensate the shortage of the active power by the cooperative adjustment, wherein the required adjustment power of the electrolytic aluminum and the polycrystalline silicon is respectively within the active power adjustable capacity of the electrolytic aluminum load and the active power adjustable capacity of the polycrystalline silicon.
3. A computer, comprising:
a processor;
a memory including one or more computer program modules;
wherein the one or more computer program modules are stored in the memory and configured to be executed by the processor, the one or more computer program modules comprising instructions for implementing the electrolytic aluminum and polysilicon co-ordination based grid frequency modulation method of claim 1.
4. A computer readable storage medium storing non-transitory computer readable instructions, wherein the non-transitory computer readable instructions when executed by a computer enable the grid frequency modulation method based on co-ordination of electrolytic aluminium and polysilicon as claimed in claim 1.
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| CN116706943A (en) * | 2023-08-07 | 2023-09-05 | 武汉大学 | Multi-electrolytic aluminum load coordination control method based on segmented difference adjustment coefficient |
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