CN111612201A - A method and system for determining the installed capacity of an integrated energy system - Google Patents

Abstract

The invention provides a method and system for determining the installed capacity of an integrated energy system, including: determining two types of parameters in the input-output relationship based on a pre-built input-output relationship and construction requirements of the integrated energy system, and obtaining the remaining The relationship between a class of parameters and the system input-output ratio; based on the relationship between the remaining class of parameters and the system input-output ratio, determine the installed capacity of each energy device in the integrated energy system; wherein the input-output relationship is determined by the integrated energy The demand of each energy product in the system and the mutual conversion efficiency between the various energy conversion equipment input are constructed, and the input-output relationship includes three types of parameters, namely energy price, equipment energy efficiency and system configuration, which can be analyzed according to the desired The key object is to determine some parameters, analyze the relationship between another part of the parameters and the system input-output ratio, and use it to design the installed capacity of the integrated energy system.

Description

A method and system for determining the installed capacity of an integrated energy system

technical field

The invention relates to an integrated energy system, in particular to a method and system for determining the installed capacity of an integrated energy system.

Background technique

The increasingly prominent energy crisis and environmental problems make all countries in the world actively invest in the development and utilization of new renewable energy. The demand-side integrated energy system considers the on-site utilization of local renewable energy and the mixed utilization of renewable energy and fossil energy, so it has received more and more attention. The number of district energy projects in the form of combined heat and power combined with heat and power, supplemented by renewable energy, continues to increase, and community secondary energy markets such as energy cooperatives where neighbors help each other are taking shape. The demand-side comprehensive energy service market , contains a variety of energy production and consumption technologies, corresponding to different equipment and systems.

However, most of the existing comprehensive energy system optimization modeling research takes economy as the goal (or one of the goals). Although this method plays an important role in supporting the design of integrated energy systems, the method of numerical optimization model of components can only calculate the optimal design in one situation, and cannot explain the relationship between economy and system configuration parameters, such as when a certain When the factors change, it needs to be re-modeled and calculated, and the efficiency is low, and it is not convenient to use when determining the preliminary plan. Therefore, how to efficiently determine the installed capacity of the integrated energy system needs to be further solved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defect of low efficiency when configuring the parameters of the integrated energy system in the prior art, and propose a scheduling method for the integrated energy system, which provides a solution for the screening and determination of the integrated energy system scheme. set of convenient methods.

The technical scheme provided by the present invention is: a method for determining the installed capacity of an integrated energy system, comprising:

Based on the pre-built input-output relationship and the construction requirements of the integrated energy system, two types of parameters in the input-output relationship are determined, and the relationship between the remaining one type of parameters and the system input-output ratio is obtained;

Determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining class of parameters and the system input-output ratio;

The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the input various energy conversion equipment, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration.

Preferably, the construction of the input-output relationship includes:

The input-output relationship is constructed based on the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input;

Perform dimensionless processing on the input-output relational expression to obtain a dimensionless input-output relational expression.

Preferably, the mutual conversion efficiency between the demand of each energy product in the integrated energy system and the input various energy conversion equipment, including:

Obtain various input energy resources and output energy products;

Draw the conversion process of inputting various energy resources to produce various energy products through energy conversion equipment;

Based on the conversion process and the performance parameters of the energy conversion equipment in the conversion process, determine the mutual conversion efficiency between the demand for each energy product in the integrated energy system and the input multiple energy conversion equipment;

Wherein, the energy product includes: heat demand, cooling demand and fixed power demand, and the fixed power demand includes electrical loads of electronic equipment, electric machinery and elevators;

The energy includes: electricity and fuel.

Preferably, the input-output relationship is as follows:

In the formula, R _total : the input-output return of the entire integrated energy system within the set running time; D _c : the cooling demand during the set running time; P _c : the average price of cooling energy; D _h : the set running time heat demand in time; _Ph : average price of heat energy; _De,0 : fixed electricity demand during set operation time; _Pe : average price of electricity; F _in : integrated energy system in set operation The amount of fuel consumed during the time; P _f : the average price of fuel; E _in : the electricity consumed by the integrated energy system during the set operating time.

Preferably, the dimensionless relationship between the input and output is as follows:

In the formula, y: the proportion of the user's cold product; z: the proportion of the user's hot product; A: the first intermediate parameter; x: the ratio of the heat produced by the boiler to the total heat demand of the user; B: the second intermediate parameter;

Among them: the first intermediate parameter A, calculated as follows:

In the formula: η _boil : the heat production efficiency of the boiler; η _CHP,h : the heat production efficiency of the cogeneration equipment; COP _c : the efficiency of thermal cooling; v: the difference between the heat produced by the electric heating equipment and the total heat demand of the user ratio; t: the ratio of the cooling capacity produced by the electric refrigeration equipment to the total cooling capacity demand of the user;

The first intermediate parameter B is calculated as follows:

In the formula: COP _h : the efficiency of electric heating; EER _c : the efficiency of electric cooling; η _CHP,e : the electricity production efficiency of cogeneration equipment.

Preferably, the two types of parameters in the input-output relationship are determined, and the relationship between the remaining one type of parameters and the system input-output ratio is obtained, including:

Determine two types of parameters in the input-output relationship according to the construction requirements of the integrated energy system;

Partial derivative analysis is carried out with the remaining class of parameters as independent variables, and the relationship between the remaining class of parameters and the system input-output ratio is determined.

Preferably, the partial derivative analysis is performed using the remaining class of parameters as independent variables to determine the relationship between the remaining class of parameters and the input-output ratio of the system, further comprising:

Based on the relationship between the remaining class of parameters and the input-output ratio of the system, a graph of the relationship between the remaining class of parameters and the system input-output ratio is drawn.

Preferably, the determining two types of parameters in the input-output relationship, and obtaining the relationship between the remaining one type of parameters and the system input-output ratio, specifically includes:

When the system configuration variables and energy efficiency parameters are fixed, the relationship between energy price and input-output ratio is obtained as shown in the following formula:

Preferably, the system configuration includes: the ratio of the heat produced by the boiler to the total heat demand of the user, the ratio of the heat produced by the electric heating device to the total heat demand of the user, and the cooling capacity produced by the electric refrigeration device. The ratio to the total cooling demand of the user;

The energy price includes: the average price of cooling energy, the average price of heat energy, the average price of electricity and the average price of fuel;

The energy efficiency of the equipment includes: the efficiency of thermal cooling, the efficiency of electric heating, the efficiency of electric cooling, the power generation efficiency of cogeneration equipment, the heat generation efficiency of boilers, and the heat generation efficiency of cogeneration equipment.

Based on the same inventive concept, the present invention also provides a system for determining the installed capacity of an integrated energy system, including:

The first determination module is used to determine two types of parameters in the input-output relationship based on the pre-built input-output relationship and the construction requirements of the integrated energy system, and obtain the relationship between the remaining one type of parameters and the system input-output ratio;

The second determination module is configured to determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining one type of parameters and the system input-output ratio;

The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the input various energy conversion equipment, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration.

Preferably, the system further includes: a building module for building an input-output relationship;

The building blocks include:

Build a sub-module for constructing an input-output relationship based on the demand for each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input;

The processing sub-module is configured to perform dimensionless processing on the input-output relational expression to obtain a dimensionless input-output relational expression.

Compared with the prior art, the beneficial effects of the present invention are:

According to the technical solution provided by the present invention, two types of parameters in the input-output relationship are determined based on the pre-built input-output relationship and the construction requirements of the comprehensive energy system, and the relationship between the remaining one type of parameters and the system input-output ratio is obtained; Based on the relationship between the remaining class of parameters and the system input-output ratio, the installed capacity of each energy device in the integrated energy system is determined; wherein the input-output relationship is determined by the demand of each energy product in the integrated energy system and the various inputs The mutual conversion efficiency between energy conversion equipment is constructed, and the input-output relationship includes three types of parameters, namely energy price, equipment energy efficiency and system configuration. According to the key objects to be analyzed, some parameters can be determined, and another part of the parameters can be analyzed. The relationship with the input-output ratio of the system is used to design the configuration variables of each equipment in the integrated energy system, select the equipment performance parameters, and formulate various energy prices, and at the same time, it can efficiently determine the installed capacity of the integrated energy system.

The technical scheme provided by the present invention does not need to re-model and calculate when a certain factor changes, which improves the calculation efficiency and can be applied to the determination of the preliminary scheme.

The technical scheme provided by the present invention is based on the functional relationship between the input-output ratio of the integrated energy system and the relevant influencing factors, and obtains the change trend and change amount of the input-output ratio of the system when the influencing factors change through partial differential analysis, and then determines the integrated energy system. The optimal design parameters can simplify the optimization design workload and improve the design efficiency.

Description of drawings

1 is a flowchart of a method for determining the installed capacity of an integrated energy system according to the present invention;

2 is a schematic diagram of the energy flow of the integrated energy system of the present invention;

FIG. 3 is a schematic diagram showing the relationship between the energy price and the input-output ratio in the embodiment of the present invention.

Detailed ways

In order to better understand the present invention, the content of the present invention will be further described below with reference to the accompanying drawings and examples.

Example 1:

The emergence of integrated energy system dispatch is to improve the utilization level of clean energy. In the dispatch of integrated energy system, the most effective means to improve the utilization level of clean energy is to use the optimal economic benefit as a lever, and use the power system to put into production. Based on the balance, and taking into account the safe operation of the power system, a reasonable installed capacity is formulated, and an energy supply scheme aimed at maximizing the use of clean energy is realized.

As shown in Figure 1, the method for determining the installed capacity includes:

Step S1: Determine two types of parameters in the input-output relationship based on the pre-built input-output relationship and the construction requirements of the integrated energy system, and obtain the relationship between the remaining one type of parameters and the system input-output ratio;

Step S2: Determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining class of parameters and the system input-output ratio;

The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the input various energy conversion equipment, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration.

Among them, the construction of input-output relationship includes:

1. Drawing the energy flow diagram of the multi-energy complementary integrated energy system, including the following steps:

1) According to the preliminary design plan, identify the various types of energy resources available and the energy products produced;

2) As shown in Figure 2, draw an energy flow path diagram including various energy resources, energy conversion equipment and cold and thermal power products, where F _boil is the amount of fuel used for the boiler, and the unit is MJ; F _CHP is used for thermoelectricity. Co-production fuel quantity, unit MJ; η _boil , η _CHP,h are the heat production efficiency of boiler and CHP equipment respectively; η _CHP,e is the electricity generation efficiency of CHP equipment; B _fuel is the amount of local biomass energy resource utilization, unit MJ; _{E in} is the electricity consumed by the integrated energy system during the set operating time, in MJ; Se and We are the local solar and wind power generation _, respectively, in MJ; R _h is the local solar heating, in MJ; E is the total electricity demand, the unit is MJ; E _h , E _c , E ₀ are the electricity demand for heating, cooling and stationary power, respectively, and the unit is MJ; H _s , C _s , and E _s are the storage Heat, cold storage, and electricity storage, all in MJ; COP _h , COP _c , and EER _c are the efficiencies of electric heating, thermal cooling, and electric cooling, respectively; η _h,s , η _c,s , and η _e,s are respectively Efficiency of heat storage, cold storage and power storage system; fixed power demand refers to the power demand not used for air conditioning, cooling and heating, mainly refers to the electrical load of electronic equipment, electric machinery, elevators, etc.;

3) Combine the preliminary design plan and equipment performance parameters to determine the conversion efficiency of various energy conversion processes in each link of the system, such as heat pump COP, thermal efficiency of boiler or cogeneration unit, power generation efficiency η, refrigerator energy efficiency, washing EER and other equipment conversion Efficiency, and according to the configuration data of the capacity of various energy equipment in the design scheme, determine the energy products of each energy conversion process.

2. According to the energy resources and the price of cold, heating and power products, establish the input-output relationship between energy resources and energy products as shown in the following formula:

In the formula, R _total : the input-output return of the entire integrated energy system within the set running time; D _c : the cooling demand during the set running time; P _c : the average price of cooling energy; D _h : the set running time heat demand in time; _Ph : average price of heat energy; _De,0 : fixed electricity demand during set operation time; _Pe : average price of electricity; F _in : integrated energy system in set operation The amount of fuel such as gas and fuel oil consumed during the time, in MJ; P _f : the average price of fuel; E _in : the electricity consumed by the integrated energy system during the set operating time, in MJ; the unit of demand is MJ; the average The unit of price is Yuan/MJ.

3. The dimensionlessization of the input-output relationship of the integrated energy system, including:

make

Then the input-output relationship can be simplified as:

in

At this time, the input-output relationship of the integrated energy system is transformed into a dimensionless relationship that has nothing to do with the size of the system, and the system input-output is only related to the system configuration variables t, v, x and the performance of the energy conversion equipment COP _h , EER _c , η Equivalent energy efficiency parameters are related to parameters such as energy prices P _c , _Ph , P _e and P _f .

Among them, t is the ratio of the cooling capacity produced by the electric refrigeration equipment to the total cooling demand of the user; v is the ratio of the heat produced by the electric heating equipment to the total heat demand of the user; x is the heat produced by the boiler The ratio of heat to the total heat demand of the user.

Step S2: Based on the relationship between the remaining class of parameters and the system input-output ratio, determine the installed capacity of each energy device in the integrated energy system, including:

1. Calculate the relationship between the input-output ratio of the system and each parameter through partial derivative analysis; draw the relationship between each type of parameter and the system's input-output ratio based on the relationship between the input-output ratio and each parameter.

In this embodiment, the given system configuration and energy efficiency parameters are taken as an example, and the relationship between R _total and energy price can be obtained by calculating the partial derivative, as shown in the following formula:

When the energy efficiency of energy conversion equipment and the fixed system configuration scheme are fixed according to the equipment performance level, the relationship between various energy prices and system input and output can be obtained, that is, when two of the three categories of fixed energy price, equipment energy efficiency and system configuration parameters are fixed The relationship between the parameters of one category and the input-output ratio of the system can be obtained.

As shown in Figure 3, the relationship between system input and output and energy price is given when the system configuration and equipment energy efficiency are fixed. When the average price of cooling energy, the average price of heating energy, the average price of electricity and the average price of fuel When any one of the prices fluctuates, the impact on input and output, the abscissa ΔP refers to the average price of cooling energy, the average price of heat energy, the average price of electricity or the average price of gas. For example, when the average price P _c of cold energy rises by 15%, the input-output ratio R _total is between 1.9-2.

2. According to the relationship between each parameter variable and the input-output ratio of the system, determine the value of each parameter when the input-output ratio of the system is optimal, and the installed capacity of the system can be further determined by the parameter value.

In this embodiment, according to the relationship between the input-output ratio and energy prices, when various energy prices fluctuate on the basis of the benchmark price, the input-output ratio changes. According to Figure 3, it can be used to assist in determining the formulation of various energy prices in the system.

According to the example provided by this embodiment, some parameters can be determined according to the key objects to be analyzed, and the relationship between another part of the parameters and the system input-output ratio can be analyzed. The selection of performance parameters and the formulation of various energy prices are of great significance for simplifying the analysis and quickly determining the optimal preliminary design scheme.

Based on the functional relationship between the input-output ratio of the integrated energy system and relevant influencing factors, the present invention obtains the change trend and variation of the input-output ratio of the system when the influencing factors change through partial differential analysis, and then determines the comprehensive energy system when the economy is optimal. The optimal design parameters can simplify the optimization design workload and improve the design efficiency.

Example 2:

Based on the same inventive concept, the present invention also provides a system for determining the installed capacity of an integrated energy system, including:

The first determination module is used to determine two types of parameters in the input-output relationship based on the pre-built input-output relationship and the construction requirements of the integrated energy system, and obtain the relationship between the remaining one type of parameters and the system input-output ratio;

The second determination module is configured to determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining one type of parameters and the system input-output ratio;

The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the input various energy conversion equipment, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration.

In an embodiment, the system further includes: a building module for building an input-output relationship;

The building blocks include:

Build a sub-module for constructing an input-output relationship based on the demand for each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input;

The processing sub-module is configured to perform dimensionless processing on the input-output relational expression to obtain a dimensionless input-output relational expression.

In an embodiment, building a submodule includes:

The acquisition unit is used to acquire various input energy resources and output energy products;

The drawing unit is used to draw the conversion process of inputting various energy resources to produce various energy products through energy conversion equipment;

a determining unit, configured to determine the mutual conversion efficiency between the demand of each energy product in the integrated energy system and the input multiple energy conversion equipment based on the conversion process and the performance parameters of the energy conversion equipment in the conversion process;

Wherein, the energy product includes: heat demand, cooling demand and fixed power demand, and the fixed power demand includes electrical loads of electronic equipment, electric machinery and elevators;

The energy sources include: electricity and fuel.

Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

The above are only examples of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the application for pending approval of the present invention. within the scope of the claims.

Claims (11)

1. A method for determining the installed capacity of an integrated energy system, comprising: Based on the pre-built input-output relationship and the construction requirements of the integrated energy system, two types of parameters in the input-output relationship are determined, and the relationship between the remaining one type of parameters and the system input-output ratio is obtained; Determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining class of parameters and the system input-output ratio; The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the input various energy conversion equipment, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration. 2. The method of claim 1, wherein the construction of the input-output relationship comprises: The input-output relationship is constructed based on the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input; Perform dimensionless processing on the input-output relational expression to obtain a dimensionless input-output relational expression. 3. The method according to claim 2, wherein the mutual conversion efficiency between the demand of each energy product in the integrated energy system and the input multiple energy conversion equipment comprises: Obtain various input energy resources and output energy products; Draw the conversion process of inputting various energy resources to produce various energy products through energy conversion equipment; Based on the conversion process and the performance parameters of the energy conversion equipment in the conversion process, determine the mutual conversion efficiency between the demand for each energy product in the integrated energy system and the input multiple energy conversion equipment; Wherein, the energy product includes: heat demand, cooling demand and fixed power demand, and the fixed power demand includes electrical loads of electronic equipment, electric machinery and elevators; The energy sources include: electricity and fuel. 4. The method of claim 2, wherein the input-output relational formula is as shown in the following formula:

In the formula, R _total : the input-output return of the entire integrated energy system within the set running time; D _c : the cooling demand during the set running time; P _c : the average price of cooling energy; D _h : the set running time heat demand in time; _Ph : average price of heat energy; _De,0 : fixed electricity demand during set operation time; _Pe : average price of electricity; F _in : integrated energy system in set operation The amount of fuel consumed during the time; P _f : the average price of fuel; E _in : the electricity consumed by the integrated energy system during the set operating time. 5. method as claimed in claim 4 is characterized in that, the dimensionless relational expression of described input-output, is shown as following formula:

In the formula, y: the proportion of the user's cold product; z: the proportion of the user's hot product; A: the first intermediate parameter; x: the ratio of the heat produced by the boiler to the total heat demand of the user; B: the second intermediate parameter; Among them: the first intermediate parameter A, calculated as follows:

In the formula: η _boil : the heat production efficiency of the boiler; η _CHP,h : the heat production efficiency of the cogeneration equipment; COP _c : the efficiency of thermal cooling; v: the difference between the heat produced by the electric heating equipment and the total heat demand of the user ratio; t: the ratio of the cooling capacity produced by the electric refrigeration equipment to the total cooling capacity demand of the user; The first intermediate parameter B is calculated as follows:

In the formula: COP _h : the efficiency of electric heating; EER _c : the efficiency of electric cooling; η _CHP,e : the electricity production efficiency of cogeneration equipment. 6. The method according to claim 5, wherein the determining two types of parameters in the input-output relationship, and obtaining the relationship between the remaining one type of parameters and the system input-output ratio, comprising: Determine two types of parameters in the input-output relationship according to the construction requirements of the integrated energy system; Partial derivative analysis is carried out with the remaining class of parameters as independent variables, and the relationship between the remaining class of parameters and the system input-output ratio is determined. 7. The method according to claim 6, characterized in that, carrying out partial derivation analysis with remaining one type of parameter as independent variable, to determine the relational expression of remaining one type of parameter and system input-output ratio, also comprising: Based on the relationship between the remaining class of parameters and the input-output ratio of the system, a graph of the relationship between the remaining class of parameters and the system input-output ratio is drawn. 8. The method according to claim 6, wherein the determining two types of parameters in the input-output relationship, and obtaining the relationship between the remaining one type of parameters and the system input-output ratio, specifically comprising: When the system configuration variables and energy efficiency parameters are fixed, the relationship between energy price and input-output ratio is obtained as shown in the following formula:

9. The method of claim 1, wherein The system configuration includes: the ratio of the heat produced by the boiler to the total heat demand of the user, the ratio of the heat produced by the electric heating equipment to the total heat demand of the user, and the cooling capacity produced by the electric refrigeration equipment and the total heat of the user. ratio of cooling demand; The energy price includes: the average price of cooling energy, the average price of heat energy, the average price of electricity and the average price of fuel; The energy efficiency of the equipment includes: the efficiency of thermal cooling, the efficiency of electric heating, the efficiency of electric cooling, the power generation efficiency of cogeneration equipment, the heat generation efficiency of boilers, and the heat generation efficiency of cogeneration equipment. 10. A system for determining the installed capacity of an integrated energy system, comprising: The first determination module is used to determine two types of parameters in the input-output relationship based on the pre-built input-output relationship and the construction requirements of the integrated energy system, and obtain the relationship between the remaining one type of parameters and the system input-output ratio; The second determination module is configured to determine the installed capacity of each energy device in the integrated energy system based on the relationship between the remaining one type of parameters and the system input-output ratio; The input-output relationship is constructed by the demand of each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input, and the input-output relationship includes three types of parameters, namely energy price, Equipment energy efficiency and system configuration. 11. The system of claim 10, wherein the system further comprises: a building module for building an input-output relationship; The building blocks include: Build a sub-module for constructing an input-output relationship based on the demand for each energy product in the integrated energy system and the mutual conversion efficiency between the various energy conversion equipment input; The processing sub-module is configured to perform dimensionless processing on the input-output relational expression to obtain a dimensionless input-output relational expression.

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