Dynamic comprehensive performance evaluation method and system for comprehensive energy system based on carbon neutralization

Abstract

The invention belongs to the technical field of comprehensive performance evaluation methods, and provides a dynamic comprehensive performance evaluation method and system for a comprehensive energy system based on carbon neutralization, and the technical scheme is as follows: constructing a comprehensive energy system model based on carbon neutralization; constructing a dynamic evaluation index system of the integrated energy system based on carbon neutralization, and obtaining operation data of the integrated energy system based on carbon neutralization in different scheduling modes; calculating an initial evaluation score of each index in the dynamic evaluation index system of the comprehensive energy system according to operation data of the carbon neutralization comprehensive energy system in different scheduling modes, determining the initial evaluation score of each index, and calculating a comprehensive energy project score by combining the initial evaluation score of each index and the corresponding comprehensive weight coefficient; and taking the index evaluation scheme corresponding to the maximum score value as the optimal operation mode of the comprehensive energy. And the optimal operation mode of the comprehensive energy system integrating carbon neutralization, which is environment-friendly, objective in economic benefit, safe and stable can be obtained.

Description

Technical Field

[0001] The present invention belongs to the technical field of comprehensive performance evaluation methods, and in particular, relates to a dynamic comprehensive performance evaluation method and system for an integrated energy system based on carbon neutrality. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] It is imperative to improve the construction of a clean, low-carbon, safe and efficient modern energy system. Against this background, the integrated energy system came into being. Its concept breaks through the technical, market and management barriers of the traditional energy system. It is a comprehensive energy system with unified planning and unified dispatch of various energy sources such as electricity, gas, heat and cold, which is of great significance to promoting the transformation of energy structure.

[0004] The integrated energy system needs to consider how to operate at a low carbon or even zero carbon level on the basis of improving energy efficiency, promoting the use of clean energy, and reducing pollutant emissions. To this end, an integrated energy system based on carbon neutrality has emerged. The integrated energy system based on carbon neutrality absorbs the CO2 produced by the combustion of fossil fuels in the integrated energy system by setting up a chemical-based carbon capture device. At the same time, the system matches the photovoltaic and thermal integration system to provide electricity and heat energy for the integrated energy system including the carbon capture device, so as to reduce fossil energy consumption and improve the efficiency of solar energy utilization. It has broad application prospects. In terms of practical applications, the use of carbon capture devices will reduce greenhouse gas emissions from the integrated energy system and increase the efficiency of waste heat utilization in the system. However, the use of carbon capture devices and supporting hydrogen-to-methane devices in the integrated energy system will inevitably increase the system energy consumption, especially the use of primary energy, which will affect the overall performance of the system. Summary of the invention

[0005] In order to solve at least one technical problem existing in the above-mentioned background technology, the present invention provides a dynamic comprehensive performance evaluation method and system for an integrated energy system based on carbon neutrality, which conducts preliminary evaluation and scoring around four dimensions: technical indicators, ecological environmental indicators, socio-economic indicators, and operation management indicators, and then adopts subjective weighting method + objective weighting method to obtain the comprehensive weight coefficient. The preliminary evaluation score is combined with the comprehensive weight coefficient to obtain objective and accurate scores of the three scheduling modes of the integrated energy system, and then adjusts the system scheduling mode to obtain the optimal operation mode of the integrated energy system that is environmentally friendly, economically beneficial, safe and stable, and includes carbon neutrality.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] The first aspect of the present invention provides a method for evaluating the dynamic comprehensive performance of an integrated energy system based on carbon neutrality, comprising the following steps:

[0008] Build a comprehensive energy system model based on carbon neutrality;

[0009] Construct a dynamic evaluation index system for the integrated energy system based on carbon neutrality, including a quantitative evaluation index system and a qualitative evaluation index system;

[0010] Obtain operating data under different dispatch modes of the integrated energy system based on carbon neutrality;

[0011] According to the operating data of the carbon-neutral integrated energy system under different dispatching modes, the preliminary evaluation scores of each indicator in the dynamic evaluation index system of the integrated energy system are calculated respectively, and the preliminary evaluation scores of each indicator are determined. The scores of the integrated energy projects are calculated by combining the preliminary evaluation scores of each indicator and the corresponding comprehensive weight coefficients. The indicator evaluation plan corresponding to the maximum score is taken as the optimal operating mode of the integrated energy.

[0012] Furthermore, the comprehensive energy system model based on carbon neutrality includes energy input link, energy conversion link and energy output link; in the system energy input link, electric energy is input into the system through the power grid, photovoltaic and thermal integrated equipment provides electric energy and thermal energy for the system, and the natural gas pipeline network provides gas for the system; the energy conversion link includes gas turbines, air source heat pump devices, absorption refrigeration devices, energy storage devices, and carbon neutrality devices; the energy output link includes the output of various energy sources such as electric load, cooling load, heat load and gas.

[0013] Furthermore, different scheduling modes of the integrated energy system based on carbon neutrality include three modes. The first mode is that the carbon capture device in the integrated energy system does not capture the CO2 produced during the operation of the gas turbine and does not consider external purchase of CO2; the hydrogen-to-methane device does not produce methane; and the carbon neutrality constraint is not considered; the second mode is that the carbon capture device in the integrated energy system captures the CO2 produced during the output of the gas turbine; the hydrogen-to-methane device is not considered; and the carbon neutrality constraint is considered; the third mode is that the carbon capture device in the integrated energy system captures the CO2 produced during the operation of the gas turbine; the hydrogen-to-methane device consumes electricity to produce H2, and H2 and CO2 undergo methanation reaction to generate methane that is transported to the natural gas grid; and the carbon neutrality constraint is considered.

[0014] Furthermore, the quantitative evaluation index system and the qualitative evaluation index system include primary indicators, secondary indicators and tertiary indicators;

[0015] In the quantitative evaluation index system, the first-level indicators include technical indicators and ecological environment indicators; each first-level indicator includes multiple second-level indicators, the technical indicators include energy efficiency indicators, cascade utilization indicators and energy storage system configuration indicators; the ecological environment indicators include unit energy consumption emission indicators and renewable energy proportion indicators; some secondary indicators include multiple third-level indicators; the energy efficiency indicators include primary energy utilization rate, comprehensive energy utilization rate and energy saving rate; the cascade utilization indicators include waste heat utilization rate, and the energy storage system configuration indicators include energy storage proportion rate and storage and release energy efficiency;

[0016] Among the qualitative evaluation indicators, the first-level indicators include socio-economic indicators and operation management indicators; among them, the socio-economic indicators include second-level indicators of economic benefit indicators and social benefit indicators, and the operation management indicators include second-level indicators of project operation indicators and project management indicators; the above-mentioned secondary indicators include multiple third-level indicators; among them, economic benefit indicators include income evaluation and capital evaluation indicators; social benefits include policy compliance and legal system indicators; project operation indicators include safety production management and equipment maintenance indicators; project management indicators include rules and regulations formulation and personnel training indicators.

[0017] Furthermore, the calculation formula for the comprehensive energy project score is:

[0018] P=P1+P2+P3+P4,

[0019] P 1＝ ɑ1ω 31 +ɑ2ω 32 +ɑ3ω 33 +ɑ4ω 34 +ɑ5ω 35 +ɑ6ω 36 ,

[0020] P 2＝ ɑ7ω 24 +ɑ8ω 25 ,

[0021] P 3＝ ɑ9ω 37 +ɑ 10 ω 38 +ɑ 11 ω 39 +ɑ 12 ω 310 ,

[0022] P 4＝ ɑ 13 ω 311 +ɑ 14 ω 312 +ɑ 15 ω 313 +ɑ 16 ω314 ,

[0023] Among them, P1 is the score of technical indicators, P2 is the score of ecological environment indicators, P3 is the score of social and economic indicators, and P4 is the score of operation and management indicators. In P1, ɑ1, ɑ2, ɑ3, ɑ4, ɑ5 and ɑ6 are the initial scores of primary energy utilization rate, comprehensive energy utilization rate, energy saving rate, waste heat utilization rate, energy storage ratio, energy storage efficiency and energy release efficiency, respectively, and the corresponding comprehensive weight coefficients are ω 31 ,ω 32 ,ω 33 ,ω 34 ,ω 35 ,ω 36 ; In P2, ɑ7 and ɑ8 are the initial scores of the unit energy consumption emission index and the renewable energy proportion index, respectively, and the corresponding comprehensive weight coefficients are ω 24 and ω 25 ; In P3, ɑ9, ɑ 10 、ɑ 11 、ɑ 12 are the initial scores of benefit evaluation, capital evaluation, policy compliance, and legal system, and the corresponding comprehensive weight coefficients are ω 37 ,ω 38 ,ω 39 ,ω 310 ; In P4, ɑ 13 、ɑ 14 、ɑ 15 、ɑ 16 are the initial scores for production safety management, equipment maintenance, rules and regulations, and personnel training, and the corresponding comprehensive weight coefficients are ω 311 ,ω 312 ,ω 313 ,ω 314 .

[0024] Furthermore, the process of determining the weight of each indicator includes:

[0025] Determine the subjective weight of each indicator based on the subjective weighting method i ;

[0026] Based on the objective weighting method, the objective weight θ of each indicator is obtained j ;

[0027] Combined weight coefficient γ i With θ j Calculate the comprehensive weight coefficient w of each indicator j .

[0028] The second aspect of the present invention provides a dynamic comprehensive performance evaluation system for an integrated energy system based on carbon neutrality, comprising:

[0029] System model building module, which is used to build a comprehensive energy system model based on carbon neutrality;

[0030] An evaluation index construction module, which is used to construct a dynamic evaluation index system for an integrated energy system based on carbon neutrality, including a quantitative evaluation index system and a qualitative evaluation index system;

[0031] A data acquisition module, which is used to obtain operating data under different dispatching modes of a carbon-neutral integrated energy system;

[0032] The system scheduling plan generation module is used to calculate the preliminary evaluation scores of each indicator in the dynamic evaluation index system of the integrated energy system according to the operating data of the carbon-neutral integrated energy system under different scheduling modes, determine the preliminary evaluation scores of each indicator, and calculate the comprehensive energy project scores based on the preliminary evaluation scores of each indicator and the corresponding comprehensive weight coefficients. The indicator evaluation plan corresponding to the maximum score is taken as the optimal operating mode of the integrated energy.

[0033] A third aspect of the present invention provides a computer-readable storage medium.

[0034] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps in the method for dynamic comprehensive performance evaluation of an integrated energy system based on carbon neutrality as described above.

[0035] A fourth aspect of the present invention provides a computer device.

[0036] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps in the method for dynamic comprehensive performance evaluation of an integrated energy system based on carbon neutrality as described above are implemented.

[0037] The fifth aspect of the present invention provides a program product, which is a computer program product, including a computer program, which, when executed by a processor, implements the steps in the method for dynamic comprehensive performance evaluation of an integrated energy system based on carbon neutrality as described above.

[0038] The beneficial effects of the present invention are:

[0039] Compared with the existing technology, the present invention conducts preliminary evaluation and scoring based on four dimensions: technical indicators, ecological environmental indicators, socio-economic indicators, and operation management indicators. The subjective weighting method + objective weighting method is then used to obtain the comprehensive weight coefficient. The preliminary evaluation scores are combined with the comprehensive weight coefficient to obtain objective and accurate scores for the three conventional scheduling modes of the integrated energy system, and then the system scheduling mode is adjusted to obtain the optimal operation mode of the integrated energy system that is environmentally friendly, economically beneficial, safe and stable, and includes carbon neutrality.

[0040] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0042] Figure 1 It is a flow chart of a method for dynamic comprehensive performance evaluation of an integrated energy system based on carbon neutrality provided by an embodiment of the present invention;

[0043] Figure 2 This is a model diagram of a comprehensive energy system based on carbon neutrality provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0045] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Embodiment 1

[0048] like Figure 1 As shown, this embodiment provides a dynamic comprehensive performance evaluation method for an integrated energy system based on carbon neutrality, comprising the following steps:

[0049] Step 1: Construct a comprehensive energy system model based on carbon neutrality;

[0050] like Figure 2 As shown, the comprehensive energy system based on carbon neutrality includes energy input link, energy conversion link, and energy output link;

[0051] Specifically, in the energy input link of the system, the power grid inputs electric energy to the system, the photovoltaic and thermal integrated equipment provides the system with electric energy and thermal energy, and the natural gas pipeline network provides gas to the system;

[0052] The energy conversion link includes gas turbines, air source heat pump devices, absorption refrigeration devices, energy storage devices, and carbon neutralization devices (hydrogen to methane installation + carbon capture device).

[0053] The energy output link includes the output of various energy sources such as electrical load, cooling load, heating load and gas.

[0054] The above-mentioned integrated energy system based on carbon neutrality includes three scheduling modes, as shown in Table 1:

[0055] Table 1 Three dispatch modes of integrated energy system

[0056] model Carbon capture device Hydrogen to Methane Plant Consider carbon neutrality? Mode 1 no no no Mode 2 run no yes Mode 3 run run yes

[0057] Mode 1: The carbon capture device in the integrated energy system does not capture the CO2 produced during the operation of the gas turbine and does not consider external purchase of CO2; the hydrogen-to-methane device does not produce methane; and carbon neutrality constraints are not considered.

[0058] Model 2: The carbon capture device in the integrated energy system captures the CO2 produced during the gas turbine output process; the hydrogen-to-methane device is not considered; and the carbon neutrality constraint is taken into account.

[0059] The expression of the carbon neutrality constraint is:

[0060] E 排放 =E 中和 ,

[0061]

[0062] In the formula, E 排放 CO2 emitted from methane combustion in gas turbines, t; is the methane combustion consumption of gas turbine, 10 4 Nm 3 ;Q DW The low calorific value of methane, GJ / 10 4 Nm 3 ; C is the carbon content of methane per unit calorific value, tC / GJ; OF is the carbon oxidation rate of methane, %; It is the ratio of the relative molecular mass of CO2 to carbon.

[0063]

[0064] In the formula, E 中和 CO2 absorbed by the carbon capture device, t; is the flue gas volume flow rate at the end of the gas turbine, 10 4 Nm 3 ; is the CO2 content in the tail flue gas, %; 19.77 is the density of CO2 under standard conditions, t / 10 4 Nm 3 .

[0065] Mode 3: In the integrated energy system, the carbon capture device captures the CO2 produced during the operation of the gas turbine; the hydrogen-to-methane device consumes electricity to produce H2, and H2 and CO2 undergo a methanogenic reaction to generate methane that is transported to the natural gas grid; the carbon neutrality constraint is considered. The expression of the carbon neutrality constraint is the same as that of Mode 2.

[0066] Step 2: Construct a quantitative evaluation index system and a qualitative evaluation index system for the integrated energy system based on carbon neutrality;

[0067] The quantitative evaluation index system and the qualitative evaluation index system include primary index, secondary index and tertiary index;

[0068] Among them, in the quantitative evaluation index system, the first-level indicators include technical indicators and ecological environment indicators;

[0069] Each primary indicator includes multiple secondary indicators. The technical indicators include energy efficiency indicators, cascade utilization indicators and energy storage system configuration indicators; the ecological environment indicators include unit energy consumption emission indicators and renewable energy proportion indicators. The corresponding preliminary evaluation scores (percentage system) are ɑ7 and ɑ8 respectively, and the comprehensive weight coefficient ω 24 ,ω 25 .

[0070] Some secondary indicators include multiple third-level indicators; the energy efficiency indicators include primary energy utilization rate, comprehensive energy utilization rate and energy saving rate; the cascade utilization indicators include waste heat utilization rate, and the energy storage system configuration indicators include energy storage ratio and storage and release efficiency. The corresponding initial evaluation scores (percentage system) are ɑ1, ɑ2, ɑ3, ɑ4, ɑ5 and ɑ6, respectively, and the comprehensive weight coefficient ω 31 ,ω 32 ,ω 33 ,ω 34 ,ω 35 ,ω 36 .

[0071] Among the qualitative evaluation indicators of the integrated energy system based on carbon neutrality, the first-level indicators include socio-economic indicators and operation management indicators;

[0072] Among them, the social and economic indicators include secondary indicators of economic benefit indicators and social benefit indicators, and the operation and management indicators include secondary indicators of project operation indicators and project management indicators.

[0073] The above secondary indicators include multiple third-level indicators; the economic benefit indicators include income evaluation and capital evaluation indicators, and the corresponding initial evaluation scores (percentage system) are ɑ9, ɑ 10 , comprehensive weight coefficient ω 37 ,ω 38 ; Social benefits include policy compliance and legal system indicators, and the corresponding initial evaluation scores (percentage point system) are ɑ 11 、ɑ 12 , comprehensive weight coefficient ω 39 ,ω 310 ; The project operation indicators include safety production management and equipment maintenance indicators, and the corresponding initial evaluation scores (percentage system) are ɑ 13 、ɑ 14 , comprehensive weight coefficient ω 311 ,ω 312 ; Project management indicators include rules and regulations formulation and personnel training indicators, and the corresponding initial evaluation scores (percentage system) are ɑ 15 、ɑ 16 , comprehensive weight coefficient ω 313 ,ω 314 .

[0074] The calculation formula for the first-level indicator score is:

[0075] The technical indicator score calculation formula is:

[0076] P1=ɑ1ω 31 +ɑ2ω 32 +ɑ3ω 33 +ɑ4ω 34 +ɑ5ω 35 +ɑ6ω 36 (1)

[0077] The score calculation formula for the ecological environment indicator is:

[0078] P2=ɑ7ω 24 +ɑ8ω 25 (2)

[0079] The score calculation formula for the socioeconomic indicator is:

[0080] P3=ɑ9ω 37 +ɑ 10 ω 38 +ɑ 11 ω 39 +ɑ 12 ω 310 (3)

[0081] The score calculation formula for the operation management indicator is:

[0082] P4=ɑ 13ω 311 +ɑ 14 ω 312 +ɑ 15 ω 313 +ɑ 16 ω 314 (4)

[0083] The total score is calculated as follows:

[0084] P=P1+P2+P3+P4.

[0085] Step 3: Obtain operation data and related data under different dispatch modes of the integrated energy system based on carbon neutrality;

[0086] In this embodiment, in order to obtain data in the quantitative evaluation index system, the comprehensive energy system is equipped with necessary metering and monitoring equipment such as electricity meters, heat meters, flow meters, thermocouples, ambient thermometers, solar radiation meters, etc. around cold, heat, electricity, gas and meteorological data, and ensures that the metering and monitoring equipment performs effective measurement / calibration to ensure that the data error is within the allowable range.

[0087] Based on the qualitative indicator evaluation system, financial data such as investment costs and benefits of the integrated energy system are collected from the two aspects of social economy and operation management.

[0088] Step 4: Calculate the evaluation scores of each indicator based on the operating data of the carbon-neutral integrated energy system under different dispatch modes and the constructed evaluation index system;

[0089] Among them, for the evaluation scores of quantitative indicators, the evaluation scores of each indicator are calculated through the constructed evaluation indicator system;

[0090] Energy efficiency indicators:

[0091] The calculation formula for primary energy utilization is:

[0092]

[0093] Where P1 is the comprehensive utilization rate of primary energy; Q′ c is the total cooling energy generated by the comprehensive energy system in a specified time by consuming primary energy, kJ; Q' h It is the total heat energy generated by the comprehensive energy system in a specified time by consuming primary energy, kJ; Q e ' is the total electric energy generated by the integrated energy system through the consumption of primary energy in the specified time, kJ; Q1 is the total primary energy consumed by the integrated energy system in the specified time, kJ.

[0094] The calculation formula for comprehensive energy utilization rate is:

[0095]

[0096] Where P PER is the comprehensive utilization rate of primary energy; Q c is the total cooling energy generated by the integrated energy system in a specified time, kJ; Q h is the total heat energy generated by the integrated energy system in a specified time, kJ; Q e is the total electrical energy generated by the integrated energy system in a specified time, kJ; Q is the energy consumed by the integrated energy system in a specified time, kJ.

[0097] The energy saving rate is calculated as follows:

[0098]

[0099] In the formula, ξ c is the energy saving rate; Q0 is the primary energy consumed by the benchmark system when it produces the same amount of cold, heat and electricity, kJ;

[0100] Among the cascade utilization indicators,

[0101] The calculation formula of waste heat utilization rate is:

[0102]

[0103] Where η wh is the waste heat utilization rate; Q wh，e is the waste heat power generation of the comprehensive energy system within the specified time, kJ; Q wh，c is the waste heat generated by the comprehensive energy system within a specified time, kJ; Q wh，h is the waste heat cooling capacity of the comprehensive energy system within a specified time, kJ; Q y It is the waste heat of the comprehensive energy system within the specified time, kJ.

[0104] Among the energy storage system configuration indicators,

[0105] The calculation formula for energy storage ratio is:

[0106]

[0107] Where η c is the energy storage ratio; E is the energy storage capacity, kJ.

[0108] Energy storage efficiency and energy release efficiency:

[0109] Energy storage efficiency and energy release efficiency refer to the ratio of stored energy to total input energy on the energy storage side and the ratio of released energy to the charging capacity during the cycle, respectively.

[0110] Among the ecological environment indicators,

[0111] The calculation formula for unit energy consumption emission index is:

[0112]

[0113] Where B is the total pollution equivalent number; m x is the emission of nitrogen, carbon and sulfide, kg; a x is the nitrogen, carbon and sulfide equivalent value, kg.

[0114] The formula for calculating the proportion of renewable energy is:

[0115]

[0116] Where η e is the proportion of renewable energy; Q e is the converted heat of renewable energy consumption, kJ.

[0117] For the evaluation scores of qualitative targets, experts will make preliminary scores based on the actual situation;

[0118] Economic benefit indicators:

[0119] Among them, the benefit evaluation mainly conducts in-depth analysis and evaluation of various expenditures, income and benefits during the entire life cycle of the project. The evaluation indicators clearly reflected in the benefit evaluation are:

[0120] a. Customer needs, various purchase and sales items, and investment recovery models;

[0121] b. Financial methods such as investment, depreciation, expenses, income, taxes, deductions, etc.;

[0122] c. Internal rate of return, net present value, and payback period.

[0123] Fund evaluation mainly conducts in-depth analysis and evaluation of the source, flow and use of funds for the project. The evaluation indicators clearly reflected in the fund evaluation are:

[0124] a. Investment content and amount, investment subject and investment path, and financing plan;

[0125] b. Construction schedule, capital utilization and turnover, and cash flow.

[0126] Social benefit indicators:

[0127] Policy compliance conducts a comprehensive analysis of the policy support system for project operations, and by evaluating the impact of project-related policies on project operations, clarifies the pros and cons of the project's policy environment on project investment.

[0128] The legal system is a comprehensive analysis and evaluation of various laws, regulations and judicial actions related to the operation of the project, including the basic laws and regulations, operating regulations, economic activity supervision systems, labor and social security systems, and tax regulations and systems of enterprises operating related to the integrated energy system.

[0129] Project operation indicators:

[0130] Safety production management: Formulate operation and maintenance procedures and management systems for the integrated energy system.

[0131] When inspecting the gas area of ​​the integrated energy system, operation and maintenance personnel shall wear work clothes that prevent the generation of static electricity, and use explosion-proof lighting appliances, tools and labor protection supplies. Non-explosion-proof wireless communication equipment and electronic products shall not be carried out. Before entering the voltage regulating station, fire sources shall be surrendered and static electricity shall be released. Without approval, operations that may generate sparks shall not be performed in the station. Maintenance and inspection operations must be carried out by units and professionals with corresponding qualifications, and special personnel shall be assigned to supervise the operation site.

[0132] The integrated energy system facilities have reliable lightning protection devices, which are inspected twice a year, including one before the thunderstorm season.

[0133] The use and management of pressure vessels in integrated energy systems shall be carried out in accordance with the Special Equipment Safety Law of the People's Republic of China.

[0134] Project operation and maintenance: The integrated energy system shall be inspected regularly in accordance with relevant regulations on operation and maintenance, and inspection records shall be kept. Any problems found during the inspection shall be reported in a timely manner and effective treatment measures shall be taken.

[0135] Project Management Indicators

[0136] Formulation of rules and regulations: The integrated energy system shall establish and improve rules and regulations on production safety and occupational health, and solicit opinions and suggestions from trade unions and practitioners to standardize production safety and occupational health management.

[0137] In accordance with relevant regulations, the integrated energy system combines the company's production processes, operating task characteristics, job safety risks and occupational disease prevention requirements to compile complete and applicable job safety production and occupational health operating procedures, distribute them to employees in relevant positions, and strictly implement them.

[0138] Personnel training: The integrated energy system provides operational skills, production safety and occupational health education and training to the main responsible persons and production management personnel to ensure that the practitioners have the operational skills, production safety and occupational health knowledge that meet the job requirements, are familiar with the relevant production safety and occupational health laws, regulations, rules and regulations, and operating procedures, master the safe operating skills and occupational hazard protection skills of the position, safety risk identification and control methods, understand the emergency response measures at the accident site, and conduct regular refresher training and assessment according to actual needs.

[0139] Step 5: Combine the evaluation results of each indicator under different dispatch modes of the carbon-neutral integrated energy system to determine the weight of each indicator, and combine the initial evaluation scores of each indicator and the corresponding comprehensive weight coefficient to determine the optimal operation mode of the integrated energy;

[0140] The specific steps include:

[0141] Step 501: Determine the comprehensive weight coefficient w of each indicator based on the subjective weighting method and the objective weighting method j , among which subjective weighting methods include analytic hierarchy process, priority diagram method, etc.; objective weighting methods include entropy method, principal component analysis method, factor analysis method, CRITIC method, independence weight method, information weight method, etc. Users can flexibly choose according to the situation.

[0142] Step 502: Combine the weight coefficient γ of the subjective weighting method i and the weight coefficient θ of the objective weighting method j Calculate the comprehensive weight coefficient w of each indicator j .

[0143]

[0144] Step 503: Combine the initial evaluation scores α of various indicators j And the corresponding comprehensive weight coefficient w j Calculate the score P of the comprehensive energy project and take the indicator evaluation scheme corresponding to the maximum score as the optimal operation mode of the comprehensive energy.

[0145] Embodiment 2

[0146] This embodiment provides a dynamic comprehensive performance evaluation system for an integrated energy system based on carbon neutrality, including:

[0147] System model building module, which is used to build a comprehensive energy system model based on carbon neutrality;

[0148] An evaluation index construction module, which is used to construct a dynamic evaluation index system for an integrated energy system based on carbon neutrality, including a quantitative evaluation index system and a qualitative evaluation index system;

[0149] A data acquisition module, which is used to obtain operating data under different dispatching modes of a carbon-neutral integrated energy system;

[0150] The system scheduling plan generation module is used to calculate the preliminary evaluation scores of each indicator in the dynamic evaluation index system of the integrated energy system according to the operating data of the carbon-neutral integrated energy system under different scheduling modes, determine the preliminary evaluation scores of each indicator, and calculate the comprehensive energy project scores based on the preliminary evaluation scores of each indicator and the corresponding comprehensive weight coefficients. The indicator evaluation plan corresponding to the maximum score is taken as the optimal operating mode of the integrated energy.

[0151] Embodiment 3

[0152] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps in the dynamic comprehensive performance evaluation method of an integrated energy system based on carbon neutrality as described above are implemented.

[0153] Embodiment 4

[0154] This embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps in the method for dynamic comprehensive performance evaluation of an integrated energy system based on carbon neutrality as described above are implemented.

[0155] Embodiment 5

[0156] This embodiment provides a program product, which is a computer program product, including a computer program. When the computer program is executed by a processor, it implements the steps in the dynamic comprehensive performance evaluation method of an integrated energy system based on carbon neutrality as described above.

[0157] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0158] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0159] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0160] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0161] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0162] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dynamic comprehensive performance evaluation method for an integrated energy system based on carbon neutrality, characterized in that: The steps include: Build a comprehensive energy system model based on carbon neutrality; Construct a dynamic evaluation index system for the integrated energy system based on carbon neutrality, including a quantitative evaluation index system and a qualitative evaluation index system; Obtain operating data under different dispatch modes of the integrated energy system based on carbon neutrality; According to the operating data of the carbon-neutral integrated energy system under different dispatching modes, the preliminary evaluation scores of each indicator in the dynamic evaluation index system of the integrated energy system are calculated respectively, and the preliminary evaluation scores of each indicator are determined. The scores of the integrated energy projects are calculated by combining the preliminary evaluation scores of each indicator and the corresponding comprehensive weight coefficients. The indicator evaluation plan corresponding to the maximum score is taken as the optimal operating mode of the integrated energy.

2. The dynamic comprehensive performance evaluation method of the integrated energy system based on carbon neutrality according to claim 1 is characterized in that: The comprehensive energy system model based on carbon neutrality includes energy input link, energy conversion link and energy output link; in the system energy input link, electric energy is input into the system through the power grid, photovoltaic and thermal integrated equipment provides electric energy and thermal energy for the system, and the natural gas pipeline network provides gas for the system; the energy conversion link includes gas turbines, air source heat pump devices, absorption refrigeration devices, energy storage devices, and carbon neutrality devices; the energy output link includes the output of various energy sources such as electric load, cooling load, heat load and gas.

3. The dynamic comprehensive performance evaluation method of the integrated energy system based on carbon neutrality according to claim 1 is characterized in that: The different scheduling modes of the integrated energy system based on carbon neutrality include three modes. The first mode is that the carbon capture device in the integrated energy system does not capture the CO2 produced during the operation of the gas turbine and does not consider external purchase of CO2; the hydrogen-to-methane device does not produce methane; and the carbon neutrality constraint is not considered; the second mode is that the carbon capture device in the integrated energy system captures the CO2 produced during the output of the gas turbine; the hydrogen-to-methane device is not considered; and the carbon neutrality constraint is considered; the third mode is that the carbon capture device in the integrated energy system captures the CO2 produced during the operation of the gas turbine; the hydrogen-to-methane device consumes electricity to produce H2, and H2 and CO2 undergo methanation reaction to generate methane that is transported to the natural gas grid; and the carbon neutrality constraint is considered.

4. The dynamic comprehensive performance evaluation method of the integrated energy system based on carbon neutrality according to claim 1 is characterized in that: The quantitative evaluation index system and the qualitative evaluation index system include primary index, secondary index and tertiary index; In the quantitative evaluation index system, the first-level indicators include technical indicators and ecological environment indicators; each first-level indicator includes multiple second-level indicators, the technical indicators include energy efficiency indicators, cascade utilization indicators and energy storage system configuration indicators; the ecological environment indicators include unit energy consumption emission indicators and renewable energy proportion indicators; some secondary indicators include multiple third-level indicators; the energy efficiency indicators include primary energy utilization rate, comprehensive energy utilization rate and energy saving rate; the cascade utilization indicators include waste heat utilization rate, and the energy storage system configuration indicators include energy storage proportion rate and storage and release energy efficiency; Among the qualitative evaluation indicators, the first-level indicators include socio-economic indicators and operation management indicators; among them, the socio-economic indicators include second-level indicators of economic benefit indicators and social benefit indicators, and the operation management indicators include second-level indicators of project operation indicators and project management indicators; the above-mentioned secondary indicators include multiple third-level indicators; among them, economic benefit indicators include income evaluation and capital evaluation indicators; social benefits include policy compliance and legal system indicators; project operation indicators include safety production management and equipment maintenance indicators; project management indicators include rules and regulations formulation and personnel training indicators.

5. The dynamic comprehensive performance evaluation method of the integrated energy system based on carbon neutrality according to claim 1 is characterized in that: The calculation formula for the comprehensive energy project score is: P=P1+P2+P3+P4, P 1＝ ɑ1ω 31 +ɑ2ω 32 +ɑ3ω 33 +ɑ4ω 34 +ɑ5ω 35 +ɑ6ω 36 , P 2＝ ɑ7ω 24 +ɑ8ω 25 , P 3＝ ɑ9ω 37 +ɑ 10 oh 38 +ɑ 11 oh 39 +ɑ 12 oh 310 , P 4＝ a 13 oh 311 +ɑ 14 oh 312 +ɑ 15 oh 313 +ɑ 16 oh 314 , Among them, P1 is the score of technical indicators, P2 is the score of ecological environment indicators, P3 is the score of social and economic indicators, and P4 is the score of operation and management indicators. In P1, ɑ1, ɑ2, ɑ3, ɑ4, ɑ5 and ɑ6 are the initial scores of primary energy utilization rate, comprehensive energy utilization rate, energy saving rate, waste heat utilization rate, energy storage ratio, energy storage efficiency and energy release efficiency, respectively, and the corresponding comprehensive weight coefficients are ω 31 ,ω 32 ,ω 33 ,ω 34 ,ω 35 ,ω 36 ; In P2, ɑ7 and ɑ8 are the initial scores of the unit energy consumption emission index and the renewable energy proportion index, respectively, and the corresponding comprehensive weight coefficients are ω 24 and ω 25 ; In P3, ɑ9, ɑ 10 、ɑ 11 、ɑ 12 are the initial scores of benefit evaluation, capital evaluation, policy compliance, and legal system, and the corresponding comprehensive weight coefficients are ω 37 ,ω 38 ,ω 39 ,ω 310 ; In P4, ɑ 13 、ɑ 14 、ɑ 15 、ɑ 16 are the initial scores for production safety management, equipment maintenance, rules and regulations, and personnel training, and the corresponding comprehensive weight coefficients are ω 311 ,ω 312 ,ω 313 ,ω 314 .

6. The dynamic comprehensive performance evaluation method of the integrated energy system based on carbon neutrality according to claim 1 is characterized in that: The process of determining the weights of each indicator includes: Determine the subjective weight of each indicator based on the subjective weighting method i ; Based on the objective weighting method, the objective weight θ of each indicator is obtained j ; Combined weight coefficient γ i With θ j Calculate the comprehensive weight coefficient w of each indicator j .

7. A dynamic comprehensive performance evaluation system for an integrated energy system based on carbon neutrality, characterized in that: include: System model building module, which is used to build a comprehensive energy system model based on carbon neutrality; An evaluation index construction module, which is used to construct a dynamic evaluation index system for an integrated energy system based on carbon neutrality, including a quantitative evaluation index system and a qualitative evaluation index system; A data acquisition module, which is used to obtain operating data under different dispatching modes of a carbon-neutral integrated energy system; The system scheduling plan generation module is used to calculate the preliminary evaluation scores of each indicator in the dynamic evaluation index system of the integrated energy system according to the operating data of the carbon-neutral integrated energy system under different scheduling modes, determine the preliminary evaluation scores of each indicator, and calculate the comprehensive energy project scores based on the preliminary evaluation scores of each indicator and the corresponding comprehensive weight coefficients. The indicator evaluation plan corresponding to the maximum score is taken as the optimal operating mode of the integrated energy.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, it implements the steps in the dynamic comprehensive performance evaluation method of an integrated energy system based on carbon neutrality as described in any one of claims 1 to 6.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, it implements the steps in the dynamic comprehensive performance evaluation method of an integrated energy system based on carbon neutrality as described in any one of claims 1-6.

10. A program product, the program product being a computer program product, comprising a computer program, characterized in that: When the computer program is executed by a processor, the steps in the dynamic comprehensive performance evaluation method of an integrated energy system based on carbon neutrality are implemented as described in any one of claims 1 to 6.

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