Pollution reduction and carbon reduction synergistic effect evaluation system and method for optimizing load distribution

Abstract

The invention provides a pollution reduction and carbon reduction synergistic effect evaluation system and method for optimizing load distribution, and the system comprises a carbon emission accounting subsystem which is used for accounting the carbon emission of a coal-fired power generation unit; the carbon emission and operation load fitting subsystem is used for fitting the carbon emission of the coal-fired power generation unit and the operation load of the corresponding unit to obtain carbon emission data; the pollutant and operation load fitting subsystem is used for fitting the pollutant discharge amount of the coal-fired power generation unit and the operation load of the corresponding unit to obtain pollutant data; the pollution reduction and carbon reduction synergistic effect evaluation subsystem is used for evaluating the pollution reduction and carbon reduction synergistic effect of the coal-fired power plant; the system further comprises a load distribution optimization subsystem which is used for constructing a multi-target optimization model which takes the total load balance of the coal-fired power plant and the upper and lower limits of the output of the generator set as constraints based on the evaluation result, and optimizing the load distribution of the coal-fired power plant through the multi-target optimization model.

Description

Technical Field

[0001] The present invention relates to the field of energy and environmental technology, and in particular to a pollution reduction and carbon reduction synergistic effect evaluation system and method for optimizing load distribution. Background Art

[0002] According to a report by the International Energy Agency, global carbon emissions reached 37.4 billion tons in 2023, a record high. Among them, the growth of fossil fuel power generation has led to an increase of about 170 million tons of carbon emissions, accounting for about 40% of the total increase in emissions in 2023. Therefore, gradually reducing carbon emissions from fossil fuel power generation will become the most important way to achieve the 1.5°C temperature control target of the Paris Agreement. Studies have shown that the load borne by coal-fired power plant units is directly related to their carbon emissions and pollutant emissions. Therefore, a reasonable unit load distribution plan will directly affect the carbon emissions and pollutant emissions of coal-fired power plants. At present, coal-fired power plants usually choose to evenly distribute power generation tasks to each unit on the premise of meeting the grid load demand instructions, but this distribution plan does not fully consider the emission differences caused by unit performance. Summary of the invention

[0003] The purpose of the present invention is to provide a pollution reduction and carbon reduction synergistic effect evaluation system and method for optimizing load distribution, aiming to solve the above-mentioned problems in the prior art.

[0004] The embodiment of the present invention provides a pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution, comprising a carbon emission accounting subsystem, a carbon emission and operation load fitting subsystem, a pollutant and operation load fitting subsystem, and a pollution reduction and carbon reduction synergistic effect evaluation subsystem connected in sequence;

[0005] The carbon emission accounting subsystem is used to calculate the carbon emissions of coal-fired power generation units;

[0006] The carbon emission and operating load fitting subsystem is used to fit the carbon emission of the coal-fired power generation unit with the operating load of the corresponding unit to obtain carbon emission data;

[0007] The pollutant and operating load fitting subsystem is used to fit the pollutant emissions of the coal-fired power generation units with the operating loads of the corresponding units to obtain pollutant data;

[0008] The pollution reduction and carbon reduction synergistic effect evaluation subsystem is used to evaluate the pollution reduction and carbon reduction synergistic effect of coal-fired power plants based on carbon emission data and pollutant data.

[0009] The embodiment of the present invention provides a method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution, comprising:

[0010] Calculate the carbon emissions of coal-fired power generation units through the carbon emission accounting subsystem;

[0011] The carbon emission and operating load fitting subsystem is used to fit the carbon emission of coal-fired power generation units with the operating load of the corresponding units to obtain carbon emission data;

[0012] The pollutant emissions of coal-fired power generation units are fitted with the operating loads of the corresponding units through the pollutant and operating load fitting subsystem to obtain pollutant data;

[0013] The pollution reduction and carbon reduction synergy effect evaluation subsystem is used to evaluate the pollution reduction and carbon reduction synergy effect of coal-fired power plants based on carbon emission data and pollutant data.

[0014] An embodiment of the present invention also provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the above-mentioned method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution are implemented.

[0015] An embodiment of the present invention also provides a computer-readable storage medium, on which an implementation program for information transmission is stored. When the program is executed by a processor, the steps of the above-mentioned method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution are implemented.

[0016] The use of the embodiments of the present invention can include the following beneficial effects: the embodiments of the present invention use a multi-objective optimization algorithm to solve the optimal solution for load optimization allocation of coal-fired power plants, and introduce a pollution reduction and carbon reduction synergy evaluation model to quantify the synergistic reduction effect of load optimization allocation on pollutants and carbon emissions of coal-fired power plants, thereby promoting the green and low-carbon development of the coal-fired power generation industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 is a schematic diagram of a pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution according to an embodiment of the present invention;

[0019] Figure 2 It is a flow chart of a method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the following will be combined with the drawings in one or more embodiments of this specification to clearly and completely describe the technical solutions in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this document.

[0021] System Example

[0022] According to an embodiment of the present invention, a pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution is provided. Figure 1 Schematic diagram of a pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution according to an embodiment of the present invention. Figure 1 As shown, the pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution according to an embodiment of the present invention specifically includes a carbon emission accounting subsystem, a carbon emission and operation load fitting subsystem, a pollutant and operation load fitting subsystem and a pollution reduction and carbon reduction synergistic effect evaluation subsystem connected in sequence;

[0023] The carbon emission calculation subsystem 10 is used to calculate the carbon emission of the coal-fired power generation unit, specifically for:

[0024] The carbon emissions of coal-fired power generation units are calculated using Formula 2 based on the coal quality and coal consumption data of the coal-fired power generation units;

[0025]

[0026] Among them, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, B i,t represents the coal consumption per unit of power generation of the i-th unit in a coal-fired power plant during period t, FC i,t represents the coal consumption of the i-th unit of a coal-fired power plant during period t, C ar,i,t It indicates the carbon content of the base element received by the i-th unit of the coal-fired power plant during the period t, OF i,t represents the carbon oxidation rate of the i-th unit of a coal-fired power plant during period t;

[0027] The carbon emission and operating load fitting subsystem 12 is used to fit the carbon emission of the coal-fired power generation unit with the operating load of the corresponding unit to obtain carbon emission data, which is specifically used for:

[0028] The hourly carbon emissions of coal-fired power generation units are fitted with the operating load of the corresponding units, and the carbon emission data are calculated using the fitting relationship shown in Formula 3;

[0029]

[0030] Among them, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, P i,t represents the operating load of the i-th unit of a coal-fired power plant during period t, a i represents the quadratic coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load, b i represents the linear coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load, c i represents the constant term coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load, and n represents the total number of units;

[0031] The pollutant and operation load fitting subsystem 14 is used to fit the pollutant emission of the coal-fired power generation unit with the operation load of the corresponding unit to obtain pollutant data, which is specifically used for:

[0032] The hourly pollutant emissions of coal-fired power generation units are fitted with the operating load of the corresponding units, and the pollutant data are calculated according to the fitting relationship shown in Formula 4;

[0033]

[0034] Among them, Pollution i,t represents the pollutant emissions of the i-th unit of a coal-fired power plant during period t, P i,t represents the operating load of the i-th unit of a coal-fired power plant during period t, α i represents the quadratic coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load, β i represents the linear coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load, γ i It represents the constant term coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load;

[0035] The pollution reduction and carbon reduction synergistic effect evaluation subsystem 16 is used to evaluate the pollution reduction and carbon reduction synergistic effect of coal-fired power plants based on carbon emission data and pollutant data;

[0036] The pollution reduction and carbon reduction synergistic effect evaluation subsystem includes a pollution reduction and carbon reduction synergistic effect calculation system module, a carbon pollution data preprocessing module and a synergistic index calculation module which are connected in sequence;

[0037] The pollution reduction and carbon reduction synergy effect calculation system module is used to construct a pollution reduction and carbon reduction synergy index calculation system based on carbon emission data and pollutant data;

[0038] The carbon pollution data preprocessing module is used to perform standardization processing on carbon emission data and pollutant data to obtain standardized carbon pollution data;

[0039] The synergy index calculation module is used to calculate the pollution reduction and carbon reduction synergy index of the coal-fired power plant using Formula 5 according to the pollution reduction and carbon reduction synergy index calculation system and the standardized carbon pollution data;

[0040]

[0041] Among them, Synergy Index t represents the pollution reduction and carbon reduction synergy index of coal-fired power plants in period t, U i represents the value of the corresponding indicator of the i-th unit in the coal-fired power plant after data standardization, m represents the number of units in the coal-fired power plant, n represents the number of indicators used to calculate the pollution reduction and carbon reduction synergy index of the i-th unit in the coal-fired power plant, and X k,i represents the standardized value of the kth indicator of the coal-fired power plant at time i;

[0042] The system further comprises:

[0043] A load distribution optimization subsystem is connected to the pollution reduction and carbon reduction synergistic effect evaluation subsystem, and is used to construct a multi-objective optimization model with the total load balance of the coal-fired power plant and the upper and lower limits of the output of the generator set as constraints based on the evaluation results by using a particle swarm algorithm, and optimize the load distribution of the coal-fired power plant through the multi-objective optimization model shown in Formula 1;

[0044]

[0045] Among them, Carbon i represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant, Pollution i represents the pollutant emission of the i-th unit in a coal-fired power plant, P i represents the operating load of the i-th unit in a coal-fired power plant, a i , b i 、c i They represent the quadratic term, linear term and constant term in the carbon emission fitting curve of the i-th unit of a coal-fired power plant, respectively. i , β i , γ i They represent the quadratic term, linear term and constant term in the pollutant fitting curve of the i-th unit of the coal-fired power plant, P0 represents the total load demand of the coal-fired power plant, P imax represents the rated power of the i-th unit in a coal-fired power plant, P imin Represents the minimum output of the i-th unit of a coal-fired power plant.

[0046] The above technical scheme of the embodiment of the present invention is described in detail below in combination with the specific situation of the pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution in the embodiment of the present invention.

[0047] The embodiment of the present invention proposes a pollution reduction and carbon reduction synergy evaluation system based on the operating load, coal consumption and pollutant emission data of coal-fired power plant units. The pollutants involved are typical atmospheric pollutants, and carbon emissions specifically refer to carbon dioxide emissions. The system includes five parts: a coal-fired power generation unit carbon emission accounting subsystem, a coal-fired power generation unit carbon emission data and unit operating load fitting subsystem, a coal-fired power generation unit pollutant and unit operating load fitting subsystem, a coal-fired power plant pollution reduction and carbon reduction synergy effect evaluation subsystem, and a coal-fired power plant unit load optimization subsystem. The embodiment of the present invention can effectively improve the overall pollution reduction and carbon reduction synergy level of coal-fired power plants by optimizing and adjusting the load distribution plan of coal-fired power plant units.

[0048] An embodiment of the present invention proposes a pollution reduction and carbon reduction synergistic effect evaluation system based on the load distribution optimization strategy of a coal-fired power plant, including: a coal-fired power generation unit carbon emission accounting subsystem, a coal-fired power generation unit carbon emission data and unit operating load fitting subsystem, a coal-fired power generation unit pollutant and unit operating load fitting subsystem, a coal-fired power plant pollution reduction and carbon reduction synergistic effect evaluation subsystem, and a coal-fired power plant unit load optimization subsystem.

[0049] In view of the fact that the production of the coal-fired power generation industry needs to meet the grid load instruction requirements, and the start and stop of the units follow the overall grid control requirements, the embodiment of the present invention is applicable to the case where the number of starting units in the power plant is greater than or equal to 2, and the units are operating at normal operating load; when the units in the power plant generally face grid peak regulation, there is no demand for unit load distribution optimization during this time period.

[0050] To calculate the basic data required according to the embodiment of the present invention, the power plant needs to count the hourly unit operating load, hourly unit coal consumption, corresponding coal quality test reports and hourly unit atmospheric pollutant emissions of its own units.

[0051] Since the combustion of coal and other raw materials in the coal-fired power generation process contributes 80% of the overall carbon emissions of the unit operation, in the embodiment of the present invention, the carbon emissions calculated based on the hourly coal consumption and coal quality information of the coal-fired unit are used as the overall carbon emissions of the unit.

[0052] The pollutants involved in the embodiments of the present invention specifically refer to typical atmospheric pollutants from coal-fired power plants, including SO2, NO X As well as particulate matter, the relevant pollutant concentrations and flue gas flow data can be obtained through online monitoring equipment in the coal-fired power generation industry, and the total hourly emissions of pollutants can be obtained after conversion.

[0053] 1. The carbon emission accounting subsystem of coal-fired power generation units is used to calculate the carbon emissions of coal-fired power generation units based on the coal quality and coal consumption data. The calculation formula is as follows:

[0054]

[0055] In the formula, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, in kg / MWh; B i,t represents the coal consumption per unit of power generation of the i-th unit of a coal-fired power plant during period t, in kg / MWh; FC i,t represents the coal consumption used by the i-th unit of a coal-fired power plant during period t, in tons; C ar,i,t It indicates the carbon content of the base element received by the i-th unit of the coal-fired power plant in the period t, in tC / t; i,t It represents the carbon oxidation rate of the i-th unit of a coal-fired power plant during period t, in %.

[0056] 2. The subsystem for fitting carbon emission data of coal-fired power generation units and unit operating load is used to fit the hourly carbon emission data of coal-fired power plant units with the corresponding unit operating load. According to existing studies, the carbon emission level of coal-fired power generation units and their operating load are in a quadratic function relationship, as shown in the following expression:

[0057] Carbon = F(P) (2);

[0058]

[0059] In the formula, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, in kg / MWh; P i,t represents the operating load of the i-th unit of a coal-fired power plant during period t, in MW; a i represents the quadratic coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load; b i represents the linear coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load; c i It represents the constant term coefficient of the fitting function between the carbon emission level of the i-th unit in a coal-fired power plant and its operating load.

[0060] 3. The coal-fired power generation unit pollutant and unit operating load fitting subsystem is used to fit the hourly pollutants and unit operating load of coal-fired power plant units. Similar to the coal-fired power generation unit carbon emission data and unit operating load fitting subsystem, the pollutant emission level of coal-fired power generation units is closely related to the real-time load of the unit. The fitting function is as follows:

[0061]

[0062] In the formula, Pollution i,t represents the pollutant emission of the i-th unit of a coal-fired power plant during period t, in kg; P i,t represents the operating load of the i-th unit of the coal-fired power plant during period t, in MW; α i represents the quadratic coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load; β i represents the linear coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load; γ i It represents the constant term coefficient of the fitting function between the pollutant emission level of the i-th unit in a coal-fired power plant and its operating load.

[0063] 4. The coal-fired power plant pollution reduction and carbon reduction synergistic effect assessment subsystem includes the coal-fired power plant pollution reduction and carbon reduction synergistic effect calculation system module, the carbon pollution data preprocessing calculation module and the synergy index calculation module.

[0064] Among them, the coal-fired power plant pollution reduction and carbon reduction synergy effect calculation system module is used to establish a coal-fired power plant pollution reduction and carbon reduction synergy index calculation system, comprehensively considering factors such as enterprise pollutant emissions and CO2 emissions, and evaluating the pollution reduction and carbon reduction synergy index through multi-dimensional indicators. Two secondary indicators, pollutant emission changes and CO2 emission changes, are set, and the total CO2 emissions, CO2 emission intensity, pollutant emissions, and pollutant emission intensity are used as the third-level indicators under the secondary indicators. Taking SO2 as an example, the calculation system is constructed as shown in Table 1:

[0065] Table 1 Calculation system of SO2-CO2 pollution reduction and carbon reduction synergy index of coal-fired power plants

[0066]

[0067] The carbon pollution data preprocessing calculation module is used to standardize the hourly carbon emission data and pollutant data of coal-fired power plants. It uses min-max standardization to perform linear transformation on the original data, mainly including the homogenization and dimensionless processing of the original indicators. The indicators in the indicator system may have the same trend of change. For example, for some indicators, the larger the value, the better the situation of the research object, which is called a positive indicator and is standardized using formula (5); otherwise, it is called a negative indicator and is standardized using formula (6). The standardization formula is as follows:

[0068]

[0069] Where U i represents the value of the corresponding index of the i-th unit of the coal-fired power plant after data standardization; X ik represents the kth index of the i-th unit of a coal-fired power plant; β k,maxrepresents the maximum value of the kth index of the coal-fired power plant; α k,min represents the minimum value of the kth index of the coal-fired power plant; X k,t Represents the standardized value of the kth indicator of a coal-fired power plant at time t.

[0070] The synergy index calculation module is used to calculate the pollution reduction and carbon reduction synergy index of coal-fired power plants according to the pollution reduction and carbon reduction synergy index calculation system of coal-fired power plants. The calculation formula is as follows:

[0071]

[0072] Where, Synergy Index t represents the pollution reduction and carbon reduction synergy index of coal-fired power plants in period t; U i represents the value of the corresponding indicator of the i-th unit in the coal-fired power plant after data standardization; m represents the number of units in the coal-fired power plant; n represents the number of indicators used to calculate the pollution reduction and carbon reduction synergy index for the i-th unit in the coal-fired power plant, that is, the number of three-level indicators constructed by the calculation system; X k,i It represents the standardized value of the kth indicator of the coal-fired power plant at time i.

[0073] 5. The coal-fired power plant unit load optimization subsystem uses a particle swarm algorithm to perform multi-objective optimization on the load distribution plan of the coal-fired power plant. The multi-objective optimization algorithm is constructed with the minimization of the total pollutants and total carbon emissions of the coal-fired power plant as the core goal and the total load balance of the power plant and the upper and lower limits of the unit output as the core constraints. The model construction is as follows:

[0074]

[0075] In the formula, Carbon i represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant, in kg / MWh; Pollution i represents the pollutant emission of the i-th unit of a coal-fired power plant, in kg; P i represents the operating load of the i-th unit of a coal-fired power plant, in MW; a i , b i 、c i They represent the quadratic term, linear term and constant term in the carbon emission fitting curve of the i-th unit of a coal-fired power plant respectively; α i , β i , γ i They represent the quadratic term, linear term and constant term in the pollutant fitting curve of the i-th unit of the coal-fired power plant respectively; P0 represents the total load demand of the coal-fired power plant, in MW; P imax represents the rated power of the i-th unit of the coal-fired power plant, in MW; P imin Represents the minimum output of the i-th unit of a coal-fired power plant, in MW.

[0076] Method Embodiment

[0077] According to an embodiment of the present invention, a method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution is provided. Figure 2 is a flow chart of a method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution according to an embodiment of the present invention. Figure 2 As shown, the pollution reduction and carbon reduction synergistic effect evaluation method for optimizing load distribution according to an embodiment of the present invention specifically includes:

[0078] Step S201, calculating the carbon emissions of the coal-fired power generation unit through the carbon emission calculation subsystem;

[0079] Step S202, fitting the carbon emission of the coal-fired power generation unit with the operating load of the corresponding unit through the carbon emission and operating load fitting subsystem to obtain carbon emission data;

[0080] Step S203, fitting the pollutant emission of the coal-fired power generation unit with the operating load of the corresponding unit through the pollutant and operating load fitting subsystem to obtain pollutant data;

[0081] Step S204, evaluating the pollution reduction and carbon reduction synergy effect of the coal-fired power plant according to the carbon emission data and the pollutant data through the pollution reduction and carbon reduction synergy effect evaluation subsystem;

[0082] The method further comprises:

[0083] A multi-objective optimization model with the total load balance of the coal-fired power plant and the upper and lower limits of the output of the generator set as constraints is constructed by the load distribution optimization subsystem based on the evaluation results and the particle swarm algorithm is used, and the load distribution of the coal-fired power plant is optimized by the multi-objective optimization model shown in Formula 1;

[0084]

[0085] Among them, Carbon i represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant, Pollution i represents the pollutant emission of the i-th unit in a coal-fired power plant, P i represents the operating load of the i-th unit in a coal-fired power plant, a i , b i 、c i They represent the quadratic term, linear term and constant term in the carbon emission fitting curve of the i-th unit of a coal-fired power plant, respectively. i , β i , γ i They represent the quadratic term, linear term and constant term in the pollutant fitting curve of the i-th unit of the coal-fired power plant, P0 represents the total load demand of the coal-fired power plant, P imaxrepresents the rated power of the i-th unit in a coal-fired power plant, P imin Represents the minimum output of the i-th unit of a coal-fired power plant.

[0086] The embodiment of the present invention is a method embodiment corresponding to the above-mentioned system embodiment. The specific operation of each step can be understood by referring to the description of the system embodiment, which will not be repeated here.

[0087] To sum up, the embodiments of the present invention can be used in the field of environmental data analysis in the coal-fired power generation industry. It is based on the hourly operating pollutant and carbon emission level data of the coal-fired power generation enterprises in the region, and is used to evaluate the coordinated emission reduction effect of coal-fired power plants in reducing pollution and carbon emissions. It also optimizes and adjusts the load distribution plan of coal-fired power plant units through a multi-objective optimization algorithm, thereby helping coal-fired power plants to improve their coordinated effects of reducing pollution and carbon emissions.

[0088] Device Example 1

[0089] An embodiment of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps described in the method embodiment when executed by the processor.

[0090] Device Example 2

[0091] An embodiment of the present invention provides a computer-readable storage medium, on which a program for implementing information transmission is stored. When the program is executed by a processor, the steps described in the method embodiment are implemented.

[0092] The computer-readable storage medium in this embodiment includes, but is not limited to, ROM, RAM, magnetic disk or optical disk, etc.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pollution reduction and carbon reduction synergistic effect evaluation system for optimizing load distribution, characterized in that: It includes a carbon emission accounting subsystem, a carbon emission and operation load fitting subsystem, a pollutant and operation load fitting subsystem and a pollution reduction and carbon reduction synergy effect assessment subsystem which are connected in sequence; The carbon emission accounting subsystem is used to calculate the carbon emissions of coal-fired power generation units; The carbon emission and operating load fitting subsystem is used to fit the carbon emission of the coal-fired power generation unit with the operating load of the corresponding unit to obtain carbon emission data; The pollutant and operating load fitting subsystem is used to fit the pollutant emissions of the coal-fired power generation units with the operating loads of the corresponding units to obtain pollutant data; The pollution reduction and carbon reduction synergistic effect evaluation subsystem is used to evaluate the pollution reduction and carbon reduction synergistic effect of coal-fired power plants based on carbon emission data and pollutant data.

2. The system according to claim 1, characterized in that The system further comprises: A load distribution optimization subsystem is connected to the pollution reduction and carbon reduction synergistic effect evaluation subsystem, and is used to construct a multi-objective optimization model with the total load balance of the coal-fired power plant and the upper and lower limits of the output of the generator set as constraints based on the evaluation results by using a particle swarm algorithm, and optimize the load distribution of the coal-fired power plant through the multi-objective optimization model shown in Formula 1; Among them, Carbon i represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant, Pollution i represents the pollutant emission of the i-th unit in a coal-fired power plant, P i represents the operating load of the i-th unit in a coal-fired power plant, a i 、b i 、c i They represent the quadratic term, linear term and constant term in the carbon emission fitting curve of the i-th unit of a coal-fired power plant, respectively. i , β i , γ i They represent the quadratic term, linear term and constant term in the pollutant fitting curve of the i-th unit of the coal-fired power plant, P0 represents the total load demand of the coal-fired power plant, P imax represents the rated power of the i-th unit in a coal-fired power plant, P imin Represents the minimum output of the i-th unit of a coal-fired power plant.

3. The system according to claim 1, characterized in that The carbon emission accounting subsystem is specifically used for: The carbon emissions of coal-fired power generation units are calculated using Formula 2 based on the coal quality and coal consumption data of the coal-fired power generation units; Among them, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, B i,t represents the coal consumption per unit of power generation of the i-th unit in a coal-fired power plant during period t, FC i,t represents the coal consumption of the i-th unit of a coal-fired power plant during period t, C ar,i,t It indicates the carbon content of the base element received by the i-th unit of the coal-fired power plant during the period t, OF i,t It represents the carbon oxidation rate of the i-th unit of a coal-fired power plant during period t.

4. The system according to claim 1, characterized in that The carbon emission and operation load fitting subsystem is specifically used for: The hourly carbon emissions of coal-fired power generation units are fitted with the operating load of the corresponding units, and the carbon emission data are calculated using the fitting relationship shown in Formula 3; Among them, Carbon i,t represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant during period t, P i,t represents the operating load of the i-th unit of a coal-fired power plant during period t, a i represents the quadratic coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load, b i represents the linear coefficient of the fitting function between the carbon emission level of the i-th unit of a coal-fired power plant and its operating load, c i It represents the constant coefficient of the fitting function between the carbon emission level of the i-th unit in a coal-fired power plant and its operating load, and n represents the total number of units.

5. The system according to claim 1, characterized in that The pollutant and operation load fitting subsystem is specifically used for: The hourly pollutant emissions of coal-fired power generation units are fitted with the operating load of the corresponding units, and the pollutant data are calculated according to the fitting relationship shown in Formula 4; Among them, Pollution i,t represents the pollutant emissions of the i-th unit of a coal-fired power plant during period t, P i,t represents the operating load of the i-th unit of a coal-fired power plant during period t, α i represents the quadratic coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load, β i represents the linear coefficient of the fitting function between the pollutant emission level of the i-th unit of a coal-fired power plant and its operating load, γ i It represents the constant term coefficient of the fitting function between the pollutant emission level of the i-th unit in a coal-fired power plant and its operating load.

6. The system according to claim 1, characterized in that The pollution reduction and carbon reduction synergistic effect evaluation subsystem includes a pollution reduction and carbon reduction synergistic effect calculation system module, a carbon pollution data preprocessing module and a synergistic index calculation module connected in sequence; The pollution reduction and carbon reduction synergy effect calculation system module is used to construct a pollution reduction and carbon reduction synergy index calculation system based on carbon emission data and pollutant data; The carbon pollution data preprocessing module is used to perform standardization processing on carbon emission data and pollutant data to obtain standardized carbon pollution data; The synergy index calculation module is used to calculate the pollution reduction and carbon reduction synergy index of the coal-fired power plant using Formula 5 according to the pollution reduction and carbon reduction synergy index calculation system and the standardized carbon pollution data; Among them, Synergy Index t represents the pollution reduction and carbon reduction synergy index of coal-fired power plants in period t, U i represents the value of the corresponding indicator of the i-th unit in the coal-fired power plant after data standardization, m represents the number of units in the coal-fired power plant, n represents the number of indicators used to calculate the pollution reduction and carbon reduction synergy index of the i-th unit in the coal-fired power plant, and X k,i It represents the standardized value of the kth indicator of the coal-fired power plant at time i.

7. A method for evaluating the synergistic effect of pollution reduction and carbon reduction for optimizing load distribution, characterized in that include: Calculate the carbon emissions of coal-fired power generation units through the carbon emission accounting subsystem; The carbon emission and operating load fitting subsystem is used to fit the carbon emission of coal-fired power generation units with the operating load of the corresponding units to obtain carbon emission data; The pollutant emissions of coal-fired power generation units are fitted with the operating loads of the corresponding units through the pollutant and operating load fitting subsystem to obtain pollutant data; The pollution reduction and carbon reduction synergy effect evaluation subsystem is used to evaluate the pollution reduction and carbon reduction synergy effect of coal-fired power plants based on carbon emission data and pollutant data.

8. The method according to claim 7, characterized in that The method further comprises: A multi-objective optimization model with the total load balance of the coal-fired power plant and the upper and lower limits of the output of the generator set as constraints is constructed by the load distribution optimization subsystem based on the evaluation results and the particle swarm algorithm is used, and the load distribution of the coal-fired power plant is optimized by the multi-objective optimization model shown in Formula 1; Among them, Carbon i represents the carbon emission per unit of electricity generated by the i-th unit of a coal-fired power plant, Pollution i represents the pollutant emission of the i-th unit in a coal-fired power plant, P i represents the operating load of the i-th unit in a coal-fired power plant, a i 、b i 、c i They represent the quadratic term, linear term and constant term in the carbon emission fitting curve of the i-th unit of a coal-fired power plant, respectively. i , β i , γ i They represent the quadratic term, linear term and constant term in the pollutant fitting curve of the i-th unit of the coal-fired power plant, P0 represents the total load demand of the coal-fired power plant, P imax represents the rated power of the i-th unit in a coal-fired power plant, P imin Represents the minimum output of the i-th unit of a coal-fired power plant.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the pollution reduction and carbon reduction synergy effect assessment method for optimizing load distribution as described in any one of claims 7 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an implementation program for information transmission, and when the program is executed by the processor, the steps of the pollution reduction and carbon reduction synergy effect assessment method for optimizing load distribution as described in any one of claims 7-8 are implemented.

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