Method and apparatus for calculating carbon emissions from thermal power generation units

Abstract

The present invention provides a method and device for calculating carbon emissions of a thermal power unit, which belongs to the technical field of calculating carbon emissions of a thermal power unit. The calculation method includes the steps of obtaining a total operating load section of a thermal power unit within a predetermined operating period, determining all characteristic load points of the thermal power unit within the total operating load section based on the total operating load section of the thermal power unit and a preset basic load point, determining actual carbon emissions of each characteristic load point based on the actual burnout carbon content of the combustion coal of the thermal power unit and the actual characteristic energy consumption of each characteristic load point, and determining the actual total carbon emissions of the thermal power unit within the predetermined operating period based on the actual carbon emissions of all characteristic load points. The method has the advantage of being able to accurately calculate carbon emissions and providing reliable data support for the thermal power unit.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission calculation of thermal power generation units, and specifically relates to a calculation method for carbon emissions of thermal power generation units, a calculation device for carbon emissions of thermal power generation units, an electronic device, and a readable storage medium.

Background Art

[0002] Even now, the proportion of electrical energy generated by thermal power generation in household and industrial electricity consumption is still high, and the investigation of carbon emissions from thermal power generation units has great significance. Generally, carbon emissions are measured using an actuarial method and a continuous emission monitoring system method. The continuous emission monitoring system method already has a certain foundation, but the existing technology depends on the principle of "mainly actuarial and supplemented by monitoring". At the current stage, the power generation industry adopts an actuarial method to quantify carbon emissions. Among them, calculating the carbon emissions of thermal power generation units based on energy consumption is one of the actuarial methods.

[0003] While there are many research methods and analyses on the energy consumption of conventional coal-fired power generation units, and the calculation methods are mature with many achievements, there is basically no agreement on the calculation method for energy consumption. Direct balance statistical methods have large calculation errors, and it is difficult to avoid or reduce errors by better means or methods, so indirect balance calculation methods are usually used to determine and evaluate the energy consumption of units. Indirect balance calculation methods calculate the test coal consumption under a load by determining the steam turbine heat consumption, boiler efficiency, in-house efficiency, and pipeline efficiency under a certain load condition through performance tests, and then obtain the corrected energy consumption, i.e., the standard energy consumption of the unit, after correcting the boundary conditions to the design boundary conditions through correction calculations. Based on energy consumption studies, the operating energy consumption at a specific load point of the unit is obtained by calculating the influence coefficient of energy consumption caused by the deviation between actual boundary conditions and design values, the carbon emission result of the thermal power generation unit at this load is obtained, and the carbon emissions of the unit over a specific period are obtained by weighted statistics. However, existing calculation methods do not take into account the difference between daily operating values ​​and design values ​​for parameters, nor the actual carbon content of the burning coal at the time of complete combustion, resulting in inaccurate calculations of carbon emissions. [Overview of the project] [Problems that the invention aims to solve]

[0004] The object of the embodiments of the present invention is to provide a method and apparatus for calculating carbon emissions from a thermal power generation unit, thereby at least solving the problem of inaccurate carbon emission calculations due to the lack of consideration for the difference between daily operating values ​​and design values ​​of parameters, as well as the actual carbon content at the time of complete combustion of the burning coal. [Means for solving the problem]

[0005] To achieve the above objectives, a first aspect of the present invention is: The steps include obtaining the total operating load interval of a thermal power generation unit within a predetermined operating period, The steps include determining all characteristic load points of the thermal power generation unit within the total operating load section based on the total operating load section of the thermal power generation unit and a predetermined basic load point, The steps include determining the actual carbon emissions at each characteristic load point based on the actual carbon content of the burning coal in the thermal power generation unit at the time of complete combustion and the actual characteristic energy consumption at each characteristic load point, A method for calculating carbon emissions from a thermal power generation unit is provided, comprising the step of determining the actual total carbon emissions of the thermal power generation unit during a predetermined operating period based on the actual carbon emissions of all characteristic load points.

[0006] The optional step of determining all characteristic load points of a thermal power generation unit within a total operating load section, based on the total operating load section of the thermal power generation unit and a preset basic load point, is: If the minimum operating load within the total operating load section is equal to or greater than the preset basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to the first preset interval, other load points other than those corresponding to the minimum and maximum operating loads are sequentially determined within the total operating load section. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the maximum operating load within the aforementioned total operating load section is less than or equal to the predetermined basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points within the total operating load section, excluding the load points corresponding to the minimum and maximum operating loads, are determined in sequence. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the aforementioned preset basic load point is within the total operating load section, The pre-set basic load point, the minimum operating load within the total operating load section, and the maximum operating load are all determined as load points. Starting from the aforementioned preset basic load point, and according to a first preset interval, other load points other than the basic load point and the load point corresponding to the maximum operating load are sequentially determined between the preset basic load point and the load point corresponding to the maximum operating load within the total operating load section. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points other than the basic load point and the load point corresponding to the minimum operating load are determined between the preset basic load point and the load point corresponding to the minimum operating load within the total operating load section. The process includes the step of determining the average load of two adjacent load points within the total operating load section as a characteristic load point.

[0007] Optionally, the step of determining the actual carbon emissions at each characteristic load point based on the actual carbon content at the time of complete combustion of the burning coal in the thermal power generation unit and the actual characteristic energy consumption at each characteristic load point is: The process involves obtaining the in-house efficiency, boiler efficiency, and steam turbine thermal efficiency for each characteristic load point, and obtaining the carbon content of the burning coal in the thermal power generation unit, the calorific value of the burning coal, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion. A step of determining the actual carbon content of the burning coal at the time of complete combustion, based on the carbon content of the burning coal in the thermal power generation unit, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion, The process involves determining the actual characteristic energy consumption at each characteristic load point based on the calorific value of the burning coal, the in-house rate at characteristic load points, the boiler efficiency, and the steam turbine thermal efficiency. The process includes the step of determining the actual carbon emissions for each characteristic load point based on the actual characteristic energy consumption and the actual carbon content of the burning coal at the time of complete combustion for each characteristic load point.

[0008] Optionally, the step of determining the actual carbon content at burnout of the combustion coal based on the carbon content of the combustion coal, the ash content of the combustion coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion in a thermal power generation unit is including the step of calculating the actual carbon content at burnout of the combustion coal according to the following calculation formula,

Number

[0009] Optionally, the step of determining the actual characteristic energy consumption at each characteristic load point based on the calorific value of the combustion coal, the in-plant rate at the characteristic load point, the boiler efficiency, and the steam turbine thermal efficiency is including the step of calculating the actual characteristic energy consumption at the characteristic load point according to the following calculation formula,

Number

Number

number

[0010] The optional step of determining the actual carbon emissions for each characteristic load point based on the actual characteristic energy consumption and the actual carbon content of the burning coal at burnout is as follows: The following steps include calculating the actual carbon emissions at characteristic load points using the following formula:

number

[0011] The optional step of determining the actual total carbon emissions of the thermal power generation unit during the predetermined operating period based on the actual carbon emissions of all characteristic load points includes the step of calculating the actual total carbon emissions of the thermal power generation unit during the predetermined operating period using the following formula:

number

[0012] A second aspect of the present invention is: A data acquisition module that acquires the total operating load interval of a thermal power generation unit within a predetermined operating period, A feature load point determination module that determines all feature load points of a thermal power generation unit within its total operating load section based on the total operating load section of the thermal power generation unit and a preset basic load point, A feature load point carbon emission determination module that determines the actual carbon emissions of each feature load point based on the actual carbon content at the time of complete combustion of the burning coal in the thermal power generation unit and the actual feature energy consumption of each feature load point, The present invention provides a carbon emission calculation device for a thermal power generation unit, which includes an actual total carbon emission determination module that determines the actual total carbon emissions of the thermal power generation unit during a predetermined operating period based on the actual carbon emissions of all characteristic load points.

[0013] A third aspect of the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor, upon execution of the computer program, realizes the method for calculating the carbon emissions of the thermal power generation unit described above.

[0014] In another aspect, the present invention provides a machine-readable storage medium that stores instructions for a machine to perform the carbon emission calculation method of the thermal power generation unit described above. [Effects of the Invention]

[0015] According to the above technical proposal, the beneficial effects of the present invention are as follows:

[0016] This proposed technology divides characteristic load points within the total operating load interval based on the actual operating load of the thermal power generation unit. Considering the difference between daily operation and design values, it calculates the actual characteristic energy consumption at the characteristic load points and the actual carbon content at the time of complete combustion of the burning coal in the thermal power generation unit. As a result, it calculates the actual carbon emissions of the thermal power generation unit. This results in smaller errors, more accurate calculations, and reliable data support for achieving carbon peak-out and carbon neutrality for coal-fired power generation units.

[0017] Other features and advantages of embodiments of the present invention will be described in detail in the following sections on specific embodiments. [Brief explanation of the drawing]

[0018] The drawings are provided to provide a further understanding of embodiments of the present invention, and constitute part of this specification, and are intended to illustrate embodiments of the present invention together with the following specific embodiments, but are not limited to embodiments of the present invention. [Figure 1] This is a flowchart of the method for calculating carbon emissions from a thermal power generation unit according to the present invention. [Figure 2] This is a flowchart of the actual carbon emissions at characteristic load points according to the present invention. [Figure 3] This is a schematic diagram of the structure of a carbon emission calculation device for a thermal power generation unit according to the present invention. [Modes for carrying out the invention]

[0019] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for the purpose of describing and illustrating the present invention and are not intended to limit the present invention.

[0020] Figure 1 is a flowchart of the method for calculating carbon emissions from a thermal power generation unit according to the present invention, Figure 2 is a flowchart of the actual carbon emissions from characteristic load points according to the present invention, and Figure 3 is a schematic diagram of the structure of the carbon emission calculation device for a thermal power generation unit according to the present invention. Example 1

[0021] As shown in Figure 1, embodiments of the present invention provide a method for calculating carbon emissions from a thermal power generation unit, comprising the following steps 1 to 4.

[0022] Step 1: Obtain the total operating load interval of the thermal power generation unit within a predetermined operating period.

[0023] Step 2: Based on the total operating load section of the thermal power generation unit and the pre-set basic load points, determine all characteristic load points of the thermal power generation unit within the total operating load section.

[0024] Step 3: Determine the actual carbon emissions for each characteristic load point based on the actual carbon content of the burning coal in the thermal power generation unit at the time of complete combustion and the actual characteristic energy consumption at each characteristic load point.

[0025] Step 4: Based on the actual carbon emissions of all characteristic load points, determine the actual total carbon emissions of the thermal power generation unit during the predetermined operating period.

[0026] Specifically, during the operation of a thermal power generation unit within a predetermined operating period, its operating load typically changes linearly; that is, as operating time progresses, the operating load increases or decreases, and the operating load does not jump over time. Step 102, which determines all characteristic load points of the thermal power generation unit within the total operating load section based on the total operating load section of the thermal power generation unit and a preset basic load point, can be understood as each characteristic load point corresponding to one sub-load section of the thermal power generation unit, and all sub-load sections being combined to obtain the complete total operating load section.

[0027] Furthermore, the step of determining all characteristic load points of the thermal power generation unit within the total operating load section, based on the total operating load section of the thermal power generation unit and the preset basic load points, If the minimum operating load within the total operating load section is equal to or greater than the preset basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to the first preset interval, other load points other than those corresponding to the minimum and maximum operating loads are sequentially determined within the total operating load section. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the maximum operating load within the aforementioned total operating load section is less than or equal to the predetermined basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points within the total operating load section, excluding the load points corresponding to the minimum and maximum operating loads, are determined in sequence. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the aforementioned preset basic load point is within the total operating load section, The pre-set basic load point, the minimum operating load within the total operating load section, and the maximum operating load are all determined as load points. Starting from the aforementioned preset basic load point, and according to a first preset interval, other load points other than the basic load point and the load point corresponding to the maximum operating load are sequentially determined between the preset basic load point and the load point corresponding to the maximum operating load within the total operating load section. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points other than the basic load point and the load point corresponding to the minimum operating load are determined between the preset basic load point and the load point corresponding to the minimum operating load within the total operating load section. The process includes the step of determining the average load of two adjacent load points within the total operating load section as a characteristic load point.

[0028] Specifically, in this embodiment, we will explain using the example where a 55% load is the preset basic load point, the first preset amount is set to 10% of the reference test load, and the total operating load section of the thermal power generation unit is 60% to 90%. In this case, if the minimum operating load of 60% is 55% or higher than the basic load point, first, the minimum operating load of 60% and the maximum operating load of 90% are determined as load points, and the maximum load p of actual operation is determined based on the preset reference load point. max Until this is achieved, determine one load point for every 10% increase, and set the minimum load p min From the highest load p max All load points p within the above load interval m Obtain such a load point p. m This includes operating loads of 60%, 65%, 75%, 85%, and 90%. (p m +p m+1 Using ) / 2 as the characteristic load, all characteristic load points in the total operating load section are determined. These characteristic load points include characteristic load point 62.5%, characteristic load point 70%, characteristic load point 80%, and characteristic load point 87.5%. The steam turbine heat consumption (H) corresponding to these is determined. Pm +H Pm+1 ) / 2, boiler efficiency (η Pm +η Pm+1 ) / 2, local rate (L Pm +L Pm+1 ) / 2 is p m from p m+1 Features corresponding to the load section: Steam turbine heat consumption H Pm Features boiler efficiency η Pm , characteristic in-house rate L Pm Represents p m from p m+1 The average value of the operating parameters in the load interval represents the operating parameters under the corresponding characteristic load.

[0029] Specifically, in this embodiment, we will explain using the example where a 55% load is the preset basic load point, the first preset amount is set to 5% of the reference test load, and the total operating load section of the thermal power generation unit is 30% to 50%. In this case, if the maximum operating load of 50% is less than the basic load point of 55%, first, the minimum operating load of 30% and the maximum operating load of 50% are determined as load points, and the maximum load p is set based on the preset reference load point. max From minimum load p min All load points p within the load interval m Determine one load point for every 5% increase until you obtain the desired result. These load points include operating load 50%, operating load 45%, operating load 40%, and operating load 35%. Determine all feature load points within the total operating load interval, and (p n +p n-1 The feature load is defined as ) / 2, and this feature load includes feature load points 47.5%, 42.5%, and 37.5%. The steam turbine heat consumption corresponding to these is (H Pn +H Pn-1 ) / 2, boiler efficiency (η Pn +η Pn-1 ) / 2, local rate (L Pn +L Pn-1 ) / 2 is p n-1 from p n Features corresponding to the load section: Steam turbine heat consumption H Pn Features boiler efficiency η Pn , characteristic in-house rate L Pn Represents p n-1 from p n The average value of the load interval operating parameters represents the operating parameters at the corresponding characteristic load.

[0030] If the aforementioned pre-set basic load point falls within the total operating load section of the thermal power generation unit, the method for determining the characteristic load point is the same as the method described above, and therefore will not be explained in detail here.

[0031] Furthermore, as shown in Figure 2, the step of determining the actual carbon emissions at each characteristic load point based on the actual carbon content of the burning coal in the thermal power generation unit at the time of complete combustion and the actual characteristic energy consumption at each characteristic load point includes the following steps 301 to 304.

[0032] Step 301: Obtain the in-house rate, boiler efficiency, and steam turbine thermal efficiency for each characteristic load point, and obtain the carbon content of the burning coal in the thermal power generation unit, the calorific value of the burning coal, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion.

[0033] Step 302: Determine the actual carbon content of the burning coal at the time of complete combustion based on the carbon content of the burning coal in the thermal power generation unit, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion.

[0034] Step 303: Determine the actual characteristic energy consumption at each characteristic load point based on the calorific value of the burning coal, the in-house rate at the characteristic load point, the boiler efficiency, and the steam turbine thermal efficiency.

[0035] Step 304: Determine the actual carbon emissions for each characteristic load point based on the actual characteristic energy consumption and the actual carbon content of the burning coal at burnout for each characteristic load point.

[0036] Furthermore, the step of determining the actual carbon content of the burning coal at the time of complete combustion, based on the carbon content of the burning coal in the thermal power generation unit, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion, is as follows: The following steps include calculating the actual carbon content of burning coal at the time of complete combustion using the following formula:

number

[0037] Furthermore, the step of determining the actual characteristic energy consumption at each characteristic load point based on the calorific value of the burning coal, the in-house rate at characteristic load points, the boiler efficiency, and the steam turbine thermal efficiency is as follows: The following steps include calculating the actual feature energy consumption of a feature loading point using the following formula:

number

number

number

[0038] Specifically, in this embodiment, from 55% to the maximum load p max All feature load points p within the load interval mFeatures include steam turbine heat consumption, boiler efficiency, and calculation of internal load from 55% to minimum load p min All feature load points p within the total operating load section m The calculations for characteristic steam turbine heat consumption, characteristic boiler efficiency, and characteristic in-house ratio are performed as described above.

[0039] The coefficients of influence of the difference between daily operation and design values ​​on steam turbine heat consumption, boiler efficiency, pipeline efficiency, and in-house efficiency are determined as follows.

[0040] 1. Factors influencing steam turbine heat consumption include elements such as main steam pressure, main steam temperature, reheat steam temperature, reheat steam pressure loss, and unit back pressure. Specifically, this includes: a specific element α n The coefficient of influence of heat consumption is calculated using the following formula.

number

number

number

[0041] 2. Factors influencing boiler efficiency include sub-factors such as the inlet flue gas temperature of the air preheater, the outlet flue gas temperature of the air preheater, the inlet air temperature of the air preheater, and the results of the analysis of combustion coal elements. Specific subelement β nThe coefficient of influence on boiler efficiency is calculated using the following formula.

number

number

number

[0042] 3. Factors influencing pipeline efficiency include sub-factors such as system leaks, boiler soot blowers, condenser water replenishment, plant heating, and pipeline heat dissipation. Specific subelement χ n The coefficient of influence on pipeline efficiency is calculated using a formula.

number

number

number

[0043] 4. The influencing coefficient factors for the in-house rate include sub-elements, which are changes in the operating methods of each auxiliary machine. Specific subelement δ n The coefficient of influence of this factor on the in-house rate is calculated using the following formula.

number

number

number

number

[0044] Furthermore, the step of determining the actual total carbon emissions of the thermal power generation unit during the predetermined operating period based on the actual carbon emissions of all characteristic load points includes the step of calculating the actual total carbon emissions of the thermal power generation unit during the predetermined operating period using the following formula:

number

[0045] This embodiment proposes a calculation method for the carbon emissions of a thermal power generation unit based on energy consumption. According to the correction results of the conventional performance test, based on the daily operation and the difference from the design value, the operating energy consumption of the actual characteristic load in the full load interval is calculated. Based on this, considering the actual carbon content at the time of complete combustion of the coal being burned, the carbon emissions of the unit at various characteristic loads are calculated, and the total carbon emissions over the operation period are calculated. Utilizing the research results on the energy consumption of the thermal power generation unit, the actual energy consumption calculated for the unit is made closer to the actual consumption, thereby calculating the actual carbon emissions of the thermal power generation unit and providing reliable data support for achieving carbon peak-out and carbon neutrality of the coal-fired power generation unit. Also, in this process, the energy consumption and carbon emissions at various operating load states are obtained, providing a research direction for carbon emission reduction. Embodiment 2

[0046] As shown in FIG. 3, the embodiment of the present invention includes a data acquisition module 10 that acquires the total operation load interval of the thermal power generation unit within a predetermined operation period, a characteristic load point determination module 20 that determines all the characteristic load points of the thermal power generation unit within the total operation load interval based on the total operation load interval of the thermal power generation unit and a preset basic load point, a characteristic load point carbon emission determination module 30 that determines the actual carbon emissions at each characteristic load point based on the actual carbon content at the time of complete combustion of the coal burned by the thermal power generation unit and the actual characteristic energy consumption at each characteristic load point, The present invention provides a carbon emission calculation device for a thermal power generation unit, which includes an actual total carbon emission determination module 40 that determines the actual total carbon emissions of the thermal power generation unit during a predetermined operating period based on the actual carbon emissions of all characteristic load points. Example 3

[0047] Embodiments of the present invention also provide an electronic device comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor, upon executing the computer program, realizes the method for calculating the carbon emissions of the thermal power generation unit described above. Example 4

[0048] Embodiments of the present invention also provide a readable storage medium that stores instructions for a machine to perform the above-mentioned method for calculating the carbon emissions of a thermal power generation unit. Example 5

[0049] In this example, a 300 MW subcritical unit was used as an example, under a specific preset coal type, with an operating period of 24 hours and an operating load between 45% and 100% of the rated load. Performance tests were conducted on the unit, testing the steam turbine heat consumption, boiler efficiency, and in-house rate corresponding to a pipeline efficiency of 0.985 at loads of 45%, 50%, 55%, 65%, 75%, 85%, 95%, and 100%, and the results are shown in Table 1 below.

[0050] Unit test results [Table 1]

[0051] If the pipeline efficiency is set to a constant of 0.985, then all characteristic loads and their corresponding steam turbine heat consumption, boiler efficiency, in-house rate, and power supply energy consumption B during the operating period will be calculated. p This is shown in Table 2 below.

[0052] Results of each metric in feature loading [Table 2]

[0053] In this total operating load section, each parameter deviates from the design value. The influence coefficients for steam turbine heat consumption, boiler furnace efficiency, in-house efficiency, pipeline efficiency, and the calculated results for actual characteristic energy consumption are shown in Table 3 below.

[0054] Influence coefficients and actual feature energy consumption corresponding to various feature load points [Table 3]

[0055] The actual carbon content of burning coal at complete combustion is calculated, and the actual carbon emissions at characteristic loading points are obtained. These actual carbon emissions are shown in Table 4 below.

[0056] Carbon emissions corresponding to various characteristic load points [Table 4]

[0057] By representing the actual power generation in a load section with characteristic loads, the actual carbon emissions for this load section are obtained. The results are shown in Table 5 below.

[0058] Actual carbon emissions across various load intervals [Table 5]

[0059] The carbon emission results for each load section are accumulated to obtain the total carbon emissions for the entire operating period. The carbon emissions for this unit during a 24-hour operating period are 391,629.80 tons.

[0060] Those skilled in the art will understand that all or part of the steps in a method for realizing the above embodiments can be achieved by instructing the relevant hardware with a program stored on a storage medium that includes several instructions for causing a microcontroller, chip, or processor to perform all or part of the steps in the methods described in each embodiment of the present invention. On the other hand, the storage medium includes various media capable of storing program code, such as USB flash disks, removable hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, and optical disks.

[0061] Although various embodiments of the present invention have been described in detail above with reference to the drawings, the embodiments of the present invention are not limited to the specific details of the embodiments described above. Within the scope of the technical concept of the embodiments of the present invention, several simple modifications are possible to the technical proposals of the embodiments of the present invention, and all of these simple modifications fall within the scope of protection of the embodiments of the present invention. Furthermore, each specific technical feature described in the above specific embodiments may be combined in any appropriate manner, as long as they do not contradict each other. To avoid unnecessary redundancy, various possible combinations of embodiments of the present invention will not be described separately.

[0062] Furthermore, any combination of the various different embodiments of the present invention is possible and should be considered as being within the scope of the embodiments of the present invention, as long as it does not contradict the spirit of the embodiments of the present invention. [Explanation of Symbols]

[0063] 10. Data acquisition module 20 Feature Load Point Determination Module 30 Feature Load Point Carbon Emission Determination Module 40. Actual Total Carbon Emissions Determination Module

Claims

1. A method for calculating carbon emissions from thermal power generation units, The steps include obtaining the total operating load interval of a thermal power generation unit within a predetermined operating period, The steps include determining all characteristic load points of the thermal power generation unit within the total operating load section based on the total operating load section of the thermal power generation unit and a predetermined basic load point, The steps include determining the actual carbon emissions at each characteristic load point based on the actual carbon content of the burning coal in the thermal power generation unit at the time of complete combustion and the actual characteristic energy consumption at each characteristic load point, The step of determining the actual total carbon emissions of the thermal power generation unit during a predetermined operating period, based on the actual carbon emissions of all characteristic load points, The step of determining the actual total carbon emissions of the thermal power generation unit during the predetermined operating period based on the actual carbon emissions of all characteristic load points is: The following steps include calculating the actual total carbon emissions of the thermal power generation unit during the predetermined operating period using the following formula: [Math 1] Here, C is the actual total carbon emissions of the thermal power generation unit during the predetermined operating period, n is the number of feature load points, Cpi is the actual carbon emissions of the i-th feature load point, and Wi is the amount of power generated in the operator load section corresponding to the i-th feature load point. The step of determining all characteristic load points of a thermal power generation unit within a total operating load section, based on the total operating load section of the thermal power generation unit and a predetermined basic load point, is: If the minimum operating load within the total operating load section is equal to or greater than the preset basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to the first preset interval, other load points within the total operating load section, excluding the load points corresponding to the minimum operating load and the maximum operating load, are determined in order. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the maximum operating load within the aforementioned total operating load section is less than or equal to the predetermined basic load point, Both the minimum and maximum operating loads within the total operating load section are determined as load points. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points other than those corresponding to the minimum and maximum operating loads are sequentially determined within the total operating load section. The steps include determining the average load of two adjacent load points within the total operating load section as a characteristic load point, If the aforementioned preset basic load point is within the total operating load section, The pre-set basic load point, the minimum operating load within the total operating load section, and the maximum operating load are all determined as load points. Starting from the aforementioned preset basic load point, and according to a first preset interval, other load points other than the basic load point and the load point corresponding to the maximum operating load are sequentially determined between the preset basic load point and the load point corresponding to the maximum operating load within the total operating load section. Starting from the aforementioned preset basic load point, and according to a second preset interval, other load points other than the basic load point and the load point corresponding to the minimum operating load are sequentially determined between the preset basic load point and the load point corresponding to the minimum operating load within the total operating load section. A method for calculating carbon emissions from a thermal power generation unit, comprising the step of determining the average load of two adjacent load points among all load points within the total operating load section as a characteristic load point.

2. The step of determining the actual carbon emissions at each characteristic load point based on the actual carbon content at the time of complete combustion of the burning coal in the thermal power generation unit and the actual characteristic energy consumption at each characteristic load point is: The process involves obtaining the in-house efficiency, boiler efficiency, and steam turbine thermal efficiency for each characteristic load point, and obtaining the carbon content of the burning coal in the thermal power generation unit, the calorific value of the burning coal, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion. A step of determining the actual carbon content of the burning coal at the time of complete combustion, based on the carbon content of the burning coal in the thermal power generation unit, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion, The process involves determining the actual characteristic energy consumption at each characteristic load point based on the calorific value of the burning coal, the in-house rate at characteristic load points, the boiler efficiency, and the steam turbine thermal efficiency. A method for calculating carbon emissions from a thermal power generation unit according to claim 1, comprising the step of determining the actual carbon emissions for each characteristic load point based on the actual characteristic energy consumption and the actual carbon content of the burning coal at the time of complete combustion for each characteristic load point.

3. The step of determining the actual carbon content of burning coal at complete combustion, based on the carbon content of the burning coal in the thermal power generation unit, the ash content of the burning coal, the carbon content of the fly ash after combustion, and the carbon content of the clinker after combustion, is: The following steps include calculating the actual carbon content of burning coal at the time of complete combustion using the following formula: [Math 2] The method for calculating carbon emissions from a thermal power generation unit according to claim 2, characterized in that, here, Cb is the actual carbon content of the burning coal at the time of complete combustion, Car is the carbon content of the burning coal, Aar is the ash content of the burning coal, Cf is the carbon content of the fly ash after combustion, and Cs is the carbon content of the clinker after combustion.

4. The step of determining the actual characteristic energy consumption at each characteristic load point based on the calorific value of the burning coal, the in-house rate at characteristic load points, the boiler efficiency, and the steam turbine thermal efficiency is as follows: The following steps include calculating the actual feature energy consumption of a feature loading point using the following formula: [Math 3] Here, B'p is the actual feature energy consumption at the feature load point, and Bp is the coal consumption for power supply at the feature load point. [Math 4] A method for calculating carbon emissions from a thermal power generation unit according to claim 2, wherein Hp is the thermal efficiency of the steam turbine under characteristic load, μ is the calorific value of the burning coal, ηp is the boiler efficiency under characteristic load, Lp is the in-house rate under characteristic load, θ is the pipeline efficiency, Ωp is the coefficient of influence of steam turbine heat consumption on energy consumption, σp is the coefficient of influence of boiler efficiency on energy consumption, Sp is the coefficient of influence of pipeline efficiency on energy consumption, and τp is the coefficient of influence of the in-house rate on energy consumption.

5. The step of determining the actual carbon emissions for each characteristic load point, based on the actual characteristic energy consumption and the actual carbon content of the burning coal at burnout, is as follows: The following steps include calculating the actual carbon emissions at characteristic load points using the following formula: [Math 5] The method for calculating carbon emissions from a thermal power generation unit according to claim 2, characterized in that, here, Cp is the actual carbon emissions at the characteristic load point, B'p is the actual characteristic energy consumption at the characteristic load point, and Cb is the actual carbon content of the burning coal at the time of complete combustion.

6. An electronic device comprising memory, a processor, and a computer program stored in the memory and operable on the processor, The electronic device is characterized in that, when the processor executes the computer program, it realizes the method for calculating carbon emissions from a thermal power generation unit as described in any one of claims 1 to 5.

7. A readable storage medium that stores instructions for a machine to execute the method for calculating the carbon emissions of a thermal power generation unit according to any one of claims 1 to 5.

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