CN109190967B - Carbon emission accounting method and system for thermal generator set - Google Patents
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Abstract
The invention discloses a carbon emission accounting method and a system for a thermal generator set, wherein the method comprises the following steps: gather a plurality of groups of data of the flue gas that thermal generator set discharged in presetting the accounting cycle, each group of data includes: flue gas volume flow data and concentration data of target greenhouse gases in the flue gas; respectively utilizing each group of data to calculate the emission of the target greenhouse gas corresponding to each group of data in a preset accounting period; according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to each group of data, reliability evaluation calculation is carried out on each group of data so as to judge whether each group of data meets a preset reliability index; and if so, performing average calculation on the emission of the target greenhouse gas corresponding to each group of data, and taking the calculated average value as a carbon emission calculation value of the thermal generator set in a calculation period. The accurate, reasonable and unique calculation of the emission of the target greenhouse gas of the thermal generator set is realized.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a carbon emission accounting method and system for a thermal generator set.
Background
The national carbon emission right transaction system is formally started in 2017, 12 and 19, marks that the China government further advances in the national climate emission reduction action, and the national carbon emission right transaction system goes on a perfect and sound way.
The foundation for supporting the construction of the carbon emission right trading system of the coal-fired thermal power enterprises is to accurately calculate the carbon dioxide emission of each coal-fired thermal power unit. In order to standardize a greenhouse gas emission accounting method for power generation enterprises, national development committee specially compiles a greenhouse gas emission accounting method and a report guide (pilot) for Chinese power generation enterprises, but according to accounting rules in the guide, under the condition that data is sufficient, any thermal power unit has 22 methods conforming to the guide to account carbon dioxide emission of the thermal power unit, and the results obtained by each accounting method are different, while under the condition of a certain operation condition, different enterprises may conform to different accounting methods in the guide, so that the reasonable accounting result of carbon dioxide emission of the same thermal power unit under the same operation condition is different for different enterprises. The method is not good for the fairness and justice of the carbon emission right trade in China, and is not beneficial to the healthy development of the carbon market in China.
Therefore, how to accurately account and make the emission of greenhouse gases such as carbon dioxide in the thermal power generating unit is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a carbon emission accounting method and system for a thermal power generating unit, which can accurately account and uniquely identify the emission of greenhouse gases such as carbon dioxide in the thermal power generating unit.
In order to solve the technical problems, the invention provides the following technical scheme:
a carbon emission accounting method for a thermal generator set comprises the following steps:
gather a plurality of groups of data of the flue gas that thermal generator set discharged in presetting the accounting cycle, each group of data includes: flue gas volumetric flow data and concentration data of a target greenhouse gas in the flue gas;
respectively utilizing each group of data to calculate the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period;
according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to each group of data, reliability evaluation calculation is carried out on each group of data so as to judge whether each group of data meets a preset reliability index;
and if so, carrying out average calculation on the emission of the target greenhouse gas corresponding to each group of data, and taking the calculated average value as a carbon emission calculation value of the thermal generator set in the calculation period.
Preferably, the collecting a plurality of groups of data of the flue gas emitted by the thermal generator set in a preset accounting period includes:
in the preset accounting period, acquiring a plurality of sets of data of the flue gas emitted by the thermal generator set through a plurality of sets of data acquisition equipment which are arranged in an exhaust passage of the thermal generator set in advance;
the data acquisition equipment comprises a flue gas flow collector and a target greenhouse gas concentration collector.
Preferably, the calculating the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period by using each group of data respectively comprises:
and performing integral calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in the preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
Preferably, the performing reliability evaluation calculation on the collected data according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to the collected data to judge whether the collected data meet a preset reliability index includes:
calculating the variance of the emission amount of the target greenhouse gas corresponding to each group of data;
judging whether the variance is smaller than a preset threshold value or not;
if the judgment result is yes, determining that the collected data of each group accord with a preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
Preferably, the method further comprises the following steps:
calculating the checking emission of the target greenhouse gas according to a preset carbon emission checking rule and preset parameters of the thermal generator set;
and when the collected data of each group do not accord with the preset reliability index, screening the emission with the minimum absolute error with the checking emission from the emission of the target greenhouse gas corresponding to the data of each group as the carbon emission check value of the thermal generator set in the check period.
Preferably, the calculating the check emission amount of the target greenhouse gas according to a preset carbon emission check rule and preset parameters of the thermal generator set includes:
according to a plurality of preset carbon emission accounting rules and preset parameters of the thermal power generator set corresponding to each carbon emission accounting rule, accounting out the standard emission of the target greenhouse gas corresponding to each carbon emission accounting rule;
and calculating the average value of the standard emission of the target greenhouse gases corresponding to the plurality of carbon emission calculation rules, and taking the average value as the checking emission of the target greenhouse gases.
A carbon emission amount accounting system for a thermal power generating set, comprising:
the collection module is used for collecting a plurality of groups of data of the flue gas emitted by the thermal generator set in a preset accounting period, and each group of data comprises: flue gas volumetric flow data and concentration data of a target greenhouse gas in the flue gas;
the calculation module is used for calculating the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period by using each group of data;
the judging module is used for carrying out reliability evaluation calculation on the collected data according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to the collected data so as to judge whether the collected data meet a preset reliability index;
and the accounting module is used for carrying out average value calculation on the emission of the target greenhouse gas corresponding to each group of data when the acquired group of data is judged to accord with the preset reliability index, and taking the calculated average value as the carbon emission accounting value of the thermal generator set in the accounting period.
Preferably, the calculation module comprises:
and the integration unit is used for performing integration calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in the preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
Preferably, the judging module includes:
a variance calculating unit for calculating a variance of the emission amount of the target greenhouse gas corresponding to each set of data;
the judging unit is used for judging whether the variance is smaller than a preset threshold value or not; when the judgment result is yes, determining that the collected data of each group accord with a preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
Preferably, the method further comprises the following steps:
the checking emission calculation module is used for calculating the checking emission of the target greenhouse gas according to a preset carbon emission checking rule and preset parameters of the thermal generator set;
and the checking module is used for screening out the emission with the minimum absolute error with the checking emission from the emission of the target greenhouse gas corresponding to each group of data as the carbon emission check value of the thermal generator set in the check period when the acquired group of data is judged not to accord with the preset reliability index.
Preferably, the check discharge amount calculation module includes:
the system comprises an accounting unit, a control unit and a control unit, wherein the accounting unit is used for accounting a target greenhouse gas standard emission corresponding to each carbon emission accounting rule according to a plurality of preset carbon emission accounting rules and preset parameters of the thermal power generating unit corresponding to each carbon emission accounting rule;
and the checking calculation unit is used for calculating the average value of the standard emission amount of the target greenhouse gas corresponding to the plurality of carbon emission checking rules, and taking the average value as the checking emission amount of the target greenhouse gas.
Compared with the prior art, the technical scheme has the following advantages:
the carbon emission accounting method for the thermal generator set provided by the embodiment of the invention comprises the following steps: gather a plurality of groups of data of the flue gas that thermal generator set discharged in presetting the accounting cycle, each group of data includes: flue gas volume flow data and concentration data of target greenhouse gases in the flue gas; respectively utilizing each group of data to calculate the emission of the target greenhouse gas corresponding to each group of data in a preset accounting period; according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to each group of data, reliability evaluation calculation is carried out on each group of data so as to judge whether each group of data meets a preset reliability index; and if so, performing average calculation on the emission of the target greenhouse gas corresponding to each group of data, and taking the calculated average value as a carbon emission calculation value of the thermal generator set in a calculation period. According to the scheme, the carbon emission is calculated by calculating the emission of the target greenhouse gas in the flue gas, the emission of the target greenhouse gas in the calculation period is calculated by the volume flow of the flue gas and the concentration of the target greenhouse gas, the emission of the target greenhouse gas is evaluated in reliability, the condition that data acquisition errors are large is eliminated, particularly, multiple groups of data are acquired to calculate the mean value, the calculation of the emission of the target greenhouse gas of the thermal generator set is more reasonable and accurate, and accurate calculation and uniqueness of the emission of the target greenhouse gas are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for accounting carbon emission for a thermal power generating unit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a carbon emission amount accounting system for a thermal power generating unit according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a carbon emission accounting method and system for a thermal generator set, which can realize accurate accounting and uniqueness of the emission of greenhouse gases such as carbon dioxide in the thermal generator set.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. The invention is therefore not limited to the specific implementations disclosed below.
Referring to fig. 1, fig. 1 is a flowchart of a method for accounting carbon emission for a thermal generator set according to an embodiment of the present invention.
One specific embodiment of the present invention provides a carbon emission amount accounting method for a thermal generator set, including:
s11: gather a plurality of groups of data of the flue gas that thermal generator set discharged in presetting the accounting cycle, each group of data includes: flue gas volumetric flow data and concentration data of a target greenhouse gas in the flue gas. The target greenhouse gas may be carbon dioxide. Other greenhouse gases may be used, and in the following examples, carbon dioxide is used as an example.
In an embodiment of the present invention, preferably, several sets of data of the flue gas emitted by the thermal generator set in a preset accounting period are collected, including: in a preset accounting period, acquiring a plurality of groups of data of flue gas emitted by a thermal generator set through a plurality of sets of data acquisition equipment arranged in an exhaust passage of the thermal generator set in advance; wherein, each set of data acquisition equipment comprises a flue gas flow collector and a carbon dioxide concentration collector.
The carbon dioxide emission amount of a thermal power generating set of an enterprise is calculated by measuring the flue gas flow and the carbon dioxide concentration of the enterprise such as coal-fired thermal power and the like. A plurality of sets of data acquisition equipment are arranged in an exhaust passage such as a chimney for data acquisition. For example, three sets of data acquisition devices are arranged in the chimney, so that three sets of data of the currently detected thermal generator set in the preset accounting period can be obtained.
In the present embodiment, it is preferable that the collected target greenhouse gas is carbon dioxide, because carbon dioxide is a main greenhouse gas in the exhaust flue gas in a normal case, and it is possible to improve the accuracy of carbon emission accounting and reduce the difficulty of data collection by using the greenhouse gas as a data collection target.
It should be noted that the term "carbon emission amount accounting" refers to an amount accounting of greenhouse gas emission, and carbon emission is a general term or abbreviation relating to greenhouse gas emission.
S12: and respectively calculating the emission amount of the target greenhouse gas corresponding to each group of data in a preset accounting period by using each group of data.
In one embodiment of the present invention, calculating the emission amount of the target greenhouse gas corresponding to each set of data in the preset accounting period by using each set of data respectively comprises: and performing integral calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in a preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
Specifically, the emission amount of the target greenhouse gas corresponding to each group of data is calculated by the following formula:
or,
wherein G is the emission of the target greenhouse gas in any group of data, and the unit is ton;
t is the preset accounting period;
f (t) is the smoke volume of the coal-fired thermal power enterprises in standard state at the time t, and the unit is standard cubic meter (Nm)3)；
H (t) is the emission content of the target greenhouse gas in the flue gas of the coal-fired thermal power enterprises under the standard state at the time t, and the unit is ton/standard cubic meter.
Taking the example in the above embodiment as an example, three sets of data acquisition devices are arranged in the chimney, so that three sets of data of the currently detected thermal generator set in the preset accounting period can be obtained, preferably, the acquired data can be sent to the corresponding integrators, and each integrator performs calculation processing according to the formula, so that three emissions of the target greenhouse gas of the thermal generator set in the preset accounting period can be obtained: g1, G2, G3.
S13: and according to a preset algorithm and the emission of the target greenhouse gas corresponding to each group of data, performing reliability evaluation calculation on each group of collected data to judge whether each group of collected data meets a preset reliability index.
In one embodiment of the present invention, data reliability evaluation is performed to determine whether there is a large error or error in each collected data set (e.g., data error due to failure of the device or the like that collected the data) to improve data quality. Specifically, firstly, calculating the variance of the emission amount of the target greenhouse gas corresponding to each group of data; judging whether the variance is smaller than a preset threshold value delta or not; if the judgment result is yes, determining that the collected data of each group accord with a preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
As such, the thermal power plant unit obtained in the above embodiment has three emissions of the target greenhouse gas in the preset accounting period: g1, G2, G3 are examples. The variance of these three emissions is found and compared to a preset threshold.
S14: and if so, performing average calculation on the emission of the target greenhouse gas corresponding to each group of data, and taking the calculated average value as a carbon emission calculation value of the thermal generator set in a calculation period.
And when the data of each group collected in the preset accounting period is judged to accord with the preset reliability index, executing the step. That is, on the basis of the above embodiment, when the variance is determined to be smaller than the preset threshold Δ, and it is determined that the collected data of each group meets the preset reliability index, that is, the collected data is explained to have reliability, the average value of the emission amount of the target greenhouse gas corresponding to each group of data is calculated.
In the embodiment, the carbon emission is calculated by calculating the emission of the target greenhouse gas, particularly carbon dioxide, in the flue gas, the emission of the target greenhouse gas in the calculation period is calculated by the volume flow of the flue gas and the concentration of the target greenhouse gas, the reliability of the emission of the target greenhouse gas is evaluated, the condition that the data acquisition error is large is eliminated, particularly, a plurality of groups of data are acquired for mean value calculation, so that the calculation of the emission of the target greenhouse gas of the thermal generator set is more reasonable and accurate, and the accuracy, rationalization and uniqueness of the calculation result of the emission of the target greenhouse gas are realized.
Further, on the basis of any one of the above embodiments, the method for accounting for carbon emission for a thermal power generating unit according to an embodiment of the present invention further includes:
calculating the checking emission of the target greenhouse gas according to a preset carbon emission checking rule and preset parameters of a thermal generator set;
and when the collected data of each group do not accord with the preset reliability index, screening the emission with the minimum absolute error with the checking emission from the emission of the target greenhouse gas corresponding to the data of each group as a carbon emission check value of the thermal generator set in the check period.
Further, calculating the checking emission of the target greenhouse gas according to a preset carbon emission checking rule and preset parameters of the thermal generator set, wherein the checking emission comprises the following steps: according to a plurality of preset carbon emission accounting rules, such as several or all of the accounting methods in 22 in the guideline, and preset parameters of the thermal power generating unit corresponding to each carbon emission accounting rule, the preset parameters may include a design value of q4, a default value of q4, a design distribution proportion of ash content, a default value of dust removal efficiency, a design value of dust removal efficiency, a default value of carbon content per calorific value, an actual carbon content per calorific value, ash content, slag content, a fuel lower calorific value, a carbon oxidation rate, an accounting period coal consumption and other parameters of the thermal power generating unit, and the target greenhouse gas standard emission corresponding to each carbon emission accounting rule is accounted; and calculating the average value of the standard emission of the target greenhouse gases corresponding to the plurality of carbon emission checking rules, and taking the average value as the checking emission of the target greenhouse gases.
In this embodiment, when it is determined that the collected data sets do not meet the preset reliability index, that is, the reliability of the collected data in the preset accounting period is insufficient, the above steps in this embodiment are performed.
The present embodiment introduces a checking mechanism. As can be seen from the background section, 22 methods are provided in the manual for accounting the carbon emission of thermal power generating units. As shown in table 1, different combinations of the accounting parameters corresponding to the 22 methods are shown.
TABLE 1 different combinations of accounting parameters
In the present embodiment, it is preferable that 22 different carbon dioxide emissions are checked by the above-described parameters of the power plant unit, such as the design value of q4, the default value of q4, the design distribution ratio of ash amount, the default value of dust removal efficiency, the design value of dust removal efficiency, the default value of carbon content per calorific value, the actual value of carbon content per calorific value, the ash amount, the slag amount, the lower calorific value of fuel, the carbon oxidation rate, and the coal consumption amount during the checking period, in accordance with the 22 combination formulas listed in table 1, and the average G4 of the 22 different emissions is determined.
The thermal power generating unit obtained in the above embodiment has three emissions of target greenhouse gases in a preset accounting period: g1, G2, G3 are examples. When the collected data of each group do not accord with the preset reliability index, screening out the carbon emission check value through the following formula:
A＝|G1-G4|，B＝|G2-G4|，C＝|G3-G4|，
D＝min{A，B，C}，
when D is A, G0G1; when D is B, G0G2; when D ═ C, G0＝G3；
A. B, C are absolute errors of target greenhouse gas emission and check emission corresponding to the three groups of data respectively;
d is the minimum value of the absolute errors of the target greenhouse gas emission and the check emission corresponding to the three groups of data;
G0and calculating the carbon emission value of the finally screened thermal generator set in the calculation period.
In the embodiment, the carbon emission of the target object is calculated by measuring the flue gas flow of the thermal power generating unit and the concentration of the target greenhouse gas in the flue gas, and particularly, the carbon emission is checked by a preset carbon emission calculation rule such as a calculation method specified in the guideline, so that the problem of uniqueness of the carbon emission calculation result of the coal-fired thermal power enterprise is solved.
Referring to fig. 2, fig. 2 is a schematic diagram of a carbon emission accounting system for a thermal power generating unit according to an embodiment of the present invention.
Correspondingly, an embodiment of the present invention further provides a carbon emission accounting system for a thermal generator set, including:
the acquisition module 21 is configured to acquire a plurality of sets of data of the flue gas emitted by the thermal generator set in a preset accounting period, where each set of data includes: flue gas volume flow data and concentration data of target greenhouse gases in the flue gas;
the calculation module 22 is used for calculating the emission amount of the target greenhouse gas corresponding to each group of data in a preset accounting period by using each group of data respectively;
the judging module 23 is configured to perform reliability evaluation calculation on the acquired data according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to the data, so as to judge whether the acquired data meets a preset reliability index;
and the accounting module 24 is configured to perform average calculation on the emission amount of the target greenhouse gas corresponding to each group of data when it is determined that each group of data collected meets a preset reliability index, and take the calculated average value as a carbon emission accounting value of the thermal generator set in an accounting period.
Further, the calculation module includes: and the integration unit is used for performing integration calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in a preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
The judging module comprises: a variance calculating unit for calculating a variance of the emission amount of the target greenhouse gas corresponding to each group of data; the judging unit is used for judging whether the variance is smaller than a preset threshold value or not; and when the judgment result is yes, determining whether the collected data of each group meet the preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
On the basis of any one of the above embodiments, the carbon emission amount accounting system for a thermal power generating unit according to an embodiment of the present invention further includes: the checking emission calculation module is used for calculating the checking emission of the target greenhouse gas according to a preset carbon emission check rule and preset parameters of the thermal generator set; and the checking module is used for screening out the emission with the minimum absolute error with the checking emission from the emission of the target greenhouse gas corresponding to each group of data as the carbon emission check value of the thermal generator set in the check period when the acquired group of data is judged not to accord with the preset reliability index.
The checking emission calculation module comprises: the accounting unit is used for accounting the target greenhouse gas standard emission corresponding to each carbon emission accounting rule according to a plurality of preset carbon emission accounting rules and the preset parameters of the thermal power generating unit corresponding to each carbon emission accounting rule; and the checking calculation unit is used for calculating the average value of the standard emission amount of the target greenhouse gas corresponding to the plurality of carbon emission checking rules, and taking the average value as the checking emission amount of the target greenhouse gas.
For a specific implementation, please refer to the corresponding method implementation, which is not described herein.
In the embodiment, the carbon emission is calculated by calculating the emission of the target greenhouse gas, particularly carbon dioxide, in the flue gas, the emission of the target greenhouse gas in the calculation period is calculated by the volume flow of the flue gas and the concentration of the target greenhouse gas, the emission of the target greenhouse gas in the calculation period is evaluated by reliability, the condition that the data acquisition error is large is eliminated, particularly, a plurality of groups of data are acquired for mean value calculation, so that the calculation of the emission of the target greenhouse gas of the thermal generator set is more reasonable and accurate, and the accurate calculation and the uniqueness of the emission of the target greenhouse gas are realized.
Particularly, when the collected data do not accord with the preset reliability index, namely the reliability of the collected data in the preset accounting period is insufficient, the data are calibrated by the aid of the preset carbon emission accounting rule such as the accounting method specified in the guideline, the rationality and the accuracy of the accounting of the target greenhouse gas emission of the thermal generator set are further improved, and the accurate accounting and the uniqueness of the target greenhouse gas emission are realized.
The method and the system for accounting the carbon emission of the thermal generator set provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A carbon emission accounting method for a thermal generator set is characterized by comprising the following steps:
gather a plurality of groups of data of the flue gas that thermal generator set discharged in presetting the accounting cycle, each group of data includes: flue gas volumetric flow data and concentration data of a target greenhouse gas in the flue gas;
respectively utilizing each group of data to calculate the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period;
according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to each group of data, reliability evaluation calculation is carried out on each group of data so as to judge whether each group of data meets a preset reliability index;
if so, performing average calculation on the emission of the target greenhouse gas corresponding to each group of data, and taking the calculated average value as a carbon emission calculation value of the thermal generator set in the calculation period;
when the collected data of each group do not accord with the preset reliability index, screening out the emission with the minimum absolute error with the check emission from the emission of the target greenhouse gas corresponding to the data of each group as the carbon emission check value of the thermal generator set in the check period; the check discharge amount is calculated in the following way:
according to a plurality of preset carbon emission accounting rules and preset parameters of the thermal power generator set corresponding to each carbon emission accounting rule, accounting out the standard emission of the target greenhouse gas corresponding to each carbon emission accounting rule; and calculating the average value of the standard emission of the target greenhouse gases corresponding to the plurality of carbon emission calculation rules, and taking the average value as the checking emission of the target greenhouse gases.
2. The method of claim 1, wherein the collecting of a plurality of sets of data of the flue gas emitted by the thermal power generating unit in a preset accounting period comprises:
in the preset accounting period, acquiring a plurality of sets of data of the flue gas emitted by the thermal generator set through a plurality of sets of data acquisition equipment which are arranged in an exhaust passage of the thermal generator set in advance;
the data acquisition equipment comprises a flue gas flow collector and a target greenhouse gas concentration collector.
3. The method according to claim 1, wherein the calculating the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period by using each group of data respectively comprises:
and performing integral calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in the preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
4. The method according to claim 3, wherein the performing reliability evaluation calculation on the collected data according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to the collected data to determine whether the collected data meets a preset reliability index comprises:
calculating the variance of the emission amount of the target greenhouse gas corresponding to each group of data;
judging whether the variance is smaller than a preset threshold value or not;
if the judgment result is yes, determining that the collected data of each group accord with a preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
5. A carbon emission amount accounting system for a thermal generator set, comprising:
the collection module is used for collecting a plurality of groups of data of the flue gas emitted by the thermal generator set in a preset accounting period, and each group of data comprises: flue gas volumetric flow data and concentration data of a target greenhouse gas in the flue gas;
the calculation module is used for calculating the emission amount of the target greenhouse gas corresponding to each group of data in the preset accounting period by using each group of data;
the judging module is used for carrying out reliability evaluation calculation on the collected data according to a preset algorithm and the emission amount of the target greenhouse gas corresponding to the collected data so as to judge whether the collected data meet a preset reliability index;
the calibration emission calculation module is used for calculating the standard emission of the target greenhouse gas corresponding to each carbon emission calculation rule according to a plurality of preset carbon emission calculation rules and the preset parameters of the thermal power generator set corresponding to each carbon emission calculation rule; calculating the average value of the standard emission of the target greenhouse gases corresponding to the plurality of carbon emission accounting rules, and taking the average value as the checking emission of the target greenhouse gases;
the accounting module is used for carrying out average value calculation on the emission amount of the target greenhouse gas corresponding to each group of data when the acquired group of data is judged to accord with a preset reliability index, and taking the calculated average value as a carbon emission accounting value of the thermal generator set in the accounting period; and when the collected data of each group do not accord with the preset reliability index, screening the emission with the minimum absolute error with the checking emission from the emission of the target greenhouse gas corresponding to the data of each group as the carbon emission check value of the thermal generator set in the check period.
6. The system of claim 5, wherein the computing module comprises:
and the integration unit is used for performing integration calculation on the product of the smoke volume flow data and the concentration data of the target greenhouse gas in the same group of data in the preset calculation period to obtain the emission amount of the target greenhouse gas in the group of data.
7. The system of claim 6, wherein the determining module comprises:
a variance calculating unit for calculating a variance of the emission amount of the target greenhouse gas corresponding to each set of data;
the judging unit is used for judging whether the variance is smaller than a preset threshold value or not; when the judgment result is yes, determining that the collected data of each group accord with a preset reliability index; otherwise, determining that the collected data of each group do not accord with the preset reliability index.
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| CN111177191A (en) * | 2019-11-28 | 2020-05-19 | 南京华盾电力信息安全测评有限公司 | Key index calculation analysis method based on carbon emission transaction |
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