Method and device for calibrating total energy consumption of fixed production line industrial enterprises by electric quantity

Abstract

The application discloses a kind of methods and devices for calibrating total energy consumption of fixed production line industrial enterprises with electric quantity, and specifically includes the following steps: obtaining the consumption of various types of energy of the fixed production line industrial enterprise to be calibrated in unit time and converting the consumption of various types of energy into the standard coal consumption corresponding to each type of energy E ct , obtaining the standard coal consumption corresponding to electric energy a ct from E ct , calculating the proportion of electric energy p, obtaining the current real-time total electric quantity a 当前 of the fixed production line industrial enterprise to be calibrated, converting a 当前 into the standard coal consumption corresponding to electric energy, denoted as a c当前 , calculating the current real-time total energy consumption Q of the fixed production line industrial enterprise to be calibrated according to p and a c当前 , and dynamically obtaining Q by repeating the above steps. By utilizing the characteristics of fixed energy consumption ratio of industrial enterprises, real-time dynamic and accurate electricity consumption data are introduced to calculate the real-time dynamic and accurate total energy consumption of enterprises.

Description

Technical Field

[0001] This invention relates to the field of computer data processing, and more specifically to a method and apparatus for calibrating the total energy consumption of a fixed production line industrial enterprise using electricity. Background Technology

[0002] With stricter energy consumption regulations, there is a need to obtain real-time dynamic total energy consumption data for enterprises. A company typically uses multiple energy sources, including electricity, natural gas, oil, and coal. While real-time dynamic data collection has been established for electricity usage—for example, daily electricity consumption data and the company's current annual total energy consumption can be obtained dynamically—natural gas, oil, and coal are pre-stored energy sources. Only the company's annual total procurement volume is available; it's difficult to monitor real-time usage or reserves. Therefore, it's impossible to dynamically obtain the company's total energy consumption. A more traditional approach is to require companies to report their energy consumption for different energy sources in real time. However, this is difficult for companies to accurately calculate their own real-time energy consumption, and the reporting requirement increases their burden. Summary of the Invention

[0003] The purpose of this invention is to provide a method and apparatus for determining the total energy consumption of a fixed production line industrial enterprise using electricity calibration. By utilizing the characteristic that industrial enterprises have a fixed energy consumption ratio, real-time dynamic and accurate electricity consumption data is introduced to calculate the real-time dynamic and accurate total energy consumption of the enterprise.

[0004] On the one hand, this application provides a method for calibrating the total energy consumption of a fixed production line industrial enterprise using electricity, specifically including the following steps:

[0005] S1. Obtain the consumption of various types of energy per unit time for the industrial enterprise with the fixed production line to be calibrated, denoted as E. t (a t b t c t , ..., d t The consumption of each type of energy source is then converted into the corresponding standard coal consumption, denoted as E. ct (a ct b ct c ct , ..., d ct );

[0006] S2, from E ct The standard coal consumption a corresponding to obtaining electricity in China ct According to a ct and E ct (a ct b ct c ct , ..., d ct Calculate a ctIn E ct The proportion of the steady state in the energy is denoted as the electrical energy proportion p;

[0007] S3. Obtain the current real-time total electricity consumption (a) of the industrial enterprise on the fixed production line to be calibrated. 当前 , will a 当前 The equivalent standard coal consumption in electrical energy, denoted as a c当前 ;

[0008] S4. Based on p and a c当前 Calculate the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated.

[0009] S5. Repeat steps S3-S4 to dynamically obtain the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated.

[0010] While businesses can obtain information on their annual energy consumption for each energy source, thus determining their total annual energy consumption, the consumption of energy sources like oil and coal, which are measured in whole units, cannot be obtained in real time, making it impossible to determine the company's real-time total energy consumption. To address this, this application provides real-time estimation and statistics for industrial enterprises with fixed production lines to extrapolate their real-time total energy consumption. A fixed production line means that production generally follows a standardized process, with relatively fixed equipment involved. Therefore, the energy consumption ratio between different pieces of equipment is constant, and industrial enterprises with fixed production lines exhibit a fixed energy consumption ratio characteristic. This application calculates the energy consumption ratio by analyzing the enterprise's historical energy consumption per unit time period and standardizing it to a uniform level. Since electricity is recorded daily and hourly by meters and is readily available in the power grid, the ratio of converted electricity to total energy consumption (i.e., the electricity percentage) can be used as the energy consumption ratio characteristic to estimate the enterprise's real-time total energy consumption. Since industrial enterprises with fixed production lines have fixed energy consumption ratios, these ratios (electricity ratio) are objectively real and can be extrapolated from historical data. Once these ratios are estimated, real-time electricity consumption can be collected from electricity meters, converted into the consumption of standard coal, and then the real-time total energy consumption of the enterprise can be calculated using the energy consumption ratio.

[0011] Furthermore, the method for obtaining the consumption of various types of energy per unit time in step S1 includes:

[0012] The unit of time is based on the annual standard, and the annual consumption of various types of energy in the industries to which the industrial enterprises with fixed production lines to be calibrated belong is obtained from the statistical system.

[0013] Furthermore, the specific process for calculating the electrical energy proportion p in step S2 is as follows:

[0014] S21. Convert the annual consumption of each type of energy into the corresponding standard coal equivalent (E). t Find the total annual standard coal consumption E. 总t E 总t =a ct +b ct +c ct +….+d ct ;

[0015] S22. Obtain the standard coal consumption a corresponding to electricity consumption for each year. ct Calculate the electricity consumption ratio p for each year. t ,

[0016] S23. Obtain the electricity share of the current year and the adjacent year N. When t is N, the electricity share of the adjacent year N is denoted as p. N Starting from the adjacent year N, iterate through the preceding years, selecting the electricity consumption ratio and p of the preceding years. N A stable interval is defined as T consecutive years of similar duration. The average annual electricity consumption ratio within this stable interval is calculated and taken as the electricity consumption ratio p.

[0017] Furthermore, the stability interval is determined as follows:

[0018] S231. Obtain the electricity consumption ratio for each year. Starting from the adjacent year N, iterate through the preceding years, calculating the electricity consumption ratio and p for years N-1, N-2...NT in sequence. N Is the difference between them less than 5%?

[0019] S232. If the electricity consumption percentage p for year NT is included in the calculation process. N-T With p N If the difference between them is not less than 5%, then the calculation will not continue.

[0020] S233. Take the T consecutive years between year N-T+1 and the adjacent year N as the stable interval.

[0021] Furthermore, the method for obtaining various energy consumption data per unit time in step S1 includes:

[0022] The energy consumption of each production piece on the fixed production line of the industrial enterprise to be calibrated is obtained on a daily, monthly, quarterly, or annual basis, using daily, monthly, quarterly, or annual time as the standard.

[0023] The energy consumption of each production equipment is summarized according to energy category to obtain the monthly, quarterly or annual energy consumption of the industrial enterprise with the fixed production line to be calibrated.

[0024] Furthermore, obtain the current real-time total electricity consumption 'a' of the industrial enterprise with the fixed production line to be calibrated. 当前 The methods include:

[0025] The current real-time total electricity consumption of the industrial enterprise with the fixed production line to be calibrated can be obtained from the power grid system or from the power acquisition equipment built into the industrial enterprise with the fixed production line to be calibrated.

[0026] In addition, this application provides a device for calibrating the total energy consumption of a fixed production line industrial enterprise using electricity, comprising:

[0027] One or more processors;

[0028] A storage unit is used to store one or more programs, which, when executed by one or more processors, enable the one or more processors to implement the above-described method for determining the total energy consumption of a fixed production line industrial enterprise using power calibration.

[0029] The beneficial effects of this invention are as follows:

[0030] This application obtains the historical energy consumption of various types of energy per unit time for industrial enterprises with fixed production lines, converts all types of energy into standard coal consumption, and calculates the proportion of electricity in the total energy consumption. This yields the energy consumption characteristic ratio of the industrial enterprise with fixed production lines, i.e., the electricity proportion rate. Since the electricity proportion rate is constant over a certain period, the industrial enterprise with fixed production lines to be calibrated can estimate its total energy consumption at that time based on the real-time electricity consumption data. This facilitates real-time monitoring of the enterprise's total energy consumption. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a method for determining the total energy consumption of a fixed production line industrial enterprise using power calibration, provided by an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of a stable range provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of a specific fixed production line scenario provided by an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of a method for determining the total energy consumption of an industrial enterprise A with a fixed production line using electricity calibration, as provided in an embodiment of the present invention. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention.

[0037] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0038] Furthermore, for clarity and brevity, descriptions of well-known structures, functions, and configurations may have been omitted. Those skilled in the art will recognize that various changes and modifications can be made to the examples described herein without departing from the spirit and scope of this disclosure.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0041] Example 1

[0042] The specific principles of this application are as follows:

[0043] For industrial enterprises with fixed production lines, a fixed production line means that production is generally carried out according to a standardized process, with the equipment involved in production typically being fixed. Therefore, industrial enterprises have a fixed energy consumption ratio. Although each piece of production equipment uses a different type of energy and consumes different amounts of energy per unit time, after merging all the equipment on the production line, the energy consumption ratio of different types of energy used by a single production line is fixed per unit time. If a piece of production equipment in a certain production line of an industrial enterprise is replaced with a new energy type, the energy consumption ratio of different types of energy used by that production line will change. Generally, for industrial enterprises, it usually takes a relatively long period, such as when restructuring the industrial structure, to replace equipment with a new energy type. Therefore, the energy ratio of an industrial enterprise tends to stabilize within a relatively long time range.

[0044] Specifically, let's take a certain milk production company as an example:

[0045] Its production line can be simplified as follows:

[0046] This includes pumps for transporting milk, and pasteurization equipment for storing and heating milk for pasteurization; among which,

[0047] Pumps used for transporting milk are typically set to consume 'a' units of electricity per ton, meaning that transporting 1 ton of milk requires 'a' units of electricity. Sterilization equipment is typically set to consume 'd' units of natural gas per ton, meaning that sterilizing 1 ton of milk requires 'd' units of natural gas. Therefore, the energy consumption ratio is: electricity:gas = a:d. The total energy consumption of all types of energy is generally determined based on the equipment's operating time or the output produced. For example, if the total daily output is set at 5 tons, then the electricity consumption is 5*a, and the gas consumption is 5*d. Further assuming 200 days of production per year, with 5 tons produced each day, then the annual electricity consumption is 1000*a, and the annual electricity consumption is 1000*d.

[0048] For statistical systems, they typically calculate the total annual energy consumption of a particular type of energy for a company or industry, for example:

[0049] Annually: Company A's total electricity consumption is A1 and natural gas consumption is D1. It has been verified that although the annual values ​​of A1 and D1 change, their ratio is similar to the a:d ratio and does not fluctuate significantly. After analyzing the reasons, it was found that since the equipment on the production line is fixed, although the annual output is different, this output is determined by the unit output and the number of days, not by the equipment.

[0050] Therefore, this invention uses the energy consumption ratio of different energy sources as a benchmark; by utilizing dynamic, total electrical energy data, it can push out the total energy consumption of all types of energy. This avoids the problem of requiring enterprises to report dynamic data on different types of energy.

[0051] For detailed calculations, please refer to [link / reference]. Figure 1 Specifically, it includes the following steps:

[0052] S1. Obtain the consumption of various types of energy per unit time for the industrial enterprise with the fixed production line to be calibrated, denoted as E. t (a t b t c t , ..., d t Various energy sources include electricity, oil, coal, or natural gas, for example, a t b represents the amount of electrical energy used per unit of time. t This represents the amount of oil used per unit time, and so on; whereby the consumption of various energy sources is converted into the corresponding standard coal consumption, denoted as E. ct(a ct b ct c ct , ..., d ct );a ct This indicates the amount of standard coal consumed per unit time in the conversion of electrical energy.

[0053] S2, from E ct The standard coal consumption a corresponding to obtaining electricity in China ct According to a ct and E ct (a ct b ct c ct , ..., d ct Calculate a ct In E ct The proportion of the steady state in the energy is denoted as the electrical energy proportion p;

[0054] S3. Obtain the current real-time total electricity consumption (a) of the industrial enterprise on the fixed production line to be calibrated from the electricity system. 当前 , will a 当前 The equivalent standard coal consumption in electrical energy, denoted as a c当前 ;

[0055] Specifically, the power system includes the power grid system or the enterprise's self-built power consumption monitoring system, which obtains the current real-time total power consumption 'a'. 当前 The current real-time total electricity consumption of the industrial enterprise with the fixed production line to be calibrated can be obtained from the power grid system or from the power acquisition equipment built into the industrial enterprise with the fixed production line to be calibrated.

[0056] S4. Based on p and a c当前 Calculate the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated.

[0057] S5. Repeat steps S3-S4 to dynamically obtain the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated.

[0058] Among them, the energy consumption per unit time can be obtained from historical data, with the annual standard, and the energy consumption of various industries of the industrial enterprises to be calibrated in each year can be obtained from the statistical system.

[0059] The process of calculating the proportion of electricity consumption for each type of energy source in each year is as follows:

[0060] S21. Convert the annual consumption of each type of energy into the corresponding standard coal equivalent (E). t Find the total annual standard coal consumption E. 总t E 总t =act +b ct +c ct +….+d ct ;

[0061] S22. Obtain the standard coal consumption a corresponding to electricity consumption for each year. ct Calculate the electricity consumption ratio p for each year. t , t represents the year;

[0062] S23. Obtain the electricity share of the current year and the adjacent year N. When t is N, the electricity share of the adjacent year N is denoted as p. N Starting from the adjacent year N, iterate through the preceding years, selecting the electricity consumption ratio and p of the preceding years. N A stable interval is defined as T consecutive years of similar duration. The average annual electricity consumption ratio within this stable interval is calculated and taken as the electricity consumption ratio p.

[0063] In analyzing the electricity share trends across various industries, the applicant discovered the following characteristics: If the electricity share in the most recent year exceeds 98% and generally does not fluctuate significantly, it indicates that the company has completed its industrial upgrading and has essentially transitioned to clean energy, such as in the furniture and instrument manufacturing industries. If the electricity share suddenly increases or decreases significantly, it indicates that the company is undergoing industrial restructuring, and the share in the following year generally will not decrease or increase significantly, remaining stable for a certain period. If the electricity share has been steadily and slowly increasing or decreasing for two consecutive years, the share in the following year will generally remain flat or continue to increase or decrease. If the electricity share has stabilized around a certain value since a certain year, the share in the following year will not change significantly relative to the share after that year. All of these electricity share trends share a common characteristic: within a continuous period adjacent to the current year, there exists a relatively stable range of electricity share.

[0064] Based on this characteristic, such as Figure 2 As shown, a stable interval is given, and the process of obtaining this stable interval can be as follows:

[0065] S231. Obtain the electricity consumption ratio for each year. Starting from the adjacent year N, iterate through the preceding years, calculating the electricity consumption ratio and p for years N-1, N-2...NT in sequence. N Is the difference between them less than 5%?

[0066] S232. If the electricity consumption percentage p for year NT is included in the calculation process. N-T With p NIf the difference between them is not less than 5%, then the calculation will not continue.

[0067] S233. Take the T consecutive years between year N-T+1 and the adjacent year N as the stable interval.

[0068] For example, such as Figure 2 As shown, if the current year is 2021, when calculating the electricity share of the current year, it is found that the electricity share of the current year was less than 5% for more than ten consecutive years between 2010 and 2020, and greater than 5% in 2009. Therefore, the year after 2009, that is, 2010-2020, is taken as the stable period.

[0069] In another implementation, the determination of the electricity proportion can also be:

[0070] Compare the current year's electricity share with the most recent year (i.e., the adjacent year) to see if there is a significant increase / decrease (more than 5%), or if the most recent year's share is not less than 0.98.

[0071] If so, the electricity share of the most recent year will be used as the electricity share of the current year.

[0072] Otherwise, compare the current year's electricity share with the previous two years to see if it has been steadily increasing / decreasing (the electricity share of the previous year did not exceed 5%). If so, the electricity share of the most recent year is used as the electricity share of the current year. Otherwise, iterate from the most recent year to the previous year until the difference between the electricity share of a certain year and the electricity share of the most recent year (adjacent year) exceeds 3%. Then, take the average of the electricity share of all years after the year that exceeds 3% as the electricity share of the current year.

[0073] In one specific implementation, the method for obtaining various energy consumption data per unit time in step S1 includes:

[0074] The energy consumption of each production piece on the fixed production line of the industrial enterprise to be calibrated is obtained on a daily, monthly, quarterly, or annual basis, using daily, monthly, quarterly, or annual time as the standard.

[0075] The energy consumption of each production equipment is summarized according to energy category to obtain the monthly, quarterly or annual energy consumption of the industrial enterprise with the fixed production line to be calibrated.

[0076] For example, a device can be installed on each production equipment to collect specific consumed products, such as the carbon dioxide or steam value produced after the production equipment uses natural gas. Then, the usage of various energy sources can be deduced based on the energy ratio. Finally, the usage of all the same energy sources on the entire fixed production line can be summarized to obtain the usage of various energy sources.

[0077] In a specific use case, such as Figure 3 , Figure 4 As shown, for example, for enterprise A with a fixed production line, the calibration system obtains historical energy consumption data for various industries belonging to enterprise A from the statistical system. On an annual basis, it calculates the annual electricity consumption ratio of the industry to which enterprise A belongs. For enterprise A, on its fixed production line, there is equipment A, which uses electricity with a consumption of 'a'; equipment B, which uses petroleum with a consumption of 'b'; equipment C, which uses coal with a consumption of 'c'; and equipment D, which uses natural gas with a consumption of 'd'. When converting according to their respective standard coal coefficients, assuming the standard coal coefficient for electricity is X1, for petroleum it is X2, for coal it is X3, for natural gas it is X4, and so on, then the converted total standard coal consumption = a c +b c +c c +….+d c =X1*a + X2*b + X3*c + X4*d..., where the proportion of electricity consumption (converted to standard coal equivalent) to the total standard coal consumption is X1*a: total consumption; From the historical electricity consumption ratios, select several consecutive years with similar electricity consumption ratios to the current year as a stable interval, calculate the average annual electricity consumption ratio within the stable interval, and use this average as the electricity consumption ratio. Then, when the calibration system obtains the current total electricity consumption of company A for the current year, it can convert the current total electricity consumption into standard coal consumption, which is a. c当前 =X1*a 当前 Using a c当前 The total current energy consumption of an enterprise can be calculated by equating its current energy consumption with the percentage of electricity consumption.

[0078] Example 2: A computer-readable storage medium storing a computer program thereon, which, when executed by a processor, enables the implementation of the method for determining the total energy consumption of a fixed production line industrial enterprise using power calibration.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Based on the technical essence of the present invention, any simple modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principles of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for determining the total energy consumption of a fixed production line industrial enterprise using electricity calibration, characterized in that, Specifically, the following steps are included: S1. Obtain the consumption of various types of energy per unit time for the industrial enterprise with the fixed production line to be calibrated, denoted as E. t (a) t b t c t , ..., d t ); and convert the consumption of each type of energy into the corresponding standard coal consumption, denoted as E. ct (a) ct b ct c ct , ... , d ct ); S2, from E ct The standard coal consumption a corresponding to obtaining electricity in China ct According to a ct and E ct (a) ct b ct c ct , ... , d ct Calculate a ct In E ct The proportion of the steady state in the energy is denoted as the electrical energy proportion p; The specific process for calculating the electricity proportion p in step S2 is as follows: S21. Convert the annual consumption of each type of energy into the corresponding standard coal equivalent (E). t Find the total annual standard coal consumption E. 总t E 总t = a ct +b ct +c ct +…+d ct ; S22. Obtain the standard coal consumption a corresponding to electricity consumption for each year. ct Calculate the electricity consumption ratio p for each year. t , ; S23. Obtain the electricity share of the current year and the adjacent year N. When t is N, the electricity share of the adjacent year N is denoted as p. N Starting from the adjacent year N, iterate through the preceding years, selecting the electricity consumption ratio and p of the preceding years. N A stable interval is defined as T consecutive years of similar duration. The average annual electricity consumption ratio within this stable interval is calculated and taken as the electricity consumption ratio p. ; The stability interval is determined as follows: S231. Obtain the electricity consumption ratio for each year. Starting from the adjacent year N, iterate through the preceding years, calculating the electricity consumption ratio and p for years N-1, N-2...NT in sequence. N Is the difference between them less than 5%? S232. If the electricity consumption percentage p for year NT is included in the calculation process. N-T With p N If the difference between them is not less than 5%, then the calculation will not continue. S233. Take the T consecutive years between year N-T+1 and the adjacent year N as the stable interval; S3. Obtain the current real-time total electricity consumption (a) of the industrial enterprise on the fixed production line to be calibrated. 当前 , will a 当前 The equivalent standard coal consumption in electrical energy, denoted as a c当前 ; S4. Based on p and a c当前 Calculate the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated. ; S5. Repeat steps S3-S4 to dynamically obtain the current real-time total energy consumption Q of the industrial enterprise with the fixed production line to be calibrated.

2. A method for determining the total energy consumption of a fixed production line industrial enterprise using electricity calibration according to claim 1, characterized in that, The methods for obtaining the consumption of various types of energy per unit time in step S1 include: The unit of time is based on the annual standard, and the annual consumption of various types of energy in the industries to which the industrial enterprises with fixed production lines to be calibrated belong is obtained from the statistical system.

3. The method for determining the total energy consumption of a fixed production line industrial enterprise using electricity calibration according to claim 1, characterized in that, The methods for obtaining various energy consumption data per unit time in step S1 include: The energy consumption of each production piece on the fixed production line of the industrial enterprise to be calibrated is obtained on a daily, monthly, quarterly, or annual basis, using daily, monthly, quarterly, or annual time as the standard. The energy consumption of each production equipment is summarized according to energy category to obtain the monthly, quarterly or annual energy consumption of the industrial enterprise with the fixed production line to be calibrated.

4. The method for determining the total energy consumption of a fixed production line industrial enterprise using electricity calibration according to claim 1, characterized in that, Obtain the current real-time total electricity consumption (a) of the industrial enterprise with the fixed production line to be calibrated. 当前 The methods include: The current real-time total electricity consumption of the industrial enterprise with the fixed production line to be calibrated can be obtained from the power grid system or from the power acquisition equipment built into the industrial enterprise with the fixed production line to be calibrated.

5. A device for calibrating the total energy consumption of a fixed production line industrial enterprise using electricity, characterized in that, include: One or more processors; A storage unit for storing one or more programs, which, when executed by one or more processors, enable the one or more processors to implement a method for determining the total energy consumption of a fixed production line industrial enterprise using power calibration, as described in any one of claims 1 to 4.

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