Carbon emission calculation method and apparatus for electric power system, and computer device and storage medium

Abstract

A carbon emission calculation method and apparatus for an electric power system, and a computer device and a storage medium. An electric power system comprises transformer areas, and the transformer areas each comprise at least one user node. The method comprises: acquiring a line loss rate of each transformer area; acquiring a dynamic carbon emission factor of each user node in the transformer area; taking the product of the dynamic carbon emission factor of any user node and the electricity utilization power of the user node as an indirect carbon emission amount from electricity utilization at the user node; on the basis of a line loss power of the transformer area and the dynamic carbon emission factor of each user node, determining an indirect carbon emission amount from line losses in the transformer area, wherein the line loss power of the transformer area is determined by means of an average power of user nodes and the line loss rate of the transformer area; and on the basis of the indirect carbon emission amount from electricity utilization at each user node and the indirect carbon emission amount from line losses in the transformer area, determining a carbon emission amount of the transformer area. In this way, the comprehensiveness and accuracy of carbon emission calculation of an electric power system can be improved during carbon emission analysis.

Description

Power system carbon emission metering method and device, computer device and storage medium TECHNICAL FIELD

[0001] The embodiments of the present specification relate to the field of computer technology, and particularly, relate to a power system carbon emission metering method, device, computer device and storage medium. BACKGROUND

[0002] In a power system, carbon emission analysis can be combined with power system flow calculation to more comprehensively reveal the characteristics and laws of carbon emission in the power system. Carbon emission flow is a virtual flow dependent on power system flow, which is used to represent the virtual network flow formed by carbon emission for maintaining the flow of any branch in the power system. Intuitively, it is equivalent to labeling each branch flow with carbon emission, so as to study the influence of user electricity difference of each branch on carbon emission, thereby promoting the implementation of carbon reduction policy and guiding the carbon reduction behavior of users.

[0003] However, in the related art, when performing carbon emission analysis, it is often difficult to reflect the carbon emission situation varying with the load of user nodes in the power system. Therefore, there is an urgent need to provide a power system carbon emission metering method to improve the comprehensiveness and accuracy of power system carbon emission metering.

[0004] SUMMARY

[0005] Therefore, the embodiments of the present specification are committed to providing a power system carbon emission metering method, device, computer device and storage medium to improve the comprehensiveness and accuracy of power system carbon emission metering.

[0006] The embodiments of the present specification provide a power system carbon emission metering method, the power system comprising a transformer area, the transformer area comprising at least one user node, the method comprising: obtaining a line loss rate of the transformer area at a target time; obtaining a dynamic carbon emission factor of each user node in the transformer area at the target time, wherein the dynamic carbon emission factor is determined based on a carbon emission metering parameter at the target time; for any user node, multiplying the dynamic carbon emission factor of the user node at the target time and the power consumption of the user node at the target time to obtain the indirect carbon emission of the user node at the target time; determining the indirect carbon emission of line loss of the transformer area according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each user node, wherein the line loss power of the transformer area at the target time is determined by the average power of user nodes and the line loss rate of the transformer area at the target time; and determining the transformer area carbon emission of the transformer area at the target time according to the indirect carbon emission of each user node and the indirect carbon emission of line loss of the transformer area.

[0007] In some embodiments, the obtaining the line loss rate of the transformer area at the target time point comprises: obtaining total power consumption of the transformer area at the target time point; obtaining user node power consumption of each of the user nodes in the transformer area at the target time point; and determining the line loss rate of the transformer area at the target time point based on the total power consumption and the user node power consumption of each of the user nodes.

[0008] In some embodiments, the obtaining the dynamic carbon emission factor of each of the user nodes in the transformer area at the target time point comprises: obtaining a carbon emission parameter, wherein the carbon emission parameter comprises a preset static carbon emission factor of each user node, a power transaction amount influence weight, total power transaction amount of the transformer area at the target time point, node power transaction amount of each of the user nodes at the target time point, and power factor of each of the user nodes; and determining the dynamic carbon emission factor of each of the user nodes at the target time point according to the static carbon emission factor, the power transaction amount influence weight, the total power transaction amount, the node power transaction amount of each of the user nodes, and the power factor of each of the user nodes.

[0009] In some embodiments, the dynamic carbon emission factor of the user node at the target time point is determined by the following formula:

[0010] wherein, represents the dynamic carbon emission factor of any user node, represents the static carbon emission factor of any user node, E n represents the node power transaction amount of any user node, E total represents the total power transaction amount of the transformer area, PF n represents the power factor of any user node, and α represents a weight coefficient with a value range of 0-1.

[0011] In some embodiments, the carbon emission parameter further comprises a renewable energy proportion, and the dynamic carbon emission factor of the user node at the target time point is determined by the following formula:

[0012] wherein, represents the dynamic carbon emission factor of any user node, represents the static carbon emission factor of any user node, E n represents the node power transaction amount of any user node, E total represents the total power transaction amount of the transformer area, f n represents the renewable energy proportion of the power source in the transformer area, PF n represents the power factor of any user node, and α represents a weight coefficient with a value range of 0-1.

[0013] In some embodiments, the line loss indirect carbon emission amount is determined by the following formula:

[0014] wherein F L represents the line loss indirect carbon emission amount of the transformer area, N represents the total number of user nodes in the transformer area, n represents any user node in the transformer area, represents the dynamic carbon emission factor of any user node; L represents the line loss rate of the transformer area, P L represents the line loss power of the transformer area, represents the user node of any user node in the transformer area.

[0015] In some embodiments, the transformer area carbon emission amount is determined by the following formula:

[0016] wherein F total represents the transformer area carbon emission amount, F L represents the line loss indirect carbon emission amount of the transformer area, N is the total number of user nodes in the transformer area, F n represents the electricity indirect carbon emission amount of any user node.

[0017] The embodiment of the present specification provides a power system carbon emission metering device, the power system comprising a transformer area, the transformer area comprising at least one user node, the device comprising: a transformer area line loss rate acquisition module, configured to acquire the line loss rate of the transformer area at a target time; a carbon emission factor acquisition module, configured to acquire the dynamic carbon emission factor of each of the user nodes in the transformer area at the target time, wherein the dynamic carbon emission factor is determined based on the carbon emission metering parameter at the target time; a first carbon emission amount determination module, configured to, for any of the user nodes, take the product of the dynamic carbon emission factor of the user node at the target time and the electricity power of the user node at the target time as the electricity indirect carbon emission amount of the user node at the target time; a second carbon emission amount determination module, configured to determine the line loss indirect carbon emission amount of the transformer area according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each of the user nodes, wherein the line loss power of the transformer area at the target time is determined by the user node average power and the line loss rate of the transformer area at the target time; a transformer area carbon emission amount determination module, configured to determine the transformer area carbon emission amount of the transformer area at the target time according to the electricity indirect carbon emission amount of each of the user nodes and the line loss indirect carbon emission amount of the transformer area.

[0018] The embodiment of the present specification provides a computer device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the carbon emission metering method of any of the above embodiments when executing the computer program.

[0019] The computer readable storage medium provided by the embodiments of the present specification stores a computer program, and the computer program is executed by a processor to implement the carbon emission metering method of any one of the above embodiments.

[0020] The embodiments of the present specification provide a carbon emission metering method. The method comprises the following steps: obtaining a line loss rate of a transformer area at a target time point; obtaining a dynamic carbon emission factor of each user node in the transformer area, wherein the dynamic carbon emission factor is determined based on a carbon emission metering parameter of the user node at the target time point; multiplying the dynamic carbon emission factor of the user node at the target time point and a power consumption of the user node at the target time point to obtain an indirect carbon emission of the user node at the target time point; determining a line loss power of the transformer area at the target time point based on an average power of the user node and the line loss rate of the transformer area at the target time point; determining an indirect carbon emission of the transformer area based on the line loss power of the transformer area at the target time point and the dynamic carbon emission factor of each user node; and determining a carbon emission of the transformer area at the target time point based on the indirect carbon emission of each user node and the indirect carbon emission of the transformer area. In this way, when the carbon emission is analyzed, the carbon emission of the power system with the change of the load of the user node can be effectively reflected, and the comprehensiveness and accuracy of the carbon emission metering of the power system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] FIG. 1 is a schematic diagram of a power system provided by the embodiments of the present specification;

[0022] FIG. 2 is a flowchart of a carbon emission metering method of a power system provided by the embodiments of the present specification;

[0023] FIG. 3 is a schematic diagram of a carbon emission metering device of a power system provided by the embodiments of the present specification;

[0024] FIG. 4 is a schematic diagram of a computer device provided by the embodiments of the present specification. DETAILED DESCRIPTION

[0025] In order to enable persons skilled in the art to better understand the schemes of the present specification, the technical schemes in the embodiments of the present specification will be described clearly and completely in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only part of the embodiments of the present specification, rather than all the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by persons skilled in the art without creative labor are within the scope of protection of the present specification.

[0026] The embodiment of the present specification provides a scene example of carbon emission metering of a power system. Referring to FIG. 1, which is a schematic diagram of a power system provided by the embodiment of the present specification. In the scene example, the power system 100 can include a power generation side, a power distribution side and a user side. The power generation side refers to a side where a power grid or a power plant is located, the power distribution side can refer to a side where a power distribution transformer 110 is located, and the power distribution transformer 110 can reduce the high voltage power transmission of the power generation side to the distribution voltage and transmit it to the user side. The user side, also known as the load side, can include at least one transformer area 120, any transformer area 120 can correspond to one or more power distribution transformers 110, and any transformer area 120 can include at least one user node 130.

[0027] In the scene example, the power system 100 can also include a master station management platform 140, any transformer area 120 in the user side can be provided with a transformer area total table 150 and a transformer area acquisition terminal 160, and the user node 130 of any transformer area 120 can be provided with a user table 170. The transformer area acquisition terminal 160 can be connected with the master station management platform 140 and the transformer area total table 150, and the transformer area acquisition terminal 160 can be connected with the user table 170 through the transformer area total table 150, so that the transformer area acquisition terminal 160 can realize data interaction, uploading and issuing with the master station management platform 140, the transformer area total table 150 and the user table 170. For example, the transformer area acquisition terminal 160 can be connected with the master station management platform 140 by wire or wirelessly, for example, by wireless public network connection or wireless private network connection. As an example, the transformer area total table 150 can be arranged in the transformer area acquisition terminal 160, that is, the transformer area acquisition terminal 160 can integrate the function of the transformer area total table 150.

[0028] Specifically, the transformer area acquisition terminal 160 of any transformer area 120 can be arranged at the gateway of the transformer area, and the transformer area acquisition terminal 160 can perform carbon emission metering by acquiring the data issued by the master station management platform 140 and the data collected by the transformer area total table 150 and the user table 170. In this way, during the carbon emission metering process, only the transformer area acquisition terminal 160 needs to be updated without replacing the power consumption metering equipment such as the transformer area total table 150 and the user table 170 in the transformer area 120, so that the indirect carbon emissions of the user nodes 130 on the branch current in the transformer area 120, the line loss indirect carbon emissions and the transformer area carbon emissions of the transformer area 120 can be metered, thereby realizing real-time monitoring, data collection and analysis of the operation state and energy flow of the power generation side, the power distribution side and the load side, and being able to comprehensively and accurately meter and evaluate the carbon emission in the power system.

[0029] Exemplarily, any one of the load side areas 120 can include at least one branch, and the user table 170 can be arranged on the branch, and the user table 170 on the branch can collect data of the user nodes 130 on the branch. As an example, the user nodes 130 can be energy storage devices, photovoltaic inverters, charging piles and other electrical equipment. At present, the user nodes 130 can also be lighting users, power users, smart home users and the like.

[0030] Exemplarily, the area collection terminal 160 can detect, in real time, the power usage, energy flow, power load and other data of the area 120 or any one of the user nodes 130 in the area 120. As an example, the area collection terminal 160 also stores the area topology information of the area 120, so as to determine the indirect carbon emission of the line loss of the area 120.

[0031] The embodiment of the present specification provides a carbon emission metering method of a power system. Referring to FIG. 2, FIG. 2 is a flowchart of a carbon emission metering method of a power system provided by the embodiment. The embodiment provides method operation steps as shown in the flowchart, but more or fewer operation steps can be included based on conventional or non-inventive labor. The order of steps listed in the embodiment is only one of the many execution orders, and does not represent the only execution order. In actual system or server product execution, the method order shown in the embodiment can be executed in sequence or in parallel (for example, in a parallel processor or multi-thread processing environment). The carbon emission metering method can be applied to an area collection terminal of a power system, and specifically as shown in FIG. 2, the carbon emission metering method can include the following steps.

[0032] Step S210: Obtain the line loss rate of the area at the target time.

[0033] The line loss rate can refer to the percentage of the line loss power of the area at the target time to the total power supplied to the area, wherein the line loss power can refer to the lost power or energy, and the line loss rate can represent the energy loss degree of the area.

[0034] Step S220: Obtain the dynamic carbon emission factor of each user node in the area at the target time, wherein the dynamic carbon emission factor is determined based on the carbon emission metering parameter at the target time.

[0035] The carbon emission metering parameter can be a relevant index parameter required to be met by carbon emission metering, or can be real-time relevant data of the area at present.

[0036] In some cases, the carbon emission factor can refer to the unit carbon emission, or in other words, the dynamic carbon emission factor of any user node can refer to the real-time unit carbon emission of the user node.

[0037] Step S230: For any user node, the product of the dynamic carbon emission factor of the user node at the target moment and the power consumption of the user node at the target moment is taken as the indirect carbon emission of the user node at the target moment.

[0038] The indirect carbon emission of the user node is not generated at the user node, but is indirectly caused by the demand of the user node, and is the carbon emission generated by burning fossil energy in the process of producing power.

[0039] For example, the indirect carbon emission of power consumption can be determined by formula 1.

[0040] Wherein, n represents any user node in the transformer area, F n represents the indirect carbon emission of power consumption of any user node, represents the dynamic carbon emission factor of any user node, P n represents the power consumption of any user.

[0041] Step S240: According to the line loss power of the transformer area at the target moment and the dynamic carbon emission factor of each user node, the line loss indirect carbon emission of the transformer area is determined, wherein the line loss power of the transformer area at the target moment is determined by the average power of the user nodes and the line loss rate of the transformer area at the target moment.

[0042] Specifically, the average power of the user nodes in the transformer area can be determined, then the line loss power of the transformer area is determined according to the line loss rate of the transformer area at the target moment and the average power of the user nodes in the transformer area, and then the line loss indirect carbon emission of the transformer area is determined according to the line loss power of the transformer area and the dynamic carbon emission factor of each user node.

[0043] Step S250: According to the indirect carbon emission of power consumption of each user node and the line loss indirect carbon emission of the transformer area, the transformer area carbon emission of the transformer area at the target moment is determined.

[0044] For example, the transformer area acquisition terminal can upload at least one of the indirect carbon emission of power consumption, the line loss indirect carbon emission of the transformer area and the transformer area carbon emission of the transformer area to the master station management platform after determining the same, so that the master station management platform can timely understand the carbon emission situation such as the indirect carbon emission of power consumption, the line loss indirect carbon emission of the transformer area or the transformer area carbon emission of the transformer area, and timely formulate relevant emission reduction strategies.

[0045] Exemplarily, the transformer area acquisition terminal can monitor the carbon emission of the power distribution side or the power generation side in real time based on at least one of the electricity indirect carbon emission, the line loss indirect carbon emission of the transformer area, and the transformer area carbon emission of the transformer area. Meanwhile, the transformer area acquisition terminal can perform carbon emission analysis based on at least one of the electricity indirect carbon emission, the line loss indirect carbon emission of the transformer area, and the transformer area carbon emission of the transformer area, generate data such as transformer area cumulative indirect carbon emission, average carbon emission intensity, and 24-hour carbon emission curve, and upload to the master station management platform. In addition, carbon measurement related parameters and evaluation indexes adjusted by the master station management platform according to actual conditions can also be received, so as to update the parameters and further improve the comprehensiveness and accuracy of the carbon emission measurement of the power system.

[0046] In the above embodiment, by obtaining the line loss rate of the transformer area at the target time, and the dynamic carbon emission factor of each user node in the transformer area determined based on the carbon emission measurement parameter at the target time, then for any user node, the product of the dynamic carbon emission factor of the user node at the target time and the electricity power of the user node at the target time is taken as the electricity indirect carbon emission of the user node at the target time, and then the line loss power of the transformer area at the target time is determined by the average power of the user node and the line loss rate of the transformer area at the target time, and the line loss indirect carbon emission of the transformer area is determined according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each user node, and then the transformer area carbon emission of the transformer area at the target time is determined according to the electricity indirect carbon emission of each user node and the line loss indirect carbon emission of the transformer area, in this way, when performing carbon emission analysis, the carbon emission situation in the power system changing with the load of the user node can be effectively reflected, and the comprehensiveness and accuracy of the carbon emission measurement of the power system are improved.

[0047] In some embodiments, obtaining the line loss rate of the transformer area at the target time can include steps S310-S330.

[0048] Step S310: Obtain the total electricity consumption of the transformer area at the target time.

[0049] Step S320: Obtain the user node electricity consumption of each user node in the transformer area at the target time.

[0050] Step S330: Determine the line loss rate of the transformer area at the target time based on the total electricity consumption and the user node electricity consumption of each user node.

[0051] Exemplarily, the line loss rate of the transformer area can be determined by formula 2.

[0052] Wherein, L represents the line loss rate of the transformer area, N represents the total number of user nodes in the transformer area, n represents any user node in the transformer area, P n represents the user node electricity consumption of any user node, P totalTotal power consumption of the transformer area.

[0053] In some embodiments, obtaining the dynamic carbon emission factor of each user node in the transformer area at the target time can include the following steps S410-S420.

[0054] Step S410: Obtain carbon emission measurement parameters, wherein the carbon emission measurement parameters include preset static carbon emission factors of each user node, power transaction amount influence weights, total power transaction amount of the transformer area at the target time, node power transaction amount of each user node at the target time, and power factors of each user node.

[0055] The static carbon emission factor can be a preset carbon emission factor, which can be an annual average of unit carbon emission amount published by a relevant organization, or can be an average of unit carbon emission amount updated in real time or issued by the master station management platform as a dispatch center.

[0056] Step S420: Determine the dynamic carbon emission factor of each user node at the target time according to the static carbon emission factor, the power transaction amount influence weight, the total power transaction amount, the node power transaction amount of each node, and the power factor of each user node.

[0057] In some embodiments, the dynamic carbon emission factor of the user node at the target time can be determined by Formula 3.

[0058] wherein n represents any user node in the transformer area, represents the dynamic carbon emission factor of any user node, represents the static carbon emission factor of any user node, E n represents the node power transaction amount of any user node, E total represents the total power transaction amount of the transformer area, PF n represents the power factor of any user node.

[0059] In some embodiments, the carbon emission measurement parameters further include a renewable energy proportion. In this embodiment, the dynamic carbon emission factor of the user node at the target time can also be determined by Formula 4.

[0060] wherein, represents the dynamic carbon emission factor of any user node, represents the static carbon emission factor of any user node, E n represents the node power transaction amount of any user node, E total represents the total power transaction amount of the transformer area, f n represents the renewable energy proportion of power sources in the transformer area, PF nPF represents the power factor of any user node.

[0061] In some embodiments, the line loss indirect carbon emission of the substation can be determined by formula 5 and formula 6.

[0062] Wherein, F L represents the line loss indirect carbon emission of the substation, N represents the total number of user nodes in the substation, n represents any user node in the substation, represents the dynamic carbon emission factor of any user node;

[0063] L represents the line loss rate of the substation, P L represents the line loss power of the substation, represents the user node in any user node in the substation.

[0064] In some embodiments, the substation carbon emission can be determined by formula 7.

[0065] Wherein, F total represents the substation carbon emission, F L represents the line loss indirect carbon emission of the substation, N is the total number of user nodes in the substation, F n represents the electricity indirect carbon emission of any user node.

[0066] The embodiments of the present specification provide a carbon emission metering device of a power system. The carbon emission metering device can be applied to a substation acquisition terminal of a power system. Referring to FIG. 3, the carbon emission metering device can include a substation line loss rate acquisition module 310, a carbon emission factor acquisition module 320, a first carbon emission amount determination module 330, a second carbon emission amount determination module 340, and a substation carbon emission amount determination module 350.

[0067] The substation line loss rate acquisition module 310 is configured to acquire the line loss rate of the substation at a target time;

[0068] The carbon emission factor acquisition module 320 is configured to acquire the dynamic carbon emission factor of each user node in the substation at the target time, wherein the dynamic carbon emission factor is determined based on the carbon emission metering parameter at the target time;

[0069] The first carbon emission amount determination module 330 is configured to, for any user node, take the product of the dynamic carbon emission factor of the user node at the target time and the electricity power of the user node at the target time as the electricity indirect carbon emission of the user node at the target time;

[0070] The second carbon emission amount determination module 340 is configured to determine the line loss indirect carbon emission amount of the transformer area according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each user node, wherein the line loss power of the transformer area at the target time is determined by the user node average power and the line loss rate of the transformer area at the target time.

[0071] The transformer area carbon emission amount determination module 350 is configured to determine the transformer area carbon emission amount of the transformer area at the target time according to the user node indirect carbon emission amount of each user node and the line loss indirect carbon emission amount of the transformer area.

[0072] In some embodiments, the transformer area line loss rate acquisition module 310 is further configured to: acquire the total power consumption of the transformer area at the target time; acquire the user node power consumption of each user node in the transformer area at the target time; and determine the line loss rate of the transformer area at the target time based on the total power consumption and the user node power consumption of each user node.

[0073] In some embodiments, the carbon emission factor acquisition module 320 is further configured to: acquire carbon emission metering parameters, wherein the carbon emission metering parameters include a preset static carbon emission factor of each user node, a power transaction amount influence weight, a total power transaction amount of the transformer area at the target time, a node power transaction amount of each user node at the target time, and a power factor of each user node; and determine the dynamic carbon emission factor of each user node at the target time according to the static carbon emission factor, the power transaction amount influence weight, the total power transaction amount, the node power transaction amount of each user node, and the power factor of each user node.

[0074] For specific functions and effects of the carbon emission metering device, refer to the explanations of other embodiments of the present specification, which will not be repeated here. Each module in the carbon emission metering device can be realized by software, hardware, or a combination thereof, in whole or in part. Each module can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each module.

[0075] The embodiments of the present specification also provide a computer readable storage medium having a computer program stored thereon, which, when executed by a computer, causes the computer to perform the carbon emission metering method in any of the above embodiments.

[0076] The embodiments of the present specification also provide a computer program product containing instructions, which, when executed by a computer, cause the computer to perform the carbon emission metering method in any of the above embodiments.

[0077] The embodiments of the present specification also provide a computer device including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the carbon emission metering method in the above embodiments.

[0078] In some embodiments, referring to FIG. 4, the computer device can be a terminal, and its internal structure diagram can be as shown in FIG. 4. The computer device includes a processor, a memory, and a communication interface connected through a system bus. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The communication interface of the computer device is configured to perform wired or wireless communication with an external terminal. The wireless communication can be achieved through WIFI, a carrier network, NFC (Near Field Communication), or other technologies. The computer program is executed by the processor to implement the carbon emission metering method.

[0079] It can be understood that the specific examples herein are only to help those skilled in the art better understand the embodiments of the present specification, and not to limit the scope of the present application.

[0080] It can be understood that in various embodiments of the present specification, the size of the serial number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present specification.

[0081] It can be understood that the various embodiments described in the present specification can be implemented alone or in combination, and the embodiments of the present specification do not limit this.

[0082] Unless otherwise defined, all technical and scientific terms used in the embodiments of the present specification have the same meanings as those commonly understood by those skilled in the art of the present specification. The terms used in the present specification are only for the purpose of describing the specific embodiments and are not intended to limit the scope of the present specification. The term "and / or" used in the present specification includes any and all combinations of one or more related listed terms. The singular forms "a", "an" and "the" used in the embodiments of the present specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0083] It can be understood that the processor of the embodiments of the present specification can be an integrated circuit chip with processing capability of signals. In the implementation process, each step of the method embodiments described above can be completed by integrated logic circuits in hardware or instructions in software form in the processor. The processor described above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. Each method, step and logic block disclosed in the embodiments of the present specification can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present specification can be directly embodied as a hardware coding processor for execution, or a combination of hardware and software modules in the coding processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the storage, and the processor reads the information in the storage, and combines the hardware to complete the steps of the above method.

[0084] It can be understood that the memory in the embodiments of the present specification can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (EPROM), an electrically erasable programmable read only memory (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM). It should be noted that the memory of the system and method described herein is intended to include but not limited to these and any other suitable type of memory.

[0085] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present specification.

[0086] Those skilled in the art can clearly understand the specific working process of the system, device and unit described above for the convenience and brevity of description, which can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0087] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of metering carbon emissions from an electrical power system, characterized by, The power system comprises a transformer area, and the transformer area comprises at least one user node, and the method comprises: obtaining the line loss rate of the transformer area at a target time; obtaining the dynamic carbon emission factor of each user node in the transformer area at the target time, wherein the dynamic carbon emission factor is determined based on a carbon emission measurement parameter at the target time; for any user node, multiplying the dynamic carbon emission factor of the user node at the target time by the power consumption of the user node at the target time to obtain the indirect carbon emission of the user node at the target time; determining the indirect carbon emission of the transformer area at the target time according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each user node, wherein the line loss power of the transformer area at the target time is determined by the average power of the user nodes and the line loss rate of the transformer area at the target time; determining the transformer carbon emission of the transformer area at the target time according to the indirect carbon emission of each user node and the indirect carbon emission of the transformer area.

2. The method of claim 1, wherein, The method comprises: obtaining the total power consumption of the transformer area at the target time; obtaining the user node power consumption of each user node in the transformer area at the target time; determining the line loss rate of the transformer area at the target time based on the total power consumption and the user node power consumption of each user node.

3. The method of claim 1, wherein, The method comprises: obtaining the carbon emission measurement parameter, wherein the carbon emission measurement parameter comprises a preset static carbon emission factor of each user node, a power transaction amount influence weight, a total power transaction amount of the transformer area at the target time, a node power transaction amount of each user node at the target time, and a power factor of each user node; determining the dynamic carbon emission factor of each user node at the target time according to the static carbon emission factor, the power transaction amount influence weight, the total power transaction amount, the node power transaction amount of each user node, and the power factor of each user node.

4. The method of claim 3, wherein, The dynamic carbon emission factor of the user node at the target time point is determined by the following formula: wherein a dynamic carbon emission factor representing any user node, E represents the static carbon emission factor of any user node n E represents the node power transaction volume of any user node total PF represents the total power transaction volume of a transformer area n α represents the weight coefficient.

5. The method of claim 3, wherein, The carbon emission metering parameter further comprises a renewable energy proportion, and a dynamic carbon emission factor of the user node at the target time moment is determined by the following formula: wherein a dynamic carbon emission factor representing any user node, E represents the static carbon emission factor of any user node n E represents the node power transaction volume of any user node total f represents the total power transaction volume of a transformer area n PF represents the renewable energy proportion of power sources in a transformer area n α represents the weight coefficient.

6. The method of claim 1, wherein, The indirect carbon emission amount of line loss is determined by the following formula: Wherein, F L represents the indirect carbon emissions of line loss of the transformer area, N represents the total number of user nodes in the transformer area, n represents any user node in the transformer area, The dynamic carbon emission factor of any user node is represented. L represents the line loss rate of the transformer station, P L represents the line loss power of the transformer station, The user node of any user node in the transformer area is represented.

7. The method of claim 1, wherein, The carbon emission of the transformer substation is determined by the following formula: Wherein, F total represents the carbon emissions of the transformer area, F L represents the indirect carbon emissions of the line loss of the transformer area, N is the total number of user nodes in the transformer area, F n represents the indirect carbon emissions of any user node.

8. An electrical power system carbon emission metering device, characterised in that, The power system comprises a transformer area, and the transformer area comprises at least one user node, and the device comprises: a transformer area line loss rate obtaining module for obtaining the line loss rate of the transformer area at a target time; a carbon emission factor obtaining module for obtaining the dynamic carbon emission factor of each user node in the transformer area at the target time, wherein the dynamic carbon emission factor is determined based on a carbon emission measurement parameter at the target time; a first carbon emission amount determining module for, for any user node, multiplying the dynamic carbon emission factor of the user node at the target time by the power consumption of the user node at the target time to obtain the indirect carbon emission of the user node at the target time; ​ a second carbon emission amount determining module, configured to determine a line loss indirect carbon emission amount of the transformer area according to the line loss power of the transformer area at the target time and the dynamic carbon emission factor of each of the user nodes, wherein the line loss power of the transformer area at the target time is determined by the user node average power and the line loss rate of the transformer area at the target time; a transformer area carbon emission amount determining module, configured to determine a transformer area carbon emission amount of the transformer area at the target time according to the electricity indirect carbon emission amount of each of the user nodes and the line loss indirect carbon emission amount of the transformer area. 9.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-8 when the computer program is executed by the processor. The processor executes the computer program to realize the carbon emission metering method in any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the carbon emission metering method in any one of claims 1 to 7.

Images