CN117293838A - Node carbon potential construction method and system based on power flow analysis - Google Patents
Node carbon potential construction method and system based on power flow analysis Download PDFInfo
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 95
- 238000005206 flow analysis Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims abstract description 160
- 239000011159 matrix material Substances 0.000 claims abstract description 62
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- 238000002347 injection Methods 0.000 claims abstract description 53
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/50—Controlling the sharing of the out-of-phase component
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The application belongs to the technical field of low carbon of power systems, and discloses a node carbon potential construction method and system based on power flow analysis, wherein the method comprises the following steps: acquiring a power network diagram; numbering each node in the power network diagram; analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix; acquiring first monitoring data of a first monitoring terminal connected with each generator set in a one-to-one correspondence manner; constructing a unit injection distribution matrix according to each first monitoring data; calculating a node carbon potential vector according to the branch tidal current distribution matrix and the unit injection distribution matrix; and obtaining the carbon potential of each node according to each element in the node carbon potential vector. The method and the device can realize accurate and quick calculation of the node carbon potential.
Description
Technical Field
The application relates to the technical field of low carbon of power systems, in particular to a node carbon potential construction method and system based on power flow analysis.
Background
Carbon emission flows are defined in the power system as virtual network flows formed by carbon emissions that are present in dependence on the power flow and are used to characterize the maintenance of any branch flow in the power system. Intuitively, the power system carbon emission flow corresponds to labeling the flow on each branch with carbon emissions. In an electrical power system, a carbon emission flow starts from a power plant (power plant node), flows in the grid following the tide in the system as the power plant surfing power enters the electrical power system, and finally flows into consumer terminals (load nodes) on the user side. On the surface, carbon emissions are vented to the atmosphere via a power plant, and in essence, carbon emissions are consumed by electricity consumers via a carbon emission stream.
In the manner of carrying out carbon emission accounting based on the carbon emission flow theory from the power flow analysis, the accuracy of the construction of the node carbon potential directly relates to the accuracy of the accounting, so how to carry out the construction of the accurate node carbon potential is a technical problem to be solved.
Disclosure of Invention
The utility model provides a node carbon potential construction method and system based on power flow analysis, which can realize accurate and rapid calculation of node carbon potential.
In a first aspect, an embodiment of the present application provides a method for constructing a node carbon potential based on power flow analysis, including:
acquiring a power network diagram;
numbering each node in the power network diagram;
analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix;
acquiring first monitoring data of a first monitoring terminal connected with each generator set in a one-to-one correspondence manner;
constructing a unit injection distribution matrix according to each first monitoring data;
calculating a node carbon potential vector according to the branch tidal current distribution matrix and the unit injection distribution matrix;
and obtaining the carbon potential of each node according to each element in the node carbon potential vector.
Further, the analyzing the power network graph by using the power flow analysis method to obtain the branch power flow distribution matrix includes:
analyzing the power network diagram by adopting a power flow analysis method to obtain forward active power flow among all nodes;
and constructing a branch power flow distribution matrix according to each forward active power flow.
Further, the constructing a unit injection distribution matrix according to each first monitoring data includes:
taking the node accessed by each generator set in the power network diagram as an injection node;
calculating the active power flow of each injection node according to each first monitoring data;
and constructing a unit injection distribution matrix based on the active power flow of each injection node.
Further, the first monitoring data includes voltage data and current data of the generator set corresponding to the first monitoring terminal.
Further, the acquiring the power network diagram includes:
acquiring a main circuit diagram;
determining second monitoring terminals connected with the nodes in one-to-one correspondence according to the main line diagram;
acquiring first communication information of a first monitoring terminal connected with each generator set in one-to-one correspondence;
acquiring second communication information of a second monitoring terminal connected with each node in one-to-one correspondence;
determining the position of each node based on each first communication information and each second communication information;
acquiring first interconnection communication information between the first monitoring terminal and each second monitoring terminal through each second monitoring terminal;
determining injection nodes which are connected with the generator sets in a one-to-one correspondence manner based on the first interconnection communication information;
acquiring third communication information of a third monitoring terminal connected with each load in one-to-one correspondence;
acquiring second interconnection communication information between the second monitoring terminals and the third monitoring terminals through the second monitoring terminals;
determining the connection relation between each load and each node according to each second communication information, each third communication information and each second interconnection communication information; and obtaining a power network diagram according to the connection relation, the positions of the nodes and the injection nodes.
Further, the first communication information comprises positioning information and cruising query information of the corresponding first monitoring terminal;
the second communication information comprises positioning information and cruising query information of a corresponding second monitoring terminal;
the third communication information comprises positioning information and cruising query information of the corresponding third monitoring terminal.
Further, the method further comprises:
receiving an access application of a third monitoring terminal;
verifying the service condition and the load connection condition of the third monitoring terminal according to the access application;
if the third monitoring terminal is used and connected with the load, positioning information of the third monitoring terminal is obtained;
determining a display interface and a plurality of nodes to be accessed based on the positioning information;
the display interface is sent to a third monitoring terminal for display;
receiving target node selection information of a third monitoring terminal, and determining a target node;
and establishing communication connection between the third monitoring terminal and a second monitoring terminal corresponding to the target node.
Further, the determining, based on the positioning information, the display interface and the plurality of nodes to be accessed includes:
determining a positioning point corresponding to the positioning information in the historical power network diagram;
calculating the shortest distance between the locating point and each line according to the historical power network diagram;
taking a line corresponding to the shortest distance equal to a preset distance threshold as a target line;
and taking each node on the target line as a node to be accessed.
Further, the determining, based on the positioning information, the display interface and the plurality of nodes to be accessed further includes:
calculating the nearest distance between the locating point and the main line and the line point position corresponding to the nearest distance;
determining a first node and a second node at two ends of a line point position on a main line;
respectively calculating a first distance and a second distance from a positioning point to a first node and a second node;
if the first distance is larger than the second distance, multiplying the first distance by a preset multiple to obtain a target radius;
otherwise, multiplying the second distance by a preset multiple to obtain a target radius;
the display interface is determined based on the anchor point and the target radius.
In a second aspect, an embodiment of the present application provides a node carbon potential construction system based on power flow analysis, including:
the acquisition module is used for acquiring the power network diagram;
the numbering module is used for numbering each node in the power network diagram;
the branch analysis module is used for analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix;
the monitoring module is used for acquiring first monitoring data of a first monitoring terminal which is connected with each generator set in a one-to-one correspondence manner;
the unit construction module is used for constructing a unit injection distribution matrix according to each first monitoring data;
the calculation module is used for calculating a node carbon potential vector according to the branch flow distribution matrix and the unit injection distribution matrix;
and the carbon potential determining module is used for obtaining the carbon potential of each node according to each element in the node carbon potential vector.
In a third aspect, an embodiment of the present application provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the steps of the method for constructing a node carbon potential based on power flow analysis according to any one of the embodiments described above.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the node carbon potential construction method based on power flow analysis of any of the above embodiments.
In summary, compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial effects that at least:
according to the node carbon potential construction method based on the power flow analysis, a power flow analysis method is adopted to analyze a power network diagram to obtain a branch power flow distribution matrix, a unit injection distribution matrix is constructed according to first monitoring data corresponding to each generator unit, so that active power, reactive power, voltage and phase angle of all nodes can be obtained, then node carbon potential vectors are calculated according to the branch power flow distribution matrix and the unit injection distribution matrix, carbon potential of each node is obtained according to each element in the node carbon potential vectors, and accurate and rapid calculation of the node carbon potential is realized.
Drawings
Fig. 1 is a flowchart of a node carbon potential construction method based on power flow analysis according to an embodiment of the present application.
Fig. 2 is a schematic diagram of determining a line point location according to an embodiment of the present application.
Fig. 3 is a block diagram of a node carbon potential construction system based on power flow analysis according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application.
All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, an embodiment of the present application provides a node carbon potential construction method based on power flow analysis, which specifically includes the following steps:
and S1, acquiring a power network diagram.
And S2, numbering each node in the power network diagram.
Specifically, the node number is used as a subscript of the data to be applied to matrix calculation in the subsequent step; because the numbered nodes can determine the positions of the data corresponding to each node in each matrix, the performance of each calculation step can be ensured.
And S3, analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix.
Specifically, the analyzing the power network graph by adopting the power flow analysis method to obtain the branch power flow distribution matrix includes:
and analyzing the power network graph by adopting a power flow analysis method to obtain forward active power flow among the nodes.
And constructing a branch power flow distribution matrix according to each forward active power flow.
Wherein, the branch power flow distribution matrix is expressed as:
wherein P is B The branch power flow distribution matrix; p (P) Bij Representing a forward active power flow through a leg between an i-th power node to a j-th power node; p (P) BN1 Representing a forward active power flow through a leg between the nth power node to the 1 st power node; p (P) B1N Representing the forward active power flow through the leg between the 1 st power node to the nth power node.
And S4, acquiring first monitoring data of a first monitoring terminal connected with each generator set in a one-to-one correspondence manner.
The first monitoring data comprise voltage data and current data of the generator set corresponding to the first monitoring terminal.
And S5, constructing a unit injection distribution matrix according to each first monitoring data.
Specifically, the construction of the unit injection distribution matrix according to each first monitoring data includes:
and taking the node accessed by each generator set in the power network diagram as an injection node.
And calculating the active power flow of each injection node according to each first monitoring data.
And constructing a unit injection distribution matrix based on the active power flow of each injection node.
The unit injection distribution matrix can be specifically expressed as:
wherein P is G Injecting a distribution matrix for the unit; p (P) GKN Injecting an active power flow for the nth power node from the kth power node; p (P) G1N To inject an active power flow of the nth power node from the 1 st power node; p (P) G11 To inject an active power flow of the 1 st power node from the 1 st power node; p (P) GK1 To inject an active power flow of the 1 st power node from the kth power node; p (P) Gkm Injecting an active power flow for the mth power node from the kth power node; the power nodes are all injection nodes herein.
And S6, calculating a node carbon potential vector according to the branch current distribution matrix and the unit injection distribution matrix.
And S7, obtaining the carbon potential of each node according to each element in the node carbon potential vector.
Specifically, the node carbon potential vector is calculated through a branch flow distribution matrix and a unit injection matrix, and the formula is as follows:
wherein E is n Representing the node carbon potential vector, ζ N+K A row vector of 1 for one element, E G Is the carbon emission intensity vector of the generator set. Node carbon potential vector E n Is a vector formed by arranging the carbon potential of each node, and thus the node carbon potential vector E n Corresponding to the carbon potential of each node.
According to the node carbon potential construction method based on the power flow analysis, the power network diagram is analyzed by adopting the power flow analysis method to obtain the branch power flow distribution matrix, the unit injection distribution matrix is constructed according to the first monitoring data corresponding to each generator unit, so that the active power, reactive power, voltage and phase angle of all nodes can be obtained, then the node carbon potential vector is calculated according to the branch power flow distribution matrix and the unit injection distribution matrix, the carbon potential of each node is obtained according to each element in the node carbon potential vector, and accurate and rapid calculation of the node carbon potential is realized.
In some embodiments, the acquiring a power network graph includes:
and acquiring a main circuit diagram.
And determining second monitoring terminals connected with the nodes in one-to-one correspondence according to the trunk circuit diagram.
And acquiring first communication information of a first monitoring terminal connected with each generator set in one-to-one correspondence.
And acquiring second communication information of a second monitoring terminal connected with each node in one-to-one correspondence.
The position of each node is determined based on each first communication information and each second communication information.
And acquiring first interconnection communication information between the second monitoring terminals and the first monitoring terminals through the second monitoring terminals.
And determining injection nodes connected with the generator sets in a one-to-one correspondence mode based on the first interconnection communication information.
And acquiring third communication information of a third monitoring terminal connected with each load in one-to-one correspondence.
And acquiring second interconnection communication information between the second monitoring terminals and the third monitoring terminals through the second monitoring terminals.
Determining the connection relation between each load and each node according to each second communication information, each third communication information and each second interconnection communication information; and obtaining a power network diagram according to the connection relation, the positions of the nodes and the injection nodes.
The trunk line map is a diagram showing each trunk line in the city in the virtual map. The first communication information comprises positioning information and cruising query information of a corresponding first monitoring terminal; the second communication information comprises positioning information and cruising query information of a corresponding second monitoring terminal; the third communication information comprises positioning information and cruising query information of the corresponding third monitoring terminal.
If the first, second and third monitoring terminals communicate with the server in real time, the burden of the server is increased, so that the server communicates with the second monitoring terminal at ordinary times, and the first and third monitoring terminals communicate with the second monitoring terminal respectively to form a communication chain. The cruising inquiry information is periodically inspected, and the terminal state of the server is reported through the terminal self-inspection function; only during the cruising self-checking, the communication data of the first monitoring terminal and the third monitoring terminal are directly transmitted to the server, so that the communication pressure of the server at ordinary times is shared.
Specifically, the verification of the node position can be performed by comparing the positioning information of each monitoring terminal with the position information of the main road image; when first interconnection communication information exists between the first monitoring terminal and the second monitoring terminal, namely when the first interconnection communication information of the first monitoring terminal and a certain first monitoring terminal is acquired through the second monitoring terminal, the node corresponding to the second monitoring terminal can be determined to be connected with the generator set corresponding to the first monitoring terminal, namely when the first monitoring terminal and the second monitoring terminal are set, the communication connection of the two terminals can be carried out according to whether the first monitoring terminal and the second monitoring terminal are connected or not, so that a server can determine the connection condition of the generator set and the node and the change of the injection node in real time, the real-time update of an electric power network diagram is ensured, and the timely and accurate carbon emission tracing is ensured.
Further, each load is connected with each node on the trunk line graph based on second communication information of a second monitoring terminal arranged at each node, third communication information of a third monitoring terminal connected with each load in one-to-one correspondence, and second interconnection communication information between the second monitoring terminal and the third monitoring terminal, and finally, an electric power network graph is formed according to the connection relation between the load and the node, the node position determined according to the positioning information, and the injection node.
The embodiment builds the power network diagram based on the communication information of each monitoring terminal, and ensures the real-time updating of the power network diagram and the accurate calculation of the node carbon potential, thereby ensuring the timely and accurate tracing of the carbon emission.
In some embodiments, the method further comprises:
and receiving an access application of the third monitoring terminal.
And verifying the service condition and the load connection condition of the third monitoring terminal according to the access application.
And if the third monitoring terminal is used and is connected with the load, acquiring positioning information of the third monitoring terminal.
And determining a display interface and a plurality of nodes to be accessed based on the positioning information.
And sending the display interface to a third monitoring terminal for display.
And receiving target node selection information of the third monitoring terminal, and determining a target node.
And establishing communication connection between the third monitoring terminal and a second monitoring terminal corresponding to the target node.
Specifically, receiving an access application sent by a worker through a third monitoring terminal; only when the worker installs the existing load in real time and accesses the new load, the worker synchronously connects the third monitoring terminal to the load, and when the worker accesses the load, the worker directly sends an access application to the server through the key on the third monitoring terminal.
Verifying the access application; it is mainly verified whether the third monitoring terminal is used or not and whether it is connected with a load or not. And when the verification is passed, positioning information of the third monitoring terminal is obtained through a positioning module of the third monitoring terminal, and a display picture is determined based on the positioning information, wherein the display picture comprises a node to be accessed, which is accessible by the third monitoring terminal.
Receiving target node selection information of a worker of the third monitoring terminal on the node to be accessed on the display screen, and determining the target node selected to be accessed by the third monitoring terminal; sending access verification information of the third monitoring terminal to the target node, and sending access request information to the third monitoring terminal; and establishing communication connection between the third monitoring terminal and the second monitoring terminal corresponding to the selected target node based on the access request information and the access verification information.
In some embodiments, determining the display interface and the plurality of nodes to be accessed based on the positioning information includes:
and determining a locating point corresponding to the locating information in the historical power network diagram.
And calculating the shortest distance between the locating point and each line according to the historical power network diagram.
And taking the line corresponding to the shortest distance equal to the preset distance threshold as the target line.
And taking each node on the target line as a node to be accessed.
The power network diagram is updated in real time, so that the historical power network diagram is the power network diagram at the last moment; the preset distance threshold is set manually, i.e. the approximate distance between the node to be accessed and the third monitoring terminal can be selected manually.
In some embodiments, the determining, based on the positioning information, the display interface and the plurality of nodes to be accessed further includes:
and calculating the nearest distance between the locating point and the main line and the line point position corresponding to the nearest distance.
And determining a first node and a second node at two ends of a line point position on the main line.
And respectively calculating a first distance and a second distance from the positioning point to the first node and the second node.
And if the first distance is larger than the second distance, multiplying the first distance by a preset multiple to obtain the target radius.
Otherwise, multiplying the second distance by a preset multiple to obtain the target radius.
The display interface is determined based on the anchor point and the target radius.
Referring to fig. 2, the closest distance line between the anchor point and the trunk line and the intersection point between the trunk lines are the line points. The trunk has many nodes, and two nodes located at both ends of only the line point can be the first node and the second node.
Calculating the distance between the positioning point and the first node and the distance between the positioning point and the second node, and multiplying the larger distance value by a preset multiple to obtain a target radius; wherein the preset multiple can be 1 time, 2 times or 3 times; and finally, in the historical power network diagram, drawing a circle by taking the positioning point as the circle center and the target radius, extracting a display picture and sending the display picture to a third monitoring terminal.
Referring to fig. 3, another embodiment of the present application provides a node carbon potential construction system based on power flow analysis, including:
an acquisition module 101 is configured to acquire a power network map.
And the numbering module 102 is used for numbering each node in the power network diagram.
And the branch analysis module 103 is used for analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix.
And the monitoring module 104 is used for acquiring first monitoring data of the first monitoring terminals connected with the generator sets in a one-to-one correspondence manner.
The unit construction module 105 is configured to construct a unit injection distribution matrix according to each first monitoring data.
And the calculation module 106 is used for calculating the node carbon potential vector according to the branch current distribution matrix and the unit injection distribution matrix.
The carbon potential determining module 107 is configured to obtain the carbon potential of each node according to each element in the node carbon potential vector.
According to the node carbon potential construction system based on the power flow analysis, the power network diagram is analyzed by adopting the power flow analysis method to obtain the branch power flow distribution matrix, the unit injection distribution matrix is constructed according to the first monitoring data corresponding to each generator unit, so that the active power, reactive power, voltage and phase angle of all nodes can be obtained, then the node carbon potential vector is calculated according to the branch power flow distribution matrix and the unit injection distribution matrix, the carbon potential of each node is obtained according to each element in the node carbon potential vector, and accurate and rapid calculation of the node carbon potential is realized.
In some embodiments, the branch analysis module 103 includes:
and the analysis unit is used for analyzing the power network diagram by adopting a power flow analysis method to obtain forward active power flow among the nodes.
And the branch construction unit is used for constructing a branch power flow distribution matrix according to each forward active power flow.
In some embodiments, the crew construction module 105 includes:
and the injection unit is used for taking the node accessed by each generator set in the power network diagram as an injection node.
And the monitoring calculation unit is used for calculating the active power flow of each injection node according to each first monitoring data.
And the unit construction unit is used for constructing a unit injection distribution matrix based on the active power flow of each injection node.
In some embodiments, the acquiring module 101 is further configured to:
and acquiring a main circuit diagram.
And determining second monitoring terminals connected with the nodes in one-to-one correspondence according to the trunk circuit diagram.
And acquiring first communication information of a first monitoring terminal connected with each generator set in one-to-one correspondence.
And acquiring second communication information of a second monitoring terminal connected with each node in one-to-one correspondence.
The position of each node is determined based on each first communication information and each second communication information.
And acquiring first interconnection communication information between the second monitoring terminals and the first monitoring terminals through the second monitoring terminals.
And determining injection nodes connected with the generator sets in a one-to-one correspondence mode based on the first interconnection communication information.
And acquiring third communication information of a third monitoring terminal connected with each load in one-to-one correspondence.
And acquiring second interconnection communication information between the second monitoring terminals and the third monitoring terminals through the second monitoring terminals.
Determining the connection relation between each load and each node according to each second communication information, each third communication information and each second interconnection communication information; and obtaining a power network diagram according to the connection relation, the positions of the nodes and the injection nodes.
In some embodiments, the system further comprises an access module for:
and receiving an access application of the third monitoring terminal.
And verifying the service condition and the load connection condition of the third monitoring terminal according to the access application.
And if the third monitoring terminal is used and is connected with the load, acquiring positioning information of the third monitoring terminal.
And determining a display interface and a plurality of nodes to be accessed based on the positioning information.
And sending the display interface to a third monitoring terminal for display.
And receiving target node selection information of the third monitoring terminal, and determining a target node.
And establishing communication connection between the third monitoring terminal and a second monitoring terminal corresponding to the target node.
For the specific limitation of the node carbon potential construction system based on the power flow analysis provided in this embodiment, reference may be made to the above embodiments of the node carbon potential construction method based on the power flow analysis, which are not described herein. The above-described modules in the node carbon potential construction system based on power flow analysis may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Embodiments of the present application provide a computer device that may include a processor, memory, a network interface, and a database connected by a system bus. Wherein 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, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, causes the processor to perform the steps of the node carbon potential construction method based on power flow analysis as in any of the embodiments described above.
The working process, working details and technical effects of the computer device provided in this embodiment may be referred to the above embodiments of the node carbon potential construction method based on power flow analysis, and are not described herein.
An embodiment of the present application provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the node carbon potential construction method based on power flow analysis of any of the embodiments described above. The computer readable storage medium refers to a carrier for storing data, and may include, but is not limited to, a floppy disk, an optical disk, a hard disk, a flash Memory, and/or a Memory Stick (Memory Stick), etc., where the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The working process, working details and technical effects of the computer readable storage medium provided in this embodiment can be referred to the above embodiments of the node carbon potential construction method based on power flow analysis, and will not be described herein.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The node carbon potential construction method based on the power flow analysis is characterized by comprising the following steps of:
acquiring a power network diagram;
numbering each node in the power network diagram;
analyzing the power network graph by adopting a power flow analysis method to obtain a branch power flow distribution matrix;
acquiring first monitoring data of a first monitoring terminal connected with each generator set in a one-to-one correspondence manner;
constructing a unit injection distribution matrix according to each first monitoring data;
calculating a node carbon potential vector according to the branch tidal current distribution matrix and the unit injection distribution matrix;
and obtaining the carbon potential of each node according to each element in the node carbon potential vector.
2. The method for constructing a node carbon potential based on power flow analysis according to claim 1, wherein the analyzing the power network graph by using a power flow analysis method to obtain a branch power flow distribution matrix comprises:
analyzing the power network graph by adopting a power flow analysis method to obtain forward active power flow among the nodes;
and constructing the branch power flow distribution matrix according to each forward active power flow.
3. The method for constructing a node carbon potential based on power flow analysis according to claim 1, wherein the constructing a group injection distribution matrix based on each of the first monitoring data comprises:
taking the node accessed by each generator set in the power network diagram as an injection node;
calculating the active power flow of each injection node according to each first monitoring data;
and constructing the unit injection distribution matrix based on the active power flow of each injection node.
4. The power flow analysis-based node carbon potential construction method of claim 3, wherein the first monitoring data includes voltage data and current data of the generator set corresponding to the first monitoring terminal.
5. The method for constructing a node carbon potential based on power flow analysis according to claim 1, wherein the acquiring the power network map comprises:
acquiring a main circuit diagram;
determining second monitoring terminals connected with the nodes in one-to-one correspondence according to the trunk line diagram;
acquiring first communication information of a first monitoring terminal connected with each generator set in one-to-one correspondence;
acquiring second communication information of a second monitoring terminal connected with each node in one-to-one correspondence;
determining a position of each node based on each of the first communication information and each of the second communication information;
acquiring first interconnection communication information between the second monitoring terminals and the first monitoring terminals through the second monitoring terminals;
determining injection nodes connected with the generator sets in a one-to-one correspondence mode based on the first interconnection communication information;
acquiring third communication information of a third monitoring terminal connected with each load in one-to-one correspondence;
acquiring second interconnection communication information between the second monitoring terminals and the third monitoring terminals through the second monitoring terminals;
determining a connection relationship between each load and each node according to each second communication information, each third communication information and each second interconnection communication information;
and obtaining a power network diagram according to the connection relation, the positions of the nodes and the injection nodes.
6. The method for constructing a node carbon potential based on power flow analysis according to claim 5, wherein the first communication information includes positioning information and cruising query information of the corresponding first monitoring terminal;
the second communication information comprises the positioning information and the cruising query information of the corresponding second monitoring terminal;
the third communication information includes the positioning information and the cruise query information of the corresponding third monitoring terminal.
7. The power flow analysis-based node carbon potential construction method of claim 5, further comprising:
receiving an access application of the third monitoring terminal;
verifying the service condition and the load connection condition of the third monitoring terminal according to the access application;
if the third monitoring terminal is used and connected with the load, positioning information of the third monitoring terminal is obtained;
determining a display interface and a plurality of nodes to be accessed based on the positioning information;
the display interface is sent to the third monitoring terminal for display;
receiving target node selection information of the third monitoring terminal, and determining a target node;
and establishing communication connection between the third monitoring terminal and the second monitoring terminal corresponding to the target node.
8. The method for constructing a node carbon potential based on power flow analysis according to claim 7, wherein the determining a display interface and a plurality of nodes to be accessed based on the positioning information comprises:
determining a positioning point corresponding to the positioning information in a historical power network diagram;
calculating the shortest distance between the locating point and each line according to the historical power network diagram;
taking the line corresponding to the shortest distance equal to a preset distance threshold as a target line;
and taking each node on the target line as the node to be accessed.
9. The method for constructing a node carbon potential based on power flow analysis according to claim 8, wherein the determining a display interface and a plurality of nodes to be accessed based on the positioning information further comprises:
calculating the nearest distance between the locating point and the main line and the line point position corresponding to the nearest distance;
determining a first node and a second node at two ends of the line point location on the main line;
respectively calculating a first distance and a second distance from the positioning point to the first node and the second node;
if the first distance is larger than the second distance, multiplying the first distance by a preset multiple to obtain a target radius;
otherwise, multiplying the second distance by the preset multiple to obtain the target radius;
and determining the display interface based on the positioning point and the target radius.
10. A node carbon potential construction system based on power flow analysis, comprising:
the acquisition module is used for acquiring the power network diagram;
the numbering module is used for numbering each node in the power network diagram;
the branch analysis module is used for analyzing the power network diagram by adopting a power flow analysis method to obtain a branch power flow distribution matrix;
the monitoring module is used for acquiring first monitoring data of a first monitoring terminal which is connected with each generator set in a one-to-one correspondence manner;
the unit construction module is used for constructing a unit injection distribution matrix according to each first monitoring data;
the calculation module is used for calculating a node carbon potential vector according to the branch tidal current distribution matrix and the unit injection distribution matrix;
and the carbon potential determining module is used for obtaining the carbon potential of each node according to each element in the node carbon potential vector.
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| CN202311154394.1A CN117293838A (en) | 2023-09-08 | 2023-09-08 | Node carbon potential construction method and system based on power flow analysis |
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