CN117639086A - Topology identification function evaluation method and device for power distribution area - Google Patents
Topology identification function evaluation method and device for power distribution area Download PDFInfo
- Publication number
- CN117639086A CN117639086A CN202210980667.7A CN202210980667A CN117639086A CN 117639086 A CN117639086 A CN 117639086A CN 202210980667 A CN202210980667 A CN 202210980667A CN 117639086 A CN117639086 A CN 117639086A
- Authority
- CN
- China
- Prior art keywords
- topology identification
- topology
- power distribution
- identification function
- distribution area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 151
- 238000011156 evaluation Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 11
- 230000004927 fusion Effects 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000010606 normalization Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 68
- 238000012360 testing method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013095 identification testing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010048669 Terminal state Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013210 evaluation model Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of intelligent power distribution networks, and particularly provides a topology identification function evaluation method and device for a power distribution area, comprising the following steps: acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas; determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area; and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area. The technical scheme provided by the invention can be used for checking the topology identification capability of the low-voltage distribution transformer area, completing the comprehensive evaluation of all aspects of the system and providing reference for the intelligent construction of the low-voltage distribution transformer area.
Description
Technical Field
The invention relates to the technical field of intelligent power distribution networks, in particular to a topology identification function evaluation method and device for a power distribution area.
Background
The low voltage distribution system is at the end of the overall power system and has the task of powering the consumers. With the rapid increase of the domestic electricity demand of residents, the problems of illegal electricity consumption, private lap joint circuit and the like of users frequently occur in a low-voltage power distribution system, so that the identification difficulty of the attribution of the customers of the electric energy meter is increased, the economic benefit is seriously influenced, and the management and safety risks coexist. In daily distribution operation and maintenance management work, partial topology cannot be directly obtained at all, manual investigation is needed, the workload is huge, and waste of manpower and material resources is caused. Moreover, manual investigation also has the risk of inaccurate acquisition of the topology of the area, and when the topology of the area changes, problems cannot be found in time. In order to grasp the network topology relation of the transformer, the branch box and the ammeter box of the network system of the whole area in real time, the automatic identification of the topology structure of the distribution network becomes a hot research problem.
In field application, the topology identification accuracy is also different due to factors such as communication quality, data difference and the like. Under the condition that no prior topological connection relation exists, the obtained topological results cannot be compared, the accuracy of the results cannot be guaranteed, and further the operation and maintenance of the power distribution network and the user experience are directly affected. Therefore, it is necessary to evaluate and analyze the topology identification result.
Disclosure of Invention
In order to overcome the defects, the invention provides a topology identification function evaluation method and device for a power distribution area.
In a first aspect, there is provided a topology identification function evaluation method of a power distribution substation, the topology identification function evaluation method of the power distribution substation including:
acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas;
determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
Preferably, the topology identification result correspondence index of the distribution area includes at least one of the following: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
Further, the calculation formula of the topology identification rate is as follows:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
Further, the calculation formula of the topological position fitness is as follows:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
Further, the topology identification time coefficient obtaining process includes:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
Preferably, the weight of the index corresponding to the topology identification result of the distribution area is obtained by adopting a hierarchical analysis method.
Preferably, the calculation formula of the evaluation value of the topology identification function of the distribution area is as follows:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i And n is the total number of indexes corresponding to the topology identification result of the power distribution area.
Preferably, the evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area includes:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
In a second aspect, there is provided a topology identification function evaluation apparatus of a power distribution substation, the topology identification function evaluation apparatus of the power distribution substation including:
the acquisition module is used for acquiring index values of the indexes corresponding to the topology identification result of the power distribution area;
the determining module is used for determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
and the evaluation module is used for evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
Preferably, the topology identification result correspondence index of the distribution area includes at least one of the following: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
Further, the obtaining module is specifically configured to calculate the topology identification rate according to the following formula:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
Further, the obtaining module is specifically configured to determine the degree of matching of the topological positions according to the following formula:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
Further, the obtaining module is specifically configured to obtain the topology identification time coefficient in the following manner:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
Preferably, the weight of the index corresponding to the topology identification result of the distribution area is obtained by adopting a hierarchical analysis method.
Preferably, the determining module is specifically configured to determine an evaluation value of a topology identification function of the distribution area according to the following formula:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i And n is the total number of indexes corresponding to the topology identification result of the power distribution area.
Preferably, the evaluation module is specifically configured to:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
In a third aspect, there is provided a computer device comprising: one or more processors;
the processor is used for storing one or more programs;
and when the one or more programs are executed by the one or more processors, implementing the topology identification function evaluation method of the distribution transformer area.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which when executed, implements the topology identification function evaluation method of a power distribution substation.
The technical scheme provided by the invention has at least one or more of the following beneficial effects:
the invention provides a topology identification function evaluation method and device for a power distribution area, comprising the following steps: acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas; determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area; and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area. The technical scheme provided by the invention can be used for checking the topology identification capability of the low-voltage distribution transformer area, completing the comprehensive evaluation of all aspects of the system and providing reference for the intelligent construction of the low-voltage distribution transformer area.
Drawings
Fig. 1 is a schematic flow chart of main steps of a topology identification function evaluation method of a power distribution area according to an embodiment of the present invention;
FIG. 2 is a flow chart of topology identification test case generation of an embodiment of the present invention;
FIG. 3 is a large cell topology diagram of an embodiment of the present invention;
fig. 4 is a main block diagram of a topology identification function evaluation apparatus of a distribution area according to an embodiment of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As disclosed in the background, low voltage power distribution systems are at the end of the overall power system and are tasked with powering the consumer. With the rapid increase of the domestic electricity demand of residents, the problems of illegal electricity consumption, private lap joint circuit and the like of users frequently occur in a low-voltage power distribution system, so that the identification difficulty of the attribution of the customers of the electric energy meter is increased, the economic benefit is seriously influenced, and the management and safety risks coexist. In daily distribution operation and maintenance management work, partial topology cannot be directly obtained at all, manual investigation is needed, the workload is huge, and waste of manpower and material resources is caused. Moreover, manual investigation also has the risk of inaccurate acquisition of the topology of the area, and when the topology of the area changes, problems cannot be found in time. In order to grasp the network topology relation of the transformer, the branch box and the ammeter box of the network system of the whole area in real time, the automatic identification of the topology structure of the distribution network becomes a hot research problem.
In field application, the topology identification accuracy is also different due to factors such as communication quality, data difference and the like. Under the condition that no prior topological connection relation exists, the obtained topological results cannot be compared, the accuracy of the results cannot be guaranteed, and further the operation and maintenance of the power distribution network and the user experience are directly affected. Therefore, it is necessary to evaluate and analyze the topology identification result.
In order to improve the above problems, the present invention provides a topology identification function evaluation method and apparatus for a power distribution substation, including: acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas; determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area; and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area. The technical scheme provided by the invention can be used for checking the topology identification capability of the low-voltage distribution transformer area, completing the comprehensive evaluation of all aspects of the system and providing reference for the intelligent construction of the low-voltage distribution transformer area. The above-described scheme is explained in detail below.
Example 1
Referring to fig. 1, fig. 1 is a schematic flow chart of main steps of a topology identification function evaluation method of a power distribution area according to an embodiment of the present invention. As shown in fig. 1, the topology identification function evaluation method of the distribution transformer area in the embodiment of the present invention mainly includes the following steps:
step S101: acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas;
step S102: determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
step S103: and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
Wherein, the topology identification result corresponding index of the distribution area comprises at least one of the following: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
In one embodiment, the topology identification rate is calculated as follows:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
In one embodiment, the calculation formula of the topological position fitness is as follows:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
In one embodiment, the process of obtaining the topology identification time coefficient includes:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
In this embodiment, the weight of the index corresponding to the topology identification result of the distribution area is obtained by using a hierarchical analysis method.
In this embodiment, the calculation formula of the evaluation value of the topology identification function of the distribution area is as follows:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i The weight of the i index corresponding to the topology identification result of the power distribution area is given, and n is the index corresponding to the topology identification result of the power distribution areaTotal number of labels.
In this embodiment, the evaluating the topology identification function of the power distribution substation based on the evaluation value of the topology identification function of the power distribution substation includes:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
In an optimal implementation mode, the invention also provides a testing method based on the topology identification function evaluation method of the distribution area, wherein the main mode of topology identification is that a fusion terminal is matched with an LTU (Line Terminating Unit, a line termination unit) or other modules, the topology identification function is realized, when the line topology is changed, the fusion terminal is matched with the LTU or other modules to be capable of being rapidly identified, a new topology file (json) is produced, the master station is informed of topology update, the master station calls the latest json file, and a new topology graph is drawn according to the json.
Creating a platform topology identification test case:
considering that the intelligent construction of the distribution transformer area is complex as a whole, the topology identification of the whole large transformer area is hoped to be realized gradually from simple to complex in terms of programming of test cases. List of test cases table 1:
TABLE 1
The topology identification test cases can be divided into two cases of loading and unloading in each case for testing respectively. The specific test steps mainly comprise initializing a log, reading a file, initializing a topology flow, clearing a topology record of node equipment, starting the topology triggering flow when a master station issues a triggering instruction, and circularly judging whether the equipment receives a triggering signal; entering a topology identification process after meeting the condition of triggering the topology process, circularly judging whether information such as equipment addresses, equipment types and the like of files are changed, and analyzing equipment topology lines; and finally generating a topological relation file and other flows. The specific flow chart refers to fig. 2.
Six test scenarios are provided for the intelligent area under the conditions of single line, single area, whole area and load or not, the invention takes a large area topology identification scheme as an example, a large area topology diagram is shown in figure 3, and the main test steps after topology initialization and tested terminal state verification are as follows:
1. and issuing an instruction through a standard measurement and control unit. All meters were put into RLC load.
2. The standard measurement and control unit issues instructions, and the switch #01, the switch #03, the switch #04, the switch #06, the switch #07, the switch #08, the switch #031, the switch #032, the switch #033, the switch #071, the switch #072 and the switch #073 are closed.
3. And the master station transmits a topology identification command to the #1 platform region and the #2 platform region fusion terminal.
4. After the topology identification is completed, the fusion terminal reports the topology identification completion SOE to the master station.
5. And calling the master station, and uploading topology summary data to the master station by the fusion terminal.
6. And the master station analyzes the topology data message and patterns the topology.
7. The switch positions are called to judge, and all the position information can meet the following table 2.
TABLE 2
| Switch | #01 | #02 | #03 | #04 | #05 | #06 | #07 | #08 | #09 | #010 | ||
| Status of | Closing device | Closing device | Closing device | Closing device | Dividing into | Closing device | Closing device | Closing device | Dividing into | Dividing into | ||
| Switch | #031 | #032 | #033 | #041 | #042 | #043 | #071 | #072 | #073 | #081 | #082 | #083 |
| Status of | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device | Closing device |
8. And analyzing the topology data message, calculating various indexes of topology identification, and calling the tested terminal and the measurement and control terminal to remotely measure and signal. And judging the test conclusion, and giving out relevant test data.
9. And finally, resetting the system state, disconnecting the measurement and control unit from the tested equipment, and filling in the test description.
Analysis of test results:
taking the building area as an example to verify the evaluation model, the test result data are shown in table 3:
TABLE 3 Table 3
| Index (I) | Topological position fitness | Line/station topology identification rate | Topology identification time |
| Calculation formula | M＝P/U | K＝G/L | Tm＝Tn-Tk |
| Calculation result | 99％ | 98％ | 36min |
Analyzing and evaluating the corresponding test results according to the evaluation indexes, wherein the evaluation results are shown in table 4:
TABLE 4 Table 4
And analyzing the grading result, wherein each index of the system topology identification reaches more than excellent, and the total score of the system can be calculated according to the comprehensive evaluation analysis method and reaches 93.2013, so that the area shows good performance in the aspect of the comprehensive capability of the topology identification, but can be further upgraded and improved in the aspect of the time of the topology identification.
Example 2
Based on the same inventive concept, the invention also provides a topology identification function evaluation device of a power distribution area, as shown in fig. 4, the topology identification function evaluation device of the power distribution area comprises:
the acquisition module is used for acquiring index values of the indexes corresponding to the topology identification result of the power distribution area;
the determining module is used for determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
and the evaluation module is used for evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
Preferably, the topology identification result correspondence index of the distribution area includes at least one of the following: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
Further, the obtaining module is specifically configured to calculate the topology identification rate according to the following formula:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
Further, the obtaining module is specifically configured to determine the degree of matching of the topological positions according to the following formula:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
Further, the obtaining module is specifically configured to obtain the topology identification time coefficient in the following manner:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
Preferably, the weight of the index corresponding to the topology identification result of the distribution area is obtained by adopting a hierarchical analysis method.
Preferably, the determining module is specifically configured to determine an evaluation value of a topology identification function of the distribution area according to the following formula:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i And n is the total number of indexes corresponding to the topology identification result of the power distribution area.
Preferably, the evaluation module is specifically configured to:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
Example 3
Based on the same inventive concept, the invention also provides a computer device comprising a processor and a memory for storing a computer program comprising program instructions, the processor for executing the program instructions stored by the computer storage medium. The processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application SpecificIntegrated Circuit, ASIC), off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc., which are the computational core and control core of the terminal adapted to implement one or more instructions, in particular to load and execute one or more instructions in a computer storage medium to implement the corresponding method flow or corresponding functions, to implement the steps of a topology identification function evaluation method of a distribution area in the above embodiment.
Example 4
Based on the same inventive concept, the present invention also provides a storage medium, in particular, a computer readable storage medium (Memory), which is a Memory device in a computer device, for storing programs and data. It is understood that the computer readable storage medium herein may include both built-in storage media in a computer device and extended storage media supported by the computer device. The computer-readable storage medium provides a storage space storing an operating system of the terminal. Also stored in the memory space are one or more instructions, which may be one or more computer programs (including program code), adapted to be loaded and executed by the processor. The computer readable storage medium herein may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. One or more instructions stored in a computer-readable storage medium may be loaded and executed by a processor to implement the steps of a topology identification function evaluation method for a power distribution substation in the above-described embodiments.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (18)
1. A topology identification function evaluation method of a power distribution substation, the method comprising:
acquiring index values of indexes corresponding to topology identification results of the power distribution transformer areas;
determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
and evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
2. The method of claim 1, wherein the topology identification result correspondence indicator of the power distribution substation comprises at least one of: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
3. The method of claim 2, wherein the topology identification rate is calculated as follows:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
4. The method of claim 2, wherein the topological position fitness is calculated as follows:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
5. The method of claim 2, wherein the topology identification time coefficient acquisition process comprises:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
6. The method of claim 1, wherein the weights of the topology identification result correspondence indicators of the distribution transformer area are obtained by using a hierarchical analysis method.
7. The method according to claim 1, wherein the evaluation value of the topology identification function of the distribution transformer area is calculated as follows:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i And n is the total number of indexes corresponding to the topology identification result of the power distribution area.
8. The method of claim 1, wherein the evaluating the topology identification function of the distribution substation based on the evaluation value of the topology identification function of the distribution substation comprises:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
9. A topology identification function evaluation apparatus of a power distribution substation, characterized by comprising:
the acquisition module is used for acquiring index values of the indexes corresponding to the topology identification result of the power distribution area;
the determining module is used for determining an evaluation value of the topology identification function of the power distribution area based on the index value and the weight of the index corresponding to the topology identification result of the power distribution area;
and the evaluation module is used for evaluating the topology identification function of the power distribution area based on the evaluation value of the topology identification function of the power distribution area.
10. The apparatus of claim 9, wherein the topology identification result correspondence indicator of the power distribution substation comprises at least one of: topology identification rate, topology position coincidence degree, and topology identification time coefficient.
11. The apparatus of claim 10, wherein the obtaining module is specifically configured to calculate the topology identification rate according to the following equation:
K＝G/L
in the above formula, K is the topology recognition rate, G is the sum of the number of intelligent switches and intelligent meters displayed in the reported topology file, and L is the sum of the number of intelligent switches and intelligent meters actually participating in topology recognition.
12. The apparatus of claim 10, wherein the obtaining module is specifically configured to match the topological location according to the following formula:
M＝P/U
in the above formula, M is the degree of coincidence of the topological positions, P is the number of topological nodes in the topological file, which coincide with the actual topological nodes, and U is the number of topological nodes actually participating in the topology.
13. The apparatus of claim 10, wherein the obtaining module is specifically configured to obtain the topology identification time coefficient as follows:
the topology identification time is determined as follows:
Tm＝Tn-Tk
taking a normalization value corresponding to the topology identification time as the topology identification time coefficient;
tm is topology identification time, tn is time when the fusion terminal reports the SOE message of topology completion, and Tk is time when the master station issues a topology identification command.
14. The apparatus of claim 9, wherein the weights of the topology identification result correspondence indicators of the distribution transformer area are obtained by using a hierarchical analysis method.
15. The apparatus according to claim 9, wherein the determining module is specifically configured to determine an evaluation value of a topology identification function of the distribution transformer area according to the following formula:
in the above formula, P is the evaluation value of the topology identification function of the distribution area, P i Index value omega corresponding to ith index for topology identification result of distribution area i And n is the total number of indexes corresponding to the topology identification result of the power distribution area.
16. The apparatus of claim 9, wherein the evaluation module is specifically configured to:
if the evaluation value of the topology identification function of the power distribution station is not smaller than the preset threshold, the topology identification function of the power distribution station is qualified, otherwise, the topology identification function of the power distribution station is not qualified.
17. A computer device, comprising: one or more processors;
the processor is used for storing one or more programs;
the topology identification function evaluation method of the power distribution substation according to any one of claims 1 to 8 is implemented when the one or more programs are executed by the one or more processors.
18. A computer-readable storage medium, on which a computer program is stored, which, when executed, implements the topology identification function evaluation method of the distribution substation area according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980667.7A CN117639086A (en) | 2022-08-16 | 2022-08-16 | Topology identification function evaluation method and device for power distribution area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980667.7A CN117639086A (en) | 2022-08-16 | 2022-08-16 | Topology identification function evaluation method and device for power distribution area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117639086A true CN117639086A (en) | 2024-03-01 |
Family
ID=90029195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210980667.7A Pending CN117639086A (en) | 2022-08-16 | 2022-08-16 | Topology identification function evaluation method and device for power distribution area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117639086A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117972401A (en) * | 2024-04-02 | 2024-05-03 | 深圳市科沃电气技术有限公司 | Control method, device, equipment and storage medium of power grid global topology |
-
2022
- 2022-08-16 CN CN202210980667.7A patent/CN117639086A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117972401A (en) * | 2024-04-02 | 2024-05-03 | 深圳市科沃电气技术有限公司 | Control method, device, equipment and storage medium of power grid global topology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104134999B (en) | Distribution network based on multi-data source measures the practical method of calculation of efficiency analysis | |
| CN104794206B (en) | A kind of substation data QA system and method | |
| CN107317394B (en) | Anti-misoperation method, device and system for scheduling operation ticket | |
| CN103872681A (en) | Online real-time loop closing method based on integration of major network and distribution network | |
| CN111537939A (en) | Voltage transformer state evaluation method and device based on multi-index fusion | |
| CN111999692B (en) | Multi-table error calibration method and device | |
| CN110146743A (en) | A kind of area's phase recognition methods | |
| CN110907754B (en) | Fault line severity evaluation method based on PSD-BPA | |
| CN105119282A (en) | On-line calculation system and method for theoretical line loss of power grid | |
| CN103324858A (en) | Three-phase load flow state estimation method of power distribution network | |
| CN117639086A (en) | Topology identification function evaluation method and device for power distribution area | |
| CN105243232A (en) | Electromagnetic transient simulation method and system for integrating field analysis into electric network to determine | |
| CN114915546A (en) | Method, device, equipment and medium for positioning power failure user | |
| CN113033617A (en) | Deep mining analysis method based on line loss data of big data transformer area | |
| CN111525495A (en) | Relay protection fixed value online checking method and system and computer storage medium | |
| CN111313399B (en) | Method, device and system for confirming topological relation of regional power utilization network | |
| CN108596450B (en) | Power grid risk early warning method and system | |
| CN105843736B (en) | Test method of power system state estimation software | |
| CN112215482A (en) | Method and device for identifying user variable relationship | |
| CN105572504A (en) | Control method and system of electricity theft detection used for medium and low voltage mixed power distribution network | |
| Primadianto et al. | Performance comparison of distribution system state estimation methods | |
| Rahimi et al. | On external network model development | |
| CN114912853A (en) | Method and device for evaluating stability of power grid | |
| CN109871998B (en) | Power distribution network line loss rate prediction method and device based on expert sample library | |
| CN109375055B (en) | Detection method, system and device of phasor measurement system and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |