CN117544518A - Method and system for identifying topology of transformer area and intelligent transformer area terminal - Google Patents
Method and system for identifying topology of transformer area and intelligent transformer area terminal Download PDFInfo
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Abstract
The invention discloses a method and a system for identifying a topology of a transformer area and an intelligent transformer area terminal, and relates to the technical field of electric power. The invention comprises the following steps: acquiring a communication network among all intelligent sensing units, and information of adjacent switches and monitoring switch information; the intelligent platform region terminal determines an initial topological relation according to the analysis results reported by the intelligent sensing units; extracting carrier signal-to-noise ratio; generating a total table of physical connection of the station area; the intelligent platform area terminal determines the credibility score of the intelligent sensing unit; and (5) completing identification error correction and physical connection branch circuit phase calibration. According to the invention, by acquiring the communication network among the intelligent sensing units, the information of the adjacent switches and the information of the monitoring switches, generating a total table of the physical connection of the platform area according to the carrier signal to noise ratio of the mutual communication, and completing identification error correction and the calibration of the physical connection branch by combining the reliability score, the correct, stable and reliable dynamic update of the topology of the platform area is realized.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a method and a system for identifying a topology of a district and an intelligent district terminal.
Background
Along with the rapid development of the automation technology of the power system, the requirement on the electric energy quality is continuously improved, and a plurality of intelligent monitoring devices are needed to be additionally arranged in a power supply area (namely a station area) of a single low-voltage intelligent sensing unit and used for monitoring the state of a transformer, the state of a line, the power supply quality, analyzing and positioning the line loss and faults of a power supply line, accessing, controlling and controlling new energy devices, managing the electric energy quality and the like.
With the increase of devices in the area, the topology structure between the devices in the area becomes more and more complex, so that it is necessary to comb the topology relationship of the devices in the area, so as to improve the management efficiency of the devices in the area.
Disclosure of Invention
The invention aims to provide a method and a system for identifying a topology of a platform and an intelligent platform terminal, which solve the problems of incorrect generation and insufficient stability of the existing platform topology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for identifying a topology of a platform, which comprises the following steps:
step S1: when the intelligent platform area terminal determines that the topology identification condition is met, acquiring a communication network among all intelligent sensing units, information of adjacent switches and monitoring switch information;
step S2: the intelligent platform area terminal determines initial topological relations among the intelligent platform area terminal, the intelligent sensing units and the switches according to the analysis results reported by the intelligent sensing units;
step S3: extracting carrier signal-to-noise ratios of mutual communication among the intelligent platform area terminal, each intelligent sensing unit and each switch;
step S4: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S5: the intelligent platform region terminal determines the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit;
step S6: based on the physical connection relation among all communication nodes of the total table of the physical connection of the station area, the identification error correction and the corresponding calibration of the branch circuits of the physical connection are completed by combining the reliability score.
In the step S1, when the intelligent platform terminal queries, the intelligent platform terminal needs to send a topology query request, and after receiving the query request, the intelligent platform terminal detects the attribute and state of the monitoring switch, and then checks whether the intelligent platform terminal has an adjacent switch; if no adjacent switch is inquired, the inquiry of the intelligent platform terminal is stopped, and then the state and attribute information of the switch are returned to the main control intelligent terminal; if the adjacent switch is inquired, the communication addresses of the monitoring switch and the intelligent platform area terminal of the next adjacent switch are required to be returned to the main control intelligent terminal, and the main control intelligent switch sends a topology inquiry request to the intelligent platform area terminal of the next adjacent switch after receiving the information.
As a preferred technical solution, in the step S1, the topology identification condition is satisfied, including: reaching a preset topology identification period; or detecting that a new intelligent sensing unit is connected to the network; alternatively, the identified topological relationship differs at least twice in succession.
As a preferable technical solution, in step S2, the specific workflow of the intelligent substation terminal is as follows:
step S21: actively constructing a communication network between all branch communication nodes through an automatic networking technology, and autonomously negotiating the type and the frequency point of a communication channel;
step S22: loading a power carrier signal in an intelligent sensing unit;
step S23: extracting carrier signal-to-noise ratios of mutual communication between communication nodes;
step S24: determining adjacent communication nodes, communication nodes of upper and lower branches and communication nodes of side branches based on carrier signal-to-noise ratios, and generating a connection table;
step S25: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S26: a low voltage distribution substation topology is generated based on the connection summary table.
In step S21, the communication network is actively established between the branch communication nodes through an automatic networking technology, including actively establishing the communication network between the branch communication nodes through the automatic networking technology, and autonomously negotiating the communication channel type and the frequency point, so as to realize automatic information relay and transmission.
As a preferred technical solution, in step S2, the determining, by using the analysis result reported by each intelligent sensing unit, the initial topological relation among the intelligent platform terminal, each intelligent sensing unit, and each switch includes: corresponding to any intelligent sensing unit, the intelligent platform terminal determines a sub-topology relationship corresponding to any intelligent sensing unit according to the time of generating the characteristic current signal by any intelligent sensing unit, the analysis time of reporting the analysis result and the characteristic code value in the analysis result, and the sub-topology relationship characterizes the hierarchical relationship between the intelligent sensing unit reporting the analysis result and any intelligent sensing unit; and merging the same intelligent sensing units in the sub-topological relations corresponding to the intelligent sensing units to obtain an initial topological relation.
As a preferred technical solution, in step S5, the reliability score of each intelligent sensing unit is controlled from low to high sequentially to generate the characteristic current signal.
As a preferred technical solution, for any one of the intelligent sensing units, the intelligent transformer area terminal controls any one of the intelligent sensing units to generate a characteristic current signal, and if no analysis result reported by any other intelligent sensing unit is received, any one of the intelligent sensing units is a newly accessed intelligent sensing unit, any one of the intelligent sensing units is removed.
The invention relates to a district topology recognition system, which comprises an intelligent district terminal, a plurality of intelligent sensing units and a plurality of switches;
the intelligent platform area terminal is arranged on target equipment of a power system of the platform area; when the intelligent platform terminal determines that the topology identification condition is met, the intelligent platform terminal sequentially controls each intelligent sensing unit to generate characteristic current signals, and the characteristic current signals are superposed into a current loop of a power system of the platform
The intelligent sensing unit is arranged on a non-target device of the power system; the historical topology information of the intelligent sensing units determines the credibility score of each intelligent sensing unit in the initial topology relation; the intelligent sensing units with the reliability scores meeting the low-reliability condition are removed from the initial topological relation to obtain the target topological relation identified at the time;
the switch comprises a switch name, a switch attribute and a topological graph connection relation of the switch, and is used for being added into the target topological relation identified by the intelligent sensing unit.
The invention relates to an intelligent platform terminal, which comprises an intelligent platform terminal arranged on target equipment of an electric power system of a platform, and comprises: the control module is used for sequentially controlling each intelligent sensing unit to generate a characteristic current signal when the topology identification condition is determined to be met, and overlapping the characteristic current signal into a current loop of a power system of the platform region, so that after any intelligent sensing unit generates the characteristic current signal, if other intelligent sensing units detect the characteristic current signal, the characteristic current signal is analyzed to obtain an analysis result, and the analysis result is reported to the intelligent platform region terminal; the identification module is used for determining initial topological relations between the intelligent platform area terminal and each intelligent sensing unit according to analysis results reported by each intelligent sensing unit; determining the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit; and removing the intelligent sensing units with the reliability scores meeting the low-reliability condition from the initial topological relation to obtain the identified target topological relation.
The invention has the following beneficial effects:
according to the invention, by acquiring the communication network among the intelligent sensing units, the information of the adjacent switches and the information of the monitoring switches, generating a total table of the physical connection of the platform area according to the carrier signal to noise ratio of the mutual communication, and completing identification error correction and the calibration of the physical connection branch by combining the reliability score, the correct, stable and reliable dynamic update of the topology of the platform area is realized.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for identifying a topology of a cell in accordance with the present invention;
fig. 2 is a schematic structural diagram of a topology identification system of a platform according to the present invention;
fig. 3 is a specific working flow chart of the intelligent platform terminal of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1, the present invention is a method for identifying a topology of a cell, comprising the following steps:
step S1: when the intelligent platform area terminal determines that the topology identification condition is met, acquiring a communication network among all intelligent sensing units, information of adjacent switches and monitoring switch information;
when the intelligent area terminal inquires, the intelligent area terminal is required to send a topology inquiry request, and after the intelligent area terminal receives the inquiry request, the intelligent area terminal detects the attribute and the state of the monitoring switch and then checks whether the intelligent area terminal has an adjacent switch or not; if no adjacent switch is inquired, the inquiry of the intelligent platform terminal is stopped, and then the state and attribute information of the switch are returned to the main control intelligent terminal; if the adjacent switch is inquired, the communication addresses of the monitoring switch and the intelligent platform area terminal of the next adjacent switch are required to be returned to the main control intelligent terminal, the main control intelligent switch sends a topology inquiry request to the intelligent platform area terminal of the next adjacent switch after receiving the information, and the communication network among all intelligent sensing units, the information of the adjacent switch and the information of the monitoring switch are acquired to provide data support for constructing a topology map.
Meeting topology identification conditions includes: reaching a preset topology identification period; or detecting that a new intelligent sensing unit is connected to the network; alternatively, the identified topological relationship differs at least twice in succession.
Step S2: the intelligent platform area terminal determines initial topological relations among the intelligent platform area terminal, the intelligent sensing units and the switches according to the analysis results reported by the intelligent sensing units;
referring to fig. 3, in step S2, the specific workflow of the intelligent substation terminal is as follows:
step S21: actively constructing a communication network between all branch communication nodes through an automatic networking technology, and autonomously negotiating the type and the frequency point of a communication channel;
step S22: loading a power carrier signal in an intelligent sensing unit;
step S23: extracting carrier signal-to-noise ratios of mutual communication between communication nodes;
step S24: determining adjacent communication nodes, communication nodes of upper and lower branches and communication nodes of side branches based on carrier signal-to-noise ratios, and generating a connection table;
step S25: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S26: a low voltage distribution substation topology is generated based on the connection summary table.
In step S21, the communication network is actively established between the branch communication nodes through an automatic networking technology, including actively establishing the communication network between the branch communication nodes through an automatic networking technology, and autonomously negotiating the communication channel type and the frequency point, so as to realize automatic information relay and transmission.
In step S2, determining initial topological relations among the intelligent platform terminal, the intelligent sensing units and the switches according to the analysis results reported by the intelligent sensing units, including: corresponding to any intelligent sensing unit, the intelligent platform terminal determines a sub-topology relationship corresponding to any intelligent sensing unit according to the time of generating the characteristic current signal by any intelligent sensing unit, the analysis time of reporting the analysis result and the characteristic code value in the analysis result, and the sub-topology relationship characterizes the hierarchical relationship between the intelligent sensing unit reporting the analysis result and any intelligent sensing unit; and merging the same intelligent sensing units in the sub-topological relations corresponding to the intelligent sensing units to obtain an initial topological relation.
Step S3: extracting carrier signal-to-noise ratios of mutual communication among the intelligent platform area terminal, each intelligent sensing unit and each switch;
step S4: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S5: the intelligent platform region terminal determines the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit;
in step S5, the reliability scores of the intelligent sensing units sequentially control the intelligent sensing units from low to high to generate the characteristic current signals.
For any intelligent sensing unit, after the intelligent platform terminal controls any intelligent sensing unit to generate a characteristic current signal, if the analysis result reported by any other intelligent sensing unit is not received, and any intelligent sensing unit is a newly-accessed intelligent sensing unit, any intelligent sensing unit is removed.
Step S6: based on the physical connection relation among all communication nodes of the total table of the physical connection of the station area, the identification error correction and the corresponding calibration of the branch circuits of the physical connection are completed by combining the reliability score.
Referring to fig. 2, the present invention is a system for identifying a topology of a platform, including an intelligent platform terminal, a plurality of intelligent sensing units and a plurality of switches;
the intelligent platform area terminal is arranged on target equipment of a power system of the platform area; when the intelligent platform area terminal determines that the topology identification condition is met, each intelligent sensing unit is controlled to generate a characteristic current signal in sequence, and the characteristic current signal is superposed into a current loop of a power system of the platform area.
The intelligent sensing unit is arranged on a non-target device of the power system; the historical topology information of the intelligent sensing units determines the credibility score of each intelligent sensing unit in the initial topology relation; the intelligent sensing units with the reliability scores meeting the low-reliability condition are removed from the initial topological relation to obtain the target topological relation identified at the time;
the switch comprises a switch name, a switch attribute and a topological graph connection relation of the switch, and is used for being added into the target topological relation identified by the intelligent sensing unit.
The invention relates to an intelligent platform terminal, which comprises an intelligent platform terminal arranged on target equipment of an electric power system of a platform, wherein the intelligent platform terminal comprises: the control module is used for sequentially controlling each intelligent sensing unit to generate a characteristic current signal when the topology identification condition is determined to be met, and overlapping the characteristic current signal into a current loop of a power system of the platform region, so that after any intelligent sensing unit generates the characteristic current signal, if other intelligent sensing units detect the characteristic current signal, the characteristic current signal is analyzed to obtain an analysis result, and the analysis result is reported to an intelligent platform region terminal; the identification module is used for determining initial topological relations between the intelligent platform area terminal and each intelligent sensing unit according to the analysis results reported by each intelligent sensing unit; determining the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit; and removing the intelligent sensing units with the reliability scores meeting the low-reliability condition from the initial topological relation to obtain the identified target topological relation.
One specific application of this embodiment is:
when the intelligent platform area terminal meets one of the topology identification conditions:
(1) Reaching a preset topology identification period;
(2) Detecting that a new intelligent sensing unit is connected to the network;
(3) The topological relationships identified at least twice in succession are different.
The communication network among the intelligent sensing units, the information of the adjacent switches and the information of the monitoring switches can be obtained.
When the intelligent area terminal inquires, the intelligent area terminal is required to send a topology inquiry request, and after the intelligent area terminal receives the inquiry request, the intelligent area terminal detects the attribute and the state of the monitoring switch and then checks whether the intelligent area terminal has an adjacent switch or not; if no adjacent switch is inquired, the inquiry of the intelligent platform terminal is stopped, and then the state and attribute information of the switch are returned to the main control intelligent terminal; if the adjacent switch is inquired, the communication addresses of the monitoring switch and the intelligent platform area terminal of the next adjacent switch are required to be returned to the main control intelligent terminal, and the main control intelligent switch sends a topology inquiry request to the intelligent platform area terminal of the next adjacent switch after receiving the information.
The intelligent platform area terminal determines initial topological relations among the intelligent platform area terminal, the intelligent sensing units and the switches according to the analysis results reported by the intelligent sensing units; the specific working flow of the intelligent station area terminal is as follows:
step S21: actively constructing a communication network between all branch communication nodes through an automatic networking technology, and autonomously negotiating the type and the frequency point of a communication channel; the communication network is actively established among all branch communication nodes through an automatic networking technology, and the communication network is actively established among all branch communication nodes through the automatic networking technology, so that the type and the frequency point of a communication channel are autonomously negotiated, and the automatic relay and the transmission of information are realized;
step S22: loading a power carrier signal in an intelligent sensing unit;
step S23: extracting carrier signal-to-noise ratios of mutual communication between communication nodes;
step S24: determining adjacent communication nodes, communication nodes of upper and lower branches and communication nodes of side branches based on carrier signal-to-noise ratios, and generating a connection table;
step S25: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S26: a low voltage distribution substation topology is generated based on the connection summary table.
The analysis result reported by each intelligent sensing unit determines the initial topological relation among the intelligent platform area terminal, each intelligent sensing unit and each switch, and the analysis result comprises the following steps: corresponding to any intelligent sensing unit, the intelligent platform terminal determines a sub-topology relationship corresponding to any intelligent sensing unit according to the time of generating the characteristic current signal by any intelligent sensing unit, the analysis time of reporting the analysis result and the characteristic code value in the analysis result, and the sub-topology relationship characterizes the hierarchical relationship between the intelligent sensing unit reporting the analysis result and any intelligent sensing unit; and merging the same intelligent sensing units in the sub-topological relations corresponding to the intelligent sensing units to obtain an initial topological relation.
Extracting carrier signal-to-noise ratios of mutual communication among the intelligent platform terminal, each intelligent sensing unit and each switch according to the initial topological relation; all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment; the intelligent platform region terminal determines the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit; based on the physical connection relation among all communication nodes of the total table of the physical connection of the station area, the identification error correction and the corresponding calibration of the branch circuits of the physical connection are completed by combining the reliability score.
It should be noted that, in the above system embodiment, each unit included is only divided according to the functional logic, but not limited to the above division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
In addition, those skilled in the art will appreciate that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program to instruct related hardware, and the corresponding program may be stored in a computer readable storage medium.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The method for identifying the topology of the station area is characterized by comprising the following steps:
step S1: when the intelligent platform area terminal determines that the topology identification condition is met, acquiring a communication network among all intelligent sensing units, information of adjacent switches and monitoring switch information;
step S2: the intelligent platform area terminal determines initial topological relations among the intelligent platform area terminal, the intelligent sensing units and the switches according to the analysis results reported by the intelligent sensing units;
step S3: extracting carrier signal-to-noise ratios of mutual communication among the intelligent platform area terminal, each intelligent sensing unit and each switch;
step S4: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S5: the intelligent platform region terminal determines the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit;
step S6: based on the physical connection relation among all communication nodes of the total table of the physical connection of the station area, the identification error correction and the corresponding calibration of the branch circuits of the physical connection are completed by combining the reliability score.
2. The method for identifying the topology of the area according to claim 1, wherein in the step S1, when the intelligent area terminal queries, the intelligent area terminal is required to send out a topology query request, and after receiving the query request, the intelligent area terminal detects the attribute and the state of the monitoring switch and then checks whether the intelligent area terminal has an adjacent switch; if no adjacent switch is inquired, the inquiry of the intelligent platform terminal is stopped, and then the state and attribute information of the switch are returned to the main control intelligent terminal; if the adjacent switch is inquired, the communication addresses of the monitoring switch and the intelligent platform area terminal of the next adjacent switch are required to be returned to the main control intelligent terminal, and the main control intelligent switch sends a topology inquiry request to the intelligent platform area terminal of the next adjacent switch after receiving the information.
3. The method for identifying a topology of a cell according to claim 1, wherein in the step S1, the topology identification condition is satisfied, comprising: reaching a preset topology identification period; or detecting that a new intelligent sensing unit is connected to the network; alternatively, the identified topological relationship differs at least twice in succession.
4. The method for identifying a topology of a domain according to claim 1, wherein in step S2, the specific workflow of the intelligent domain terminal is as follows:
step S21: actively constructing a communication network between all branch communication nodes through an automatic networking technology, and autonomously negotiating the type and the frequency point of a communication channel;
step S22: loading a power carrier signal in an intelligent sensing unit;
step S23: extracting carrier signal-to-noise ratios of mutual communication between communication nodes;
step S24: determining adjacent communication nodes, communication nodes of upper and lower branches and communication nodes of side branches based on carrier signal-to-noise ratios, and generating a connection table;
step S25: all branch communication nodes upload the connection table through a communication network, and the main communication node gathers the information of the connection table and generates a table physical connection summary table through step-by-step logic judgment;
step S26: a low voltage distribution substation topology is generated based on the connection summary table.
5. The method according to claim 4, wherein in step S21, the communication network is actively established between the branch communication nodes through an automatic networking technology, including actively establishing the communication network between the branch communication nodes through the automatic networking technology, and autonomously negotiating the communication channel type and the frequency point to realize automatic information relay and transmission.
6. The method of claim 1, wherein in step S2, the determining the initial topological relation among the intelligent platform terminal, the intelligent sensing units and the switches according to the analysis result reported by the intelligent sensing units includes: corresponding to any intelligent sensing unit, the intelligent platform terminal determines a sub-topology relationship corresponding to any intelligent sensing unit according to the time of generating the characteristic current signal by any intelligent sensing unit, the analysis time of reporting the analysis result and the characteristic code value in the analysis result, and the sub-topology relationship characterizes the hierarchical relationship between the intelligent sensing unit reporting the analysis result and any intelligent sensing unit; and merging the same intelligent sensing units in the sub-topological relations corresponding to the intelligent sensing units to obtain an initial topological relation.
7. The method according to claim 1, wherein in step S5, the reliability scores of the intelligent sensing units are sequentially controlled from low to high to generate the characteristic current signals.
8. The method for identifying a topology of a cell according to claim 7, wherein, for any one of the intelligent sensing units, the intelligent cell terminal controls any one of the intelligent sensing units to generate a characteristic current signal, if no analysis result reported by any other intelligent sensing unit is received, and any one of the intelligent sensing units is a newly accessed intelligent sensing unit, any one of the intelligent sensing units is eliminated.
9. The platform region topology identification system is characterized by comprising an intelligent platform region terminal, a plurality of intelligent sensing units and a plurality of switches;
the intelligent platform area terminal is arranged on target equipment of a power system of the platform area; when the intelligent platform terminal determines that the topology identification condition is met, the intelligent platform terminal sequentially controls each intelligent sensing unit to generate characteristic current signals, and the characteristic current signals are superposed into a current loop of a power system of the platform
The intelligent sensing unit is arranged on a non-target device of the power system; the historical topology information of the intelligent sensing units determines the credibility score of each intelligent sensing unit in the initial topology relation; the intelligent sensing units with the reliability scores meeting the low-reliability condition are removed from the initial topological relation to obtain the target topological relation identified at the time;
the switch comprises a switch name, a switch attribute and a topological graph connection relation of the switch, and is used for being added into the target topological relation identified by the intelligent sensing unit.
10. An intelligent block terminal, wherein the intelligent block terminal is arranged on a target device of a power system of a block, the intelligent block terminal comprising: the control module is used for sequentially controlling each intelligent sensing unit to generate a characteristic current signal when the topology identification condition is determined to be met, and overlapping the characteristic current signal into a current loop of a power system of the platform region, so that after any intelligent sensing unit generates the characteristic current signal, if other intelligent sensing units detect the characteristic current signal, the characteristic current signal is analyzed to obtain an analysis result, and the analysis result is reported to the intelligent platform region terminal; the identification module is used for determining initial topological relations between the intelligent platform area terminal and each intelligent sensing unit according to analysis results reported by each intelligent sensing unit; determining the credibility score of each intelligent sensing unit in the initial topological relation according to the historical topological information of each intelligent sensing unit; and removing the intelligent sensing units with the reliability scores meeting the low-reliability condition from the initial topological relation to obtain the identified target topological relation.
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