CN109066990B - Centralized scheduling-based platform area power grid terminal disturbance topological structure identification method - Google Patents
Centralized scheduling-based platform area power grid terminal disturbance topological structure identification method Download PDFInfo
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Abstract
The invention discloses a method for identifying a terminal disturbance topological structure of a power grid in a transformer area based on centralized scheduling, relates to the technology of information processing and automatic identification of a power system, and belongs to the technical field of power generation, power transformation or power distribution. The method comprises the steps of constructing a network routing topological relation of an intelligent sensing system of the low-voltage distribution network, identifying the type of acquisition equipment in the constructed network routing topological relation, constructing a physical topological structure of a meter box monitoring unit and a physical topological structure of a branch box monitoring unit from bottom to top in a traversing query mode, eliminating branch box monitoring units and meter box monitoring units without father nodes, and integrating the physical topological structures of the meter box monitoring unit and the branch box monitoring unit according to the relation mapping between the father nodes and the son nodes to obtain a terminal disturbance topological structure of a power grid of a transformer area, so that the method is beneficial to refinement of management and practical application of projects, and can provide an accurate transformer-line-user relation basis file for analysis of sectional line loss and transformer area line loss.
Description
Technical Field
The invention discloses a method for identifying a terminal disturbance topological structure of a power grid in a transformer area based on centralized scheduling, relates to the technology of information processing and automatic identification of a power system, and belongs to the technical field of power generation, power transformation or power distribution.
Background
As the construction of the power utilization information acquisition system of the national power grid company enters a deepened application stage, the requirement of the same industry on standard assessment is increasingly improved, the phenomenon of abnormal line loss of a transformer area due to inaccurate transformer relation of the transformer area caused by management reasons or transformer area cutting and the like is common, and the lean management requirement is difficult to meet.
Aiming at the problem that the basic archives of the household variable relationship of a low-voltage distribution network area are inaccurate, the current processing schemes comprise the following three types: (1) the method judges the district to which the user belongs by the way of power failure of the whole district, and the scheme is easy to cause the reduction of power supply reliability, has large workload and is not easy to implement; (2) the station area user variable relations are identified one by one through the handheld device, the workload is large, the user variable relation calibration needs to be carried out again after the field operation environment is changed (such as station area cutting), and the workload is further increased due to repeated tests; (3) the user variable relation recognition is realized by utilizing a low-voltage power line carrier scheme, the user variable relation is recognized according to the zero-crossing condition of the low-voltage power line carrier or the signal quality, and the recognition accuracy rate of the scheme is low due to serious carrier crosstalk of the low-voltage power line.
In conclusion, the existing solution for inaccurate household variable relation basis files of the low-voltage distribution network area is difficult to support the line loss calculation requirement of the national power grid company area. The invention aims to improve the scheme of realizing the identification of the user variable relationship by using the low-voltage power line carrier scheme, construct a network routing topology by using the ad hoc network of a local communication channel, and carry out centralized scheduling on the constructed network routing topology to realize the online automatic identification of the physical topology of the low-voltage distribution network area.
Disclosure of Invention
The invention aims to provide a district power grid end disturbance topological structure identification method based on centralized scheduling aiming at the defects of the background technology, a network routing topological relation is constructed by means of an ad hoc network of a local communication channel, online automatic identification of the physical topology of a low-voltage distribution network district is realized, the technical problem of inaccurate identification of the existing user variable relation identification scheme is solved, and the calculation requirement of the district line loss can be met.
The invention adopts the following technical scheme for realizing the aim of the invention:
a method for identifying a terminal disturbance topological structure of a power grid in a transformer area based on centralized scheduling,
constructing a low-voltage distribution network intelligent sensing system: a branch box monitoring unit communicated with the platform area intelligent sensing terminal is distributed in the area where the low-voltage cable branch box belongs, and a meter box monitoring unit communicated with the platform area intelligent sensing terminal and the branch box monitoring unit is distributed in the area where the electricity meter box belongs;
constructing a network routing topological relation of a low-voltage distribution network intelligent perception system; the distribution room intelligent sensing terminal sends a self-maintenance instruction to the branch box monitoring unit and the meter box monitoring unit, receives routing node information fed back by the branch box monitoring unit and the meter box monitoring unit and stores a network routing topological relation table of the low-voltage distribution network intelligent sensing system;
identifying the type of the acquisition equipment in the constructed network routing topological relation: the method comprises the following steps that an intelligent sensing terminal of a distribution area sends an instruction for identifying the type of equipment collected by each monitoring point of the distribution area to a branch box monitoring unit and a meter box monitoring unit, and equipment type information returned by the branch box monitoring unit and the meter box monitoring unit is written into a network routing topological relation table;
identifying the disturbance physical topology of the tail end of the power grid of the platform area: the platform area intelligent sensing terminal sends an instruction for identifying the physical topology of the meter box monitoring unit to the meter box monitoring unit and traverses and inquires the identification result of each branch box monitoring unit on the physical topology characteristic signal of the meter box monitoring unit, the method comprises the steps of storing identification results of all branch box monitoring units and a station area intelligent sensing terminal on physical topological characteristic signals of meter box monitoring units to determine physical topological relations of the meter box monitoring units, sending instructions for identifying the physical topologies of the branch box monitoring units to the branch box monitoring units and querying identification results of upstream branch box monitoring units in a traversing mode, storing the identification results of the upstream branch box monitoring units and the station area intelligent sensing terminal on the physical topological characteristic signals of the branch box monitoring units to determine the physical topological relations of the branch box monitoring units, and integrating the physical topological relations of the meter box monitoring units and the physical topological relations of the branch box monitoring units to obtain a station area power grid terminal disturbance topological structure with variable-line-household multilevel physical topological relations.
Further, in the method for identifying the terminal disturbance topological structure of the power grid of the distribution area based on centralized scheduling, the intelligent sensing terminal of the distribution area comprises:
the communication module transmits instructions to the branch box monitoring units or the meter box monitoring units, receives routing node information fed back by the branch box monitoring units and the meter box monitoring units, receives physical topological characteristic signals of the branch box monitoring units and physical topological characteristic signals of the meter box monitoring units, and receives recognition results of the branch box monitoring units on the physical topological characteristic signals of the downstream branch box monitoring units and recognition results of all meter box monitoring units on the physical topological characteristic signals.
Further, in the method for identifying the terminal disturbance topology structure of the power grid in the distribution area based on centralized scheduling, the branch box monitoring unit includes:
the topological relation identification characteristic signal sending module sends a physical topological characteristic signal of the branch box monitoring unit to the district intelligent sensing terminal after receiving an instruction for identifying the physical topology of the branch box monitoring unit,
a topological relation identification module for identifying the physical topological characteristic signals of the downstream branch box monitoring units and the physical topological characteristic signals of all meter box monitoring units,
and the communication module receives an instruction sent by the intelligent sensing terminal of the transformer area, sends routing node information of the communication module to the intelligent sensing terminal of the transformer area, sends a physical topological characteristic signal of the communication module, and uploads an identification result of the physical topological characteristic signal of the monitoring unit of the downstream branch box and identification results of the physical topological characteristic signals of all meter box monitoring units to the intelligent sensing terminal of the transformer area.
Further, the meter box monitoring unit in the identification method of the distribution room power grid end disturbance topological structure based on centralized scheduling comprises the following steps:
a topological relation identification characteristic signal sending module which sends a physical topological characteristic signal of the meter box monitoring unit to the platform area intelligent sensing terminal after receiving an instruction for identifying the physical topology of the meter box monitoring unit,
and the communication module is used for receiving an instruction sent by the intelligent sensing terminal of the transformer area, sending routing node information of the communication module to the intelligent sensing terminal of the transformer area and sending a physical topological characteristic signal of the communication module.
Further, in the method for identifying the terminal disturbance topology structure of the power grid in the transformer area based on centralized scheduling, the routing node information fed back by the branch box monitoring unit and the meter box monitoring unit includes the local branch metering information of the branch box monitoring unit and the local electric energy meter information of the meter box monitoring unit.
Further, in the method for identifying the terminal disturbance topology structure of the power grid of the distribution area based on centralized scheduling, the intelligent sensing terminal of the distribution area identifies the terminal disturbance physical topology of the power grid of the distribution area at regular time or identifies the terminal disturbance physical topology of the power grid of the distribution area when an identification command is input externally or automatically identifies the terminal disturbance physical topology of the power grid of the distribution area when the type of the acquisition equipment is changed.
Further, in the identification method of the terminal disturbance topological structure of the power grid of the distribution area based on centralized scheduling, the method for obtaining the terminal disturbance topological structure of the power grid of the distribution area based on the variable-line-household multi-level physical topological relation by integrating the physical topological relation of the meter box monitoring unit and the physical topological relation of the branch box monitoring unit comprises the following steps: and removing the physical topological relation of the meter box monitoring unit and the branch box monitoring unit and the electricity meter box monitoring unit without a father node in the physical topological relation of the branch box monitoring unit, and mapping and integrating the physical topological relation of the meter box monitoring unit and the physical topological relation of the branch box monitoring unit according to the relation between the father node and the child node to obtain the distribution area power grid tail end disturbance topological structure with the variable-line-household multi-stage physical topological relation.
Still further, in the identification method of the terminal disturbance topological structure of the power grid of the distribution room based on centralized scheduling, the communication module comprises a low-voltage power broadband carrier module and a micropower wireless module.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the method has the advantages that the physical topological relation table of the platform area intelligent sensing terminal, the branch box monitoring unit, the meter box monitoring unit and the electric energy meter multi-stage equipment is established, refinement of management and practical application of projects are facilitated, accurate platform area 'change-line-household' relation basis files can be provided for analysis of subsection line loss and platform area line loss, and technical support and support are provided for application of deepened service expansion.
2. The intelligent sensing terminal of the transformer area initiates self-networking, equipment type identification and physical topology identification of the terminal of a transformer area power grid in a centralized scheduling mode, firstly establishes the network routing topological relation of a sensing system in a timing or triggering mode, and then determines the equipment type of each monitoring point acquisition terminal in a low-voltage power broadband carrier communication or micro-power wireless communication mode, and then, the physical topology identification of the meter box monitoring unit is initiated from bottom to top, then the physical topology identification of the branch box monitoring unit is initiated, the identification result of the physical topology characteristic signal of the lower-level acquisition equipment by the upper-level acquisition equipment is analyzed and integrated to form a multi-level distribution area power grid end disturbance physical topology, and the distribution area intelligent sensing terminal triggers regularly or triggers externally or triggers automatically the distribution area power grid end disturbance physical topology identification, so that the automatic identification of the online physical topology relation is realized, the physical topology relation change caused by the business requirements of power company electric energy meter rotation, distribution area cutting and the like can be identified timely and accurately, a large amount of manpower and financial resources are saved, and the method has obvious advantages compared with other identification methods.
Drawings
FIG. 1 is a diagram of a sensing system of a low-voltage distribution network according to the present invention
FIG. 2 is a schematic diagram illustrating the identification of a disturbance topology structure at the end of a power grid in a distribution room according to the present invention
Fig. 3 is a flow chart of identifying a disturbance physical topology of the terminal of the power grid of the centralized dispatching area.
Detailed Description
The technical scheme of the invention is explained in detail in the following with reference to the attached drawings.
The invention relates to a method for identifying a terminal disturbance topological structure of a power grid in a transformer area based on centralized scheduling, which is characterized in that in a low-voltage power distribution network intelligent sensing system constructed by a transformer area intelligent sensing terminal, a branch box monitoring unit, a meter box monitoring unit and an electric energy meter, as shown in figure 1, the transformer area intelligent sensing terminal is respectively in communication connection with the branch box monitoring unit and the meter box monitoring unit through a local communication module (such as low-voltage power line broadband carrier or micropower wireless and the like), and the transformer area intelligent sensing terminal is used as a centralized scheduling center of the method for identifying the terminal disturbance topological structure of the power grid in the transformer area, and the following steps are operated: the method comprises the steps of constructing a network routing topological relation, identifying the type of acquisition equipment of each monitoring point of a distribution area and constructing a physical topological relation of the distribution area. After the network routing topological relation table is established, the district intelligent sensing terminal queries the types of the acquisition equipment (branch box monitoring units and meter box monitoring units) belonging to the district intelligent sensing terminal one by one to obtain the types of the acquisition equipment, and provides a basic file for the terminal disturbance physical topology identification of the district power grid which is centrally scheduled by the district intelligent sensing terminal. The method comprises the following steps that a platform area intelligent sensing terminal informs a certain meter box monitoring unit to independently send an identification characteristic signal according to the type of equipment governed by the platform area, the platform area intelligent sensing terminal inquires identification results of all branch box monitoring units and a platform area intelligent sensing terminal identification module one by one and stores the identification results, and then the operations are sequentially carried out on other meter box monitoring units until all meter box monitoring units are completely identified; secondly, the platform area intelligent sensing terminal informs a branch box monitoring unit to independently send an identification characteristic signal, the platform area intelligent sensing terminal inquires identification results of all branch box monitoring units and a platform area intelligent sensing terminal identification module one by one and stores the identification results, and then the operations are sequentially carried out on other branch box monitoring units until all branch box monitoring units are completely identified; and finally, the platform area intelligent sensing terminal comprehensively analyzes the identification result of the meter box monitoring unit and the identification result of the branch box monitoring unit to obtain the physical topological relation of the distribution transformer, the branch box and the meter box. The invention realizes a station area power grid tail end disturbance topological structure identification method based on centralized scheduling, adopts a physical topological structure online identification technology initiating disturbance from bottom to top and tail ends, hierarchically constructs a station area physical topology of parent node-child node master-slave relationship as shown in figure 2, comprehensively analyzes the head-tail connection relationship between parent node-child node master-slave relationship, finally constructs a complete station area variable-line (branch box) -household (meter box) physical topological relationship, provides a basic file for subsection line loss analysis and station area line loss analysis, and provides technical support for lean management of a power system.
In the method for identifying the terminal disturbance topological structure of the power grid of the distribution area based on centralized scheduling, a flow chart is shown in fig. 3, in a low-voltage distribution network intelligent sensing system constructed by a distribution area intelligent sensing terminal, a branch box monitoring unit, a meter box monitoring unit and an electric energy meter, the distribution area intelligent sensing terminal is respectively communicated with the branch box monitoring unit and the meter box monitoring unit through a low-voltage power line broadband carrier module or a micropower wireless module, and when the terminal disturbance topological structure of the power grid of the distribution area based on centralized scheduling is identified, the distribution area intelligent sensing terminal operates in the following four steps.
A network routing topological relation construction step, namely establishing a three-layer equipment network routing topological relation table of N branch box monitoring units under the jurisdiction of a platform area intelligent sensing terminal, wherein each branch box monitoring unit is provided with a 3-way metering unit and M meter box monitoring units, and each meter box monitoring unit is provided with J electric energy meters under the jurisdiction, the intelligent sensing terminal of the distribution room comprises a local communication module and a topological relation recognition module, the branch box monitoring unit comprises a local communication module (two independent dual-mode communication modules of a low-voltage power broadband carrier module and a micropower wireless module), a topological relation recognition module and a topological relation recognition characteristic signal sending module, and the meter box monitoring unit comprises a local communication module (two independent dual-mode communication modules of the low-voltage power broadband carrier module and the micropower wireless module) and a topological relation recognition characteristic signal sending module; (remark: the establishment of network routing topological relation is the basis of physical topological relation identification, and the network routing topological relation established by the low-voltage broadband carrier networking cannot truly feed back the physical topological relation of the distribution area due to serious distribution area crosstalk).
The method comprises the steps of judging whether self-maintenance is started or not, namely, a platform area intelligent sensing terminal can start a self-maintenance function in a timing mode or a triggering mode, after a self-maintenance command is issued, a branch box monitoring unit reports information with shunt measurement to the platform area intelligent sensing terminal through a function item specified in a Q/GDW1376.2-2013 concentrator local communication module interface protocol, a meter box monitoring unit reports electric energy meter information obtained by local self-maintenance to the platform area intelligent sensing terminal through a function item specified in a Q/GDW1376.2-2013 concentrator local communication module interface protocol, at the moment, the platform area intelligent sensing terminal cannot know the type of acquisition equipment (a branch box monitoring unit or a meter box monitoring unit), but the platform area intelligent sensing terminal automatically acquires and stores information of each acquisition equipment, and after the self-maintenance is finished, the platform area intelligent sensing terminal, the acquisition equipment (a branch box monitoring unit or a meter box monitoring unit), namely, electricity are established Network routing topology relationships of the energy tables. If the network routing topological relation table in the physical topological relation construction step is not established, the intelligent sensing terminal of the distribution room automatically starts a self-maintenance function to establish the network routing topological relation table; and identifying the type of the acquisition equipment of each monitoring point in the distribution room after the network topology relation table of the topology relation construction step is established.
The method comprises the steps of identifying the types of the acquisition equipment of each monitoring point of a platform area, namely sequentially inquiring the equipment types (a branch box monitoring unit or a meter box monitoring unit) of the acquisition equipment by the platform area intelligent sensing terminal in a command mode according to an established network routing topological relation table, and marking the equipment types returned by the acquisition equipment, so that the types of the acquisition equipment in the network routing topological relation are determined, and a foundation is laid for identifying the terminal disturbance physical topology of a power grid of the platform area from bottom to top.
The method comprises the following steps of (1) identifying disturbance physical topology of the terminal of a power grid of a centralized dispatching area: if the timing identification physical topology is preset, the intelligent sensing terminal of the platform area starts physical topology identification in a timing triggering mode, the intelligent sensing terminal of the platform area starts physical topology identification in an automatic triggering mode when the collected routing node information changes, and the intelligent sensing terminal of the platform area starts physical topology identification in an external triggering mode when a starting instruction is artificially input; after physical topology recognition is started, the platform area intelligent sensing terminal respectively carries out physical topology recognition on meter box monitoring units and branch box monitoring units in steps according to the types of the collecting devices, firstly, circuits of the meter box monitoring units are recognized one by one, then, platform changes or master-slave relations of the branch box monitoring units are recognized, master-slave relations of father nodes and child nodes of the collecting devices are obtained, and the physical topology relations of the platform changes, the branch boxes and the meter boxes are established by utilizing the master-slave relations of recognition results.
Identifying the circuit to which the meter box monitoring unit belongs: the method comprises the following steps that a platform area intelligent sensing terminal informs a certain meter box monitoring unit to send a physical topology identification characteristic signal in a command mode, the meter box monitoring unit generates a characteristic distortion signal after receiving a command, a branch box monitoring unit or a platform area intelligent sensing terminal on the upstream of the meter box monitoring unit automatically identifies the signal and stores an identification result, and the platform area intelligent sensing terminal traverses the identification result of each branch box monitoring unit and the identification result of a self identification module of the platform area intelligent sensing terminal in the command mode and stores an effective identification result; according to the process, the platform area intelligent sensing terminal informs each meter box monitoring unit of sending a physical topology identification characteristic signal through a traversal mode (note: only one meter box monitoring unit is allowed to be informed of sending the physical topology identification characteristic signal every time), and the platform area intelligent sensing terminal obtains the line relation of each meter box monitoring unit and stores the line relation with a 'father node-child node' result until the line identification of all the meter box monitoring units is completed.
Identifying the station change or master-slave relationship to which the branch box monitoring unit belongs: the method comprises the following steps that a distribution area intelligent sensing terminal informs a branch box monitoring unit to send a physical topology identification characteristic signal in a command mode, the branch box monitoring unit generates a characteristic distortion signal after receiving a command, the branch box monitoring unit or the distribution area intelligent sensing terminal at the upstream of the branch box monitoring unit automatically identifies the signal and stores an identification result, and the distribution area intelligent sensing terminal traverses the identification result of each branch box monitoring unit and the identification result of a distribution area intelligent sensing terminal self identification module in the command mode and stores an effective identification result; according to the process, the platform area intelligent sensing terminal informs each branch box monitoring unit of sending a physical topology identification characteristic signal through a traversal mode (note: only one branch box monitoring unit is allowed to be informed of sending the physical topology identification characteristic signal every time), and the platform area intelligent sensing terminal obtains the line relation of each branch box monitoring unit and stores the line relation with a 'father node-son node' result until the line identification of all branch box monitoring units is completed.
The intelligent sensing terminal in the platform area automatically eliminates meter box monitoring units or branch box monitoring units without 'father nodes' in the identification result according to the identification result of the meter box monitoring units and the branch box monitoring units, and then constructs 'variable-line-household' multi-stage physical topological relation according to the relation mapping between 'father nodes-child nodes'.
The preferred scheme of the invention is as follows: the online identification mode from bottom to top is that the intelligent sensing terminal of the transformer area preferentially identifies the meter box monitoring units one by one (similar to a roll call mode) automatically, then identifies the branch box monitoring units one by one automatically, and the intelligent sensing terminal of the transformer area constructs a multi-level physical topological relation of 'variable-line-household' according to the master-slave relation of 'father node-son node' of all identification results. In addition, the intelligent sensing terminal of the transformer area supports the starting of the automatic identification of the physical topological relation in a timing or triggering mode, and when the network topological relation changes after the broadband carrier of the low-voltage power line is networked, the automatic identification of the physical topological relation of the transformer area is automatically triggered.
The method establishes a physical topological relation table of the platform area intelligent sensing terminal, the branch box monitoring unit, the meter box monitoring unit and the electric energy meter multi-stage equipment, is beneficial to refinement of management and practical application of projects, can provide an accurate platform area 'change-line-household' relation basis file for analysis of subsection line loss and platform area line loss, and provides technical support and support for application of deepened service expansion. The method belongs to automatic identification of online physical topological relation, changes of the physical topological relation caused by business requirements of electric energy meter rotation, district cutting and the like of a power company can be identified timely and accurately, a large amount of manpower and financial resources are saved, and the method has obvious advantages compared with other identification methods.
Claims (8)
1. A method for identifying a terminal disturbance topological structure of a power grid of a platform area based on centralized scheduling is characterized in that,
constructing a low-voltage distribution network intelligent sensing system: a branch box monitoring unit communicated with the platform area intelligent sensing terminal is distributed in the area where the low-voltage cable branch box belongs, and a meter box monitoring unit communicated with the platform area intelligent sensing terminal and the branch box monitoring unit is distributed in the area where the electricity meter box belongs;
constructing a network routing topological relation of a low-voltage distribution network intelligent perception system; the distribution room intelligent sensing terminal sends a self-maintenance instruction to the branch box monitoring unit and the meter box monitoring unit, receives routing node information fed back by the branch box monitoring unit and the meter box monitoring unit and stores a network routing topological relation table of the low-voltage distribution network intelligent sensing system;
identifying the type of the acquisition equipment in the constructed network routing topological relation: the method comprises the following steps that an intelligent sensing terminal of a distribution area sends an instruction for identifying the type of equipment collected by each monitoring point of the distribution area to a branch box monitoring unit and a meter box monitoring unit, and equipment type information returned by the branch box monitoring unit and the meter box monitoring unit is written into a network routing topological relation table;
identifying the disturbance physical topology of the tail end of the power grid of the platform area: the platform area intelligent sensing terminal sends an instruction for identifying the physical topology of the meter box monitoring unit to the meter box monitoring unit and traverses and inquires the identification result of each branch box monitoring unit on the physical topology characteristic signal of the meter box monitoring unit, the method comprises the steps of storing identification results of all branch box monitoring units and a station area intelligent sensing terminal on physical topological characteristic signals of meter box monitoring units to determine physical topological relations of the meter box monitoring units, sending instructions for identifying the physical topologies of the branch box monitoring units to the branch box monitoring units and querying identification results of upstream branch box monitoring units in a traversing mode, storing the identification results of the upstream branch box monitoring units and the station area intelligent sensing terminal on the physical topological characteristic signals of the branch box monitoring units to determine the physical topological relations of the branch box monitoring units, and integrating the physical topological relations of the meter box monitoring units and the physical topological relations of the branch box monitoring units to obtain a station area power grid terminal disturbance topological structure with variable-line-household multilevel physical topological relations.
2. The method for identifying the disturbance topology structure of the terminal of the power grid of the distribution area based on centralized scheduling as claimed in claim 1, wherein the intelligent sensing terminal of the distribution area comprises:
the first communication module transmits instructions to the branch box monitoring unit or the meter box monitoring unit, receives routing node information fed back by the branch box monitoring unit and the meter box monitoring unit, receives physical topological characteristic signals of the branch box monitoring unit and physical topological characteristic signals of the meter box monitoring unit, and receives recognition results of the branch box monitoring unit on the physical topological characteristic signals of the downstream branch box monitoring unit and recognition results of all meter box monitoring units on the physical topological characteristic signals.
3. The method for identifying the disturbance topology structure of the power grid terminal of the distribution area based on the centralized scheduling as claimed in claim 1, wherein the branch box monitoring unit comprises:
the first topological relation identification characteristic signal sending module sends a physical topological characteristic signal of the branch box monitoring unit to the platform area intelligent sensing terminal after receiving an instruction for identifying the physical topology of the branch box monitoring unit,
a topological relation identification module for identifying the physical topological characteristic signals of the downstream branch box monitoring units and the physical topological characteristic signals of all meter box monitoring units,
and the second communication module receives an instruction sent by the intelligent sensing terminal of the transformer area, sends self routing node information to the intelligent sensing terminal of the transformer area, sends a self physical topological characteristic signal, and uploads an identification result of the physical topological characteristic signals of the downstream branch box monitoring units and identification results of the physical topological characteristic signals of all meter box monitoring units to the intelligent sensing terminal of the transformer area.
4. The method for identifying the disturbance topological structure of the power grid end of the transformer area based on centralized scheduling according to claim 1, wherein the meter box monitoring unit comprises:
a second topological relation identification characteristic signal sending module which sends a physical topological characteristic signal of the meter box monitoring unit to the platform area intelligent sensing terminal after receiving an instruction for identifying the physical topology of the meter box monitoring unit,
and the third communication module is used for receiving an instruction sent by the intelligent sensing terminal of the transformer area, sending self routing node information to the intelligent sensing terminal of the transformer area and sending a self physical topological characteristic signal.
5. The method for identifying the terminal disturbance topology structure of the power grid of the distribution area based on the centralized scheduling as recited in claim 1, wherein the routing node information fed back by the branch box monitoring unit and the meter box monitoring unit includes local branch metering information of the branch box monitoring unit and local electric energy meter information of the meter box monitoring unit.
6. The method for identifying the terminal disturbance topology structure of the power grid of the distribution room based on centralized scheduling as claimed in claim 1, wherein the intelligent sensing terminal of the distribution room identifies the terminal disturbance physical topology of the power grid of the distribution room at regular time or identifies the terminal disturbance physical topology of the power grid of the distribution room when an identification command is input externally or automatically identifies the terminal disturbance physical topology of the power grid of the distribution room when the type of the collection equipment is changed.
7. The method for identifying the terminal disturbance topology structure of the power grid of the distribution area based on centralized scheduling according to claim 1, wherein the method for obtaining the terminal disturbance topology structure of the power grid of the distribution area based on the variable-line-user multilevel physical topology relationship by integrating the physical topology relationship of the meter box monitoring unit and the physical topology relationship of the branch box monitoring unit comprises the following steps: and removing the physical topological relation of the meter box monitoring unit and the branch box monitoring unit and the electricity meter box monitoring unit without a father node in the physical topological relation of the branch box monitoring unit, and mapping and integrating the physical topological relation of the meter box monitoring unit and the physical topological relation of the branch box monitoring unit according to the relation between the father node and the child node to obtain the distribution area power grid tail end disturbance topological structure with the variable-line-household multi-stage physical topological relation.
8. The method for identifying the terminal disturbance topology of the power grid of the distribution area based on centralized scheduling according to claim 2, 3 or 4, wherein the communication module comprises a low-voltage power broadband carrier module and a micro-power wireless module.
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