Power distribution network power failure information sharing method based on whole network marketing and distribution multi-source data

Abstract

The invention relates to a power distribution network power failure information sharing method based on whole network marketing and distribution multi-source data, and the method comprises the steps: obtaining a power distribution network topological graph and a power grid marketing GIS system, setting network nodes on the power distribution network topological graph, determining the compensation relation of the network nodes according to the feed line compensation relation of the power distribution network topological graph, and dividing topological sub-networks. Power failure information of the power distribution network is collected, a topological sub-network area of power failure is determined, the power failure information is sent to a power failure resource pool, and the power failure resource pool dispatches a work order to a power distribution network communication system based on a user power failure information label and a power distribution network power failure information label configured by the power failure information. And after the work order is completed, deleting the power failure information corresponding to the work order in the power failure resource pool. According to the method, the topological sub-networks are divided by determining the feed line compensation relation in the power distribution network system, more accurate simulation of the power distribution network is achieved, and power failure information is shared in a power failure resource pool as a whole and is also shared in a communication network in a scattered mode by dispatching the work orders.

Description

Technical Field

[0001] The present invention belongs to the field of power distribution, and in particular relates to a method for sharing power outage information in a distribution network based on multi-source data of the entire network. Background Art

[0002] At present, the power system has begun to analyze the marketing information and the operation information of the distribution network during operation, and then realize the service upgrade for power users based on these two types of information. In the power system, one of the main ways to improve the service quality is to shorten the power outage time. Since the distribution network covers a large area, it is necessary to share the power outage information of the distribution network if the purpose of shortening the power outage time is to be achieved. In addition, according to the provisions of the "Urban Power Grid Planning and Design Guidelines" (Q / GDW 156-2006), 35kV, 63kv, and 110kv are high-voltage distribution systems; 6kV~10kV (20kV) is a medium-voltage distribution system; 220V (380V) is a low-voltage distribution system. Among them, the medium-voltage distribution system has begun to invest in a network with a compensation relationship between feeders in the current distribution network to ensure the stability of distribution. The low-voltage distribution system is obviously the user-side distribution side, which often enters the household independently. Obviously, as a terminal, it does not have a feeder compensation relationship.

[0003] In the current distribution network power outage information sharing method, some technologies have been developed. For example, patent CN106208042B discloses a distribution network power outage information sharing method based on the integration of marketing, distribution and dispatching. The principle is to obtain location information based on the GIS system and divide the distribution network into multiple topological sub-networks. Then, based on the marketing information and the operation information of the distribution network, the information of power outage users in each topological sub-network is obtained and uploaded. The problem of this technical solution is that it is only based on the network nodes set on the distribution network, and then the topological sub-network is divided. It can no longer adapt to the situation of compensation for distribution network power outage problems, and fails to consider the relationship between high-voltage, medium-voltage and low-voltage feeders in the distribution network. For example, patent CN105894172B discloses a joint power outage judgment method based on the integration of marketing and distribution, which involves the construction plan of high, medium and low voltage models based on the distribution network topology diagram, and confirms the relationship with power users, but does not analyze the compensation relationship between feeders with the same voltage in the distribution network. It is obviously also a power outage judgment model for distribution networks without feeder compensation relationships.

[0004] It can be seen that the main problems in the existing distribution network power outage information sharing method based on multi-source data of marketing and distribution are: (1) Lack of compensation relationship. In the current distribution network, the relationship between feeders is more complicated, especially there is often a compensation relationship between feeders with the same voltage. For example, a low-voltage feeder fails, causing power outages for power users on the feeder. In order to ensure the quality of power supply, multiple other feeders will participate in compensation to achieve temporary power supply. In the currently disclosed technical solutions, this type of compensation relationship is not reflected. (2) The information label is unclear. The power outage caused by power failure and the power outage caused by insufficient funds are obviously different in the subsequent power restoration measures. In the current power outage information sharing method based on marketing and distribution data, all this power outage information is directly uploaded and synchronized in the communication network. Due to the failure to classify, the complexity of the subsequent power restoration work is increased and the timeliness is reduced. (3) Lack of information security. The synchronization of power outage information is not the ultimate goal. The ultimate goal is to deal with the power outage problem. Therefore, after uploading and sharing the power outage information, it is also necessary to protect this type of information to ensure information security. At the same time, it is also necessary to add and delete power outage information to avoid the power outage information not being deleted after processing, resulting in excessive data volume and exceeding the database storage capacity. Summary of the invention

[0005] In order to solve the problems of lack of compensation relationship, unclear information labeling and lack of information security in the prior art, this application discloses the following technical solutions:

[0006] A method for sharing power outage information of a distribution network based on multi-source data of the whole network operation and distribution, comprising the following steps:

[0007] Step 1: obtain a distribution network topology map and a power grid marketing GIS system, set all power switches on the distribution network topology map as network nodes, divide the network node levels according to the voltage of the distribution network feeder, and construct a preset sub-network according to the connection relationship of network nodes of different levels in the distribution network topology map;

[0008] Step 2: constructing a topology subnetwork based on the feeder compensation relationship and the preset subnetwork in the distribution network topology diagram;

[0009] Step 3: Collect distribution network power outage information, determine the power user information carried on the topology subnetwork affected by the distribution network power outage information, and set a distribution network power outage information tag for the power user information;

[0010] Step 4: Collect marketing information of power users in the distribution network, and determine whether the power user has a power outage based on the marketing information. If so, generate a user power outage information tag; if not, the power user corresponding to the marketing information is considered to be a non-power outage user;

[0011] Step five: upload the distribution network power outage information tag and / or the user power outage information tag to the power outage resource pool, generate a distribution network power outage problem handling work order based on the distribution network power outage information tag, and distribute it to the distribution network communication system; generate a fee collection work order based on the user power outage information tag, and distribute it to the distribution network communication system.

[0012] Optionally, the acquisition of the distribution network topology map and the power grid marketing GIS system, setting all power switches on the distribution network topology map as network nodes, and dividing the network node levels according to the voltage of the distribution network feeder, and constructing a preset sub-network according to the connection relationship of network nodes of different levels in the distribution network topology map, includes:

[0013] According to the structure of the distribution network, establish the distribution network topology diagram;

[0014] Based on the power grid marketing GIS system, all power switches are marked on the distribution network feeders displayed in the distribution network topology map, and all the power switches are set as network nodes;

[0015] Based on the voltage of the distribution network feeder where the network node is located, the network node is leveled, the network node on the high-voltage feeder is a Class I network node, the network node on the medium-voltage feeder is a Class II network node, the network node on the low-voltage feeder is a Class III network node, and the network node at the power user end is a Class IV network node, where Class I network nodes have the highest level and Class IV network nodes have the lowest level, and so on;

[0016] According to the connection relationship between network nodes of different levels in the distribution network topology diagram, corresponding preset subnetworks are generated, and the preset subnetworks include: a first-level preset subnetwork, a second-level preset subnetwork, a third-level preset subnetwork and a fourth-level preset subnetwork; a first-level preset subnetwork is composed of a first-class network node, a second-class network node, a third-class network node and a fourth-class network node; a second-level preset subnetwork is composed of a second-class network node, a third-class network node and a fourth-class network node; a third-level preset subnetwork is composed of a third-class network node and a fourth-class network node; and a fourth-level preset subnetwork is composed of only four-class network nodes.

[0017] Optionally, the constructing a topology subnetwork based on the feeder compensation relationship in the distribution network topology diagram and a preset subnetwork includes:

[0018] Based on the distribution network topology diagram, identifying the feeder compensation relationship between all the second-type network nodes in the first-level preset subnetwork and the feeder compensation relationship between all the third-type network nodes;

[0019] and / or based on the distribution network topology diagram, identifying the feeder compensation relationship between the three types of network nodes in the secondary preset subnetwork;

[0020] Based on the feeder compensation relationship of the same-level network nodes, on the preset subnetwork, all the second-class network nodes with feeder compensation relationship are merged, and all the third-class network nodes with feeder compensation relationship are merged to obtain a topological subnetwork; the feeder compensation relationship of the same-level network nodes includes the feeder compensation relationship between all the second-class network nodes, and the feeder compensation relationship between all the three-class network nodes.

[0021] Optionally, the collecting of power distribution network outage information, determining power user information carried on the topology subnetwork affected by the power distribution network outage information, and setting a power distribution network outage information tag for the power user information includes:

[0022] Based on the power outage information of the distribution network, determining the power outage location on the distribution network topology map;

[0023] Based on the power outage location, determining a starting node of a topology subnetwork;

[0024] Based on the starting node of the topology sub-network, determine the power user information carried on the topology sub-network affected by the power outage information of the distribution network;

[0025] The power distribution network outage information tag is set for the power user information, and the power distribution network outage information tag includes at least one of distribution network fault type information, distribution network fault location information and planned power outage information.

[0026] Optionally, the collecting of marketing information of power users in the power distribution network, judging whether the power user has a power outage based on the marketing information, and if so, generating a user power outage information tag, and if not, the power user corresponding to the marketing information is considered to be a non-power outage user, including:

[0027] Obtaining marketing information of power users in the distribution network, the marketing information including pre-deposited power fees, power payment time, and power consumption;

[0028] Based on the marketing information and the payment rules of the distribution network, confirm whether the power user has a power outage. If it is confirmed that the power user has a power outage, collect the power user's account number information and the power outage confirmation mark to generate power outage user information;

[0029] When confirming that a power user has a power outage, based on the four types of network node information corresponding to the power user, confirm the positions of the four types of network nodes on the distribution network topology map to obtain the power user's power outage node position, the power outage user information corresponding to the four types of network nodes, and the power user information, associate the power outage user information with the power user information to form a user power outage information label, and associate the power outage user information, the four types of network node information, the power user's power outage node position, and the user's power outage information label;

[0030] If it is confirmed that the power user is not experiencing a power outage, the power user corresponding to the marketing information is considered to be a non-power outage user, and no power outage information is generated.

[0031] Optionally, generating a distribution network power outage problem handling work order based on the distribution network power outage information tag and sending it to the distribution network communication system includes:

[0032] The power outage resource pool reads the information carried on the power outage information tag of the distribution network and generates a work order for handling the power outage problem of the distribution network;

[0033] The distribution network power outage problem processing work order is dispatched to the entire distribution network communication system based on the starting network node of the topological sub-network area corresponding to the power outage and the distance between distribution stations on the distribution network topology map.

[0034] Optionally, the method of dispatching the distribution network power outage problem processing work order to the entire distribution network communication system based on the starting network node of the topological sub-network area corresponding to the power outage and the distance between distribution stations on the distribution network topology map includes:

[0035] Based on the starting network node of the topological sub-network area corresponding to the power outage, the distance between the starting network node and the distribution station on the distribution network topology map is calculated and sorted;

[0036] The order grabbing weight is set according to the distance between the starting network node and the distribution station on the distribution network topology map. The smallest distance means the largest order grabbing weight. The order grabbing weights are set from largest to smallest in the order of the distances from smallest to largest.

[0037] Combining the distribution network power outage problem handling work order with the order grabbing weight, and dispatching the distribution network power outage problem handling work order to the distribution network communication system;

[0038] Technicians in the distribution station use mobile terminals to grab orders.

[0039] Optionally, the method further includes deleting the distribution network power outage information tag and / or the user power outage information tag, including:

[0040] The distribution network power outage problem handling work order in the distribution network communication system becomes invalid after being successfully grabbed and cannot be grabbed again;

[0041] After the distribution network power outage problem handling work order and / or the fee collection work order are completed, feedback information is generated, the feedback information is received by the power outage resource pool, and the distribution network power outage information tag corresponding to the distribution network power outage problem handling work order and / or the user power outage information tag corresponding to the fee collection work order is deleted;

[0042] After the distribution network power outage problem handling work order is successfully grabbed, the technician confirms that it cannot be completed, enters supplementary information into the distribution network power outage problem handling work order, and sends it to the distribution network communication system for a second time. Technicians from other distribution stations participate in grabbing the order, and the power outage resource pool receives the supplementary information and updates the power outage information.

[0043] Optionally, also include:

[0044] The power outage information in the power outage resource pool is synchronously updated to the database, and an update time step is set. When the power outage information in the power outage resource pool is lost or cannot be read, the database synchronizes the most recently updated power outage information to the power outage resource pool.

[0045] The beneficial effects of this application are:

[0046] 1. The feeder compensation relationship in the distribution network is considered. The topology diagram of the distribution network is established, and then the network nodes are set according to the high-voltage, medium-voltage and low-voltage sides and the user-side switches, which are divided into one to four types of network nodes, and a preset sub-network is established. Then, based on the operating relationship between the same-level network nodes, the compensation relationship of the same voltage feeders is determined, and the preset sub-network is divided, so as to obtain a topological sub-network with a feeder compensation relationship.

[0047] 2. Realize the differentiation of power outage information. Set different power outage information labels for the obtained power outage information, and classify them into distribution network power outage information and marketing information as a whole. Then associate these two types of information labels with different types of power outage information to confirm the cause of the power outage, so as to ensure that in the subsequent information synchronization and the handling of power outage problems, the cause of the power outage problem can be analyzed autonomously based on the set power outage information labels to better solve it.

[0048] 3. Realize the security protection of power outage information. The protection of power outage information has two aspects. The first is to correctly add and delete synchronized power outage information. When it is confirmed that a power outage has occurred in the distribution network, it is obviously necessary to add power outage information to the database and synchronize and share it in the entire distribution network. After the power outage problem is solved, the corresponding power outage information needs to be deleted to avoid the data in the database being stored without being deleted, causing the data volume to exceed the total database volume. The second is to set up a data backup system. When the shared power outage information is lost or other problems occur, the data backup system can be used to achieve correct power outage information filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solution of the exemplary embodiment of the present invention, the following briefly introduces the drawings required to describe the embodiment. Obviously, the drawings introduced are only some of the embodiment drawings to be described in the present invention, rather than all the drawings. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 A flow chart of a method for sharing power outage information in a distribution network based on multi-source data of the entire network provided by an embodiment of the present invention;

[0051] Figure 2 A simplified diagram of a distribution network topology diagram established in a distribution network power outage information sharing method based on multi-source data of the entire network provided by an embodiment of the present invention;

[0052] Figure 3 A topology sub-network creation flow chart in a method for sharing power outage information in a distribution network based on multi-source data of the entire network provided by an embodiment of the present invention;

[0053] Figure 4 A data sharing flow chart of a method for sharing power outage information in a distribution network based on multi-source data of the entire network provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0055] It should also be noted that, for ease of description, only the part relevant to the present invention but not all the content is shown in the accompanying drawings. It should be mentioned before discussing the exemplary embodiments in more detail that some exemplary embodiments are described as the processing or method described as a flow chart. Although the flow chart describes each operation (or step) as a sequential processing, many operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. When its operation is completed, the processing can be terminated, but it can also have additional steps not included in the accompanying drawings. The processing can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0056] Embodiment 1

[0057] In the construction of the power outage information sharing method of the distribution network based on the multi-source data of the whole network, the present invention adopts the method of constructing the topology map of the whole distribution network, then confirming all the switches contained in the topology map, and setting the switches on the feeder as network nodes of different levels in the topology map based on the voltage parameters of the feeder where the switch is located, and then defining the preset subnetwork based on the path of the user affected by the feeder, and then further dividing the preset subnetwork based on the preset subnetwork and the compensation relationship between the feeders to obtain the topology subnetwork. For the power outage information, the power outage information label is set, and all are sent to the power outage resource pool, and a power outage problem processing work order is generated and sent to the whole distribution network communication space, thereby forming a comprehensive sharing of the whole network from the overall power outage information collection and sharing to the work order information, which is used to solve the problems existing in the prior art.

[0058] Figure 1 It is a flow chart of a method for sharing power outage information in a distribution network based on multi-source data of the entire network provided by an embodiment of the present invention. Overall, it includes the construction of a distribution network topology map and a topological subnetwork, the collection and sharing of power outage information, the protection of power outage information in the distribution network, and decentralized sharing within the entire distribution network communication system.

[0059] like Figure 1 As shown, the power distribution network outage information sharing method based on multi-source data of the whole network disclosed in the present invention mainly includes the following five steps:

[0060] S110, obtain the distribution network topology map and the power grid marketing GIS system, set all power switches on the distribution network topology map as network nodes, and divide the network node levels according to the voltage of the distribution network feeder, and build a preset sub-network according to the connection relationship of network nodes of different levels in the distribution network topology map. The purpose of this step is to directly confirm the entire distribution network coverage area, as well as the distribution network topology map within the coverage area, and associate relevant power information. After setting the network nodes, further divide the distribution network topology map based on the hierarchical relationship of the network nodes and the internal logical relationship of the distribution network, so as to obtain multiple preset sub-networks.

[0061] Among them, modern distribution network marketing systems have pre-set GIS systems to display the geographical locations of various feeders, switches and power users in the distribution network. Therefore, the power grid marketing GIS system can be directly used to determine all the information in the distribution network. The purpose of this step is to achieve the association between the distribution network topology map and the information obtained in the power grid marketing GIS system.

[0062] Among them, all switches in the distribution network are set as network nodes of different levels. It should be noted that for feeders of different voltages in the distribution network, the set network node levels need to be differentiated. The higher the voltage, the higher the network node level.

[0063] In some embodiments, the network node level is directly distinguished based on the distribution network feeder voltage where the power switch in the distribution network is located. The purpose of this step is to lay a foundation for obtaining a preset sub-network based on the already set network nodes or self-generated network nodes and the connection relationship between the feeders where the network nodes are located.

[0064] Among them, in the generated preset subnetwork containing network nodes, a preset subnetwork is created according to the connection relationship between network nodes of different levels on the distribution network feeder, wherein, for example, the feeder where the first-class network node is located is directly connected to multiple feeders containing second-class network nodes, then all second-class network nodes are classified under the first-class network node, and so on, until all four-class network nodes are covered. In addition, for the divided preset subnetwork, preset subnetworks of first-class network nodes to fourth-class network nodes, second-class network nodes to fourth-class network nodes, third-class network nodes to fourth-class network nodes, and fourth-class network nodes themselves can also be formed. The purpose of this step is to simplify the final topological subnetwork construction process of the entire distribution network topology map after setting the preset subnetwork, and reduce the resource consumption of the topological subnetwork construction process.

[0065] S120, constructing a topology subnetwork based on the feeder compensation relationship and the preset subnetwork in the distribution network topology diagram. The purpose of this step is to fully consider the feeder connection relationship in the distribution network and the mutual influence relationship between the network nodes on the feeder, so as to ensure the accuracy of the final delineated topology subnetwork and have a more reasonable topology subnetwork delineation result.

[0066] like Figure 2 The above is a simplified diagram of the distribution network topology diagram established in the distribution network power outage information sharing method based on multi-source data of the whole network operation and distribution provided in an embodiment of the present invention, wherein the two Class II nodes included are nodes of the same level, the Class III nodes are nodes of the same level, and, in each topology subnetwork, when the Class II node is used as the initial node, the topology subnetwork formed includes Class III nodes and Class IV nodes on the same feeder, and when the Class III node is used as the initial node, the topology subnetwork formed only includes Class IV nodes.

[0067] Among them, based on the distribution network topology diagram and the actual setting scheme of the feeders in the distribution network, the compensation relationship between the feeders is found, especially the compensation relationship of the feeders during the power outage, so as to determine the area that the network node can actually affect when a power outage occurs in a certain network node area. The actual affected area is the topological sub-network. The purpose of this step is to ensure that the compensation relationship between the feeders can be actually applied to the determination process of the power outage information of the distribution network.

[0068] In the process of dividing the preset sub-network, it is necessary to determine the connection relationship between network nodes of the same level, and then create a topological sub-network based on the hierarchical relationship between different network nodes. The purpose of this step is to simplify the topological sub-network construction process of the distribution network and fully improve the construction accuracy based on the location of network nodes of the same level and the connection relationship between related feeders.

[0069] S130, collect power outage information of the distribution network, determine the power user information carried on the topological sub-network affected by the power outage information of the distribution network, and set a power outage information label for the power user information of the distribution network. The purpose of this step is to obtain power outage information caused by the distribution network itself, including distribution network failures, planned power outages, etc., and set a power outage information label for the distribution network, thereby laying the foundation for subsequent work order dispatching.

[0070] The power outage information of the distribution network refers to the information such as failures and planned power outages in the distribution network, and confirming the power users that may be affected by the current power outage information, so as to confirm the affected power users.

[0071] Among them, for a fault in the distribution network, the current distribution network fault location is located based on the GIS system, and the network node closest to the distribution network fault location is confirmed;

[0072] In some embodiments, the location of the fault will be the same as the distance between the upper network node and the lower network node, and the network node selected at this time is the upper network node to confirm the power users affected by the power outage. The purpose of this step is to integrate the area where the distribution network fault occurs with the network node in the distribution network topology map, so that the fault location can be better confirmed based on the fault location.

[0073] Among them, for the power outage information of the distribution network, based on the constructed topology subnetwork and the distribution network topology map, the affected power users are confirmed, the power user information is recorded, a data packet is generated, and a distribution network power outage information tag is generated at the same time, and the distribution network power outage information tag and the data packet are integrated. The purpose of this step is to use the distribution network power outage information tag for the currently generated data packet to realize the direct display of fault information.

[0074] S140, collect marketing information of power users in the distribution network, determine whether the power user has a power outage based on the marketing information, and if so, generate a user power outage information tag, if not, the power user corresponding to the marketing information is considered to be a non-power outage user. The purpose of this step is to confirm whether the power user will have a power outage due to cost issues, abnormal power consumption, etc. based on the marketing information of the power user when there is no problem in the operation of the distribution network.

[0075] Among them, the marketing information of power users is collected, the information of four types of network nodes is determined, and based on the information of power users, the information of the power users such as fees and power consumption is confirmed. Then, these two types of information are analyzed simultaneously. If it is found that the power user needs to be shut down, the network node information and power user information are determined, and a user power outage information label is generated. The user power outage information label refers to a label that only carries the power outage information of the power outage user. The purpose of this step is to explain the power outage information of the power user and to confirm the user who needs to be shut down. When the network node information is confirmed, it is obviously four types of network nodes.

[0076] Among them, to determine whether the power user has a power outage, the power user's fees, electricity usage behavior, etc. are collected based on marketing information, and whether the power outage is confirmed based on the judgment result, and all four types of network nodes in the distribution network are judged according to specific time network nodes. For example, a judgment can be made once a day. When it is found that a certain power user needs a power outage, the information is considered to be a user who needs a power outage, and the user information is collected. The purpose of this step is to confirm whether the power user needs to be processed by checking the marketing information of the power user. If it is determined that a power outage is required, the information is collected to avoid the power user failing to collect the power outage information in time when the power outage is required.

[0077] S150, upload the distribution network power outage information tag and / or the user power outage information tag to the power outage resource pool, generate a distribution network power outage problem handling work order based on the distribution network power outage information tag, and distribute it to the distribution network communication system; generate a fee collection work order based on the user power outage information tag, and distribute it to the distribution network communication system. The purpose of this step is to upload all power outage information, including distribution network power outage information and user power outage information, to the power outage resource pool, to achieve overall sharing of power outage information, and then dispatch work orders to the entire distribution network communication system based on the power outage cause tag and the GIS system, to achieve decentralized sharing of power outage information in the entire distribution network.

[0078] Among them, the power outage information and power outage information tags that have been obtained are uploaded to the power outage resource pool at the same time, and all data are stored and identified in the power outage resource pool, especially the power outage information tag information, which needs to be identified to identify the power outage cause and power outage area. The purpose of this step is to achieve the overall upload and collection of all power outage information to achieve centralized sharing of power outage information.

[0079] Among them, after the power outage information is shared in the power outage resource pool, it is also necessary to synchronize and share it in the entire distribution network system. After the power outage resource pool realizes the recognition of the power outage information and the power outage information tag, a corresponding work order is generated, and the work order is shared and synchronized in the entire distribution network communication system. The purpose of this step is to realize the decentralized sharing of power outage information in the entire distribution network by dispatching the work order generated based on the power outage information and the power outage information tag to the entire distribution network communication system.

[0080] Embodiment 2

[0081] In the construction of the power outage information sharing method of the distribution network based on multi-source data of the whole network, the construction of the topological sub-network is obviously the key to the whole technical system. First, based on the preset sub-network that has been constructed, the compensation relationship between the network nodes is identified according to the compensation relationship between the feeders. After confirming the compensation relationship, the topological sub-network is confirmed. The purpose of this step is to fully realize all the compensation relationships in the distribution network through the secondary division of the topological sub-network, so that the topological sub-network is more in line with the current construction situation of the distribution network.

[0082] Figure 3 It is a flowchart of creating a topological subnetwork in a distribution network power outage information sharing method based on multi-source data of the entire network provided by an embodiment of the present invention, which is used to illustrate the construction method for a topological subnetwork in the present invention, including generating a preset subnetwork based on already set network nodes of different levels, and then generating a topological subnetwork based on the topological subnetwork and further combining network nodes of different levels.

[0083] S210: Establish a distribution network topology map according to the structure of the distribution network.

[0084] According to the overall structure of the current distribution network, a distribution network topology is established, which includes all information such as high, medium and low voltage feeders, distribution stations, and distribution network switches to obtain a topology map, wherein, according to the provisions of the (Q / GDW 156-2006) "Guidelines for Urban Power Grid Planning and Design", 35kV, 63kv, and 110kv are high voltage distribution systems; 6kV~10kV (20kV) is a medium voltage distribution system; 220V (380V) is a low voltage distribution system;

[0085] In some embodiments, a supplementary module for the distribution network is also reserved to ensure that when the distribution network is upgraded and optimized, the distribution network is further supplemented to ensure that the established distribution network topology is exactly the same as the actual distribution network structure. The purpose of this step is to ensure that the established distribution network topology structure is exactly the same as the distribution network structure, thereby avoiding the problem of deviation between the distribution network topology and the actual state of the distribution network.

[0086] S220, based on the power grid marketing GIS system, mark all power switches on the distribution network feeders displayed in the distribution network topology map, and set all the power switches as network nodes. The purpose of this step is to directly set the switches as network nodes based on various switches on the entire distribution network structure, and the topology sub-network can be better set based on the network nodes.

[0087] Among them, all power switches on the distribution network topology map have been displayed on the topology map, and then all power switches are set as network nodes. However, the network nodes at this time are actually network nodes of the same level;

[0088] In some embodiments, the network nodes can also be directly set by technicians. In this technical solution, the corresponding network nodes can be set in the corresponding distribution network topology map according to the technical solution and the construction principles and requirements. The purpose of this step is to facilitate the subsequent topology sub-network construction work by setting the network nodes.

[0089] S230, based on the voltage of the distribution network feeder where the network node is located, setting the level of the network node, the network node on the high-voltage feeder is a Class I network node, the network node on the medium-voltage feeder is a Class II network node, the network node on the low-voltage feeder is a Class III network node, and the network node at the power user end is a Class IV network node, where Class I network nodes have the highest level and Class IV network nodes have the lowest level, and so on.

[0090] Among them, based on the power grid marketing GIS system, the coverage area of ​​the entire distribution network and the information of power users in the area are confirmed. At the same time, based on the power grid marketing GIS system, the location and information of power users can also be determined. The purpose of this step is to more accurately confirm the information of power users in the entire distribution network system.

[0091] Among them, based on the voltage of the feeder where the network node is located, the level of the network node is set. The method adopted is that the network node on the high-voltage feeder is set as a type of network node, the network node on the medium-voltage feeder is a type of network node, the network node on the low-voltage feeder is a type of network node, and the network node at the power user end is a type of node. The purpose of this step is to better confirm the topological sub-network setting method of the entire distribution network topology diagram by dividing the network nodes into levels. In addition, in the operation of the distribution network, especially when there are operating problems caused by distribution network failures, the greater the feeder voltage, the greater the impact range of the power outage caused in the end. Therefore, by setting the level of the network node, the power outage impact range can be determined based on the feeder voltage level of the network nodes of different levels in the distribution network, and the topological sub-network can be constructed.

[0092] S240, according to the connection relationship of network nodes of different levels in the distribution network topology diagram, generate corresponding preset subnetworks, the preset subnetworks including: a first-level preset subnetwork, a second-level preset subnetwork, a third-level preset subnetwork and a fourth-level preset subnetwork; a first-level preset subnetwork is composed of a first-class network node, a second-class network node, a third-class network node and a fourth-class network node; a second-level preset subnetwork is composed of a second-class network node, a third-class network node and a fourth-class network node; a third-level preset subnetwork is composed of a third-class network node and a fourth-class network node; a fourth-level preset subnetwork is composed of only four-class network nodes.

[0093] Among them, based on the distribution network topology and the level of network nodes, a preset subnetwork is generated, wherein the network nodes included in the preset subnetwork are different. The preset subnetwork containing all four types of network nodes is obviously the most complete preset subnetwork. The distribution network topology actually has one type I network node and multiple types II to IV network nodes. Among them, there are likely to be network nodes with a compensation relationship between type II network nodes and type III network nodes. This type of preset subnetwork is obviously the highest level, and it is set as a first-level preset subnetwork.

[0094] Among them, in the second-level preset subnetwork, the first-level preset subnetwork is based on the first-level preset subnetwork, and the first-level network node is removed. Each second-level preset subnetwork contains only one second-level network node, and also contains multiple third-level network nodes and fourth-level network nodes. Among them, there are likely to be network nodes with a compensatory relationship between the three-level network nodes.

[0095] Among them, in the third-level preset subnetwork, the second-class network nodes are removed on the basis of the second-class preset subnetwork. Each third-level preset subnetwork contains only one third-class network node and multiple fourth-class network nodes. Since the fourth-class network nodes are user-side network nodes and are independent network nodes, compensation for them is not considered. The purpose of this step is to process the preset subnetwork construction process and the constructed preset subnetwork in different levels to ensure that in the subsequent processing, the topology subnetwork is further constructed based on the preset subnetwork.

[0096] S250, based on the distribution network topology map, identifying the feeder compensation relationship between all the second-category network nodes in the first-level preset subnetwork, and the feeder compensation relationship between all the third-category network nodes, and / or based on the distribution network topology map, identifying the feeder compensation relationship between the three-category network nodes in the second-level preset subnetwork.

[0097] Among them, for the first-level preset subnetwork and the second-level preset subnetwork, except for the four types of network nodes and the highest-level network nodes, the compensation relationship between all the same-level nodes is determined, because only these two types of preset subnetworks have more network nodes of the same level that can be merged, and based on the description in the previous paragraph, it can be known that the four types of network nodes cannot be merged. The purpose of this step is to ensure the correct construction of the topological subnetwork and simplify the topological subnetwork structure by merging the non-highest-level and four types of network nodes in the first-level and second-level preset subnetworks.

[0098] S260, based on the feeder compensation relationship of the network nodes at the same level, on the preset sub-network, all the second-class network nodes with feeder compensation relationship are merged, and all the third-class network nodes with feeder compensation relationship are merged to obtain a topological sub-network; the feeder compensation relationship of the network nodes at the same level includes the feeder compensation relationship between all the second-class network nodes, and the feeder compensation relationship between all the three-class network nodes.

[0099] The purpose of this step is to merge the nodes of the same level on the feeders with compensation relationships in the preset subnetwork that has been obtained. After obtaining the corresponding processing results, the preset subnetwork can be simplified. The subnetwork after the simplified processing is the topological subnetwork, and in the subnetwork, the feeders with compensation relationships can be directly displayed using one feeder, so that the feeder realizes the display of all compensation relationships.

[0100] Among them, the method used to merge the same-level network nodes with compensation relationships is to merge the network nodes with compensation relationships into a network node of the same level, and the feeder relationship is also merged. The feeder length is from this new network node to the original network node of the next level. Through this method, a new feeder relationship is obtained. The purpose of this step is to better confirm the current topology sub-network layout relationship by setting the new and old network nodes.

[0101] Embodiment 3

[0102] In the construction of the distribution network power outage information sharing method based on multi-source data of the whole network, the present invention also focuses on data protection. At the same time, the obtained power outage information must not only be displayed in the power outage resource pool, but also be able to be shared in the communication network of the entire distribution network. Therefore, two design elements need to be considered, namely: how to achieve data protection and decentralized sharing of power outage data.

[0103] Figure 4It is a data sharing flow chart of the distribution network power outage information sharing method based on multi-source data of the entire network operation and distribution provided by an embodiment of the present invention. From a holistic point of view, it includes the collection and storage of distribution network power outage information, and then distributes the power outage information to the entire distribution network communication system in the form of a work order, and deletes the relevant power outage information in the area where power supply has been restored to avoid the power outage information can only be stored, thereby exceeding the information storage limit of the power outage resource pool.

[0104] like Figure 4 As shown, the data sharing flow chart of the power distribution network outage information sharing method based on multi-source data of the whole network operation and distribution disclosed in the present invention mainly includes the following steps:

[0105] S310, the power outage resource pool reads the information carried on the power outage information tag of the distribution network and generates a work order for handling the power outage problem of the distribution network. The purpose of this step is to confirm the power outage location in the distribution network and the impact range of the power outage problem. In this process, the specific power outage information can be confirmed based on the already set nodes and combined with the topological sub-network, and then the work order can be dispatched more accurately, and the work order carries the corresponding power outage information type.

[0106] Among them, based on the power grid marketing GIS system, the locations of all nodes in the distribution network can be confirmed. At the same time, after the distribution network fault information occurs, the information can be displayed on the topological subnetwork in the constructed distribution network topology map, and the fault location can be finally determined. The purpose of this step is to better associate the power outage location with the network node information by determining the power outage information, so as to determine the impact range of the power outage problem.

[0107] Among them, determine the label information of the power outage resource pool to confirm the source of the current power outage information, including the distribution network power outage information label and the user power outage information label. Obviously, the distribution network power outage information label indicates that there is power outage information caused by the distribution network itself, including distribution network failures, distribution network planned power outages, etc. Under this label information, confirm the location of the power outage information and the distance from the nodes on the distribution network topology map, and use the high-level network nodes as the standard. The purpose of this step is to integrate the distribution network power outage information and the node information on the distribution network topology map to better determine the area that the distribution network power outage information can affect.

[0108] Among them, for the user's power outage information tag, based on the confirmation of the power grid marketing information, the four types of network nodes corresponding to the user's power outage information are directly determined. The purpose of this step is that after confirming the four types of network nodes, the information can be directly collected and uploaded to the power outage resource pool, and then a work order is generated and dispatched to the entire distribution network communication system, so that the power outage information of a single user can be shared within the network.

[0109] S320, based on the starting network node of the topological sub-network area corresponding to the power outage, calculate the distance between the starting network node and the distribution station on the distribution network topology map, and sort them. The purpose of this step is to determine the distribution station closest to the network node after the location of the network node that will cause the power outage has been determined, and sort the calculated distance positions, so as to better determine the priority of dispatching the work order.

[0110] Among them, after determining the information on the power outage information label, it is necessary to confirm whether the information label is the power outage information of the distribution network, and confirm the node location. Then, with the network node as the vertex, the distance between the network node and the distribution station is confirmed on the distribution network point topology map. At the same time, the network node and multiple distribution stations on the distribution network topology map are connected, and the distance between the two is calculated and sorted according to the distance. The purpose of this step is to determine the distance between the network node and the distribution station to confirm the result with the smallest distance, thereby laying the foundation for the subsequent work order distribution weight.

[0111] Among them, when the power outage information tag shows that the user has a power outage, it is confirmed that the current power user has a power outage problem and it is a single power outage problem. Then, based on the power outage tag information, the distribution station is selected according to the method above. The purpose of this step is to confirm the distribution station closest to the four types of nodes, laying the foundation for the subsequent work order dispatch weight setting.

[0112] S330, according to the distance between the starting network node and the distribution station on the distribution network topology map, the order grabbing weight is set, the smallest distance means the largest order grabbing weight, and the order grabbing weights are set from large to small according to the order of the distance from small to large. The purpose of this step is to set the highest order grabbing weight to the distribution network closest to the node by setting the order grabbing weight, so that the nearest distribution station can more easily grab the order successfully, laying the foundation for solving the power outage problem.

[0113] Among them, the order grabbing weight is set according to the distance between the obtained network node and the distribution station on the distribution network topology map. The smallest distance has the largest order grabbing weight, and the order grabbing weight is set from large to small according to the distance from small to large. The purpose of this step is to ensure that the distribution station closest to the network node has a higher order grabbing success rate.

[0114] S340, combining the distribution network power outage problem handling work order with the order grabbing weight, and dispatching the distribution network power outage problem handling work order to the distribution network communication system. The purpose of this step is to share the power outage information in the communication network in the form of work orders to the entire distribution network communication system.

[0115] The order grabbing weight set for each work order is directly combined with the distributed work order, and then distributed to the entire distribution network communication system. In essence, technicians in all distribution stations can participate in grabbing orders, but the success rate of grabbing orders varies. When technicians use mobile terminals to grab orders, the power outage information obtained at this time is decentralized and shared throughout the communication network. The purpose of this step is to achieve decentralized sharing of the power outage information that has been obtained in the distribution network throughout the distribution network.

[0116] S350, technicians in the distribution station use mobile terminals to grab orders. The purpose of this step is for technicians in the distribution station to determine the difficulty of grabbing orders for different technicians based on the weight of the work order. The greater the weight, the higher the success rate of grabbing orders, so that the orders can be dispatched correctly. In addition, it also includes the need to delete the power outage information of the distribution network that has been uploaded to the power outage resource pool after the problem is eliminated, so as to avoid the problem that the power outage information is not deleted in time and is stored in the power outage resource pool for a long time, resulting in the power outage information exceeding the capacity of the power outage resource pool.

[0117] Among them, after the work order is dispatched to the entire distribution network communication system, a technician in the distribution station will grab the order. After the work order is successfully grabbed, it becomes invalid and cannot be grabbed again. The purpose of this step is to prevent the same work order from being grabbed by technicians in multiple distribution stations, resulting in the same work order being dispatched to multiple distribution stations.

[0118] Among them, after the work order task is completed, the technician determines that the work order is completed by operating the mobile device, and then the feedback information is received by the power outage resource pool. Since the work order information is generated based on the power outage information, when the power outage resource pool receives the completed work order information, it directly deletes the power outage information corresponding to the work order. The purpose of this step is to avoid the power outage information shared in the power outage resource pool from being unable to be deleted, resulting in the total amount of power outage information being greater than the capacity that the power outage resource pool can bear.

[0119] Among them, after the work order is successfully grabbed, if the technician confirms that it cannot be completed independently, he will add supplementary instructions to the work order and send it to the entire distribution network communication system for a second time. The technicians of other distribution stations will participate in grabbing the order. At the same time, the power outage resource pool also receives the work order information, updates the power outage information, and receives the work order grabbing results of technicians from other distribution stations. When deleting the power outage information, all work orders involved in the work need to be confirmed to be completed before the power outage information can be deleted;

[0120] In some embodiments, the technician confirms that the task cannot be completed, and makes supplementary information to the work order. The work order is sent to the power outage resource pool, and the power outage resource pool updates the power outage information and re-issues the work order according to steps S310 to S340, supporting technicians from other distribution stations to participate in grabbing the order. When the power outage information is deleted, all work orders involved in the work need to be confirmed as completed before the power outage information can be deleted from the power outage resource pool. The purpose of this step is to eliminate the power outage problem in the distribution network based on the form of the work order. After the power outage problem is solved, the corresponding power outage information in the power outage resource pool is deleted based on the completion of the work order.

[0121] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for sharing power outage information in a distribution network based on multi-source data of the entire network, characterized in that: The steps include: Step 1: obtain a distribution network topology map and a power grid marketing GIS system, set all power switches on the distribution network topology map as network nodes, divide the network node levels according to the voltage of the distribution network feeder, and construct a preset sub-network according to the connection relationship of network nodes of different levels in the distribution network topology map; Step 2: constructing a topology subnetwork based on the feeder compensation relationship and the preset subnetwork in the distribution network topology diagram; Step 3: Collect distribution network power outage information, determine the power user information carried on the topology subnetwork affected by the distribution network power outage information, and set a distribution network power outage information tag for the power user information; Step 4: Collect marketing information of power users in the distribution network, and determine whether the power user has a power outage based on the marketing information. If so, generate a user power outage information tag; if not, the power user corresponding to the marketing information is considered to be a non-power outage user; Step five: upload the distribution network power outage information tag and / or the user power outage information tag to the power outage resource pool, generate a distribution network power outage problem handling work order based on the distribution network power outage information tag, and distribute it to the distribution network communication system; generate a fee collection work order based on the user power outage information tag, and distribute it to the distribution network communication system.

2. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: The method of acquiring the distribution network topology map and the power grid marketing GIS system, setting all power switches on the distribution network topology map as network nodes, dividing the network node levels according to the voltage of the distribution network feeder, and constructing a preset sub-network according to the connection relationship of network nodes of different levels in the distribution network topology map, includes: According to the structure of the distribution network, establish the distribution network topology diagram; Based on the power grid marketing GIS system, all power switches are marked on the distribution network feeders displayed in the distribution network topology map, and all the power switches are set as network nodes; Based on the voltage of the distribution network feeder where the network node is located, the network node is leveled, the network node on the high-voltage feeder is a Class I network node, the network node on the medium-voltage feeder is a Class II network node, the network node on the low-voltage feeder is a Class III network node, and the network node at the power user end is a Class IV network node, where Class I network nodes have the highest level and Class IV network nodes have the lowest level, and so on; According to the connection relationship between network nodes of different levels in the distribution network topology diagram, corresponding preset subnetworks are generated, and the preset subnetworks include: a first-level preset subnetwork, a second-level preset subnetwork, a third-level preset subnetwork and a fourth-level preset subnetwork; a first-level preset subnetwork is composed of a first-class network node, a second-class network node, a third-class network node and a fourth-class network node; a second-level preset subnetwork is composed of a second-class network node, a third-class network node and a fourth-class network node; a third-level preset subnetwork is composed of a third-class network node and a fourth-class network node; and a fourth-level preset subnetwork is composed of only four-class network nodes.

3. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: The constructing a topology subnetwork based on the feeder compensation relationship in the distribution network topology diagram and a preset subnetwork includes: Based on the distribution network topology diagram, identifying the feeder compensation relationship between all the second-type network nodes in the first-level preset subnetwork and the feeder compensation relationship between all the third-type network nodes; and / or based on the distribution network topology diagram, identifying the feeder compensation relationship between the three types of network nodes in the secondary preset subnetwork; Based on the feeder compensation relationship of the same-level network nodes, on the preset subnetwork, all the second-class network nodes with feeder compensation relationship are merged, and all the third-class network nodes with feeder compensation relationship are merged to obtain a topological subnetwork; the feeder compensation relationship of the same-level network nodes includes the feeder compensation relationship between all the second-class network nodes, and the feeder compensation relationship between all the three-class network nodes.

4. The method for sharing power outage information of distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: The collecting of power outage information of the distribution network, determining the power user information carried on the topology subnetwork affected by the power outage information of the distribution network, and setting a power outage information tag of the distribution network for the power user information includes: Based on the power outage information of the distribution network, determining the power outage location on the distribution network topology map; Based on the power outage location, determining a starting node of a topology subnetwork; Based on the starting node of the topology sub-network, determine the power user information carried on the topology sub-network affected by the power outage information of the distribution network; The power distribution network outage information tag is set for the power user information, and the power distribution network outage information tag includes at least one of distribution network fault type information, distribution network fault location information and planned power outage information.

5. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: The collecting of marketing information of power users in the power distribution network, judging whether the power users have a power outage based on the marketing information, and if so, generating a user power outage information tag, and if not, the power users corresponding to the marketing information are considered to be non-power outage users, including: Obtaining marketing information of power users in the distribution network, the marketing information including pre-deposited power fees, power payment time, and power consumption; Based on the marketing information and the payment rules of the distribution network, confirm whether the power user has a power outage. If it is confirmed that the power user has a power outage, collect the power user's account number information and the power outage confirmation mark to generate power outage user information; When confirming that a power user has a power outage, based on the four types of network node information corresponding to the power user, confirm the positions of the four types of network nodes on the distribution network topology map to obtain the power user's power outage node position, the power outage user information corresponding to the four types of network nodes, and the power user information, associate the power outage user information with the power user information to form a user power outage information label, and associate the power outage user information, the four types of network node information, the power user's power outage node position, and the user's power outage information label; If it is confirmed that the power user is not experiencing a power outage, the power user corresponding to the marketing information is considered to be a non-power outage user, and no power outage information is generated.

6. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: The generating a distribution network power outage problem processing work order based on the distribution network power outage information tag and sending it to the distribution network communication system includes: The power outage resource pool reads the information carried on the power outage information tag of the distribution network and generates a power outage problem handling work order for the distribution network; The distribution network power outage problem processing work order is dispatched to the entire distribution network communication system based on the starting network node of the topological sub-network area corresponding to the power outage and the distance between distribution stations on the distribution network topology map.

7. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 6 is characterized in that: The method of dispatching the distribution network power outage problem processing work order to the entire distribution network communication system based on the starting network node of the topological sub-network area corresponding to the power outage and the distance between distribution stations on the distribution network topology map comprises: Based on the starting network node of the topological sub-network area corresponding to the power outage, the distance between the starting network node and the distribution station on the distribution network topology map is calculated and sorted; The order grabbing weight is set according to the distance between the starting network node and the distribution station on the distribution network topology map. The smallest distance means the largest order grabbing weight. The order grabbing weights are set from largest to smallest in the order of the distances from smallest to largest. Combining the distribution network power outage problem handling work order with the order grabbing weight, and dispatching the distribution network power outage problem handling work order to the distribution network communication system; Technicians in the distribution station use mobile terminals to grab orders.

8. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 6 is characterized in that: The method further includes deleting the power outage information tag of the distribution network and / or the power outage information tag of the user, including: The distribution network power outage problem handling work order in the distribution network communication system becomes invalid after being successfully grabbed and cannot be grabbed again; After the distribution network power outage problem handling work order and / or the fee collection work order are completed, feedback information is generated, the feedback information is received by the power outage resource pool, and the distribution network power outage information tag corresponding to the distribution network power outage problem handling work order and / or the user power outage information tag corresponding to the fee collection work order is deleted; After the distribution network power outage problem handling work order is successfully grabbed, the technician confirms that it cannot be completed, enters supplementary information into the distribution network power outage problem handling work order, and sends it to the distribution network communication system for a second time. Technicians from other distribution stations participate in grabbing the order, and the power outage resource pool receives the supplementary information and updates the power outage information.

9. The method for sharing power outage information in the distribution network based on multi-source data of the whole network operation and distribution according to claim 1 is characterized in that: Also includes: The power outage information in the power outage resource pool is synchronously updated to the database, and an update time step is set. When the power outage information in the power outage resource pool is lost or cannot be read, the database synchronizes the most recently updated power outage information to the power outage resource pool.

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