Distribution network non-power-cut operation safety monitoring system and method based on multi-source data

Abstract

The invention discloses a multi-source data-based distribution network uninterruptible operation safety monitoring system and method. The system comprises a plurality of maintenance sites and associated nodes of the maintenance sites; a medium-voltage generator car, a low-voltage generator car and a box transformer car; a node monitoring device, a distribution network maintenance server and a distribution network maintenance operation monitoring platform are associated; the association node is an upstream operation node and / or a downstream operation node of the maintenance site; the distribution network overhaul server is used for storing first to-be-overhauled positions corresponding to the overhaul event information in the same list grade range into an overhaul list, and the first to-be-overhauled positions in the same monitoring geographic area in the overhaul list are overhaul sites; and the distribution network maintenance operation monitoring platform is used for acquiring a maintenance strategy according to the distribution network position of the associated site and the electric energy flow direction. According to the invention, the efficiency of power-off-free maintenance operation of the distribution network is improved, the cost of power-off-free operation of the distribution network is reduced, and the safety of power-off-free operation of the distribution network is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of non-stop power supply operation of distribution network, and in particular to a non-stop power supply operation safety monitoring system and method for distribution network based on multi-source data. Background Art

[0002] Non-stop power supply operation of distribution network refers to non-stop maintenance work on lines and equipment, which can not only realize equipment maintenance, but also maintain uninterrupted power supply, thus improving power supply reliability and user satisfaction.

[0003] However, the traditional non-stop power supply operation mode of the distribution network has many safety hazards. First of all, it has high requirements for insulation equipment and shielding equipment. As time goes by, the aging of equipment will lead to the reduction of insulation performance and shielding performance. On-site operators often do not have the awareness and technology to identify the performance of equipment. If the equipment with aging performance is used, there will be great safety risks. In addition, the traditional non-stop power supply operation also has certain requirements for the environmental factors of the operation location. The existing technology lacks real-time monitoring of the operation location, and the staff cannot quickly determine whether the non-stop power supply operation can be carried out.

[0004] The use of power generators to supply power to areas affected by distribution network operations can greatly improve safety while avoiding power outages of power loads. However, there are often multiple distribution network maintenance operations in an area. If they are simply repaired in chronological order, the efficiency will be greatly reduced and manpower and material resources will be wasted. How to improve the efficiency of distribution network non-stop operations and reduce costs is a technical problem that needs to be solved. In addition, how to monitor the safety status of distribution network nodes in real time during distribution network operations and dynamically adjust the strategy of distribution network non-stop operations according to the safety status is also a technical problem that needs to be solved. Summary of the invention

[0005] Purpose of the invention: In view of the above problems, the present invention proposes a distribution network non-stop operation safety monitoring system and method based on multi-source data. Technical Solution

[0006] In the first aspect, the present invention provides a distribution network non-stop operation safety monitoring system based on multi-source data; the system includes a number of maintenance sites and associated nodes of the maintenance sites; a number of medium-voltage power generation vehicles, low-voltage power generation vehicles, and box-type transformer vehicles; associated node monitoring devices, distribution network maintenance servers, and distribution network maintenance operation monitoring platforms; the associated nodes are upstream operation nodes and / or downstream operation nodes of the maintenance sites; the associated node monitoring devices are used to obtain environmental information of the associated nodes; The distribution network maintenance server is used to store the first position to be repaired corresponding to the maintenance event information in the same list level range into the maintenance list, and the first position to be repaired in the maintenance list in the same monitored geographical area is the maintenance site; The distribution network maintenance operation monitoring platform is used to assign a first pre-selected maintenance strategy to each maintenance site according to the distribution network location of the associated node; and determine the maintenance sites that can be maintained simultaneously, and obtain a second maintenance strategy for the maintenance sites that can be maintained simultaneously based on the distribution network location and power flow direction of the associated sites.

[0007] Preferably, the distribution network maintenance server includes a maintenance event receiving module, a maintenance list module, and a maintenance location determination module; The maintenance event receiving module is used to receive maintenance event information; the maintenance event information is time-triggered or event-triggered; The maintenance list module obtains the first position to be maintained based on the source address of the maintenance event information; obtains the list level of the maintenance event information based on the type and value of the maintenance event information; and stores the first positions to be maintained corresponding to the maintenance event information in the same list level range into the same maintenance list; The maintenance site determination module is used to determine the first location to be maintained in the maintenance list that is in the same monitored geographical area as the maintenance site.

[0008] Preferably, the distribution network maintenance operation monitoring platform includes a first strategy determination module and a second strategy determination module; The first strategy determination module is used to configure a first pre-selected maintenance strategy for the maintenance site according to whether the maintenance site is located in the distribution network trunk or the distribution network branch; The second strategy determination module is used to cluster two associated nodes whose distance is less than a distance threshold into the same node group; based on the relationship between the distribution network location and the power flow direction, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage power generation vehicles and low-voltage power generation vehicles is selected with the goal of minimizing energy consumption cost, to obtain the second maintenance strategy for the maintenance sites that are maintained simultaneously.

[0009] Preferably, the system further comprises a maintenance route configuration server, wherein the maintenance route configuration server comprises an initial planning module and a dynamic adjustment module; The initial planning module is used to analyze the maintenance priorities of all node groups in the monitoring area and plan the maintenance route with the goal of minimizing the total maintenance time; The dynamic adjustment module is used to calculate the safety parameters of other node groups outside the maintenance priority level that exceeds the threshold in real time during the implementation of the maintenance route; if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached within a predetermined time after the current maintenance task is completed; separate and independently analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed, and dynamically adjust the maintenance route.

[0010] In a second aspect, the present invention further provides a method for monitoring the safety of distribution network non-stop operations based on multi-source data, the method comprising: S1. Obtain the maintenance location in each monitored geographical area in the maintenance list in the distribution network maintenance server; the first location to be repaired corresponding to the maintenance event information in the same list level range in the maintenance list; the first location to be repaired in the same monitored geographical area in the maintenance list is the maintenance location; S2. Acquire the associated nodes of each maintenance site, wherein the associated nodes include the upstream operation node and the downstream operation node of the maintenance site; S3, assigning a first pre-selected maintenance strategy to each maintenance site based on the distribution network location of the associated node; S4, determining maintenance sites that can be simultaneously maintained, and obtaining a second maintenance strategy for the maintenance sites that can be simultaneously maintained based on the distribution network location and power flow direction of the associated sites; S5. Analyze the maintenance priorities of all node groups in the monitoring area, and plan the maintenance route with the shortest total maintenance time as the goal; S6. Calculate dynamic safety parameters in real time during the maintenance process, and adjust the maintenance strategy in real time according to the dynamic safety parameters.

[0011] Preferably, the S1 includes: S11, the distribution network maintenance server receives maintenance event information; the maintenance event information is time-triggered or event-triggered; S12, obtaining a first location to be repaired based on the source address of the repair event information; S13, based on the type and value of the maintenance event information, obtaining a list level of the maintenance event information; S14, storing the first positions to be repaired corresponding to the repair event information in the same list level range into the same repair list; S15. The first location to be repaired in the repair list that is in the same monitored geographical area is the repair site.

[0012] Preferably, S3 includes: S31. If the maintenance site is located in the distribution network backbone, the first pre-selected maintenance strategy is to supply power to the loads in the maintenance-affected area through at least one medium-voltage generator vehicle via an associated node downstream of the maintenance site; S31. If the maintenance site is located in a distribution network branch, the first pre-selected maintenance strategy includes: supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a low-voltage generator vehicle; or supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a medium-voltage generator vehicle and a box transformer vehicle.

[0013] Preferably, the S4 includes: S41, obtaining the distance between two associated nodes, determining whether the distance is less than a distance threshold, and clustering two associated nodes whose distance is less than the distance threshold into the same node group; S42, determining the distribution network locations of two associated nodes in the node group; S43, if the node group includes a trunk node and a branch node, determining the power flow relationship between two associated nodes in the node group; S44. Based on the relationship between the distribution network location and the direction of electric energy flow, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage generator vehicles and low-voltage generator vehicles is selected with the goal of minimizing energy consumption cost, and a second maintenance strategy for the maintenance sites that are maintained simultaneously is obtained.

[0014] Preferably, the S5 includes: S51, analyzing the maintenance priority of each node group, wherein the maintenance priority is calculated according to the position of each associated node in the node group and the maintenance type of the corresponding maintenance location; S52, obtaining all node groups whose maintenance priority is lower than a threshold; obtaining the empirical maintenance time corresponding to each node group; S53, taking the node group exceeding the threshold as the maintenance starting point, and performing maintenance route planning after the maintenance task at the maintenance starting point is completed, wherein the control target of the maintenance route planning is to minimize the total maintenance time.

[0015] Preferably, the S6 includes: S61. During the maintenance route implementation, the safety parameters of other node groups other than the maintenance priority exceeding the threshold are calculated in real time; S62, if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached after the current maintenance task is completed within the predetermined time, if so, proceed to S64, if not, proceed to S63; S63, judging the environmental information of the abnormal node group to determine whether it meets the environmental requirements and regulatory requirements for direct live working; if so, assigning maintenance personnel to perform live working operations, otherwise proceeding to S65; S64, dynamically adjust the maintenance route: first, separate and analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed; make another node in the abnormal node group form a node group; plan the maintenance route based on the independently separated node group; S65. Perform power-off operations on the maintenance points corresponding to the abnormal node group to avoid safety hazards.

[0016] In a third aspect, the present invention further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor. Preferably, when the processor executes the computer program, the steps in the distribution network non-stop operation safety monitoring method based on multi-source data are implemented.

[0017] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon. Preferably, when the computer program is executed by a processor, the steps in the method for safely monitoring distribution network non-stop operations based on multi-source data are implemented.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The maintenance site in the present invention is in the maintenance list obtained by the distribution network maintenance server after analysis and processing, and is not directly reported every time a maintenance site appears; this avoids the immediate assignment of maintenance personnel every time a maintenance event occurs, but analyzes the maintenance type and location, and then analyzes the maintenance strategy in the subsequent steps, thereby improving the efficiency of non-stop maintenance of the distribution network. The present invention first allocates a first pre-selected maintenance strategy to each maintenance site based on the distribution network location where the associated node is located, and then selects and determines the second maintenance strategy based on the distribution network location where the associated node of the maintenance site is located and the upstream and downstream relationship between the two associated nodes in the node group, and calculates and selects the number of medium and low voltage generators with the lowest energy consumption cost, thereby reducing the cost of non-stop operation of the distribution network. The present invention performs preliminary maintenance route planning based on the maintenance priority of the node group and the total maintenance time, and calculates the safety parameters of the node group in real time during the implementation of the maintenance route, and adjusts the maintenance route or maintenance strategy according to the situation of the abnormal node group, thereby improving the safety of non-stop operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a distribution network non-stop operation safety monitoring system based on multi-source data provided by an embodiment of the present invention; Figure 2 A flow chart of a method for monitoring the safety of distribution network non-stop operation based on multi-source data provided by an embodiment of the present invention; Figure 3 A flow chart of a maintenance strategy determination method provided by an embodiment of the present invention; Figure 4 A flow chart of a dynamic and secure real-time adjustment method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Obviously, many modifications and changes made by those skilled in the art based on the purpose of the present invention belong to the protection scope of the present invention.

[0021] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when an element or component is said to be "connected" to another element or component, it may be directly connected to the other element or component, or there may be an intermediate element or component. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0023] The embodiment of the present invention provides a distribution network non-stop operation safety monitoring system based on multi-source data. For details, please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a distribution network non-stop operation safety monitoring system based on multi-source data provided by an embodiment of the present invention, the system includes: a number of maintenance sites and associated nodes of the maintenance sites; a number of medium-voltage power generation vehicles, low-voltage power generation vehicles, and box-type transformer vehicles; Associated node monitoring device, distribution network maintenance server, distribution network maintenance operation monitoring platform, maintenance route configuration server; The associated node is an upstream operation node and / or a downstream operation node of the maintenance site; The associated node monitoring device is used to obtain the environmental information of the associated node; The distribution network maintenance server, in the maintenance list, is a first location to be repaired corresponding to the maintenance event information in the same list level range, and the first location to be repaired in the maintenance list in the same monitored geographical area is the maintenance site; The distribution network maintenance operation monitoring platform is used to assign a first pre-selected maintenance strategy to each maintenance site according to the distribution network location of the associated node; and determine the maintenance sites that can be maintained simultaneously, and obtain a second maintenance strategy for the maintenance sites that can be maintained simultaneously based on the distribution network location and power flow direction of the associated sites.

[0024] Preferably, the distribution network maintenance server includes a maintenance event receiving module, a maintenance list module, and a maintenance location determination module; The maintenance event receiving module is used to receive maintenance event information; the maintenance event information is time-triggered or event-triggered; The maintenance list module obtains the first position to be maintained based on the source address of the maintenance event information; obtains the list level of the maintenance event information based on the type and value of the maintenance event information; and stores the first positions to be maintained corresponding to the maintenance event information in the same list level range into the same maintenance list; The maintenance site determination module is used to determine the first location to be maintained in the maintenance list that is in the same monitored geographical area as the maintenance site.

[0025] Preferably, the distribution network maintenance operation monitoring platform includes a first strategy determination module and a second strategy determination module; The first strategy determination module is used to configure a first pre-selected maintenance strategy for the maintenance site according to whether the maintenance site is located in the distribution network trunk or the distribution network branch; The second strategy determination module is used to cluster two associated nodes whose distance is less than a distance threshold into the same node group; based on the relationship between the distribution network location and the power flow direction, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage power generation vehicles and low-voltage power generation vehicles is selected with the goal of minimizing energy consumption cost, to obtain the second maintenance strategy for the maintenance sites that are maintained simultaneously.

[0026] Preferably, the system further comprises a maintenance route configuration server, wherein the maintenance route configuration server comprises an initial planning module and a dynamic adjustment module; The initial planning module is used to analyze the maintenance priorities of all node groups in the monitoring area and plan the maintenance route with the goal of minimizing the total maintenance time; The dynamic adjustment module is used to calculate the safety parameters of other node groups outside the maintenance priority level that exceeds the threshold in real time during the implementation of the maintenance route; if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached within a predetermined time after the current maintenance task is completed; separate and independently analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed, and dynamically adjust the maintenance route. Embodiment 2

[0027] The embodiment of the present invention also provides a distribution network non-stop operation safety monitoring method based on multi-source data. For details, please refer to Figure 2 , Figure 2A flow chart of a method for monitoring the safety of distribution network non-stop operation based on multi-source data provided by an embodiment of the present invention, the method comprising the steps of: S1. Obtain the maintenance location in each monitored geographical area in the maintenance list in the distribution network maintenance server; the first location to be repaired corresponding to the maintenance event information in the same list level range in the maintenance list; the first location to be repaired in the same monitored geographical area in the maintenance list is the maintenance location; S11, the distribution network maintenance server receives maintenance event information; the maintenance event information is time-triggered or event-triggered; S12, obtaining a first location to be repaired based on the source address of the repair event information; S13, based on the type and value of the maintenance event information, obtaining a list level of the maintenance event information; Preferably, a maintenance type-first level mapping table is stored in the distribution network maintenance server, and the corresponding first level can be queried for different maintenance types; based on the numerical value and the empirical threshold in the maintenance event information, the second level of the maintenance alarm event can be obtained; wherein the larger the absolute value of the difference between the numerical value and the empirical threshold, the larger the second level; based on the weighted average of the first level and the second level, the list level of the maintenance event information is obtained.

[0028] S14, storing the first positions to be repaired corresponding to the repair event information in the same list level range into the same repair list; It can be understood by those skilled in the art that, according to S13, the list level of each maintenance event information can be calculated, and the calculation result is a numerical value, which can be divided into several numerical ranges according to expert experience, and the first positions to be maintained corresponding to the maintenance event information in the same list level range are stored in the same maintenance list, that is, the maintenance event information corresponding to the first position to be maintained in each maintenance list.

[0029] S15. The first location to be repaired in the repair list that is in the same monitored geographical area is the repair site.

[0030] It will be understood by those skilled in the art that the maintenance location is in the maintenance list obtained by the distribution network maintenance server after analysis and processing, and is not directly reported every time a maintenance location appears; this avoids the immediate assignment of maintenance personnel every time a maintenance event occurs, but instead analyzes the maintenance type and location, and then analyzes the maintenance strategy in subsequent steps, thereby improving the distribution network maintenance efficiency.

[0031] S2. Acquire the associated nodes of each maintenance site, wherein the associated nodes include the upstream operation node and the downstream operation node of the maintenance site; S3, assigning a first pre-selected maintenance strategy to each maintenance site based on the distribution network location of the associated node; S31. If the maintenance site is located in the distribution network backbone, the first pre-selected maintenance strategy is to supply power to the loads in the maintenance-affected area through at least one medium-voltage generator vehicle via an associated node downstream of the maintenance site; S31. If the maintenance site is located in a distribution network branch, the first pre-selected maintenance strategy includes: supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a low-voltage generator vehicle; or supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a medium-voltage generator vehicle and a box transformer vehicle.

[0032] S4. Determine the maintenance locations that can be repaired simultaneously, and obtain the second maintenance strategy for the maintenance locations that can be repaired simultaneously based on the distribution network location and power flow direction of the associated locations; see Figure 3 , Figure 3 The figure is a flow chart of a maintenance strategy determination method provided by an embodiment of the present invention, including: S41, obtaining the distance between two associated nodes, determining whether the distance is less than a distance threshold, and clustering two associated nodes whose distance is less than the distance threshold into the same node group; Those skilled in the art can understand that in the present invention, only those nodes that are close to each other can be repaired at the same time, because this makes it easier for generators with different capacities to implement different power supply strategies between two nodes, so as to ensure the quality of power supply to users. In addition, there is a small possibility that more than two nodes are at the same distance from each other, and all are less than the distance threshold. In this case, they can be randomly grouped in pairs.

[0033] S42, determining the distribution network locations of two associated nodes in the node group; including two cases where they are a trunk node and a branch node, and both are branch nodes; S43, if the node group includes a trunk node and a branch node, determine the power flow relationship between two associated nodes in the node group; including two situations: the trunk node is upstream and the branch node is downstream; and the branch node is upstream and the trunk node is downstream; S44. Based on the relationship between the distribution network location and the direction of electric energy flow, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage generator vehicles and low-voltage generator vehicles is selected with the goal of minimizing energy consumption cost, and a second maintenance strategy for the maintenance sites that are maintained simultaneously is obtained.

[0034] Energy consumption cost C = a × medium voltage generator energy consumption cost C 中 +b×energy consumption cost of low-voltage generator C 低 +Energy consumption cost of box-type transformer C 箱; a is the number of medium-voltage generator cars, b is the number of low-voltage generator cars; since the energy consumption cost of box-type transformer cars is relatively low, this item is ignored; the energy consumption cost of generator cars = unit cost × expected maintenance time; The constraint conditions are determined based on the relationship between the node position type and the power flow direction of the node group. If the node group contains two branch nodes, the constraint conditions are: b 1 ×Q 低 ≥Q 低1max , and, b 2 ×Q 低 ≥Q 低2max ; or the constraint is: b×Q 低 ≥Q 低1max +Q 低2max , where b 1 、b 2 are the number of low-voltage generators at the two branch nodes, b 1 +b 2 =b,Q 低 Power supply for low voltage generator, Q 低1max , Q 低2max is the maximum power load of the maintenance impact area corresponding to the two branch nodes; If the node group contains a trunk node upstream and a branch node downstream, the constraint is: a×Q 中 ≥Q 中max ; or the constraint is: b×Q 低 ≥Q 低max , and, a×Q 中 -b×Q 低 ≥Q 中max -Q 低max ; Among them, Q 中 is the power generated by the medium voltage generator, Q 低max is the maximum power load of the maintenance impact area corresponding to the main node, Q 低max The maximum power load of the maintenance impact area corresponding to the branch node; If the node group contains a branch node upstream and a trunk node downstream, the constraint condition is: b×Q 低 ≥Q 低max , and, a×Q 中 ≥Q 中max ; or the constraint is: a×Q 中 ≥Q 中max +Q 低max ; According to the constraints, find the number of a and b when the energy consumption cost is the lowest.

[0035] S5. Analyze the maintenance priorities of all node groups in the monitoring area, and plan the maintenance route with the shortest total maintenance time as the goal; S51, analyzing the maintenance priority of each node group, wherein the maintenance priority is calculated according to the position of each associated node in the node group and the maintenance type of the corresponding maintenance location; Those skilled in the art will appreciate that the influence of the location of the associated node and the maintenance type of the maintenance site on the priority can be comprehensively calculated by means of weighted calculation; the maintenance priority of the node located on the trunk is higher than that of the node located on the branch, because the nodes located on the trunk affect a wider range of power loads; and the priorities of different maintenance types are also different, the more important and expensive the equipment, the higher its priority; the present invention calculates the maintenance priority of each associated node in the node group separately, and the maintenance priority of the node group can be obtained by taking the average or weighted average.

[0036] S52, obtaining all node groups whose maintenance priority is lower than a threshold; obtaining the empirical maintenance time corresponding to each node group; S53, taking the node group exceeding the threshold as the maintenance starting point, and performing maintenance route planning after the maintenance task at the maintenance starting point is completed, wherein the control target of the maintenance route planning is to minimize the total maintenance time; the total maintenance time includes the empirical maintenance time and the route travel time.

[0037] S6. Calculate dynamic safety parameters in real time during the maintenance process, and adjust the maintenance strategy in real time according to the dynamic safety parameters; see Figure 4 , Figure 4 A flow chart of a dynamic security real-time adjustment method provided by an embodiment of the present invention includes: S61. During the maintenance route implementation, the safety parameters of other node groups other than the maintenance priority exceeding the threshold are calculated in real time; The safety parameter is determined based on the difference between the current time and the trigger time of the maintenance event information corresponding to the node group, and the maintenance event information corresponding to the value change amount; in one possible implementation, the change rate of the value can be directly selected as the safety parameter; S62, if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached after the current maintenance task is completed within the predetermined time, if so, proceed to S64, if not, proceed to S63; S63, judging the environmental information of the abnormal node group to determine whether it meets the environmental requirements and regulatory requirements for direct live working; if so, assigning maintenance personnel to perform live working operations, otherwise proceeding to S65; Those skilled in the art can understand that the environmental information includes environmental factors such as temperature, humidity, and wind speed; and the specification requirements include whether the personnel, equipment, and maintenance types meet the requirements.

[0038] S64, dynamically adjust the maintenance route: first, separate and analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed; make another node in the abnormal node group form a node group; plan the maintenance route based on the independently separated node group, and the control target of the maintenance route planning is still to minimize the total maintenance time; S65. Perform power-off operations on the maintenance points corresponding to the abnormal node group to avoid safety hazards.

[0039] In one possible implementation, if there are multiple abnormal node groups, and the maintenance personnel only have time to go to one of the abnormal node groups after completing the current maintenance task, the route is planned to go to the abnormal node group with a greater impact on the power load, and the one with a smaller impact on the power load is selected for power outage operation. Embodiment 3

[0040] An embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor. Preferably, when the processor executes the computer program, the steps in the distribution network non-stop operation safety monitoring method based on multi-source data are implemented. Embodiment 4

[0041] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. Preferably, when the computer program is executed by a processor, the steps in the method for safely monitoring distribution network non-stop operations based on multi-source data are implemented.

[0042] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0043] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0044] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A distribution network non-stop operation safety monitoring system based on multi-source data, including a number of maintenance sites and associated nodes of the maintenance sites; a number of medium-voltage power generation vehicles, low-voltage power generation vehicles, and box-type transformer vehicles; associated node monitoring devices, distribution network maintenance servers, and distribution network maintenance operation monitoring platforms; characterized in that: The associated node is an upstream operation node and / or a downstream operation node of the maintenance site; the associated node monitoring device is used to obtain environmental information of the associated node; The distribution network maintenance server is used to store the first position to be repaired corresponding to the maintenance event information in the same list level range into the maintenance list, and the first position to be repaired in the maintenance list in the same monitored geographical area is the maintenance site; A distribution network maintenance operation monitoring platform, used to assign a first pre-selected maintenance strategy to each maintenance site according to the distribution network location where the associated node is located; And determine the maintenance sites that can be repaired simultaneously, and obtain the second maintenance strategy for the maintenance sites that can be repaired simultaneously based on the distribution network location and power flow direction of the associated sites.

2. The distribution network non-stop operation safety monitoring system based on multi-source data according to claim 1 is characterized in that: The distribution network maintenance server includes a maintenance event receiving module, a maintenance list module, and a maintenance location determination module; the maintenance event receiving module is used to receive maintenance event information; The maintenance list module obtains the first location to be maintained based on the source address of the maintenance event information; obtains the list level of the maintenance event information based on the type and value of the maintenance event information; The first positions to be repaired corresponding to the repair event information in the same list level range are stored in the same repair list; The maintenance site determination module is used to determine the first location to be maintained in the maintenance list that is in the same monitored geographical area as the maintenance site.

3. The distribution network non-stop operation safety monitoring system based on multi-source data according to claim 2 is characterized in that: The distribution network maintenance operation monitoring platform includes a first strategy determination module and a second strategy determination module; the first strategy determination module is used to configure a first pre-selected maintenance strategy for the maintenance site according to whether the maintenance site is located in the distribution network trunk or the distribution network branch; The second strategy determination module is used to cluster two associated nodes whose distance is less than a distance threshold into the same node group; based on the relationship between the distribution network location and the power flow direction, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage power generation vehicles and low-voltage power generation vehicles is selected with the goal of minimizing energy consumption cost, to obtain the second maintenance strategy for the maintenance sites that are maintained simultaneously.

4. The distribution network non-stop operation safety monitoring system based on multi-source data according to claim 3 is characterized in that: The system also includes a maintenance route configuration server, which includes an initial planning module and a dynamic adjustment module; the initial planning module is used to analyze the maintenance priorities of all node groups in the monitoring area and plan the maintenance route with the goal of minimizing the total maintenance time; The dynamic adjustment module is used to calculate the safety parameters of other node groups outside the maintenance priority level that exceeds the threshold in real time during the implementation of the maintenance route; if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached within a predetermined time after the current maintenance task is completed; separate and independently analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed, and dynamically adjust the maintenance route.

5. A distribution network non-stop operation safety monitoring method based on multi-source data applied to the distribution network non-stop operation safety monitoring system based on multi-source data as described in any one of claims 1 to 4, characterized in that: The method includes: S1. Obtain the maintenance location in each monitored geographical area in the maintenance list in the distribution network maintenance server; store the first location to be repaired corresponding to the maintenance event information in the same list level range into the maintenance list; the first location to be repaired in the maintenance list in the same monitored geographical area is the maintenance location; S2. Acquire the associated nodes of each maintenance site, wherein the associated nodes include the upstream operation node and the downstream operation node of the maintenance site; S3, assigning a first pre-selected maintenance strategy to each maintenance site based on the distribution network location of the associated node; S4, determining maintenance sites that can be simultaneously maintained, and obtaining a second maintenance strategy for the maintenance sites that can be simultaneously maintained based on the distribution network location and power flow direction of the associated sites; S5. Analyze the maintenance priorities of all node groups in the monitoring area, and plan the maintenance route with the shortest total maintenance time as the goal; S6. Calculate dynamic safety parameters in real time during the maintenance process, and adjust the maintenance strategy in real time according to the dynamic safety parameters.

6. The method for monitoring the safety of distribution network non-stop operation based on multi-source data according to claim 5 is characterized in that: The S1 includes: S11, the distribution network maintenance server receives maintenance event information; the maintenance event information is time-triggered or event-triggered; S12, obtaining a first location to be repaired based on the source address of the repair event information; S13, based on the type and value of the maintenance event information, obtaining a list level of the maintenance event information; S14, storing the first positions to be repaired corresponding to the repair event information in the same list level range into the same repair list; S15. The first location to be repaired in the repair list that is in the same monitored geographical area is the repair site.

7. The method for monitoring the safety of distribution network non-stop operation based on multi-source data according to claim 6 is characterized in that: The S3 includes: S31. If the maintenance site is located in the distribution network backbone, the first pre-selected maintenance strategy is to supply power to the loads in the maintenance-affected area through at least one medium-voltage generator vehicle via an associated node downstream of the maintenance site; S31. If the maintenance site is located in a distribution network branch, the first pre-selected maintenance strategy includes: supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a low-voltage generator vehicle; or supplying power to the loads in the maintenance affected area through the associated nodes downstream of the maintenance site by a medium-voltage generator vehicle and a box transformer vehicle.

8. The method for monitoring the safety of distribution network non-stop operation based on multi-source data according to claim 7 is characterized in that: The S4 includes: S41, obtaining the distance between two associated nodes, determining whether the distance is less than a distance threshold, and clustering two associated nodes whose distance is less than the distance threshold into the same node group; S42, determining the distribution network locations of two associated nodes in the node group; S43, if the node group includes a trunk node and a branch node, determining the power flow relationship between two associated nodes in the node group; S44. Based on the relationship between the distribution network location and the direction of electric energy flow, according to the maximum power load of the maintenance impact area corresponding to the associated node, the number of medium-voltage generator vehicles and low-voltage generator vehicles is selected with the goal of minimizing energy consumption cost, and a second maintenance strategy for the maintenance sites that are maintained simultaneously is obtained.

9. The method for monitoring power distribution network non-stop operation safety based on multi-source data according to claim 8 is characterized in that: The S5 includes: S51, analyzing the maintenance priority of each node group, wherein the maintenance priority is calculated according to the position of each associated node in the node group and the maintenance type of the corresponding maintenance location; S52, obtaining all node groups whose maintenance priority is lower than a threshold; obtaining the empirical maintenance time corresponding to each node group; S53, taking the node group exceeding the threshold as the maintenance starting point, and performing maintenance route planning after the maintenance task at the maintenance starting point is completed, wherein the control target of the maintenance route planning is to minimize the total maintenance time.

10. The method for monitoring the safety of distribution network non-stop operation based on multi-source data according to claim 9, characterized in that: The S6 includes: S61. During the maintenance route implementation, the safety parameters of other node groups other than the maintenance priority exceeding the threshold are calculated in real time; S62, if there is an abnormal node group that exceeds the safety parameter threshold, determine whether the abnormal node group can be reached after the current maintenance task is completed within the predetermined time, if so, proceed to S64, if not, proceed to S63; S63, judging the environmental information of the abnormal node group to determine whether it meets the environmental requirements and regulatory requirements for direct live working; if so, assigning maintenance personnel to perform live working operations, otherwise proceeding to S65; S64, dynamically adjust the maintenance route: first, separate and analyze the nodes included in the abnormal node group to find out the key nodes with abnormal safety parameters; use the key nodes as the primary destination after the current maintenance task is completed; make another node in the abnormal node group form a node group; plan the maintenance route based on the independently separated node group; S65. Perform power-off operations on the maintenance points corresponding to the abnormal node group to avoid safety hazards.

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