Method and system for automatically drawing power grid guarantee power supply graph

Abstract

The invention provides a method for automatically drawing a power grid guarantee power supply diagram. The method comprises the following steps: determining a power transmission line network diagram, a substation primary wiring diagram, a distribution network looped network diagram and a user low-voltage side wiring diagram; constructing a low-voltage topological model according to the user low-voltage side topological relation and the actual operation data, and fitting the low-voltage topological model with the medium-voltage side data to obtain a visual topological model containing the medium-voltage data and the low-voltage data; correcting and updating the visual topology model according to the actual operation data of the transformer substation and the distribution network looped network; and according to the updated visual topology model, automatically drawing a power grid guaranteed power supply diagram from the distribution network ring network to the low-voltage side of the user, and forming a complete power grid guaranteed power supply diagram which finally combines coexistence of the main network, the distribution network and the low-voltage side of the user in combination with a power transmission line network diagram. By implementing the method, not only can the real-time operation data of the low-voltage user side be integrated with the distribution network and the main network, but also the calculation process can be simplified, the cost can be reduced, and the analysis efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power systems, in particular to a method and system for automatically drawing a power supply guaranteeing map of a power grid. BACKGROUND

[0002] With the transformation of social economy and high-quality development, the significance of power supply guarantee is not only to meet the basic demand of people for electric energy, but also directly related to the normal operation of the entire social economy. A stable and reliable power supply system is the cornerstone of the smooth operation of various industries. Major activities also require reliable power supply.

[0003] At present, intelligent power supply guarantee technology has made certain progress at home and abroad and plays an important role in improving power supply reliability and safety. It mainly connects the fields of transmission, transformation, distribution and use through data link to draw a power supply guaranteeing map, which helps to monitor important substations, lines and places in real time.

[0004] However, the generation technology of the above-mentioned power supply guaranteeing map needs to be improved. It mainly depends on powerful computing power and has high use cost, resulting in low efficiency of power topology analysis of real-time running data. In addition, the above-mentioned power supply guaranteeing map only focuses on distribution network map or main network map, and does not realize the intelligent power supply guaranteeing map of low-voltage user side full-link fusion real-time running data.

[0005] Therefore, a new method for drawing a power supply guaranteeing map of a power grid is needed, which not only integrates low-voltage user side real-time running data with distribution network and main network, but also simplifies the calculation process, reduces the cost and improves the analysis efficiency. SUMMARY

[0006] The technical problem to be solved by the embodiments of the present application is to provide a method and system for automatically drawing a power supply guaranteeing map of a power grid, which not only integrates low-voltage user side real-time running data with distribution network and main network, but also simplifies the calculation process, reduces the cost and improves the analysis efficiency.

[0007] In order to solve the above technical problems, the embodiments of the present application provide a method for automatically drawing a power supply guaranteeing map of a power grid, which comprises the following steps:

[0008] From a specified power grid, determine the transmission line network diagram, the substation primary wiring diagram, the distribution network ring network diagram and the user low-voltage side wiring diagram;

[0009] According to the topological relationship of the user low-voltage side wiring diagram and in combination with the actual running data of the user low-voltage side in the specified power grid, a low-voltage topology model is constructed, and further fitted with the medium-voltage side data extracted from the substation primary wiring diagram and the distribution network ring network diagram to obtain a visual topology model containing medium-voltage data and low-voltage data.

[0010] According to the actual operation data of the transformer substation and the distribution network ring network, the visual topology model is corrected and updated;

[0011] According to the updated visual topology model, a power supply guarantee diagram of the distribution network ring network to the user low-voltage side is automatically drawn, and further, in the power supply guarantee diagram of the distribution network ring network to the user low-voltage side, a complete power supply guarantee diagram combining the main network, the distribution network and the user low-voltage side is automatically drawn in combination with the transmission line network diagram.

[0012] The specific steps of constructing a low-voltage topology model according to the topology relationship of the user low-voltage side wiring diagram and combining the actual operation data of the user low-voltage side in the specified power grid, and further fitting with the medium-voltage side data extracted from the transformer substation primary wiring diagram and the distribution network ring network diagram to obtain a visual topology model containing medium-voltage data and low-voltage data include:

[0013] Based on the user low-voltage side wiring diagram, the topological connection mode of the user low-voltage side power consumption equipment and the power consumption equipment is determined; wherein the power consumption equipment includes an electric energy meter, a power grid sensor and a medium-voltage distribution transformer;

[0014] The actual operation data of the user low-voltage side is obtained, including the actual data of the electric energy meter, the power consumption notification information, the power grid sensor information and the medium-voltage distribution transformer address information;

[0015] According to the topological connection mode between the power consumption equipment and the actual operation data of the user low-voltage side, a low-voltage topology model corresponding to the user low-voltage side wiring diagram is constructed;

[0016] From the transformer substation primary wiring diagram and the distribution network ring network diagram, corresponding topological data is extracted as medium-voltage side data, and the medium-voltage side data is fitted into the low-voltage topology model by using a preset visual model tool, to obtain a visual topology model containing medium-voltage data and low-voltage data.

[0017] The specific steps of correcting and updating the visual topology model according to the actual operation data of the transformer substation and the distribution network ring network include:

[0018] The node information in the visual topology model is obtained and compared with the node information in the actual operation data corresponding to the transformer substation and the distribution network ring network to check whether there is omission or error; wherein the node is used to represent the primary equipment in the transformer substation, the distribution network ring network equipment or the power consumption equipment;

[0019] Obtaining line information in the visual topology model, and comparing the line information with line information in actual operation data corresponding to the substation and the distribution network ring network to check whether the connection relationship of the line is correct;

[0020] Obtaining switch state in the visual topology model, and comparing the switch state with switch state in actual operation data corresponding to the substation and the distribution network ring network to check whether the closing and opening state of the switch is consistent;

[0021] According to the comparison result, one or more of the node information, line information and switch state in the visual topology model are corrected and updated.

[0022] According to the updated visual topology model, the specific steps of automatically drawing the power supply guarantee graph of the distribution network ring network to the user low-voltage side, and further automatically drawing the complete power supply guarantee graph of the main network, the distribution network and the user low-voltage side on the power supply guarantee graph of the distribution network ring network to the user low-voltage side, combined with the power transmission line network diagram, include:

[0023] Based on the updated visual topology model, the power supply guarantee graph of the distribution network ring network to the user low-voltage side is automatically output;

[0024] Based on the distribution network ring network, the power transmission line network diagram is automatically spliced on the power supply guarantee graph of the distribution network ring network to the user low-voltage side, to form the complete power supply guarantee graph of the main network, the distribution network and the user low-voltage side.

[0025] The method further includes:

[0026] The complete power supply guarantee graph of the main network, the distribution network and the user low-voltage side is subjected to graphic data processing and rendering to generate a panoramic view rendering after processing.

[0027] The embodiment of the application also provides a system for automatically drawing a power supply guarantee graph, which includes:

[0028] A power grid diagram acquisition unit is configured to determine a power transmission line network diagram, a substation primary wiring diagram, a distribution network ring network diagram and a user low-voltage side wiring diagram from a specified power grid;

[0029] A medium and low voltage model fusion unit is configured to construct a low-voltage topology model according to a topological relationship of the user low-voltage side wiring diagram and in combination with actual operation data of the user low-voltage side in the specified power grid, and further fit medium-voltage side data extracted from the substation primary wiring diagram and the distribution network ring network diagram to obtain a visual topology model containing medium-voltage data and low-voltage data;

[0030] A model correction and update unit is configured to correct and update the visual topology model according to actual operation data of the transformer substation and the distribution network ring network.

[0031] A whole drawing unit is configured to automatically draw a power supply guarantee map of the distribution network ring network to the user low-voltage side according to the updated visual topology model, and further automatically draw a complete power supply guarantee map of the complete power grid coexisting with the main network, the distribution network and the user low-voltage side on the power supply guarantee map of the distribution network ring network to the user low-voltage side in combination with the transmission line network map.

[0032] The medium and low voltage model fusion unit includes:

[0033] A low-voltage side topology determination module is configured to determine the power utilization equipment of the user low-voltage side and the topology connection mode between the power utilization equipment based on the user low-voltage side wiring diagram, wherein the power utilization equipment includes an electric energy meter, a power grid sensor and a medium-voltage distribution transformer.

[0034] A low-voltage side actual data acquisition module is configured to acquire actual operation data of the user low-voltage side, including electric energy meter power utilization actual data, power utilization notification information, power grid sensor information and medium-voltage distribution transformer address information.

[0035] A low-voltage side model construction module is configured to construct a low-voltage topology model corresponding to the user low-voltage side wiring diagram according to the topology connection mode between the power utilization equipment and in combination with the actual operation data of the user low-voltage side.

[0036] A medium and low voltage side fusion model module is configured to extract corresponding topology data as medium-voltage side data from the transformer substation primary wiring diagram and the distribution network ring network diagram, and fit the medium-voltage side data into the low-voltage topology model by using a preset visual model tool to obtain a visual topology model containing medium-voltage data and low-voltage data.

[0037] The model correction and update unit includes

[0038] A first comparison module is configured to acquire node information in the visual topology model, and compare the node information with node information in actual operation data corresponding to the transformer substation and the distribution network ring network to check whether there is omission or error, wherein the node is used to represent primary equipment in the transformer substation, distribution network ring network equipment or power utilization equipment.

[0039] A second comparison module is configured to acquire line information in the visual topology model, and compare the line information with line information in actual operation data corresponding to the transformer substation and the distribution network ring network to check whether the connection relationship of the line is correct.

[0040] a third comparison module configured to acquire the switch state in the visual topology model and compare the switch state with the actual operation data corresponding to the substation and the distribution network loop network, and check whether the closing and opening states of the switch are consistent;

[0041] a correction and update module configured to correct one or more of the node information, the line information and the switch state in the visual topology model according to the comparison result and update the visual topology model.

[0042] The whole drawing drawing unit comprises:

[0043] a first drawing module configured to automatically output the power supply guaranteeing drawing of the distribution network loop network to the low-voltage side of the user based on the updated visual topology model;

[0044] a second drawing module configured to automatically splice the power transmission line network map on the power supply guaranteeing drawing of the distribution network loop network to the low-voltage side of the user to form a complete power supply guaranteeing drawing of the main network, the distribution network and the low-voltage side of the user coexisting together.

[0045] The whole drawing drawing unit comprises:

[0046] The whole drawing rendering processing unit is configured to perform processing and rendering on the graphic data of the complete power supply guaranteeing drawing of the main network, the distribution network and the low-voltage side of the user coexisting together to generate a panoramic view rendering processed drawing.

[0047] The embodiment of the present application has the following beneficial effects:

[0048] The present application constructs a low-voltage topology model according to the actual operation data of the low-voltage side of the user, and constructs a visual topology model containing medium-voltage data and low-voltage data in combination with the medium-voltage side data in the substation primary wiring diagram and the distribution network loop network diagram. After the visual topology model is corrected and updated by the actual operation data of the medium-voltage side, the power supply guaranteeing drawing of the distribution network loop network to the low-voltage side of the user is automatically drawn, and then the complete power supply guaranteeing drawing of the main network, the distribution network and the low-voltage side of the user coexisting together is automatically drawn in combination with the power transmission line network map. Therefore, not only the real-time operation data of the low-voltage user side can be fused with the distribution network and the main network, but also the calculation process can be simplified, the cost can be reduced and the analysis efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings obtained according to these drawings without creative labor are still within the scope of the present application.

[0050] Figure 1 A flow chart of a method for automatically drawing a power supply guarantee one map of a power grid according to an embodiment of the present application is provided.

[0051] Figure 2 A structural schematic diagram of a system for automatically drawing a power supply guarantee one map of a power grid according to an embodiment of the present application is provided. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.

[0053] As shown in Figure 1 A method for automatically drawing a power supply guarantee one map of a power grid according to an embodiment of the present application is provided, which comprises the following steps:

[0054] Step S1, determining a power transmission line network diagram, a substation primary wiring diagram, a distribution network ring network diagram and a user low-voltage side wiring diagram from a specified power grid;

[0055] The specific process is that in a specified power grid (such as a power transmission and supply grid of a certain area), the topological data of the power transmission line network diagram, the substation primary wiring diagram, the distribution network ring network diagram and the user low-voltage side wiring diagram are obtained.

[0056] Among them, the power transmission line network diagram comes from a unified panoramic platform, including the line type, line parameters and line state of the power transmission line. At this time, the line type includes but is not limited to high-voltage power transmission line, extra-high-voltage power transmission line and ultra-high-voltage power transmission line; the line parameters include but are not limited to line length, conductor cross-sectional area, conductor model, resistance, reactance and capacitance; the line state includes but is not limited to running state (such as normal, maintenance, fault, etc.) and line load condition.

[0057] Among them, the substation primary wiring diagram comes from OCS (Operation Control System), including the running state of the primary equipment in the substation, and the electrical connection mode and control logic relationship between the primary equipment in the substation. At this time, the primary equipment in the substation includes but is not limited to transformer, circuit breaker, disconnector and bus.

[0058] Among them, the distribution network ring network diagram comes from a distribution system, including the running state of the distribution network ring network equipment, and the connection mode between the distribution network ring network equipment. At this time, the distribution network ring network equipment includes but is not limited to substation, switch station, ring network cabinet and distribution line;

[0059] The user low-voltage side wiring diagram is from the deployment system, and includes the running states of the distribution network low-voltage side equipment and the user low-voltage side power consumption equipment, the connection modes among the distribution network low-voltage side equipment, the connection modes between the low-voltage side equipment and the power consumption equipment, and the connection modes among the power consumption equipment. At this time, the distribution network low-voltage side equipment includes but is not limited to a low-voltage bus, a low-voltage circuit breaker, a distribution box, and a user access point box. The power consumption equipment includes but is not limited to an electric energy meter, a power grid sensor, and a medium-voltage distribution transformer.

[0060] In step S2, a low-voltage topology model is constructed according to the topological relationship of the user low-voltage side wiring diagram and in combination with the actual running data of the user low-voltage side in the specified power grid, and is further fitted with the medium-voltage side data extracted from the substation primary wiring diagram and the distribution network looped network diagram to obtain a visual topology model containing medium-voltage data and low-voltage data.

[0061] Specifically, first, the power consumption equipment of the user low-voltage side and the topological connection modes among the power consumption equipment are determined based on the user low-voltage side wiring diagram. The power consumption equipment includes an electric energy meter, a power grid sensor, and a medium-voltage distribution transformer.

[0062] Second, the actual running data of the user low-voltage side is obtained, including electric energy meter power consumption actual data, power consumption notification information, power grid sensor information, and medium-voltage distribution transformer address information.

[0063] Then, a low-voltage topology model corresponding to the user low-voltage side wiring diagram is constructed according to the topological connection modes among the power consumption equipment and in combination with the actual running data of the user low-voltage side.

[0064] Finally, corresponding topological data as medium-voltage side data is extracted from the substation primary wiring diagram and the distribution network looped network diagram, and the medium-voltage side data is fitted into the low-voltage topology model by using a preset visual model tool to obtain a visual topology model containing medium-voltage data and low-voltage data.

[0065] In step S3, the visual topology model is corrected and updated according to the actual running data of the substation and the distribution network looped network.

[0066] Specifically, first, the node information in the visual topology model is obtained and compared with the node information in the actual running data corresponding to the substation and the distribution network looped network to check whether there is omission or error. The node is used to represent the primary equipment in the substation, the distribution network looped network equipment, or the power consumption equipment.

[0067] The line information in the visual topology model is obtained and compared with the line information in the actual running data corresponding to the substation and the distribution network looped network to check whether the connection relationship of the line is correct; and

[0068] Obtain the switch state in the visual topology model, and compare it with the switch state in the actual operation data corresponding to the substation and the distribution network ring network, to check whether the closing and opening states of the switch are consistent;

[0069] Finally, according to the comparison result, one or more of the node information, line information and switch state in the visual topology model are corrected and updated.

[0070] Step S4, according to the updated visual topology model, the power supply guarantee graph of the distribution network ring network to the user low-voltage side is automatically drawn, and further, the final complete power supply guarantee graph combining the main network, the distribution network and the user low-voltage side is automatically drawn on the power supply guarantee graph of the distribution network ring network to the user low-voltage side, combined with the power transmission line network graph.

[0071] The specific process is that, first, based on the updated visual topology model, the power supply guarantee graph of the distribution network ring network to the user low-voltage side is automatically output.

[0072] Finally, based on the distribution network ring network, the power transmission line network graph is automatically spliced on the power supply guarantee graph of the distribution network ring network to the user low-voltage side, to form the final complete power supply guarantee graph combining the main network, the distribution network and the user low-voltage side.

[0073] As can be seen, the one graph generation technology in step S4 uses the automatic fitting of the medium-voltage side of the power grid, and data is connected and connected between the main network, the distribution network ring network and the low-voltage user side, to generate a complete power supply guarantee graph.

[0074] It should be noted that for the problems of loss and inaccuracy of inventory drawings, power measurement, batch copying and other technical means are used to reconstruct the low-voltage topology information. That is, for the low-voltage lines in the missing part of the power supply guarantee graph (such as old venues), the low-voltage line data of these areas is obtained using technical means based on the power information batch copying system, and the data is used to supplement and reconstruct the power supply guarantee graph to obtain a complete power supply guarantee graph.

[0075] In the embodiment of the present application, the method further comprises: processing and rendering the graph data of the final complete power supply guarantee graph combining the main network, the distribution network and the user low-voltage side, to generate a panorama view rendering after processing, so as to generate a clear and accurate expression.

[0076] As Figure 2 shown, a system for automatically drawing a power supply guarantee graph of the power grid according to an embodiment of the present application comprises:

[0077] The power grid graph acquisition unit 110 is configured to determine the power transmission line network graph, the substation primary connection graph, the distribution network ring network graph and the user low-voltage side connection graph from a specified power grid.

[0078] The middle-low voltage model fusion unit 120 is configured to construct a low-voltage topology model according to the topology relationship of the user low-voltage side wiring diagram and in combination with the actual operation data of the user low-voltage side in the specified power grid, and further fit the low-voltage topology model with the middle-voltage side data extracted from the substation primary wiring diagram and the distribution network looped network diagram to obtain a visual topology model containing middle-voltage data and low-voltage data.

[0079] The model correction and update unit 130 is configured to correct and update the visual topology model according to the actual operation data of the substation and the distribution network looped network.

[0080] The whole drawing unit 140 is configured to automatically draw a power supply guarantee diagram of the distribution network looped network to the user low-voltage side according to the updated visual topology model, and further automatically draw a complete power supply guarantee diagram of the distribution network looped network to the user low-voltage side in combination with the power transmission line network diagram.

[0081] The middle-low voltage model fusion unit 120 includes:

[0082] The low-voltage side topology determination module is configured to determine the power consumption equipment of the user low-voltage side and the topology connection mode between the power consumption equipment based on the user low-voltage side wiring diagram, wherein the power consumption equipment includes an electric energy meter, a power grid sensor and a middle-voltage distribution transformer.

[0083] The low-voltage side actual data acquisition module is configured to acquire the actual operation data of the user low-voltage side, including the actual power consumption data of the electric energy meter, the power consumption notification information, the power grid sensor information and the middle-voltage distribution transformer address information.

[0084] The low-voltage side model construction module is configured to construct a low-voltage topology model corresponding to the user low-voltage side wiring diagram according to the topology connection mode between the power consumption equipment and in combination with the actual operation data of the user low-voltage side.

[0085] The middle-low voltage side fusion model module is configured to extract corresponding topology data as middle-voltage side data from the substation primary wiring diagram and the distribution network looped network diagram, and fit the middle-voltage side data into the low-voltage topology model by using a preset visual model tool to obtain a visual topology model containing middle-voltage data and low-voltage data.

[0086] The model correction and update unit 130 includes

[0087] The first comparison module is configured to acquire node information in the visualized topology model, and compare the node information with node information in actual operation data corresponding to the substation and the distribution network ring network, to check whether there is omission or error; wherein, the node is used to represent primary equipment in the substation, distribution network ring network equipment or power utilization equipment;

[0088] The second comparison module is configured to acquire line information in the visualized topology model, and compare the line information with line information in actual operation data corresponding to the substation and the distribution network ring network, to check whether the connection relationship of the line is correct;

[0089] The third comparison module is configured to acquire switch state in the visualized topology model, and compare the switch state with switch state in actual operation data corresponding to the substation and the distribution network ring network, to check whether the closing and opening state of the switch is consistent;

[0090] The correction and update module is configured to correct one or more of the node information, the line information and the switch state in the visualized topology model according to the comparison result, and update the visualized topology model.

[0091] The whole drawing unit 140 includes:

[0092] The first drawing module is configured to automatically output the power supply guarantee drawing of the distribution network ring network to the low-voltage side of the user based on the updated visualized topology model;

[0093] The second drawing module is configured to automatically splice the power transmission line network drawing on the power supply guarantee drawing of the distribution network ring network to the low-voltage side of the user, to form a complete power supply guarantee drawing of the main network, the distribution network and the low-voltage side of the user.

[0094] The whole drawing unit 140 includes:

[0095] The one-picture rendering processing unit is configured to perform processing and rendering on the complete power supply guarantee drawing of the main network, the distribution network and the low-voltage side of the user, to generate a panorama view rendering processing one-picture.

[0096] The embodiment of the present application has the following beneficial effects:

[0097] The application constructs a low-voltage topology model according to actual operation data of the user low-voltage side, and constructs a visual topology model containing medium-voltage data and low-voltage data in combination with substation primary wiring diagram and medium-voltage side data in distribution network looped network diagram. After being corrected and updated by the actual operation data of the medium-voltage side, the power supply guarantee diagram of the distribution network looped network to the user low-voltage side is automatically drawn, and then in combination with the transmission line network diagram, the final complete power supply guarantee diagram of the main network, the distribution network and the user low-voltage side coexisting is automatically drawn. Thus, not only the real-time operation data of the low-voltage user side can be fused with the distribution network and the main network, but also the calculation process can be simplified, the cost can be reduced and the analysis efficiency can be improved.

[0098] It is worth noting that the various system modules included in the above system embodiments are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized. In addition, the specific names of the various functional modules are only for easy mutual differentiation, and are not used to limit the protection scope of the application.

[0099] Those skilled in the art can understand that all or part of the steps of the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc.

[0100] The above disclosure is only the preferred embodiment of the application, and of course cannot limit the scope of the application. Therefore, equivalent changes made according to the claims of the application are still within the scope of the application.

Claims

1. A method for automatically drawing a power supply guarantee one map of a power grid, characterized in that, The method comprises the following steps: From the specified power grid, determine the transmission line network diagram, the substation primary wiring diagram, the distribution network ring network diagram and the user low-voltage side wiring diagram; According to the topological relationship of the user low-voltage side wiring diagram, and in combination with the actual operation data of the user low-voltage side in the specified power grid, a low-voltage topological model is constructed, and further fitted with the medium-voltage side data extracted from the substation primary wiring diagram and the distribution network ring network diagram to obtain a visual topological model containing medium-voltage data and low-voltage data; According to the actual operation data of the substation and the distribution network ring network, the visual topological model is corrected and updated; According to the updated visual topological model, the power supply guarantee diagram of the distribution network ring network to the user low-voltage side is automatically drawn, and further in combination with the transmission line network diagram, the complete power supply guarantee diagram of the main network, the distribution network and the user low-voltage side is automatically drawn.

2. The method of claim 1, wherein, The specific steps of constructing a low-voltage topological model according to the topological relationship of the user low-voltage side wiring diagram, and in combination with the actual operation data of the user low-voltage side in the specified power grid, and further fitting with the medium-voltage side data extracted from the substation primary wiring diagram and the distribution network ring network diagram to obtain a visual topological model containing medium-voltage data and low-voltage data include: Based on the user low-voltage side wiring diagram, the topological connection mode of the user low-voltage side and the power utilization equipment is determined; wherein the power utilization equipment includes an electric energy meter, a power grid sensor and a medium-voltage distribution transformer; Obtain the actual operation data of the user low-voltage side, including the actual data of the electric energy meter, the power utilization notification information, the power grid sensor information and the medium-voltage distribution transformer address information; According to the topological connection mode of the power utilization equipment and in combination with the actual operation data of the user low-voltage side, a low-voltage topological model corresponding to the user low-voltage side wiring diagram is constructed; From the substation primary wiring diagram and the distribution network ring network diagram, the corresponding topological data is extracted as medium-voltage side data, and the medium-voltage side data is fitted into the low-voltage topological model by using a preset visual model tool to obtain a visual topological model containing medium-voltage data and low-voltage data.

3. The method of claim 1, wherein, The specific steps of correcting and updating the visual topological model according to the actual operation data of the substation and the distribution network ring network include: Obtain the node information in the visual topological model, and compare it with the node information in the actual operation data corresponding to the substation and the distribution network ring network to check whether there is omission or error; wherein the node is used to represent the primary equipment in the substation, the distribution network ring network equipment or the power utilization equipment; Obtain the line information in the visual topological model, and compare it with the line information in the actual operation data corresponding to the substation and the distribution network ring network to check whether the connection relationship of the line is correct; Obtain the switch state in the visual topological model, and compare it with the switch state in the actual operation data corresponding to the substation and the distribution network ring network to check whether the closing and opening states of the switch are consistent; According to the comparison result, one or more of the node information, line information and switch state in the visual topology model is corrected and updated.

4. The method of claim 1, wherein, According to the updated visual topology model, a power supply guarantee map of the distribution network ring network to the user low-voltage side is automatically drawn, and further, a complete power supply guarantee map of the main network, the distribution network and the user low-voltage side coexisting is automatically drawn on the power supply guarantee map of the distribution network ring network to the user low-voltage side by combining the power transmission line network map. Based on the updated visual topology model, a power supply guarantee map of the distribution network ring network to the user low-voltage side is automatically output. Based on the distribution network ring network, the power transmission line network map is automatically spliced on the power supply guarantee map of the distribution network ring network to the user low-voltage side to form a complete power supply guarantee map of the main network, the distribution network and the user low-voltage side coexisting.

5. The method of claim 1, wherein, The method further includes: The complete power supply guarantee map of the main network, the distribution network and the user low-voltage side coexisting is subjected to graphic data processing and rendering to generate a panoramic view rendering processed map.

6. A system for automatically drawing an all-hazards one-map for a power grid, the system comprising: It includes: A power grid map acquisition unit is configured to determine a power transmission line network map, a substation primary connection map, a distribution network ring network map and a user low-voltage side connection map from a specified power grid. A medium and low voltage model fusion unit is configured to construct a low-voltage topology model according to a topology relationship of the user low-voltage side connection map and in combination with actual operation data of the user low-voltage side in the specified power grid, and further fit the medium-voltage data extracted from the substation primary connection map and the distribution network ring network map to obtain a visual topology model containing medium-voltage data and low-voltage data. A model correction and update unit is configured to correct and update the visual topology model according to actual operation data of the substation and the distribution network ring network. A whole map drawing unit is configured to automatically draw a power supply guarantee map of the distribution network ring network to the user low-voltage side according to the updated visual topology model, and further automatically draw a complete power supply guarantee map of the main network, the distribution network and the user low-voltage side coexisting on the power supply guarantee map of the distribution network ring network to the user low-voltage side by combining the power transmission line network map.

7. The system for automatically mapping the power grid of claim 6, wherein, The medium and low voltage model fusion unit includes: A low-voltage side topology determination module is configured to determine user low-voltage side power consumption equipment and a topology connection mode between the power consumption equipment based on the user low-voltage side connection map; wherein the power consumption equipment includes an electric energy meter, a power grid sensor and a medium-voltage distribution transformer. A low-voltage side actual data acquisition module is configured to acquire actual operation data of the user low-voltage side, including electric energy meter power consumption actual data, power consumption notification information, power grid sensor information and medium-voltage distribution transformer address information. A low-voltage side model construction module is configured to construct a low-voltage topology model corresponding to the user low-voltage side connection map according to the topology connection mode between the power consumption equipment and in combination with the actual operation data of the user low-voltage side. The low-voltage side fusion model module is configured to extract corresponding topological data as medium-voltage side data from the substation primary wiring diagram and the distribution network loop diagram, and to fit the medium-voltage side data into the low-voltage topological model by using a preset visualization model tool, so as to obtain a visualization topological model containing medium-voltage data and low-voltage data.

8. The system for automatically mapping the power supply of an electricity grid of claim 6, wherein, The model correction and update unit includes A first comparison module configured to obtain node information in the visualization topological model, and compare the node information with node information in actual operation data corresponding to the substation and the distribution network loop, to check whether there is any omission or error; wherein the node is used to represent primary equipment in the substation, distribution network loop equipment or power utilization equipment. A second comparison module configured to obtain line information in the visualization topological model, and compare the line information with line information in actual operation data corresponding to the substation and the distribution network loop, to check whether the connection relationship of the line is correct. A third comparison module configured to obtain switch state in the visualization topological model, and compare the switch state with switch state in actual operation data corresponding to the substation and the distribution network loop, to check whether the closing and opening states of the switch are consistent. A correction and update module configured to correct one or more of the node information, the line information and the switch state in the visualization topological model according to the comparison result, and to update.

9. The system for automatically mapping the power supply of an electricity grid of claim 6, wherein, The whole drawing unit includes: A first drawing module configured to automatically output a power supply guarantee diagram of the distribution network loop to the user low-voltage side based on the updated visualization topological model. A second drawing module configured to automatically splice the power transmission line network diagram on the power supply guarantee diagram of the distribution network loop to the user low-voltage side to form a complete power supply guarantee diagram combining the main network, the distribution network and the user low-voltage side.

10. The system for automatically mapping the power supply of an electricity grid of claim 6, wherein, Further includes: A one-diagram rendering processing unit; wherein The one-diagram rendering processing unit is configured to perform processing and rendering on the complete power supply guarantee diagram combining the main network, the distribution network and the user low-voltage side to generate a panorama view rendering processing one-diagram.

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