A power important user panoramic situation awareness system and power supply path display method

Abstract

The application provides a power important user panoramic situation awareness system and a power supply path display method, and belongs to the technical field of power system monitoring. The system comprises a power supply path analysis module which analyzes power supply nodes of the power important user layer by layer, obtains the power supply path of the power important user and describes the power supply path, and updates the power supply path in real time according to the power grid operation condition; a power supply reliability analysis module which analyzes the faults of main breaking elements, conditional breaking elements and conditional monitoring elements, and judges whether there is a fault or the possibility of a fault; a power supply path panoramic display module which draws the power supply path of the power important user according to the power supply node level, and edits the display content of the power supply node; and an important user power supply risk display module which displays the risk points of the elements with the possibility of a fault in combination with the power supply path, and pushes the matters of the elements with a fault to alarm. The application realizes the display of the power supply path of the power important user, and improves the power supply reliability.

Description

Technical Field

[0001] This invention belongs to the field of power system monitoring technology, specifically relating to a panoramic situational awareness system for important power users and a method for displaying power supply paths. Background Technology

[0002] With increasing electricity demand, the requirements for power supply reliability are also becoming more stringent, and power supply reliability has become an important indicator of the quality of power services.

[0003] In power systems, it is often necessary to monitor the power supply reliability of critical power users. Power outages at these critical users can cause casualties, significant environmental pollution, and substantial economic losses; therefore, ensuring the power supply to these critical users is of paramount importance. These critical power users in the power system are classified into three levels: Special Grade, Grade 1, and Grade 2, each with specific requirements for power supply reliability. Currently, monitoring of critical power users in the power system primarily relies on unit power flow diagrams, which cannot provide detailed information about the critical users. Furthermore, due to inconsistent telemetry and telesignaling information on the user side, tracing the relevant power sources of critical users is difficult, especially during grid faults where it is impossible to quickly locate the power supply path to critical users, severely impacting the speed of fault response and the reliability of power supply to critical users.

[0004] In summary, ensuring the reliability of power supply to critical power users is of great significance. The existing power flow diagram display method cannot display user information, makes it difficult to trace the power source of critical power users, and makes it impossible to find the power supply path when a fault occurs, thus failing to meet the high requirements for power supply reliability.

[0005] This is a shortcoming of the existing technology. Therefore, it is very necessary to provide a panoramic situational awareness system for important power users and a method for displaying power supply paths, in order to address the above-mentioned deficiencies in the existing technology. Summary of the Invention

[0006] The existing technology is of great significance for ensuring the reliability of power supply to important power users. However, the existing power flow diagram display method cannot display user information, makes it difficult to trace the power supply source of important power users, and cannot find the power supply path when a fault occurs. It cannot meet the high requirements of power supply reliability. The present invention provides a panoramic situational awareness system for important power users and a power supply path display method to solve the above technical problems.

[0007] In a first aspect, the present invention provides a panoramic sensing system for important power users, comprising:

[0008] The power supply path analysis module is used to analyze the power supply nodes of important power users layer by layer based on the topology service of the power dispatch automation system, obtain the power supply path of each important power user, describe the power supply path and update it in real time according to the power grid operation.

[0009] The power supply reliability analysis module is used to analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, through static security analysis methods, to determine whether a fault exists or the possibility of a fault occurring.

[0010] The power supply path panoramic display module is used to draw the power supply paths of important power users according to the power supply node hierarchy in a preset display method, and to edit the display content of the power supply nodes;

[0011] The critical user power supply risk display module is used to display risk points of components that may be faulty in combination with the power supply path, and to push event alarms to components that are faulty.

[0012] Furthermore, the power supply path analysis module includes:

[0013] The important user list acquisition unit is used to acquire a list of important power users to be monitored.

[0014] The power supply path generation unit is used to use the topology service of the power dispatch automation system to perform real-time analysis of the power supply nodes of each important power user layer by layer to form the power supply path of each important power user.

[0015] The power supply path real-time update unit is used to update the power supply path of each important power user in real time according to the real-time changes in the power grid operation.

[0016] The power supply path description unit is used to generate description information of the power supply path according to the preset power supply path description format.

[0017] The power supply path writing unit is used to save the description information of the power supply paths of each important power user to the real-time data center of the power dispatch automation system.

[0018] Furthermore, the power supply reliability analysis module includes:

[0019] The main switching element fault analysis unit is used to analyze single faults and multiple faults of a single element in the power grid to determine whether a fault exists or the possibility of a fault occurring.

[0020] The fault analysis unit for conditional interruption elements and conditional monitoring elements is used to analyze conditional faults in the power grid that have conditional interruption elements and conditional monitoring elements, and to determine whether there are linked conditional faults or the possibility of conditional faults occurring.

[0021] Furthermore, the power supply path panoramic display module includes:

[0022] The power supply path drawing unit is used to obtain power supply nodes based on the power supply path analysis module, and draw the power supply path connecting the power supply nodes on the human-machine interface according to the preset display method, so as to complete the panoramic display of the path between the power supply levels of important power users.

[0023] The power supply node editing unit is used to modify the displayed content of the power supply node in response to user requests;

[0024] The unit for displaying important users related to faulty nodes is used to find the power supply paths of relevant important power users for faulty power supply nodes, display the data in a graph, count the important power users that have lost power, and issue alarms.

[0025] Furthermore, the important user power supply analysis and display module includes:

[0026] The risk point determination unit is used to identify components that may fail as risk points based on the analysis results of the power supply reliability analysis module.

[0027] The risk information display unit is used to display N-1 fault risk points and topology path risk points by color differentiation in combination with the power supply path.

[0028] The fault push unit is used to generate fault alarm items for components with faults based on the analysis results of the power supply reliability analysis module, according to the important power user information, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

[0029] Secondly, the present invention provides a method for displaying the power supply path of a panoramic perception system for important power users based on the first aspect described above, comprising the following steps:

[0030] S1. Based on the topology service of the power dispatch automation system, the power supply nodes of important power users are analyzed layer by layer to obtain the power supply path of each important power user. The power supply path is described and updated in real time according to the power grid operation.

[0031] S2. Analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, using static safety analysis methods;

[0032] S 3. Draw the power supply paths of important power users according to the power supply node hierarchy in the preset display method, and edit the display content of the power supply nodes;

[0033] S4. Based on the power supply path, display the risk points of components that may be faulty, and push notifications to alarms for components that are faulty.

[0034] Furthermore, the specific steps of step S1 are as follows:

[0035] S11. Obtain the list of important power users to be monitored, locate an important power user, and use the input device of the important power user as the current device;

[0036] S12. Obtain the connection node of the current device, determine the devices connected to the current device through the connection node, and locate one of the devices connected to the current device;

[0037] S13. Determine whether the positioning device meets the conditions for terminating the branch search;

[0038] If so, terminate the branch search and end;

[0039] If not, proceed to step S14;

[0040] S14. Determine the positioning device type;

[0041] When the positioning device type is a switch, ensure that the switch is in the closed position and proceed to step S17;

[0042] When the positioning device type is a transformer, proceed to step S15;

[0043] S15. Take a sample of the high-voltage winding from the transformer and determine whether the voltage level of the high-voltage winding is equal to the voltage of the main transformer.

[0044] If so, save the device and return a success message to end;

[0045] If not, proceed to step S16;

[0046] S16. Determine whether the transformer meets the termination branch search conditions;

[0047] If so, terminate the branch search and end;

[0048] If not, proceed to step S17;

[0049] S17. Determine whether the current device's connected devices have been located;

[0050] If so, locate the current device and return to step S12;

[0051] If not, proceed to step S18;

[0052] S18. Determine whether the current device's connected devices have been located;

[0053] If so, proceed to step S2;

[0054] If not, locate the next device connected to the current device and return to step S13.

[0055] Furthermore, the specific steps of step S13 are as follows:

[0056] S131. Determine whether the positioning device is the current device (this device);

[0057] If so, proceed to step S135;

[0058] If not, proceed to step S132;

[0059] S132. Determine whether the positioning device has already been searched;

[0060] If so, proceed to step S135;

[0061] If not, proceed to step S133;

[0062] S133. Determine whether the positioning device is an end device;

[0063] If so, proceed to step S135;

[0064] If not, proceed to step S134;

[0065] S134. Determine if the voltage level of the positioning device is lower than that of the current device;

[0066] If so, proceed to step S135;

[0067] If not, proceed to step S14;

[0068] S135. Terminate branch search, end.

[0069] Furthermore, in step S14, ensure that the switch is in the closed position. The specific steps are as follows:

[0070] Determine if the switch is in the closed position;

[0071] If so, proceed to step S17;

[0072] If not, close the switch and proceed to step S17;

[0073] The specific steps of step S16 are as follows:

[0074] S161. Determine if the voltage level of the high-voltage winding is lower than that of the current equipment;

[0075] If so, proceed to step S163;

[0076] If not, proceed to step S162;

[0077] S162. Determine if the transformer has already been searched;

[0078] If so, proceed to step S163;

[0079] If not, proceed to step S17;

[0080] S163. Terminate branch search, end.

[0081] Furthermore, the specific steps of step S2 are as follows:

[0082] S21. Analyze single faults and multiple faults of a single component in the power grid to determine whether a fault exists or the possibility of a fault occurring.

[0083] S22. Analyze the conditional faults in the power grid that have conditional disconnection elements and conditional monitoring elements, and determine whether there are linked conditional faults or the possibility of conditional faults occurring.

[0084] The specific steps of step S3 are as follows:

[0085] S 31. Based on the power supply path analysis module, the power supply nodes are obtained, and according to the preset display method, the power supply path connecting the power supply nodes is drawn on the human-machine display interface to complete the panoramic display of the path between each power supply level of important power users.

[0086] S 32. In response to a user's request, modify the content displayed for the power supply node;

[0087] S 33. For power supply nodes with faults, find the power supply paths of relevant important power users and display them on a graph, count the important power users that have lost power and issue alarms;

[0088] The specific steps of step S4 are as follows:

[0089] S41. Based on the analysis results of the power supply reliability analysis module, components that may fail are identified as risk points;

[0090] S42. Combine the power supply path and use color to distinguish the risk points to display N-1 fault risk points and topology path risk points;

[0091] S43. Based on the analysis results of the power supply reliability analysis module, for components with faults, generate fault alarm items according to the information of important power users, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

[0092] The beneficial effects of this invention are as follows:

[0093] The panoramic situational awareness system and power supply path display method for important power users provided by this invention enable a comprehensive display of important power users from various aspects such as user information, power supply path, power supply topology, and N-1 alarms. This achieves panoramic situational awareness of the power consumption of important users, effectively solves the problem of insufficient monitoring of the power grid for the power consumption of important users, and improves the power supply reliability of important users.

[0094] This invention shortens the response time for incident handling for critical users, enabling dispatchers to quickly grasp the real-time power supply path of critical users, accurately identify power supply risks, and take appropriate measures. When all power supply to a critical user's grid is interrupted, this invention can issue an alarm immediately, reducing risk identification time from minutes to seconds, thus improving the speed of incident handling and shortening outage duration.

[0095] Furthermore, the design principle of this invention is reliable, the structure is simple, and it has a very wide range of application prospects.

[0096] Therefore, it is evident that the present invention has outstanding substantive features and significant progress compared with the prior art, and the beneficial effects of its implementation are also obvious. Attached Figure Description

[0097] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0098] Figure 1 This is a schematic diagram of the panoramic situational awareness system for important power users according to the present invention.

[0099] Figure 2 This is a schematic flowchart of Embodiment 2 of the power supply path display method of the panoramic situational awareness system for important power users of the present invention.

[0100] Figure 3 This is a flowchart of Embodiment 3 of the power supply path display method of the panoramic situational awareness system for important power users of the present invention.

[0101] Figure 4 This is a flowchart illustrating whether the positioning device in this invention meets the conditions for terminating the branch search.

[0102] Figure 5 This is a flowchart illustrating the process of determining whether a transformer meets the conditions for terminating a branch search in this invention. Detailed Implementation

[0103] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0104] Example 1:

[0105] Ensuring reliable power supply to critical power users is of paramount importance. However, existing power flow diagrams fail to display user information, making it difficult to trace the power sources for these users and locate power supply paths during faults. These technical issues prevent the fulfillment of high reliability requirements. Figure 1 As shown, the present invention provides a panoramic sensing system for important power users, comprising:

[0106] The power supply path analysis module is used to analyze the power supply nodes of important power users layer by layer based on the topology service of the power dispatch automation system, obtain the power supply path of each important power user, describe the power supply path, and update it in real time according to the power grid operation status. The power supply path analysis module includes:

[0107] The important user list acquisition unit is used to acquire a list of important power users to be monitored.

[0108] The power supply path generation unit is used to use the topology service of the power dispatch automation system to perform real-time analysis of the power supply nodes of each important power user layer by layer to form the power supply path of each important power user.

[0109] The power supply path real-time update unit is used to update the power supply path of each important power user in real time according to the real-time changes in the power grid operation.

[0110] The power supply path description unit is used to generate description information of the power supply path according to the pre-set power supply path description format. For example, the description information of the power supply path can be composed of the following form: "substation + line + switch + disconnector + high voltage bus + main transformer + low voltage bus (standby switch, disconnector, etc.) + switch + disconnector + load". Moreover, the power supply path description information can be described iteratively, that is, the content from the substation to the line can be described repeatedly.

[0111] The power supply path writing unit is used to save the description information of the power supply path of each important power user to the real-time data center of the power dispatch automation system.

[0112] The power supply reliability analysis module is used to analyze faults in main switching components, conditional switching components, and conditional monitoring components using static security analysis methods to determine whether a fault exists or the possibility of a fault occurring. The power supply reliability analysis module includes:

[0113] The main interrupting element fault analysis unit is used to analyze single faults and multiple faults of a single element in the power grid to determine whether a fault exists or the possibility of a fault occurring. The main interrupting element can be any element in the power grid, such as transformers, lines, generators, loads, capacitors, reactors, switches, busbars, etc. The fault of the main interrupting element can be single or multiple, and multiple faults can be the same type of element or a combination of several types of elements.

[0114] The fault analysis unit for conditional interruption and conditional monitoring elements is used to analyze conditional faults in the power grid that have conditional interruption and conditional monitoring elements to determine whether there are linked conditional faults or the possibility of conditional faults occurring. The conditional interruption and conditional monitoring elements work together to simulate secondary faults. In actual power systems, faults in certain elements may trigger the interruption or commissioning of other elements, which necessitates the introduction of conditional faults. A conditional fault is a fault with both conditional monitoring and conditional interruption elements. When the operation of the main interruption element causes the interruption monitoring element to exceed its limit, the conditional interruption element will then operate accordingly. The characteristics of conditional faults can simulate the operation of equipment such as automatic transfer switches (ATS).

[0115] The power supply path panoramic display module is used to draw the power supply paths of important power users according to the power supply node hierarchy in a preset display format, and to edit the display content of the power supply nodes; the power supply path panoramic display module includes:

[0116] The power supply path drawing unit is used to obtain power supply nodes based on the power supply path analysis module, and draw the power supply path connecting the power supply nodes on the human-machine interface according to the preset display method, so as to complete the panoramic display of the path between the power supply levels of important power users.

[0117] The power supply node editing unit is used to modify the displayed content of the power supply node in response to user requests;

[0118] The unit for displaying important users related to faulty nodes is used to find the power supply paths of relevant important power users for faulty power supply nodes, display the graph, count the important power users that have lost power, and issue alarms.

[0119] The critical user power supply risk display module is used to display potential fault points of components based on the power supply path, and to push notifications and alarms to faulty components; the critical user power supply analysis display module includes:

[0120] The risk point determination unit is used to identify components that may fail as risk points based on the analysis results of the power supply reliability analysis module.

[0121] The risk information display unit is used to display N-1 fault risk points and topology path risk points by color differentiation in combination with the power supply path. N-1 is a single fault detection development and a technical requirement for the safe operation of the power grid. Under normal operating conditions, when any component in the power system is fault-free or disconnected due to a fault, the power system can still operate stably and supply power normally, and other components are not overloaded, and the voltage and frequency are within the allowable range.

[0122] The fault push unit is used to generate fault alarm items for components with faults based on the analysis results of the power supply reliability analysis module, according to the important power user information, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

[0123] Example 2:

[0124] Ensuring reliable power supply to critical power users is of paramount importance. However, existing power flow diagrams fail to display user information, making it difficult to trace the power sources for these users and locate power supply paths during faults. These technical issues prevent the fulfillment of high reliability requirements. Figure 2 As shown, the present invention provides a power supply path display method for a panoramic perception system for important power users based on Embodiment 1, comprising the following steps:

[0125] S1. Based on the topology service of the power dispatch automation system, the power supply nodes of important power users are analyzed layer by layer to obtain the power supply path of each important power user. The power supply path is described and updated in real time according to the power grid operation.

[0126] S2. Analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, using static safety analysis methods;

[0127] S 3. Draw the power supply paths of important power users according to the power supply node hierarchy in the preset display method, and edit the display content of the power supply nodes;

[0128] S4. Based on the power supply path, display the risk points of components that may be faulty, and push notifications to alarms for components that are faulty.

[0129] Example 3:

[0130] Ensuring reliable power supply to critical power users is of paramount importance. However, existing power flow diagrams fail to display user information, making it difficult to trace the power sources for these users and locate power supply paths during faults. These technical issues prevent the fulfillment of high reliability requirements. Figure 3 As shown, the present invention provides a method for displaying the power supply path in a panoramic perception system for important power users, comprising the following steps:

[0131] S1. Based on the topology service of the power dispatch automation system, analyze the power supply nodes of important power users layer by layer to obtain the power supply path of each important power user, describe the power supply path and update it in real time according to the power grid operation status; the specific steps of step S1 are as follows:

[0132] S11. Obtain the list of important power users to be monitored, locate an important power user, and use the input device of the important power user as the current device;

[0133] S12. Obtain the connection node of the current device, determine the devices connected to the current device through the connection node, and locate one of the devices connected to the current device;

[0134] S13. Determine whether the positioning device meets the conditions for terminating the branch search;

[0135] If so, terminate the branch search and end;

[0136] If not, proceed to step S14;

[0137] S14. Determine the positioning device type;

[0138] When the positioning device type is a switch, ensure that the switch is in the closed position and proceed to step S17;

[0139] When the positioning device type is a transformer, proceed to step S15;

[0140] S15. Take a sample of the high-voltage winding from the transformer and determine whether the voltage level of the high-voltage winding is equal to the voltage of the main transformer.

[0141] If so, save the device and return a success message to end;

[0142] If not, proceed to step S16;

[0143] S16. Determine whether the transformer meets the termination branch search conditions;

[0144] If so, terminate the branch search and end;

[0145] If not, proceed to step S17;

[0146] S17. Determine whether the current device's connected devices have been located;

[0147] If so, locate the current device and return to step S12;

[0148] If not, proceed to step S18;

[0149] S18. Determine whether the current device's connected devices have been located;

[0150] If so, proceed to step S2;

[0151] If not, locate the next device connected to the current device and return to step S13;

[0152] S2. Analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, using static safety analysis methods; the specific steps of step S2 are as follows:

[0153] S21. Analyze single faults and multiple faults of a single component in the power grid to determine whether a fault exists or the possibility of a fault occurring.

[0154] S22. Analyze the conditional faults in the power grid that have conditional disconnection elements and conditional monitoring elements, and determine whether there are linked conditional faults or the possibility of conditional faults occurring.

[0155] S3. Draw the power supply paths of important power users according to the power supply node hierarchy in the preset display method, and edit the display content of the power supply nodes; the specific steps of step S3 are as follows:

[0156] S 31. Based on the power supply path analysis module, the power supply nodes are obtained, and according to the preset display method, the power supply path connecting the power supply nodes is drawn on the human-machine display interface to complete the panoramic display of the path between each power supply level of important power users.

[0157] S 32. In response to a user's request, modify the content displayed for the power supply node;

[0158] S 33. For power supply nodes with faults, find the power supply paths of relevant important power users and display them on a graph, count the important power users that have lost power and issue alarms;

[0159] S4. Based on the power supply path, identify potential faulty components and display risk points, and push notifications to alert users of faulty components; the specific steps of step S4 are as follows:

[0160] S41. Based on the analysis results of the power supply reliability analysis module, components that may fail are identified as risk points;

[0161] S42. Combine the power supply path and use color to distinguish the risk points to display N-1 fault risk points and topology path risk points;

[0162] S43. Based on the analysis results of the power supply reliability analysis module, for components with faults, generate fault alarm items according to the information of important power users, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

[0163] In some embodiments, such as Figure 4 As shown, the specific steps of step S13 are as follows:

[0164] S131. Determine whether the positioning device is the current device (this device);

[0165] If so, proceed to step S135;

[0166] If not, proceed to step S132;

[0167] S132. Determine whether the positioning device has already been searched;

[0168] If so, proceed to step S135;

[0169] If not, proceed to step S133;

[0170] S133. Determine whether the positioning device is an end device; for example, end devices include grounding devices, loads, generators, capacitors, etc.

[0171] If so, proceed to step S135;

[0172] If not, proceed to step S134;

[0173] S134. Determine if the voltage level of the positioning device is lower than that of the current device;

[0174] If so, proceed to step S135;

[0175] If not, proceed to step S14;

[0176] S135. Terminate branch search, end;

[0177] In step S14, ensure the switch is in the closed position. The specific steps are as follows:

[0178] Determine if the switch is in the closed position;

[0179] If so, proceed to step S17;

[0180] like Figure 5 As shown, the specific steps of step S16 are as follows:

[0181] S161. Determine whether the voltage level of the high-voltage winding is lower than that of the current equipment; for example, if the current equipment uses 220KV, determine whether the voltage level of the high-voltage winding is equal to 220KV.

[0182] If so, proceed to step S163;

[0183] If not, proceed to step S162;

[0184] S162. Determine if the transformer has already been searched;

[0185] If so, proceed to step S163;

[0186] If not, proceed to step S17;

[0187] S163. Terminate branch search, end.

[0188] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the invention should also be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be determined by the scope of the claims.

Claims

1. A panoramic sensing system for important power users, characterized in that, include: The power supply path analysis module is used to analyze the power supply nodes of important power users layer by layer based on the topology service of the power dispatch automation system, obtain the power supply path of each important power user, describe the power supply path and update it in real time according to the power grid operation. The power supply reliability analysis module is used to analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, through static security analysis methods, to determine whether a fault exists or the possibility of a fault occurring. The power supply path panoramic display module is used to draw the power supply paths of important power users according to the power supply node hierarchy in a preset display method, and to edit the display content of the power supply nodes; The critical user power supply risk display module is used to display the risk points of components that may be faulty in combination with the power supply path, and to push event alarms to components that are faulty; The power supply path analysis module includes: The important user list acquisition unit is used to acquire a list of important power users to be monitored. The power supply path generation unit is used to use the topology service of the power dispatch automation system to perform real-time analysis of the power supply nodes of each important power user layer by layer to form the power supply path of each important power user. The power supply path real-time update unit is used to update the power supply path of each important power user in real time according to the real-time changes in the power grid operation. The power supply path description unit is used to generate description information of the power supply path according to the preset power supply path description format. The power supply path writing unit is used to save the description information of the power supply paths of each important power user to the real-time data center of the power dispatch automation system.

2. The panoramic perception system for important power users as described in claim 1, characterized in that, The power supply reliability analysis module includes: The main switching element fault analysis unit is used to analyze single faults and multiple faults of a single element in the power grid to determine whether a fault exists or the possibility of a fault occurring. The fault analysis unit for conditional interruption elements and conditional monitoring elements is used to analyze conditional faults in the power grid that have conditional interruption elements and conditional monitoring elements, and to determine whether there are linked conditional faults or the possibility of conditional faults occurring.

3. The panoramic perception system for important power users as described in claim 1, characterized in that, The power supply path panoramic display module includes: The power supply path drawing unit is used to obtain power supply nodes based on the power supply path analysis module, and draw the power supply path connecting the power supply nodes on the human-machine interface according to the preset display method, so as to complete the panoramic display of the path between the power supply levels of important power users. The power supply node editing unit is used to modify the displayed content of the power supply node in response to user requests; The unit for displaying important users related to faulty nodes is used to find the power supply paths of relevant important power users for faulty power supply nodes, display the data in a graph, count the important power users that have lost power, and issue alarms.

4. The panoramic perception system for important power users as described in claim 1, characterized in that, The important user power supply analysis and display module includes: The risk point determination unit is used to identify components that may fail as risk points based on the analysis results of the power supply reliability analysis module. The risk information display unit is used to display N-1 fault risk points and topology path risk points by color differentiation in combination with the power supply path. The fault push unit is used to generate fault alarm items for components with faults based on the analysis results of the power supply reliability analysis module, according to the important power user information, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

5. A panoramic sensing system for important power users based on any one of claims 1-4, characterized in that, The method for demonstrating the power supply path includes the following steps: S1. Based on the topology service of the power dispatch automation system, the power supply nodes of important power users are analyzed layer by layer to obtain the power supply path of each important power user. The power supply path is described and updated in real time according to the power grid operation. S2. Analyze the faults of the main switching element, as well as the faults of the conditional switching element and the conditional monitoring element, using static safety analysis methods; S3. Draw the power supply paths of important power users according to the power supply node hierarchy in the preset display method, and edit the display content of the power supply nodes; S4. Based on the power supply path, display the risk points of components that may be faulty, and push notifications to alarms for components that are faulty; The specific steps of step S1 are as follows: S11. Obtain the list of important power users to be monitored, locate an important power user, and use the input device of the important power user as the current device; S12. Obtain the connection node of the current device, determine the devices connected to the current device through the connection node, and locate one of the devices connected to the current device; S13. Determine whether the positioning device meets the conditions for terminating the branch search; If so, terminate the branch search and end; If not, proceed to step S14; S14. Determine the positioning device type; When the positioning device type is a switch, ensure that the switch is in the closed position and proceed to step S17; When the positioning device type is a transformer, proceed to step S15; S15. Take a sample of the high-voltage winding from the transformer and determine whether the voltage level of the high-voltage winding is equal to the voltage of the main transformer. If so, save the device and return a success message to end; If not, proceed to step S16; S16. Determine whether the transformer meets the termination branch search conditions; If so, terminate the branch search and end; If not, proceed to step S17; S17. Determine whether the current device's connected devices have been located; If so, locate the current device and return to step S12; If not, proceed to step S18; S18. Determine whether the current device's connected devices have been located; If so, proceed to step S2; If not, locate the next device connected to the current device and return to step S13.

6. The power supply path display method as described in claim 5, characterized in that, The specific steps of step S13 are as follows: S131. Determine whether the positioning device is the current device; If so, proceed to step S135; If not, proceed to step S132; S132. Determine whether the positioning device has already been searched; If so, proceed to step S135; If not, proceed to step S133; S133. Determine whether the positioning device is an end device; If so, proceed to step S135; If not, proceed to step S134; S134. Determine if the voltage level of the positioning device is lower than that of the current device; If so, proceed to step S135; If not, proceed to step S14; S135. Terminate branch search, end.

7. The power supply path display method as described in claim 5, characterized in that, In step S14, ensure the switch is in the closed position. The specific steps are as follows: Determine if the switch is in the closed position; If so, proceed to step S17; If not, close the switch and proceed to step S17; The specific steps of step S16 are as follows: S161. Determine if the voltage level of the high-voltage winding is lower than that of the current equipment; If so, proceed to step S163; If not, proceed to step S162; S162. Determine if the transformer has already been searched; If so, proceed to step S163; If not, proceed to step S17; S163. Terminate branch search, end.

8. The power supply path display method as described in claim 5, characterized in that, The specific steps of step S2 are as follows: S21. Analyze single faults and multiple faults of a single component in the power grid to determine whether a fault exists or the possibility of a fault occurring. S22. Analyze the conditional faults in the power grid that have conditional disconnection elements and conditional monitoring elements, and determine whether there are linked conditional faults or the possibility of conditional faults occurring. The specific steps of step S3 are as follows: S31. Based on the power supply path analysis module, the power supply nodes are obtained, and according to the preset display method, the power supply path connecting the power supply nodes is drawn on the human-machine interface to complete the panoramic display of the path between the power supply levels of important power users. S32. In response to the user's request, modify the content displayed for the power supply node; S33. For power supply nodes with faults, find the power supply paths of relevant important power users and display them on a graph, count the important power users that have lost power and issue alarms; The specific steps of step S4 are as follows: S41. Based on the analysis results of the power supply reliability analysis module, components that may fail are identified as risk points; S42. Combine the power supply path and use color to distinguish the risk points to display N-1 fault risk points and topology path risk points; S43. Based on the analysis results of the power supply reliability analysis module, for components with faults, generate fault alarm items according to the information of important power users, relevant substation information and power supply risk alarm information, and push them to the human-machine interface through the item window.

Images