Intelligent sensing and fault positioning monitoring system for tripping of power transmission and transformation equipment

Abstract

The invention discloses a power transmission and transformation equipment tripping intelligent sensing and fault positioning monitoring system, which comprises a power transmission and transformation equipment topology module, a fault indication module, a tripping sensing module and a visual display module, and relates to the technical field of power grid fault positioning. According to the power transmission and transformation equipment tripping intelligent sensing and fault positioning monitoring system, a fault tree is constructed according to a line topological graph of power transmission and transformation equipment, line branch nodes are determined, a plurality of fault areas are divided in the fault tree, and fault indicators are arranged at the head ends of the fault areas according to the current direction; the purpose of effectively monitoring a fault area is achieved, automatic sensing control on whether an electric brake is tripped or not is carried out in cooperation with a tripping function, rapid and accurate positioning conditions are provided for determination of the fault area of the power transmission and transformation equipment in cooperation with visual display of a fault tree, maintenance of operation and maintenance personnel is facilitated, meanwhile, the power recovery efficiency is effectively improved, and the power transmission and transformation efficiency is improved. And good power use experience is provided for the user.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid fault location, and in particular to a power transmission and transformation equipment tripping intelligent perception and fault location monitoring system. Background Art

[0002] The transmission of electric current often causes the line to heat up and cause losses, so during transmission, the voltage is increased through substations to reduce the current and reduce the heat loss. High voltage electricity is very dangerous, and the target electrical appliances do not need such high voltage, which requires the voltage to be reduced through substations. Since multiple substations are required during the transmission of electric current, the transmission of electric current is called transmission and transformation. Substations are power facilities that transform voltage, receive and distribute electric energy, control the flow of electricity, and adjust voltage in the power system. It connects the power grids of various voltage levels through its transformers, and various component equipment is required in substations. There are many types of these equipment, including transformers, switches, four small devices, reactive devices, and other equipment and auxiliary devices, such as wave arresters, insulators, high-voltage bushings, guide wires, grounding devices, secondary equipment, high-voltage DC equipment, etc. These equipment are collectively referred to as substation equipment.

[0003] In order to ensure the safe and efficient operation of power transmission and transformation equipment, circuit breakers are usually installed at key nodes. When sudden abnormal situations occur, greater losses can be avoided by tripping. When existing power transmission and transformation equipment trips during operation, it is often impossible to locate the fault area in a timely and effective manner, which reduces the efficiency of power grid restoration and affects the user experience. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an intelligent perception and fault location monitoring system for power transmission and transformation equipment tripping, which solves the problem that when the existing power transmission and transformation equipment trips during operation, it is often unable to locate the fault area in a timely and effective manner, thereby reducing the efficiency of power grid restoration and affecting the user experience.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent perception and fault location monitoring system for power transmission and transformation equipment tripping, including an equipment monitoring platform, the equipment monitoring platform includes a power transmission and transformation equipment topology module, a fault indication module, a trip perception module and a visualization display module, the power transmission and transformation equipment topology module is respectively connected with the fault indication module and the trip perception module, and the fault indication module and the trip perception module are both connected with the visualization display module; the power transmission and transformation equipment topology module includes a node analysis unit, a fault tree building unit and a fault area binding unit, the node analysis unit is connected with the fault tree building unit, and the fault tree building unit It is connected to the fault area binding unit; the fault indication module includes a fault indicator layout unit, a node identification unit and a signal transmission unit, the fault indicator layout unit is connected to the node identification unit, and the node identification unit is connected to the signal transmission unit; the tripping perception module includes a data acquisition unit, a threshold comparison unit and a tripping positioning unit, the data acquisition unit is connected to the threshold comparison unit, and the threshold comparison unit is connected to the tripping positioning unit; the visualization display module includes a topology display unit, an information synchronization unit and a fault alarm unit, the topology display unit is connected to the information synchronization unit, and the information synchronization unit is connected to the fault alarm unit.

[0006] Furthermore, the node analysis unit is used to construct a power grid topology map based on the actual line laying information of the power transmission and transformation equipment, and mark the line branch nodes and switch nodes in the power grid topology map; the fault tree construction unit is used to construct a fault tree in the power grid topology map according to the actual current direction, wherein the trunk line in the power grid topology map is used as the fault tree trunk, and the branch line in the power grid topology map is used as the fault tree branch, and the line branch nodes are highlighted; the fault area binding unit is used to mark the line between two adjacent highlighted marks in the fault tree as a fault area, obtain a plurality of fault areas, and bind the fault areas with unique identifiers.

[0007] Furthermore, the fault indicator layout unit is used to layout the fault indicator at the real line corresponding to the head end of different fault areas along the real current direction; the node identification unit is used to identify the fault monitoring node at the fault indicator layout location, and add a unique identification to the fault monitoring node identification location; the signal transmission unit is used to establish a communication channel between the fault indicator and the visualization display module, and upload the working status of the fault indicator to the visualization display module.

[0008] Furthermore, the signal transmission unit includes a wireless communication module and a wired communication module, and the wireless communication module uses a low-power wide area network for long-distance communication.

[0009] Furthermore, the data acquisition unit is used to collect real power grid data at the switch node; the threshold comparison unit is used to formulate corresponding safety working thresholds for different switch nodes as alarm thresholds, and judge whether the switch corresponding to the switch node trips through the tripping function; the tripping positioning unit is used to obtain the unique identifier of the fault area where the switch node corresponding to the tripping point is located after the switch trips, and feed it back to the visualization display module.

[0010] Furthermore, the trip function is constructed as follows:

[0011]

[0012] In the formula, I ij (t) is the jth parameter value of the i-th switch node at time t, T ij is the safe working threshold of the jth parameter of the i-th switch node, ∈ i is the threshold parameter of the i-th switch node.

[0013] Furthermore, the threshold comparison unit includes an adaptive adjustment module, which is used to dynamically update the safe working threshold T by combining historical operation data and real-time operation data. ij .

[0014] Furthermore, the safe working threshold T ij The expression is:

[0015] T ij =μ ij +k·σ ij +f(E, L, φ),

[0016] f(E, L, φ) = w E ·g E (E)+w L ·g L (L)+w φ ·g φ (φ),

[0017] g E (E) = α T (T-T0)+α H (H-H0),

[0018]

[0019] g φ (φ)=γ M M+γ F F,

[0020] Where, T ij represents the safe working threshold, μij represents the historical mean value of the jth parameter of the i-th switch node, σ ij represents the historical standard deviation of the jth parameter of the i-th switch node, where parameter j includes but is not limited to electrical parameters, temperature, humidity, and load and energy parameters, k represents the safety margin coefficient, and f(E, L, φ) represents the correction function of the environment and operating conditions; g E (E) represents the environmental factor correction function, T represents the ambient temperature, T0 represents the reference temperature, H represents the humidity, H0 represents the reference humidity, α T represents the temperature sensitivity coefficient, α H Indicates the sensitivity coefficient of humidity, g L (L) represents the load factor correction function, L represents the current load, L max represents the maximum design load of the node, β L represents the load sensitivity coefficient, n represents the nonlinear adjustment coefficient, g φ (φ) represents the node attribute correction function, M represents the node attribute identifier, trunk: 1, branch: 0, F represents the historical fault impact factor, based on the number of faults and severity statistics, γ M Represents the sensitivity coefficient of node attribute identification, γ F Represents the sensitivity coefficient of the historical fault impact factor.

[0021] Furthermore, the topology display unit is used to visualize the fault tree and communicate with the signal transmission unit and the tripping positioning unit; the information synchronization unit is used to obtain the working status information of the fault indicator and the unique identifier of the fault area where the tripping switch node is located, and to synchronize the information in the fault tree; the fault alarm unit is used to receive the fault area information and to voice broadcast an alarm for the unique identifier corresponding to the fault area.

[0022] The present invention provides a system for intelligently sensing and locating faults in power transmission and transformation equipment, which has the following beneficial effects:

[0023] 1. Accurate fault perception and location: Through the collaboration between the fault tree building unit and the fault area binding unit, a fault tree can be built and the fault area can be uniquely identified and bound according to the grid topology and the actual current trend. This design ensures the accuracy of fault perception and location, and provides a clear direction for subsequent fault handling. After detecting that the switch node has tripped, the trip location unit quickly feeds back the unique identification of the fault area, significantly shortening the fault location time;

[0024] 2. Dynamically adapt to complex working conditions: The threshold comparison unit dynamically updates the safe working threshold through the adaptive adjustment module, combined with historical operating data and real-time operating data. This dynamic threshold design enables the system to adapt to complex and changeable operating conditions, reducing the possibility of false alarms and missed alarms. The correction function comprehensively considers factors such as ambient temperature, humidity, load, and node attributes to achieve adaptive adjustment to various operating conditions, enhancing the reliability of the system in various environments;

[0025] 3. Efficient communication and information synchronization: The signal transmission unit adopts wireless communication module (low-power wide area network) and wired communication module, which can flexibly respond to the communication needs of different scenarios and ensure the real-time and stability of the system. The information synchronization unit integrates the synchronous display of the working status information of the fault indicator and the tripping location result, realizing the unified management of fault information and improving the efficiency of information processing;

[0026] 4. Intuitive visualization and alarm: The topology display unit visualizes the fault tree and real-time operation data, providing a clear grid status diagram for operation and maintenance personnel. The fault alarm unit provides multi-mode alarms with voice broadcast and graphic display, making the transmission of fault information more efficient and user-friendly, and facilitating rapid response and processing.

[0027] 5. High safety and stability: The tripping function is calculated based on parameter deviation. Through multi-parameter dynamic monitoring and margin verification, the accuracy of tripping judgment is ensured, and false operation is effectively avoided. The threshold setting method of combining historical mean and standard deviation with safety margin coefficient enhances the robustness of the system to the operation status of the power grid and reduces safety hazards in extreme situations.

[0028] In summary, the present invention constructs a fault tree according to the line topology diagram of the power transmission and transformation equipment, divides the fault tree into several fault areas by determining the line branch nodes, and arranges fault indicators at the head end of the fault area according to the current direction, so as to achieve the purpose of effectively monitoring the fault area, and cooperates with the tripping function to automatically sense and control whether the switch trips, and cooperates with the visual display of the fault tree to provide rapid and accurate positioning conditions for determining the fault area of ​​the power transmission and transformation equipment, which is convenient for operation and maintenance personnel to inspect and repair, effectively improves the power restoration efficiency, and provides users with a good power usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a power transmission and transformation equipment topology module of the power transmission and transformation equipment tripping intelligent perception and fault location monitoring system of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a fault indication module of the intelligent perception and fault location monitoring system for power transmission and transformation equipment tripping of the present invention;

[0032] Figure 4 It is a structural schematic diagram of a tripping sensing module of the intelligent tripping sensing and fault location monitoring system for power transmission and transformation equipment of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the visual display module of the intelligent perception and fault location monitoring system for power transmission and transformation equipment tripping of the present invention.

[0034] In the figure:

[0035] 1. Equipment monitoring platform;

[0036] 2. Power transmission and transformation equipment topology module; 201. Node analysis unit; 202. Fault tree building unit; 203. Fault area binding unit;

[0037] 3. Fault indication module; 301. Fault indicator layout unit; 302. Node identification unit; 303. Signal transmission unit;

[0038] 4. Trip sensing module; 401. Data acquisition unit; 402. Threshold value comparison unit; 403. Trip positioning unit;

[0039] 5. Visual display module; 501. Topology display unit; 502. Information synchronization unit; 503. Fault alarm unit. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] See also Figure 1-5The embodiment of the present invention provides the following technical solutions: a power transmission and transformation equipment tripping intelligent perception and fault location monitoring system, including an equipment monitoring platform 1 composed of a power transmission and transformation equipment topology module 2, a fault indication module 3, a tripping perception module 4 and a visualization display module 5, wherein, in order to facilitate the analysis of the power transmission situation of the power transmission and transformation equipment, the power transmission and transformation equipment topology module 2 includes a node analysis unit 201, a fault tree building unit 202 and a fault area binding unit 203, the node analysis unit 201 is used to build a power grid topology map according to the real line laying information of the power transmission and transformation equipment, and mark the line branch nodes and switch nodes in the power grid topology map, wherein the line branch node is the connection point between the line trunk and the line branch, and the switch node is the installation point of the switch on the line, the node analysis unit 201 is connected with the fault tree building unit 202, and the fault tree building unit 202 is used to build a fault tree in the power grid topology map according to the real current trend, wherein the trunk line in the power grid topology map is used as the fault tree trunk, and the branch line in the power grid topology map is used as the fault tree branch, and the line branch node is highlighted.

[0042] Further explanation, in order to quickly determine the fault area when a fault occurs, the fault tree building unit 202 is connected to the fault area binding unit 203. The fault area binding unit 203 is used to mark the line between two adjacent prominent marks in the fault tree as a fault area, obtain several fault areas, and bind the fault areas with unique identifiers.

[0043] As a preferred solution, in order to achieve efficient fault location, the fault indication module 3 includes a fault indicator layout unit 301, a node identification unit 302 and a signal transmission unit 303. The fault indicator layout unit 301 is used to layout the fault indicator at the real line corresponding to the head end of different fault areas along the real current direction;

[0044] The fault indicator placement unit 301 is connected to the node identification unit 302, and the node identification unit 302 is used to identify the fault monitoring node at the fault indicator placement location and add a unique identification to the fault monitoring node identification location;

[0045] The node identification unit 302 is connected to the signal transmission unit 303. The signal transmission unit 303 is used to establish a communication channel between the fault indicator and the visualization display module 5, and upload the working status of the fault indicator to the visualization display module 5. The signal transmission unit 303 includes a wireless communication module and a wired communication module. The wireless communication module uses a low-power wide area network for long-distance communication.

[0046] As a preferred solution, in order to realize automatic tripping perception, the tripping perception module 4 includes a data acquisition unit 401, a threshold comparison unit 402 and a tripping positioning unit 403. The data acquisition unit 401 is used to collect real power grid data at the switch node. The data acquisition unit 401 is connected to the threshold comparison unit 402. The threshold comparison unit 402 is used to formulate corresponding safety working thresholds for different switch nodes as alarm thresholds. The tripping function is used to determine whether the switch corresponding to the switch node performs a tripping action. The construction method of the tripping function includes:

[0047]

[0048] In the formula, I ij (t) is the jth parameter value of the i-th switch node at time t, T ij is the safe working threshold of the jth parameter of the i-th switch node, ∈ i is the threshold parameter of the i-th switch node.

[0049] The threshold comparison unit 402 is connected to the tripping positioning unit 403. The tripping positioning unit 403 is used to obtain the unique identifier of the fault area where the corresponding tripping switch node is located after the switch performs a tripping action, and feed it back to the visualization display module 5. The threshold comparison unit 402 includes an adaptive adjustment module, which is used to dynamically update the safe working threshold T by combining historical operation data and real-time operation data. ij .

[0050] Preferably, the safe working threshold T ij The expression is:

[0051] T ij =μ ij +k·σ ij +f(E, L, φ),

[0052] f(E, L, φ) = w E ·g E (E)+w L ·g L (L)+w φ ·g φ (φ),

[0053] g E (E) = α T (T-T0)+α H (H-H0),

[0054]

[0055] g φ (φ)=γ M M+γF F,

[0056] Where, T ij represents the safe working threshold, μ ij represents the historical mean value of the jth parameter of the i-th switch node, σ ij represents the historical standard deviation of the jth parameter of the i-th switch node, where parameter j includes but is not limited to electrical parameters, temperature, humidity, and load and energy parameters, k represents the safety margin coefficient, and f(E, L, φ) represents the correction function of the environment and operating conditions; g E (E) represents the environmental factor correction function, T represents the ambient temperature, T0 represents the reference temperature, H represents the humidity, H0 represents the reference humidity, α T represents the temperature sensitivity coefficient, α H Indicates the sensitivity coefficient of humidity, g L (L) represents the load factor correction function, L represents the current load, L max represents the maximum design load of the node, β L represents the load sensitivity coefficient, n represents the nonlinear adjustment coefficient, g φ (φ) represents the node attribute correction function, M represents the node attribute identifier, trunk: 1, branch: 0, F represents the historical fault impact factor, based on the number of faults and severity statistics, γ M Represents the sensitivity coefficient of node attribute identification, γ F Represents the sensitivity coefficient of the historical fault impact factor.

[0057] As a preferred solution, in order to achieve an intuitive understanding of the power operation status of the power transmission and transformation equipment, the visualization display module 5 includes a topology display unit 501, an information synchronization unit 502 and a fault alarm unit 503. The topology display unit 501 is used to visualize the fault tree and communicate with the signal transmission unit 303 and the trip positioning unit 403.

[0058] The topology display unit 501 is connected to the information synchronization unit 502. The information synchronization unit 502 is used to obtain the working status information of the fault indicator and the unique identifier of the fault area where the tripping switch node is located, and to synchronize the information in the fault tree. The information synchronization unit 502 is connected to the fault alarm unit 503. The fault alarm unit 503 is used to receive the fault area information and perform voice broadcast alarm for the unique identifier corresponding to the fault area.

[0059] The method of using the above system includes the following steps:

[0060] S1. Visual construction: The node analysis unit 201 constructs a power grid topology map according to the real line laying information of the power transmission and transformation equipment, and marks the line branch nodes and switch nodes in the power grid topology map. The fault tree construction unit 202 constructs a fault tree in the power grid topology map according to the real current trend, wherein the trunk line in the power grid topology map is used as the trunk of the fault tree, and the branch line in the power grid topology map is used as the branch of the fault tree, and the line branch nodes are highlighted and marked, and then the topology display unit 501 performs visual display;

[0061] S2, fault indication: the fault area binding unit 203 marks the line between two adjacent prominent marks in the fault tree as a fault area, obtains several fault areas, and after binding the fault areas with unique identifiers, performs visual display in the topology display unit 501, arranges fault indicators at the real lines corresponding to the head ends of different fault areas along the real current direction, the node identification unit 302 identifies the fault monitoring nodes at the locations where the fault indicators are arranged, and adds a unique identifier to the locations where the fault monitoring nodes are identified, the signal transmission unit 303 establishes a communication channel between the fault indicator and the topology display unit 501, and uploads the working status of the fault indicator to the topology display unit 501 for visual display;

[0062] S3, tripping perception: the data acquisition unit 401 collects the real power grid data at the switch node, and the threshold comparison unit 402 is used to formulate the corresponding safety working threshold for different switch nodes as the alarm threshold, and judge whether the switch corresponding to the switch node performs a tripping action through the tripping function. Specifically, the construction method of the tripping function includes:

[0063]

[0064] In the formula, I ij (t) is the jth parameter value of the i-th switch node at time t, T ij is the safe working threshold of the jth parameter of the i-th switch node, ∈ i is the threshold parameter of the i-th switch node;

[0065] When it is determined that a tripping action is required, the switch is controlled to trip. After the switch trips, the tripping location unit 403 obtains a unique identifier of the fault area where the switch node at the corresponding tripping location is located, and feeds it back to the information synchronization unit 502, and the fault tree is visualized in the topology display unit 501;

[0066] S4. Fault alarm: When the working state of the fault indicator is abnormal or the switch node trips, the warning light of the fault area where the fault indicator is located or the fault area where the switch node corresponding to the tripped switch is located will flash as a reminder, and a voice alarm will be broadcast according to the unique identifier corresponding to the fault area.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power transmission and transformation equipment tripping intelligent perception and fault location monitoring system, comprising an equipment monitoring platform (1), characterized in that: The equipment monitoring platform (1) comprises a power transmission and transformation equipment topology module (2), a fault indication module (3), a tripping perception module (4) and a visualization display module (5); the power transmission and transformation equipment topology module (2) is respectively connected to the fault indication module (3) and the tripping perception module (4); the fault indication module (3) and the tripping perception module (4) are both connected to the visualization display module (5); the power transmission and transformation equipment topology module (2) comprises a node analysis unit (201), a fault tree building unit (202) and a fault area binding unit (203); the node analysis unit (201) is connected to the fault tree building unit (202), and the fault tree building unit (202) is connected to the fault area binding unit (203); the fault indication module (3) comprises a fault indicator layout unit (301), a node identification unit (302), and a fault area binding unit (203); 2) and a signal transmission unit (303), the fault indicator layout unit (301) is connected to the node identification unit (302), and the node identification unit (302) is connected to the signal transmission unit (303); the tripping perception module (4) includes a data acquisition unit (401), a threshold comparison unit (402) and a tripping positioning unit (403), the data acquisition unit (401) is connected to the threshold comparison unit (402), and the threshold comparison unit (402) is connected to the tripping positioning unit (403); the visualization display module (5) includes a topology display unit (501), an information synchronization unit (502) and a fault alarm unit (503), the topology display unit (501) is connected to the information synchronization unit (502), and the information synchronization unit (502) is connected to the fault alarm unit (503).

2. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 1 is characterized in that: The node analysis unit (201) is used to construct a power grid topology map according to the real line laying information of the power transmission and transformation equipment, and mark the line branch nodes and switch nodes in the power grid topology map; The fault tree building unit (202) is used to build a fault tree in a power grid topology diagram according to the actual current trend, wherein the trunk line in the power grid topology diagram is used as the trunk of the fault tree, the branch line in the power grid topology diagram is used as the branch of the fault tree, and the line branch nodes are highlighted; The fault area binding unit (203) is used to mark the line between two adjacent prominent marks in the fault tree as a fault area, obtain a plurality of fault areas, and perform unique identification binding on the fault areas.

3. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 1 is characterized in that: The fault indicator placement unit (301) is used to place fault indicators at real lines corresponding to the head ends of different fault areas along the real current direction; the node identification unit (302) is used to identify the fault monitoring node at the fault indicator placement location, and to add a unique identification to the fault monitoring node identification location; the signal transmission unit (303) is used to establish a communication channel between the fault indicator and the visualization display module (5), and to upload the working status of the fault indicator to the visualization display module (5).

4. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 3 is characterized in that: The signal transmission unit (303) comprises a wireless communication module and a wired communication module, and the wireless communication module uses a low-power wide area network to perform long-distance communication.

5. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 1 is characterized in that: The data acquisition unit (401) is used to collect real power grid data at the switch node; the threshold comparison unit (402) is used to formulate corresponding safety working thresholds for different switch nodes as alarm thresholds, and to determine whether the switch corresponding to the switch node performs a tripping action through a tripping function; the tripping positioning unit (403) is used to obtain a unique identifier of a fault area where the switch node at the corresponding tripping point is located after the switch performs a tripping action, and feed it back to the visual display module (5).

6. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 5 is characterized in that: The trip function is constructed as follows: In the formula, I ij (t) is the jth parameter value of the i-th switch node at time t, T ij is the safe working threshold of the jth parameter of the i-th switch node, ∈ i is the threshold parameter of the i-th switch node.

7. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 5 is characterized by: The threshold comparison unit (402) includes an adaptive adjustment module, which is used to dynamically update the safe working threshold T by combining historical operation data and real-time operation data. ij .

8. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 7 is characterized in that: The safe working threshold T ij The expression is: T ij =μ ij +k·s ij +f(E, L, φ), f(E, L, φ)=w E ·g E (E)+w L ·g L (L)+w φ ·g φ (φ), g E (E)=α T ·(T-T0)+α H ·(H-H0), g φ (φ)=γ M ·M+γ F ·F, Where, T ij represents the safe working threshold, μ ij represents the historical mean value of the jth parameter of the i-th switch node, σ ij represents the historical standard deviation of the jth parameter of the i-th switch node, where parameter j includes but is not limited to electrical parameters, temperature, humidity, and load and energy parameters, k represents the safety margin coefficient, and f(E, L, φ) represents the correction function of the environment and operating conditions; g E (E) represents the environmental factor correction function, T represents the ambient temperature, T0 represents the reference temperature, H represents the humidity, H0 represents the reference humidity, α T represents the temperature sensitivity coefficient, α H Indicates the sensitivity coefficient of humidity, g L (L) represents the load factor correction function, L represents the current load, L max represents the maximum design load of the node, β L represents the load sensitivity coefficient, n represents the nonlinear adjustment coefficient, g φ (φ) represents the node attribute correction function, M represents the node attribute identifier, trunk: 1, branch: 0, F represents the historical fault impact factor, based on the number of faults and severity statistics, γ M Represents the sensitivity coefficient of node attribute identification, γ F Represents the sensitivity coefficient of the historical fault impact factor.

9. The intelligent sensing and fault location monitoring system for power transmission and transformation equipment tripping according to claim 1 is characterized by: The topology display unit (501) is used to visualize the fault tree and communicate with the signal transmission unit (303) and the tripping location unit (403); the information synchronization unit (502) is used to obtain the working status information of the fault indicator and the unique identifier of the fault area where the tripping switch node is located, and to perform information synchronization display in the fault tree; The fault alarm unit (503) is used to, when receiving the fault area information, broadcast a voice alarm for the unique identifier corresponding to the fault area.

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