CN115085378A - Virtual substation troubleshooting and positioning method based on digital twin technology - Google Patents
Virtual substation troubleshooting and positioning method based on digital twin technology Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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- G06F30/20—Design optimisation, verification or simulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
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- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The invention relates to the technical field of substation maintenance and management, in particular to a virtual substation troubleshooting and positioning method based on a digital twin technology. The method comprises the following steps: constructing a virtual transformer substation system; manufacturing a three-dimensional fault positioning system; performing data visualization display; and (5) carrying out grid situation reckoning. The design of the invention can visualize the operation mode of the transformer substation, can display the current operation condition of the transformer substation and carry out prediction simulation deduction; the primary and secondary fault positions of the transformer substation can be quickly and accurately positioned, fault reverse deduction is carried out, tedious transformer substation fault troubleshooting work is omitted, flow management and control can be carried out on maintenance work, and auxiliary decisions can be provided for newly-advanced power maintenance personnel with insufficient experience; the situation monitoring and early warning and visual analysis are carried out on the basis of multiple dimensions such as time and space data, large-scale linkage cooperation work can be carried out by professional departments of coordinated scheduling, overhauling and operation and maintenance, and the influences of power grid mode conversion and tide situation on the transformer substation can be determined in an auxiliary mode.
Description
Technical Field
The invention relates to the technical field of substation maintenance and management, in particular to a virtual substation troubleshooting and positioning method based on a digital twin technology.
Background
The location for changing the voltage is called a substation. With the continuous development of science and technology and the continuous rising of the demands of daily life production on power consumption and power consumption quality, the service pressure of the transformer substation is higher and higher. The transformer substation is wide in occupied area, multiple in related equipment and multiple and complex in circuit connection, and the work of daily maintenance and management is particularly heavy. In order to reduce the manual workload, the power grid simulation system is generated. However, there are still more limitations in the current substation maintenance process, such as:
1. the existing power grid simulation system is difficult to accurately analyze and investigate fault points, faults exist for a long time easily, transformer substation fault investigation is complicated, repeated work is often performed, and the flow management and control and scheduling of maintenance work cannot be performed;
2. for sudden faults of the transformer substation, new power inlet and transformation personnel are difficult to analyze the positions of the fault reasons;
3. at present, the background display of the transformer substation mainly utilizes two-dimensional graphic display, and the expressive force is fuzzy.
4. The cable in the transformer substation passes through the structure complicacy, when the defect takes place in the cable pit, because obstacles such as topography position, some trouble is difficult to discover.
In view of the above, a virtual substation troubleshooting and positioning method based on a digital twin technology is provided.
Disclosure of Invention
The invention aims to provide a virtual substation troubleshooting and positioning method based on a digital twin technology, so as to solve the problems in the background technology.
In order to solve the technical problems, one of the objectives of the present invention is to provide a virtual substation troubleshooting and positioning method based on a digital twin technology, which includes the following steps:
s1, constructing a virtual substation system: performing analog simulation on the primary system of the transformer substation by using a digital twinning technology to construct a digital twinning system of the transformer substation; utilizing various collected data to quickly construct multiple engines; forming a high-definition 3D image by using a three-dimensional modeling technology; simulating virtual operation conditions in the transformer substation through a digital modeling technology, a stereo synthesis technology and an interaction technology;
s2, manufacturing a three-dimensional fault positioning system: the method comprises the steps of adopting a multi-device data implementation operation mode to build immediately, and carrying out summary modeling on mass data acquired by each device from primary equipment; integrating a three-dimensional space transformer substation, equipment position information and physical parameter display into a whole by using an edge computing technology; virtual efficient modeling is adopted, intelligent real-time display is carried out, high-performance fault location is carried out, and fault reverse deduction is carried out;
s3, performing data visualization display: the method comprises the steps of instantaneously setting up various types of data, integrating multiple data in real time, responding and integrating the data in real time, and generating a big data platform according to the data collected by a transformer substation gateway; the system supports multi-device interface access and various types of communication protocols, can realize automatic data extraction, performs data storage in a distributed manner, and provides comprehensive visual data support for a virtual substation;
s4, carrying out grid situation estimation: establishing a compound digital network, establishing a future function according to instant data, and calculating and previewing the operation mode of the power grid; in the existing power grid operation mode, power flow rehearsal is performed by combining a plurality of transformer substations, and auxiliary decision is performed on the change of the power grid operation mode.
As a further improvement of the technical solution, the virtual substation system constructed in S1 shows a framework as follows: taking the primary civil engineering structure diagram as a reference, using a primary cable as a connecting line, and using a secondary cable for auxiliary connection; wherein, the primary cable is the power cable, and the secondary cable is the alternating current-direct current cable, and the alternating current-direct current separates.
As a further improvement of the present technical solution, in S2, a specific method for performing fault location by using a three-dimensional fault location system includes: firstly, parameters of each protection device are summarized in a three-dimensional fault positioning system, wherein the parameters include but are not limited to voltage, current, frequency and the like; if the parameters are subjected to numerical value mutation or abnormal (such as 'dead number' which is unchanged for a long time), a fault signal is sent out, and the positions of the protection devices with abnormal parameters in the three-dimensional space transformer substation are marked and displayed.
As a further improvement of the present technical solution, in S2, a specific method for reverse fault deduction is as follows: firstly, classifying fault processing modes; secondly, collecting fault processing modes and establishing a fault processing method database; when faults in similar situations occur, the corresponding fault management method can be directly obtained from the fault processing method database, and the fault processing mode display is carried out.
As a further improvement of the present technical solution, in S3, the real-time integration of the multivariate data can be realized by applying edge calculation.
As a further improvement of the technical solution, in S4, the grid situation estimation, that is, data formed by the multiple digital network, is performed with load flow estimation according to a grid load flow calculation formula; the power grid load flow calculation formula includes but is not limited to a Newton-Raphson method and a PQ decomposition method.
As a further improvement of the present technical solution, in S4, the multiple digital network mainly includes three layers of structures, which are: a main frame pattern formed by the electrical device; a connection diagram formed by the primary cable and the secondary cable; the electrical parameters collected by various protective devices form a 'water flow' diagram.
As a further improvement of the technical solution, in S4, in the existing power grid operation mode, a specific method for performing power flow rehearsal by combining a plurality of substations includes: firstly, uniformly summarizing and storing data formed by all transformer substations; then converting each transformer substation into a point in sequence; then, respectively recording the input and output values of each point; and finally, reflecting the trend situation of each point through the fluctuation of the output and input value of each point.
The second objective of the present invention is to provide a virtual substation troubleshooting positioning device based on the digital twin technology, which is used for loading the virtual substation system, the three-dimensional troubleshooting positioning system, and the like, and includes a processor, a memory, and a computer program stored in the memory and running on the processor, where the processor is used for implementing the steps of the virtual substation troubleshooting positioning method based on the digital twin technology when executing the computer program.
It is a further object of the present invention to provide a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the above-mentioned method for locating a fault in a virtual substation based on a digital twinning technique.
Compared with the prior art, the invention has the beneficial effects that:
1. the virtual transformer substation troubleshooting and positioning method based on the digital twin technology can visualize the operation mode of the transformer substation, can display the current operation condition of the transformer substation and can perform prediction simulation deduction;
2. the virtual transformer substation troubleshooting positioning method based on the digital twinning technology can quickly and accurately position the primary and secondary fault positions of the transformer substation, carries out reverse fault deduction, saves complex transformer substation troubleshooting work, avoids repeated work, can carry out flow management and control on maintenance work, and can provide auxiliary decisions for newly-advanced power maintenance personnel with insufficient experience;
3. the virtual transformer substation troubleshooting and positioning method based on the digital twin technology carries out situation monitoring and early warning and visual analysis based on multiple dimensions such as time-space data, can coordinate scheduling, overhauling and operation and maintenance professional departments to carry out large-scale linkage cooperation work, and can assist in deciding the influence of power grid mode conversion and trend situation on a transformer substation.
Drawings
FIG. 1 is a block diagram of an exemplary method schematic architecture of the present invention;
FIG. 2 is a flowchart of an exemplary overall method of the present invention;
FIG. 3 is a block diagram of an exemplary electronic computer platform assembly in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to fig. 3, the present embodiment provides a virtual substation troubleshooting and positioning method based on a digital twin technology, including the following steps:
s1, constructing a virtual substation system: performing analog simulation on the primary system of the transformer substation by using a digital twinning technology to construct a digital twinning system of the transformer substation; utilizing various collected data to quickly construct multiple engines; forming a high-definition 3D image by using a three-dimensional modeling technology; simulating virtual operation conditions in the transformer substation through a digital modeling technology, a stereo synthesis technology and an interaction technology;
s2, manufacturing a three-dimensional fault positioning system: the method comprises the steps of adopting a multi-device data implementation operation mode to build immediately, and carrying out summary modeling on mass data acquired by each device from primary equipment; integrating a three-dimensional space transformer substation, equipment position information and physical parameter display into a whole by using an edge computing technology; virtual efficient modeling is adopted, intelligent real-time display is carried out, high-performance fault location is carried out, and fault reverse deduction is carried out;
s3, performing data visualization display: the method comprises the steps of instantaneously setting up various types of data, integrating multiple data in real time, responding and integrating the data in real time, and generating a big data platform according to the data collected by a transformer substation gateway; the system supports multi-device interface access and various types of communication protocols, can realize automatic data extraction, performs data storage in a distributed manner, and provides comprehensive visual data support for the virtual substation;
s4, carrying out grid situation estimation: establishing a compound digital network, establishing a future function according to instant data, and calculating and previewing the operation mode of the power grid; in the existing power grid operation mode, power flow rehearsal is performed by combining a plurality of transformer substations, and auxiliary decision is performed on the change of the power grid operation mode.
Specifically, various data of various protection devices of the current intelligent substation and the conventional substation are extracted to perform virtual substation structure simulation, so that fault analysis and situation prediction are facilitated.
In this embodiment, the virtual substation system display framework constructed in S1 is: taking the primary civil engineering structure diagram as a reference, using a primary cable as a connecting line, and using a secondary cable for auxiliary connection; the primary cable is a power cable, the secondary cable is an alternating current/direct current cable, and alternating current/direct current are separated;
the method is characterized in that a transformer substation civil engineering structure diagram and a transformer substation secondary construction diagram are taken as bases, a digital twinning technology is adopted to generate a virtual transformer substation, the virtual transformer substation respectively collects data of protection equipment and automation equipment, and after analog simulation and fault location analysis processing, the power grid situation in an operating state is output.
In this embodiment, in S2, the specific method for performing fault location by using the three-dimensional fault location system includes: firstly, parameters of each protection device are summarized in a three-dimensional fault positioning system, wherein the parameters include but are not limited to voltage, current, frequency and the like; if the parameters are subjected to numerical value mutation or abnormal (such as 'dead number' which is unchanged for a long time), a fault signal is sent out, and the positions of the protection devices with abnormal parameters in the three-dimensional space transformer substation are marked and displayed.
Specifically, a popular example is that the acquired power parameters are compared with water flow, and when a section of water flow disappears when flowing to a certain place, the fracture position of the water flow is marked and displayed;
the idea is to establish a digital virtual transformer substation by using the existing digital twin technology, three-dimensionally display the 'water flow', and then mark the abnormal position when the 'water flow' is abnormal.
Further, in S2, the specific method of the fault back-deduction is as follows: firstly, classifying fault processing modes; secondly, collecting fault processing modes and establishing a fault processing method database; when faults in similar situations occur, the corresponding fault management method can be directly obtained from the fault processing method database, and the fault processing mode display is carried out.
In this embodiment, in S3, the real-time integration of the multivariate data can be realized by applying edge calculation.
In this embodiment, in S4, the grid situation calculation is that load flow calculation is performed according to a grid load flow calculation formula, i.e., using data formed by the multiple digital network; the power grid load flow calculation formula includes but is not limited to a Newton-Raphson method and a PQ decomposition method.
Further, in S4, the multiple digital network mainly includes three layers, which are: a main frame pattern formed by the electrical device; a connection diagram formed by the primary cable and the secondary cable; the electrical parameters collected by various protective devices form a 'water flow' diagram.
Further, in S4, in the existing grid operation mode, a specific method for performing power flow previewing by combining a plurality of substations includes: firstly, data formed by all transformer substations are collected and stored in a unified mode; then converting each transformer substation into a point in sequence; then, respectively recording the input and output values of each point; and finally, reflecting the trend situation of each point through the fluctuation of the output and input value of each point.
Specifically, when the method is applied to the existing transformer substation for troubleshooting, the implementation steps include the following steps:
1. according to the primary civil engineering basic diagram and the primary and secondary cable diagrams, establishing three-dimensional modeling of the transformer substation to form a main frame diagram;
2. acquiring electrical parameters of the protection equipment, and simulating a current channel;
3. performing primary and secondary linkage to indicate that the acquisition source of the voltage and current parameters is a certain device (name, number or position in three-dimensional modeling);
4. establishing a database (including a basic database, a parameter database, a fault processing method database and the like);
5. importing a communication protocol and carrying out data transmission;
6. forming a virtual transformer substation;
7. when the fault occurs, if the parameter mutation or abnormity occurs, marking the position;
8. and searching the faults with similar situations from the fault database, giving a fault example, and acquiring and displaying a corresponding fault processing mode from the fault processing method database.
As shown in fig. 3, the present embodiment further provides a virtual substation troubleshooting and locating device based on the digital twin technology, which is used for loading the above virtual substation system, three-dimensional fault locating system, and the like, and the device includes a processor, a memory, and a computer program stored in the memory and running on the processor.
The processor comprises one or more than one processing core, the processor is connected with the memory through a bus, the memory is used for storing program instructions, and the steps of the virtual substation troubleshooting and positioning method based on the digital twin technology are realized when the processor executes the program instructions in the memory.
Alternatively, the memory may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
In addition, the invention further provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program is executed by a processor, the steps of the virtual substation troubleshooting and positioning method based on the digital twin technology are realized.
Optionally, the present invention also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the steps of the above aspects of the virtual substation troubleshooting positioning method based on the digital twin technology.
It will be understood by those skilled in the art that the processes for implementing all or part of the steps of the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A virtual transformer substation troubleshooting positioning method based on a digital twin technology is characterized by comprising the following steps: the method comprises the following steps:
s1, constructing a virtual substation system: performing analog simulation on the primary system of the transformer substation by using a digital twinning technology to construct a digital twinning system of the transformer substation; utilizing various collected data to quickly construct multiple engines; forming a high-definition 3D image by using a three-dimensional modeling technology; simulating virtual operation conditions in the transformer substation through a digital modeling technology, a stereo synthesis technology and an interaction technology;
s2, manufacturing a three-dimensional fault positioning system: the method comprises the steps of adopting a multi-device data implementation operation mode to build immediately, and carrying out summary modeling on mass data acquired by each device from primary equipment; integrating a three-dimensional space transformer substation, equipment position information and physical parameter display into a whole by using an edge computing technology; virtual efficient modeling is adopted, intelligent real-time display is carried out, high-performance fault location is carried out, and fault reverse deduction is carried out;
s3, performing data visualization display: the method comprises the steps of instantaneously setting up various types of data, integrating multiple data in real time, responding and integrating the data in real time, and generating a big data platform according to the data collected by a transformer substation gateway; the system supports multi-device interface access and various types of communication protocols, can realize automatic data extraction, performs data storage in a distributed manner, and provides comprehensive visual data support for a virtual substation;
s4, carrying out grid situation estimation: establishing a compound digital network, establishing a future function according to instant data, and calculating and previewing the operation mode of the power grid; in the existing power grid operation mode, a plurality of transformer substations are combined to conduct power flow preview, and auxiliary decision is conducted on the conversion of the power grid operation mode.
2. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: the virtual substation system display framework constructed in the step S1 is as follows: taking the primary civil engineering structure diagram as a reference, using a primary cable as a connecting line, and using a secondary cable for auxiliary connection; wherein, the primary cable is the power cable, and the secondary cable is the alternating current-direct current cable, and the alternating current-direct current separates.
3. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in S2, the specific method for performing fault location by the three-dimensional fault location system is as follows: firstly, parameters of each protection device are summarized in a three-dimensional fault positioning system, wherein the parameters include but are not limited to voltage, current, frequency and the like; and if the parameters are subjected to numerical value mutation or abnormal change, sending a fault signal, and marking and displaying the positions of the protection devices with abnormal parameters in the three-dimensional space transformer substation.
4. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in S2, the specific method of reverse fault deduction is as follows: firstly, classifying fault processing modes; secondly, collecting fault processing modes and establishing a fault processing method database; when faults in similar situations occur, the corresponding fault management method can be directly obtained from the fault processing method database, and the fault processing mode display is carried out.
5. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in S3, the multivariate data integration in real time can be achieved by applying edge calculation.
6. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in the step S4, the power grid situation calculation is that the data formed by the compound digital network is used for carrying out load flow calculation according to a power grid load flow calculation formula; the grid power flow calculation formula includes but is not limited to a Newton-Raphson method and a PQ decomposition method.
7. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in S4, the multiple digital network mainly includes three layers of structures, which are: a main frame pattern formed by the electrical device; a connection diagram formed by the primary cable and the secondary cable; the electrical parameters collected by various protective devices form a 'water flow' diagram.
8. The virtual substation troubleshooting positioning method based on the digital twin technology as claimed in claim 1, characterized in that: in S4, in the existing grid operation mode, a specific method for performing power flow preview by combining multiple substations includes: firstly, uniformly summarizing and storing data formed by all transformer substations; then converting each transformer substation into a point in sequence; then, respectively recording the input and output values of each point; and finally, reflecting the trend situation of each point through the fluctuation of the output and input value of each point.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115932476A (en) * | 2022-12-12 | 2023-04-07 | 触景无限科技（北京）有限公司 | Fault positioning method and device based on digital twinning, electronic equipment and medium |
| CN116596518A (en) * | 2023-07-17 | 2023-08-15 | 南京上古网络科技有限公司 | Digital twinning-based power grid fault hidden danger management system and method |
| CN116593811A (en) * | 2023-07-17 | 2023-08-15 | 南京欧陆电气股份有限公司 | Integrated frequency converter running state monitoring system and monitoring method |
| CN116776650A (en) * | 2023-08-22 | 2023-09-19 | 山东金人电气有限公司 | Running state control system of box-type substation |
-
2022
- 2022-06-24 CN CN202210725656.4A patent/CN115085378A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115932476A (en) * | 2022-12-12 | 2023-04-07 | 触景无限科技（北京）有限公司 | Fault positioning method and device based on digital twinning, electronic equipment and medium |
| CN115932476B (en) * | 2022-12-12 | 2023-08-29 | 触景无限科技（北京）有限公司 | Fault positioning method and device based on digital twin, electronic equipment and medium |
| CN116596518A (en) * | 2023-07-17 | 2023-08-15 | 南京上古网络科技有限公司 | Digital twinning-based power grid fault hidden danger management system and method |
| CN116593811A (en) * | 2023-07-17 | 2023-08-15 | 南京欧陆电气股份有限公司 | Integrated frequency converter running state monitoring system and monitoring method |
| CN116593811B (en) * | 2023-07-17 | 2023-09-15 | 南京欧陆电气股份有限公司 | Integrated frequency converter running state monitoring system and monitoring method |
| CN116596518B (en) * | 2023-07-17 | 2023-09-19 | 南京上古网络科技有限公司 | Digital twinning-based power grid fault hidden danger management system and method |
| CN116776650A (en) * | 2023-08-22 | 2023-09-19 | 山东金人电气有限公司 | Running state control system of box-type substation |
| CN116776650B (en) * | 2023-08-22 | 2023-10-24 | 山东金人电气有限公司 | Running state control system of box-type substation |
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