Anti-misoperation method for grounding operation based on power distribution network multi-source data fusion topology positioning

Abstract

The application discloses a false operation prevention method for grounding operation based on power distribution network multi-source data fusion topology positioning, which is based on power distribution network equipment account and topology relationship, uses multi-source data fusion topology positioning technology, obtains the position and longitude and latitude of equipment involved in power distribution network operation instruction in power grid topology, judges whether the instruction needs grounding line installation or removal operation, if the instruction needs grounding operation, establishes an association between the instruction and an intelligent grounding line device through a mobile terminal, and based on the data acquisition module of the intelligent grounding line device of system construction, quickly and accurately collects the state and longitude and latitude of the grounding line, analyzes the distance between the two in combination with the longitude and latitude of the equipment, judges whether there are false hanging, false removal, missing hanging and missing removal and other phenomena, and when there are false hanging, false removal, missing hanging and missing removal and other phenomena, issues an alarm to power distribution scheduling, and suspends subsequent operation before power distribution scheduling confirms the on-site situation, so that the false operation prevention purpose is achieved.

Description

Technical Field

[0001] The present invention relates to a method for preventing errors in grounding operations based on topological positioning of multi-source data fusion of a distribution network. Background Art

[0002] During the maintenance and troubleshooting of distribution network equipment, grounding wires often need to be frequently installed or removed. Due to the lack of intelligent, automated management and control methods, distribution network dispatchers are unable to intelligently monitor and control the grounding status of on-site equipment. This can easily lead to mis-installation, mis-removal, missed installation, and even serious safety accidents. Therefore, it is necessary to develop a method to prevent grounding errors, allowing distribution network dispatchers to quickly and accurately understand the grounding status of on-site equipment and prevent safety accidents.

[0003] Therefore, the present invention is studied and proposed in view of the above problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a method for preventing grounding operations based on multi-source data fusion topological positioning of distribution network. Based on the distribution network equipment ledger and topological relationship, the multi-source data fusion topological positioning technology is used to obtain the position and longitude and latitude of the equipment involved in the distribution network operation instruction in the power grid topology, and judge whether the instruction requires the installation or removal of the grounding wire. If the instruction requires the grounding operation, an association is established between the instruction and the intelligent grounding wire device through the mobile terminal, and the data acquisition module of the intelligent grounding wire device constructed based on the system is used to quickly and accurately collect the status and longitude and latitude of the grounding wire. Combined with the longitude and latitude of the equipment, the distance between the two is analyzed to judge whether there are phenomena such as wrong hanging, wrong removal, missed hanging, missed removal, etc. When there are phenomena such as wrong hanging, wrong removal, missed hanging, missed removal, etc., an alarm is issued to the distribution network dispatcher, and subsequent operations are suspended before the distribution network dispatcher confirms the on-site situation, thereby achieving the purpose of preventing errors.

[0005] The present invention is achieved through the following technical solutions:

[0006] A method for preventing grounding errors based on topological positioning of multi-source data fusion in distribution networks includes the following steps:

[0007] (1) Obtain a pending and unjudged distribution network operation instruction from the system;

[0008] (2) Obtaining information about the device involved in the network distribution operation instruction from the system, wherein the information about the device includes a unique identifier of the device;

[0009] (3) Obtain relevant information about the device from the distribution network equipment ledger using the unique identifier of the device;

[0010] (4) Using the unique identifier of the device, obtain the location of the device in the power grid topology from the distribution network topology data, and further obtain the device information on the adjacent side of the device through the topology data to determine whether the device has a matching grounding device;

[0011] (5) Based on the operation rules of the distribution network operation instruction, the type of the equipment, and whether the equipment has a matching grounding device, determine whether the distribution network operation instruction requires the installation or removal of the grounding wire. If the distribution network operation instruction does not require a grounding operation, mark the distribution network operation instruction as determined and does not require a grounding operation, and return to step 1 to analyze the next distribution network operation instruction. Otherwise, execute the next step.

[0012] (6) Scan the QR code on the intelligent grounding wire device through a mobile terminal to establish an association between the distribution network operation instruction and the intelligent grounding wire device;

[0013] (7) Through the intelligent grounding wire device data acquisition module built in the system, collect the grounding wire status, longitude and latitude, and unique device identification uploaded by the intelligent grounding wire device;

[0014] (8) Based on the unique identifier of the intelligent grounding wire device and the relationship between the distribution network operation instructions and the intelligent grounding wire device, the longitude and latitude of the device and the longitude and latitude of the grounding wire can be obtained. The distance between the two can be calculated and the location of the device and the grounding wire can be marked on the map;

[0015] (9) When the distance between the two does not exceed the threshold set by the system, proceed to the next step. Otherwise, the system will remind the distribution network dispatch site that there may be an erroneous operation through display or playback. The distribution network dispatch will suspend the subsequent operation of the distribution network operation instruction and actively contact the on-site operation and maintenance personnel to confirm and deal with the problems on the site, so as to achieve the purpose of preventing erroneous operation;

[0016] (10) Continue to execute subsequent network configuration operation instructions until the execution is completed.

[0017] As described above, in the method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network, in step (3), the relevant information of the equipment includes the type of equipment, longitude and latitude, the line to which it belongs, and the information of the station to which it belongs.

[0018] As described above, in the method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network, in step (3), when the longitude and latitude of the device itself is empty, the longitude and latitude of the station building to which the device belongs are used as the longitude and latitude of the device.

[0019] As described above, in the method for preventing errors in grounding operations based on topological positioning of distribution network multi-source data fusion, in step (4), the position of the device in the power grid topology is obtained from the distribution network topology relationship data through the unique identification of the device, and the device information on the left and right sides of the device is further obtained through the topological relationship data to determine whether the device has a matching grounding device.

[0020] As described above, in the method for preventing grounding operations based on topological positioning of multi-source data fusion of distribution network, in step (9), the display or playback method includes voice, pop-up window or text message method.

[0021] As described above, in the method for preventing grounding operations based on topological positioning of multi-source data fusion of distribution network, in step (9), the erroneous operation phenomenon includes the phenomenon of wrong hanging or wrong removal or missed hanging or missed removal.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The present invention is based on the equipment ledger and topological relationship of the distribution network, and uses multi-source data fusion topological positioning technology to obtain the position and longitude and latitude of the equipment involved in the distribution network operation instruction in the power grid topology, and judge whether the instruction requires the installation or removal of the grounding wire. If the instruction requires the grounding operation, an association is established between the instruction and the intelligent grounding wire device through the mobile terminal, and the data acquisition module of the intelligent grounding wire device constructed based on the system is used to quickly and accurately collect the status and longitude and latitude of the grounding wire. Combined with the longitude and latitude of the equipment, the distance between the two is analyzed to judge whether there are phenomena such as wrong hanging, wrong removal, missed hanging, missed removal, etc. When there are phenomena such as wrong hanging, wrong removal, missed hanging, missed removal, etc., an alarm is issued to the distribution network dispatcher, and subsequent operations are suspended before the distribution network dispatcher confirms the on-site situation, thereby achieving the purpose of preventing errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 It is a schematic diagram of the steps of the present invention. DETAILED DESCRIPTION

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, the present invention provides a method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network, comprising the following steps:

[0028] (1) Obtain a pending and unjudged distribution network operation instruction from the system;

[0029] (2) Obtaining information about the device involved in the network distribution operation instruction from the system, wherein the information about the device includes a unique identifier of the device;

[0030] (3) Obtain relevant information about the device from the distribution network equipment ledger using the unique identifier of the device;

[0031] (4) Using the unique identifier of the device, obtain the location of the device in the power grid topology from the distribution network topology data, and further obtain the device information on the adjacent side of the device through the topology data to determine whether the device has a matching grounding device;

[0032] (5) Based on the operation rules of the distribution network operation instruction, the type of the equipment, and whether the equipment has a matching grounding device, determine whether the distribution network operation instruction requires the installation or removal of the grounding wire. If the distribution network operation instruction does not require a grounding operation, mark the distribution network operation instruction as determined and does not require a grounding operation, and return to step 1 to analyze the next distribution network operation instruction. Otherwise, execute the next step.

[0033] (6) Scan the QR code on the intelligent grounding wire device through a mobile terminal to establish an association between the distribution network operation instruction and the intelligent grounding wire device;

[0034] (7) Through the intelligent grounding wire device data acquisition module built in the system, collect the grounding wire status, longitude and latitude, and unique device identification uploaded by the intelligent grounding wire device;

[0035] (8) Based on the unique identifier of the intelligent grounding wire device and the relationship between the distribution network operation instructions and the intelligent grounding wire device, the longitude and latitude of the device and the longitude and latitude of the grounding wire can be obtained. The distance between the two can be calculated and the location of the device and the grounding wire can be marked on the map;

[0036] (9) When the distance between the two does not exceed the threshold set by the system, proceed to the next step. Otherwise, the system will remind the distribution network dispatch site that there may be an erroneous operation through display or playback. The distribution network dispatch will suspend the subsequent operation of the distribution network operation instruction and actively contact the on-site operation and maintenance personnel to confirm and deal with the problems on the site, so as to achieve the purpose of preventing erroneous operation;

[0037] (10) Continue to execute subsequent network configuration operation instructions until the execution is completed.

[0038] The present invention is based on the equipment ledger and topological relationship of the distribution network, and uses multi-source data fusion topological positioning technology to obtain the position and longitude and latitude of the equipment involved in the distribution network operation instruction in the power grid topology, and judge whether the instruction requires the installation or removal of the grounding wire. If the instruction requires the grounding operation, an association is established between the instruction and the intelligent grounding wire device through the mobile terminal, and the intelligent grounding wire device data acquisition module constructed based on the system is used to quickly and accurately collect the status and longitude and latitude of the grounding wire. Combined with the longitude and latitude of the equipment, the distance between the two is analyzed to judge whether there are phenomena such as wrong hanging, wrong removal, missed hanging, missed removal, etc. When wrong hanging, wrong removal, missed hanging, missed removal, etc. occur, an alarm is issued to the distribution network dispatcher, and subsequent operations are suspended before the distribution network dispatcher confirms the on-site situation, thereby achieving the purpose of preventing errors.

[0039] Furthermore, in the step (3), the relevant information of the equipment includes the type of equipment, longitude and latitude, the line to which it belongs, the station building information to which it belongs, etc.

[0040] Furthermore, in the step (3), when the longitude and latitude of the device itself is empty, the longitude and latitude of the station building to which the device belongs are used as the longitude and latitude of the device.

[0041] Furthermore, in step (4), the position of the device in the power grid topology is obtained from the distribution network topology data through the unique identifier of the device, and the device information on the left and right sides of the device is further obtained through the topology relationship data to determine whether the device has a matching grounding device.

[0042] Furthermore, in the step (9), the display or playback method includes voice, pop-up window, text message, etc.

[0043] Furthermore, in the step (9), the misoperation phenomenon includes mishanging or misremoving or missing hanging or missing removing.

[0044] Example:

[0045] Take the distribution network operation instruction "Change the line side of the 110kV Guanghai substation 10kV Guanghai A line 6868 Guanghai A line #01 tower I section 1T1 switch from cold standby to maintenance" as an example for explanation.

[0046] (1) Assume that we obtain the distribution network operation instruction (hereinafter referred to as the instruction) from the system: "Change the line side of the 110kV Guanghai substation 10kV Guanghai A line 6868 Guanghai A line #01 tower I section 1T1 switch from cold standby to maintenance."

[0047] (2) We obtain information (including the unique identifier of the device) of the device involved in the instruction (hereinafter referred to as the device) from the system.

[0048] Description: The information of this command is as follows.

[0049] Unique instruction identifier: 44126345.

[0050] Instruction content: Change the line side of 110kV Guanghai substation 10kV Guanghai A line 6868 Guanghai A line #01 tower I section 1T1 switch from cold standby to maintenance.

[0051] Unique identifier of the device involved in the instruction: SWITCH_400000000000001.

[0052] Operation rules of the instruction: cold standby to maintenance.

[0053] (3) Using the unique identifier of the device, obtain the type, longitude and latitude of the device, the line to which it belongs, and the station to which it belongs from the distribution network equipment ledger. If the longitude and latitude of the device itself is empty, the longitude and latitude of the station to which the device belongs will be used as the longitude and latitude of the device. The distribution network equipment ledger shall contain at least the following:

[0054] Note: The device itself has longitude and latitude and can be used directly.

[0055] Unique identifier of the device: SWITCH_400000000000001.

[0056] Type of equipment: Pole mounted circuit breaker.

[0057] The latitude and longitude of the device: 116.7777777, 23.4444444.

[0058] The line to which the equipment belongs: 10kV Guanghai Line A 6868.

[0059] Station building where the equipment belongs: empty.

[0060] The latitude and longitude of the station building to which the equipment belongs: empty.

[0061] (4) Through the unique identification of the device, the location of the device in the power grid topology is obtained from the distribution network topology relationship data, and the device information on the left and right sides of the device is further obtained through the topology relationship data to determine whether the device has a matching grounding device.

[0062] Note: The first step is to obtain the device's location in the power grid topology through the device's unique identifier. This location has two connection points.

[0063] Unique identifier of the device: SWITCH_400000000000001.

[0064] Device connection point 1 in the grid topology: NODE_400000000004600.

[0065] Device connection point 2 in the grid topology: NODE_400000000004700.

[0066] Note: In the second step, obtain the devices associated with the connection point NODE_400000000004600. In addition to the device SWITCH_400000000000001 itself, the other associated device is SWITCH_400000000000002.

[0067] Connection point: NODE_400000000004600.

[0068] Unique identifier of device 1 associated with connection point NODE_400000000004600: SWITCH_400000000000001.

[0069] Unique identifier of device 2 associated with connection point NODE_400000000004600: SWITCH_400000000000002.

[0070] Note: In the third step, obtain the ledger information of the associated device SWITCH_4000000000000002. The associated device SWITCH_400000000000002 is an isolating switch on a distribution column, not a grounding device. This type of device does not have a matching grounding device, so it is no longer traced through the topological relationship.

[0071] Unique device identifier: SWITCH_400000000000002.

[0072] Type of equipment: Pole-mounted disconnect switch.

[0073] Note: In the fourth step, obtain the devices associated with the connection point NODE_400000000004700. In addition to the device SWITCH_400000000000001 itself, the other associated device is SWITCH_400000000000003.

[0074] Connection point: NODE_400000000004700.

[0075] Unique identifier of device 1 associated with connection point NODE_400000000004700: SWITCH_400000000000003.

[0076] Unique identifier of device 2 associated with connection point NODE_400000000004700: SWITCH_400000000000001.

[0077] Note: In the fifth step, obtain the ledger information of the associated device SWITCH_4000000000000003. The associated device SWITCH_400000000000003 is an isolating switch on a distribution column, not a grounding device. This type of device does not have a matching grounding device, so it is no longer traced through the topological relationship.

[0078] Unique identifier of the device: SWITCH_400000000000003.

[0079] Type of equipment: Pole-mounted disconnect switch.

[0080] (5) Based on the operation rules of the instruction, the type of equipment, whether the equipment has a matching grounding device and other information, determine whether the instruction requires the installation or removal of the grounding wire. If the instruction does not require a grounding operation, mark the instruction as determined and does not require a grounding operation, and return to step 1 to analyze the next distribution network operation instruction. Otherwise, execute the next step.

[0081] Note: The operating rule of this instruction is to switch from cold standby to maintenance. There is a possibility of installing a grounding wire. Continue analysis.

[0082] Operation rules of the instruction: cold standby to maintenance.

[0083] Note: The device is a circuit breaker on a distribution pole, and there is a possibility of using a grounding wire. Continue analysis.

[0084] Unique identifier of the device: SWITCH_400000000000001.

[0085] Type of equipment: Pole mounted circuit breaker.

[0086] Note: The left and right sides of the device are both disconnect switches on the distribution poles, and there is no matching grounding device. It is ultimately determined that this instruction requires the installation of a grounding wire, and the analysis is complete.

[0087] Unique device identifier: SWITCH_400000000000002.

[0088] Type of equipment: Pole-mounted disconnect switch.

[0089] Unique identifier of the device: SWITCH_400000000000003.

[0090] Type of equipment: Pole-mounted disconnect switch.

[0091] (6) Scan the QR code on the smart grounding wire device (corresponding to the unique device identifier in the information uploaded by the device) through a mobile terminal to establish an association between the instruction and the smart grounding wire device.

[0092] Note: The established association relationship includes the unique identifier of the instruction and the unique identifier of the intelligent grounding wire device.

[0093] Unique instruction identifier: 44126345.

[0094] Unique identifier of the intelligent grounding wire device: C_0000001.

[0095] (7) The data acquisition module of the intelligent grounding wire device constructed in the system is used to collect the grounding wire status, longitude and latitude, and unique device identification uploaded by the intelligent grounding wire device.

[0096] Note: The data uploaded by different intelligent grounding wire devices will eventually be collected into the intelligent grounding wire device data acquisition module.

[0097] Note: The data uploaded by the intelligent grounding wire device C_0000001 is as follows.

[0098] Unique identifier of the intelligent grounding wire device: C_0000001.

[0099] Ground wire status: connected.

[0100] Grounding line latitude and longitude: 116.7776888, 23.4443433.

[0101] Note: The data uploaded by the intelligent grounding wire device C_0000002 is as follows.

[0102] Unique identifier of the intelligent grounding wire device: C_0000002.

[0103] Ground wire status: All are not connected.

[0104] Grounding line latitude and longitude: 116.1111111, 23.2222222.

[0105] Note: The data uploaded by the intelligent grounding wire device C_0000003 is as follows.

[0106] Unique identifier of the intelligent grounding wire device: C_0000003.

[0107] Ground wire status: partially connected.

[0108] Grounding line latitude and longitude: 116.3333333, 23.4444444.

[0109] Note: The data uploaded by the intelligent grounding wire device C_0000004 is as follows.

[0110] Unique identifier of the intelligent grounding wire device: C_0000004.

[0111] Ground wire status: All are not connected.

[0112] Grounding line latitude and longitude: 116.2222222, 23.5555555.

[0113] (8) Based on the unique identification of the intelligent grounding wire device and the relationship between the instruction and the intelligent grounding wire device, the longitude and latitude of the device and the longitude and latitude of the grounding wire can be obtained. The distance between the two can be calculated and the location of the device and the grounding wire can be marked on the map.

[0114] Note: After integrating data such as distribution network operation instructions, the records of equipment involved in the distribution network operation instructions, data uploaded by the intelligent grounding wire device, and the relationship between the distribution network operation instructions and the intelligent grounding wire device, the following information can be obtained:

[0115] Unique instruction identifier: 44126345.

[0116] Unique identifier of the intelligent grounding wire device: C_0000001.

[0117] Unique identifier of the device: SWITCH_400000000000001.

[0118] The latitude and longitude of the device: 116.7777777, 23.4444444.

[0119] Ground wire status: connected.

[0120] Grounding line latitude and longitude: 116.7776888, 23.4443433.

[0121] Note: R in the formula is the radius of the Earth, which is a fixed value of 6378.137 km.

[0122] Note: The value in the formula is the value after the longitude of the device, 116.7777777, is converted into radians.

[0123] Note: The value in the formula is the longitude of the ground line 116.7776888 converted into radians.

[0124] Note: The value in the formula is the value after the device's latitude 23.4444444 is converted into radians.

[0125] Note: The value in the formula is the latitude of the ground line 23.4443433 converted into radians.

[0126] Description: Distance calculation formula , it can be calculated that the distance S between the equipment and the grounding wire is approximately 14.4 meters.

[0127] (9) When the distance between the two does not exceed the threshold set by the system, proceed to the next step. Otherwise, the system will remind the distribution network dispatch site through voice, pop-up window, SMS, etc. that there may be wrong hanging, wrong removal, missed hanging, missed removal, etc. The distribution network dispatch will suspend the subsequent operation of the instruction and actively contact the on-site operation and maintenance personnel to confirm and deal with the problems on the site, so as to achieve the purpose of preventing operation errors.

[0128] Note: The distance between the device and the ground wire is approximately 14.4 meters, which exceeds the system threshold (10 meters). The system determines that there may be a misconnection on site and notifies the distribution network dispatcher, who then confirms and handles the issue with the on-site operation and maintenance personnel.

[0129] (10) Continue to execute subsequent network configuration operation instructions until the execution is completed.

Claims

1. A method for preventing grounding errors based on topological positioning of multi-source data fusion in distribution networks, characterized by The steps include: (1) Obtain a pending and unjudged distribution network operation instruction from the system; (2) Obtaining information about the device involved in the network distribution operation instruction from the system, wherein the information about the device includes a unique identifier of the device; (3) Obtain relevant information about the device from the distribution network equipment ledger using the unique identifier of the device; (4) Using the unique identifier of the device, obtain the location of the device in the power grid topology from the distribution network topology data, and further obtain the device information on the adjacent side of the device through the topology data to determine whether the device has a matching grounding device; (5) Based on the operation rules of the distribution network operation instruction, the type of the equipment, and whether the equipment has a matching grounding device, determine whether the distribution network operation instruction requires the installation or removal of the grounding wire. If the distribution network operation instruction does not require a grounding operation, mark the distribution network operation instruction as determined and does not require a grounding operation, and return to step 1 to analyze the next distribution network operation instruction. Otherwise, execute the next step. (6) Scan the QR code on the intelligent grounding wire device through a mobile terminal to establish an association between the distribution network operation instruction and the intelligent grounding wire device; (7) Through the intelligent grounding wire device data acquisition module built in the system, collect the grounding wire status, longitude and latitude, and unique device identification uploaded by the intelligent grounding wire device; (8) Based on the unique identifier of the intelligent grounding wire device and the relationship between the distribution network operation instructions and the intelligent grounding wire device, the longitude and latitude of the device and the longitude and latitude of the grounding wire can be obtained. The distance between the two can be calculated and the location of the device and the grounding wire can be marked on the map; (9) When the distance between the two does not exceed the threshold set by the system, proceed to the next step. Otherwise, the system will remind the distribution network dispatch site that there may be an erroneous operation through display or playback. The distribution network dispatch will suspend the subsequent operation of the distribution network operation instruction and actively contact the on-site operation and maintenance personnel to confirm and deal with the problems on the site, so as to achieve the purpose of preventing erroneous operation; (10) Continue to execute subsequent network configuration operation instructions until the execution is completed.

2. The method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network according to claim 1 is characterized in that In the step (3), the relevant information of the equipment includes the type of equipment, longitude and latitude, the line to which it belongs, and the station information to which it belongs.

3. The method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network according to claim 2 is characterized in that In the step (3), when the longitude and latitude of the device itself is empty, the longitude and latitude of the station building to which the device belongs are used as the longitude and latitude of the device.

4. The method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network according to claim 1 is characterized in that In the step (4), the position of the device in the power grid topology is obtained from the distribution network topology data through the unique identifier of the device, and the device information on the left and right sides of the device is further obtained through the topology data to determine whether the device has a matching grounding device.

5. The method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network according to claim 1 is characterized in that In the step (9), the display or playback method includes voice, pop-up window or text message.

6. The method for preventing grounding errors based on topological positioning of multi-source data fusion of distribution network according to claim 1 is characterized in that In the step (9), the misoperation phenomenon includes mishanging or misremoving or missing hanging or missing removing.

Images