A substation monitoring information acceptance fault diagnosis method and system

Abstract

This invention discloses a method and system for fault diagnosis of substation monitoring information acceptance, comprising: obtaining actual trigger signals from on-site commissioning personnel and querying the point number and Chinese description of the signal in the monitoring information table; forming full-link configuration information of the actual trigger signals on-site using the point number, SCD file, RCD file, and monitoring information table; performing a first self-check on the RCD file, SCD file, and monitoring information table based on the Chinese description of the signal; receiving a 104 message output by the automatic acceptance device and obtaining the point number and timestamp of the monitoring information based on the 104 message; finding the corresponding information in the MMS message and GOOSE message based on the point number and timestamp to form a monitoring information transmission stream; performing a second self-check on the Chinese description of each link in the monitoring information transmission stream; and comparing the monitoring information transmission stream with the full-link configuration information to find the fault point. This invention has a high fault location accuracy.

Description

Technical Field

[0001] This invention relates to the field of substation monitoring information acceptance technology, specifically to a method and system for diagnosing substation monitoring information acceptance faults. Background Technology

[0002] When conducting acceptance testing of substation monitoring information, the testing personnel receive and verify the information forwarded by the remote control system through an automatic acceptance device. If the information received by the automatic acceptance device is inconsistent with the actual trigger signal on site, the commissioning personnel must work with the equipment manufacturer to find the cause of the problem. This involves searching and analyzing multiple circuits, multiple channels, multiple types of equipment, and multiple files. The commissioning personnel need to have certain professional knowledge and experience in protection and automation, and the efficiency is greatly affected by human factors.

[0003] Currently, to improve the efficiency of substation monitoring information acceptance, automatic acceptance devices have been gradually applied. However, during the substation monitoring information acceptance process, if the received information is inconsistent with the actual signals triggered on site, the fault is still mainly found manually, and the efficiency is greatly affected by human factors.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] The technical problem to be solved by this invention is that during the acceptance of substation monitoring information, if there is a problem with information transmission, the efficiency of fault finding is greatly affected by human factors, resulting in low fault location efficiency and low accuracy.

[0006] The purpose of this invention is to provide a method and system for diagnosing substation monitoring information acceptance faults. It automatically finds faults by checking the configuration of actual trigger signals and comparing the configuration information of actual trigger signals with the transmission stream of monitoring information. This helps commissioning personnel and equipment manufacturers to quickly locate fault points. The efficiency of problem finding is less affected by human factors, and the accuracy of fault location is high.

[0007] This invention is achieved through the following technical solution:

[0008] In a first aspect, the present invention provides a method for diagnosing faults in the acceptance of substation monitoring information, the method comprising:

[0009] Obtain the actual trigger signal from the on-site commissioning personnel, and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table;

[0010] By using the point number, SCD file, RCD file, and monitoring information table, the full-link configuration information of the actual trigger signal on site is formed;

[0011] Based on the Chinese description of the actual triggered signals on site, the SCD file, RCD file, and monitoring information table were self-checked for the first time to confirm whether the configuration information in the SCD file and RCD file was correct.

[0012] The automatic acceptance device receives the first message output by the remote control system, and obtains the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; the Chinese description corresponding to the point number is queried in the monitoring information table, and the information content sent by the remote control system is composed of the point number, time stamp and Chinese description;

[0013] Based on the point number and time stamp, find the corresponding information in the MMS message and GOOSE message (the source device is a process layer device, so there is a GOOSE message; otherwise, there is no such message) to form a monitoring information transmission stream;

[0014] The Chinese descriptions of each link in the monitoring information transmission flow are checked a second time to identify fault points;

[0015] By comparing the monitoring information transmission stream with the full-link configuration information, the fault point can be identified.

[0016] Furthermore, the monitoring information table is a summary table of information collected by substations connected to the dispatching / centralized control system;

[0017] The SCD file is a substation configuration description file;

[0018] RCD files are remote control configuration description files;

[0019] The automatic acceptance device is a dedicated device for automatically accepting the connection of substation monitoring information to the smart grid control / centralized control system.

[0020] Furthermore, by using the point numbers, SCD files, RCD files, and monitoring information tables, the full-link configuration information of the actual trigger signals on site is generated, including:

[0021] Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system;

[0022] Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the bay layer device model corresponding to the IEC61850 path name in the SCD file (if the source device is a process layer device); the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file;

[0023] If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file.

[0024] Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

[0025] Furthermore, based on the Chinese descriptions of the actual trigger signals on site, a first self-check was performed on the SCD file, RCD file, and monitoring information table to confirm the correctness of the configuration information in the SCD and RCD files, including:

[0026] Based on the Chinese description of the actual trigger signal on site, the Chinese descriptions of the interval layer devices in the RCD file, the SCD file, and the process layer devices in the SCD file are compared. If the Chinese descriptions are consistent, the configuration is correct; otherwise, an abnormal configuration is indicated.

[0027] Furthermore, based on the point number and timestamp, the corresponding information in the MMS and GOOSE messages is identified to form a monitoring information transmission stream, including:

[0028] Based on the time stamp of the signal obtained by the automatic acceptance device, the corresponding MMS message is found and its Chinese description is parsed and used as the information content sent by the interval layer device.

[0029] Based on the time stamp of the signal obtained by the automatic acceptance device, find the corresponding GOOSE message and the previous GOOSE message. The signal with inconsistent status in the two GOOSE messages is the signal actually triggered on site. Parse and obtain its Chinese description, and use the Chinese description as the information content sent by the process layer device.

[0030] The information content emitted by the remote control, interval layer equipment, and process layer equipment together form the monitoring information transmission stream of the actual trigger signal on site;

[0031] Specifically, the automatic acceptance device acquires GOOSE messages from process layer devices and MMS messages from interval layer devices.

[0032] Furthermore, a second self-check was performed on the Chinese descriptions of each stage of the monitoring information transmission flow to identify potential faults, including:

[0033] The Chinese descriptions of each link in the monitoring information transmission flow are compared: if they match, it means that the information is consistent from the source device to the automatic acceptance device, and the anomaly originates from the secondary loop at the front end of the source device, and the diagnosis ends; if they do not match, the following judgment process is performed: if the information sent by the current device is inconsistent with the information sent by the previous device, it means that there is an anomaly in the secondary loop between the two. According to this logic, all abnormal secondary loops are found; then, the next step of inspection is performed.

[0034] Furthermore, the monitoring information transmission stream is compared with the full-link configuration information to determine the equipment configuration or front-end loop abnormality of the link with inconsistent information closest to the source device, and this is taken as the fault point.

[0035] Furthermore, the method for anomaly detection is as follows:

[0036] The first scenario: When the Chinese description of the same signal is consistent in all stages, the Chinese description in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream is compared with the Chinese description in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal.

[0037] The second scenario: When the actual Chinese descriptions of the same signal are inconsistent in different stages, the Chinese descriptions in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream are compared with the Chinese descriptions in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal or the equipment configuration of that stage is abnormal.

[0038] It should be noted that the Chinese description of the same signal may differ across devices, but this method is not affected by this situation. In this case, after establishing the information transmission stream and end-to-end configuration information, the consistency comparison of the Chinese descriptions within the end-to-end configuration information and the information transmission stream is no longer performed; instead, the information transmission stream is directly compared with the end-to-end configuration information, which is the second scenario.

[0039] Secondly, the present invention provides a substation monitoring information acceptance fault diagnosis system, which uses the aforementioned substation monitoring information acceptance fault diagnosis method; the system includes:

[0040] The first inspection module includes a first query unit, a full-link configuration information formation unit, and a first self-verification unit;

[0041] The first query unit is used to obtain the actual trigger signal from the field commissioning personnel and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table;

[0042] The end-to-end configuration information generation unit is used to generate end-to-end configuration information of actual trigger signals on site using point numbers, SCD files, RCD files, and monitoring information tables.

[0043] The first self-verification unit is used to perform the first self-verification of the SCD file, RCD file, and monitoring information table based on the Chinese description of the actual trigger signal on site, to confirm whether the configuration information in the SCD file and RCD file is correct;

[0044] The second inspection module includes a second query unit, a monitoring information transmission stream forming unit, and a second self-checking unit;

[0045] The second query unit is used to receive the first message output by the automatic acceptance device, and to obtain the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; and to query the Chinese description corresponding to the point number in the monitoring information table, and the information content sent by the remote control is composed of the point number, time stamp and Chinese description.

[0046] The monitoring information transmission stream forming unit is used to find the corresponding information in the MMS message and GOOSE message (the source device is a process layer device and has GOOSE message; otherwise, there is no such message) according to the point number and time stamp, and form the monitoring information transmission stream.

[0047] The second self-verification unit is used to perform a second self-verification of the Chinese descriptions of each link in the monitoring information transmission flow to identify fault points;

[0048] The third inspection module is used to compare the monitoring information transmission stream with the full-link configuration information to find the fault point.

[0049] Furthermore, the execution process of the end-to-end configuration information formation unit is as follows:

[0050] Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system;

[0051] Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the bay layer device model corresponding to the IEC61850 path name in the SCD file (if the source device is a process layer device); the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file;

[0052] If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file.

[0053] Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

[0054] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0055] This invention discloses a method and system for diagnosing substation monitoring information acceptance faults. It automatically locates faults through three aspects: checking the configuration of actual trigger signals, self-verifying the monitoring information flow, and comparing the configuration information of actual trigger signals with the monitoring information transmission flow. It can detect errors such as configuration misalignment (SCD configuration, remote control configuration) and secondary circuit wiring misalignment, significantly reducing the workload of commissioning personnel and improving fault location efficiency, with minimal impact from human factors. This method can be used not only for fault location when problems occur during substation-level simulated master station acceptance of monitoring information, but also for fault location when problems occur during master station acceptance of monitoring information. Even when the Chinese description of the same signal differs in different devices, this method remains effective for fault diagnosis, demonstrating strong applicability. Attached Figure Description

[0056] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0057] Figure 1 This is a flowchart of a substation monitoring information acceptance fault diagnosis method according to the present invention;

[0058] Figure 2 This is a connection diagram of the automatic acceptance device of the present invention with the remote control, station control layer switch and process layer switch;

[0059] Figure 3 This is a schematic diagram of the end-to-end configuration information for Embodiment 2 of the present invention;

[0060] Figure 4 This is a schematic diagram of the end-to-end configuration information in Embodiment 3 of the present invention;

[0061] Figure 5 This is a schematic diagram of the monitoring information transmission flow in Embodiment 3 of the present invention;

[0062] Figure 6 This is a structural block diagram of a substation monitoring information acceptance fault diagnosis system according to the present invention. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0064] During the acceptance process of substation monitoring information, if problems occur in information transmission, the efficiency of fault finding is greatly affected by human factors, resulting in low fault location efficiency and low accuracy.

[0065] Therefore, this invention designs a method and system for diagnosing substation monitoring information acceptance faults. This method identifies faults from three aspects:

[0066] 1. Obtain the actual trigger signals from the field commissioning personnel, and look up their corresponding point numbers and Chinese descriptions in the monitoring information table. Using the point numbers, SCD files, RCD files, and the monitoring information table, form the full-link configuration information of the signal under investigation. Then, verify the SCD files, RCD files, monitoring information tables, and other configuration files based on the signal's Chinese description. This can help identify configuration problems in the SCD and RCD files.

[0067] 2. The automatic acceptance device receives the 104 message output by the remote control, obtains the point number and timestamp of the monitoring information, finds the corresponding information in the MMS message and GOOSE message based on the point number, timestamp, SCD file and RCD file, forms the monitoring information transmission stream, performs self-verification on the Chinese description of each link of the monitoring information transmission stream, and troubleshoots the fault points.

[0068] 3. Compare the information transmission stream with the full-link configuration information to identify the fault point.

[0069] The key technical points are as follows:

[0070] The automatic acceptance testing device connects to the remote control output port to receive 104 messages and obtain the point number and timestamp of the monitoring information. The automatic acceptance testing device connects to the station control layer switch to receive MMS messages. The automatic acceptance testing device connects to the process layer switch to receive GOOSE messages. The connections between the automatic acceptance testing device and the remote control, station control layer switch, and process layer switch are as follows: Figure 2 As shown.

[0071] Import the monitoring information table, SCD file, and RCD file into the automatic acceptance device.

[0072] The automatic acceptance testing device receives a 104 message from the remote control unit (RCD), parses the message to obtain the point number and timestamp, and searches for the corresponding Chinese description in the monitoring information table based on the point number. It then obtains the Chinese description of the actually triggered signal from the field commissioning personnel. When the signal received by the automatic acceptance testing device is inconsistent with the actual triggered signal, it queries the monitoring information table for the point number and Chinese description of the actual triggered signal. Finally, it inputs the point number and Chinese description of the actual triggered signal after the signal received by the automatic acceptance testing device, and initiates the fault diagnosis procedure.

[0073] Example 1

[0074] like Figure 1 As shown, the present invention provides a method for diagnosing substation monitoring information acceptance faults, the method comprising:

[0075] Obtain the actual trigger signal from the on-site commissioning personnel, and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table;

[0076] By using the point number, SCD file, RCD file, and monitoring information table, the full-link configuration information of the actual trigger signal on site is formed;

[0077] Based on the Chinese description of the actual triggered signals on site, the SCD file, RCD file, and monitoring information table were self-checked for the first time to confirm whether the configuration information in the SCD file and RCD file was correct.

[0078] The automatic acceptance device receives the first message output by the remote control system, and obtains the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; the Chinese description corresponding to the point number is queried in the monitoring information table, and the information content sent by the remote control system is composed of the point number, time stamp and Chinese description;

[0079] Based on the point number and time stamp, find the corresponding information in the MMS message and GOOSE message (the source device is a process layer device, so there is a GOOSE message; otherwise, there is no such message) to form a monitoring information transmission stream;

[0080] The Chinese descriptions of each link in the monitoring information transmission flow are checked a second time to identify fault points;

[0081] By comparing the monitoring information transmission stream with the full-link configuration information, the fault point can be identified.

[0082] As a further implementation, the monitoring information table is a summary table of information collected by substations connected to the control / centralized control system;

[0083] The SCD file is a substation configuration description file;

[0084] RCD files are remote control configuration description files;

[0085] The automatic acceptance device is a dedicated device for automatically accepting the connection of substation monitoring information to the smart grid control / centralized control system.

[0086] As a further implementation, the full-link configuration information of the actual trigger signals on site is formed through point numbers, SCD files, RCD files, and monitoring information tables, including:

[0087] Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system;

[0088] Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the bay layer device model corresponding to the IEC61850 path name in the SCD file (if the source device is a process layer device); the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file;

[0089] If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file.

[0090] Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

[0091] As a further implementation, and based on the Chinese description of the actual trigger signals on site, a first self-check was performed on the SCD file, RCD file, and monitoring information table to confirm the correctness of the configuration information in the SCD and RCD files, including:

[0092] Based on the Chinese description of the actual trigger signal on site, the Chinese descriptions of the interval layer devices in the RCD file, the SCD file, and the process layer devices in the SCD file are compared. If the Chinese descriptions are consistent, the configuration is correct; otherwise, an abnormal configuration is indicated.

[0093] As a further implementation, based on the aforementioned point number and timestamp, the corresponding information in the MMS and GOOSE messages is identified to form a monitoring information transmission stream, including:

[0094] Based on the time stamp of the signal obtained by the automatic acceptance device, the corresponding MMS message is found and its Chinese description is parsed and used as the information content sent by the interval layer device.

[0095] Based on the time stamp of the signal obtained by the automatic acceptance device, find the corresponding GOOSE message and the previous GOOSE message. The signal with inconsistent status in the two GOOSE messages is the signal actually triggered on site. Parse and obtain its Chinese description, and use the Chinese description as the information content sent by the process layer device.

[0096] The information content emitted by the remote control, interval layer equipment, and process layer equipment together form the monitoring information transmission stream of the actual trigger signal on site;

[0097] Specifically, the automatic acceptance device acquires GOOSE messages from process layer devices and MMS messages from interval layer devices.

[0098] As a further step, a second self-check was performed on the Chinese descriptions of each stage of the monitoring information transmission flow to identify potential faults, including:

[0099] The Chinese descriptions of each link in the monitoring information transmission flow are compared: if they match, it means that the information is consistent from the source device to the automatic acceptance device, and the anomaly originates from the secondary loop at the front end of the source device, and the diagnosis ends; if they do not match, the following judgment process is performed: if the information sent by the current device is inconsistent with the information sent by the previous device, it means that there is an anomaly in the secondary loop between the two. According to this logic, all abnormal secondary loops are found; then, the next step of inspection is performed.

[0100] As a further implementation, the monitoring information transmission stream is compared with the full-link configuration information to determine the equipment configuration or front-end loop abnormality of the link with inconsistent information closest to the source device, and this is taken as the fault point.

[0101] As a further implementation, the method for anomaly detection is as follows:

[0102] The first scenario: When the Chinese description of the same signal is consistent in all stages, the Chinese description in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream is compared with the Chinese description in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal.

[0103] The second scenario: When the actual Chinese descriptions of the same signal are inconsistent in different stages, the Chinese descriptions in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream are compared with the Chinese descriptions in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal or the equipment configuration of that stage is abnormal.

[0104] It should be noted that the Chinese description of the same signal may differ across devices, but this method is not affected by this situation. In this case, after establishing the information transmission stream and end-to-end configuration information, the consistency comparison of the Chinese descriptions within the end-to-end configuration information and the information transmission stream is no longer performed; instead, the information transmission stream is directly compared with the end-to-end configuration information, which is the second scenario.

[0105] The substation monitoring information acceptance fault location method proposed in this invention automatically finds faults through three aspects: configuration check of actual trigger signals, self-verification of monitoring information flow, and comparison of configuration information of actual trigger signals with monitoring information transmission flow. It can detect errors such as configuration misalignment (SCD configuration, remote control configuration) and secondary circuit wiring misalignment, which greatly reduces the workload of commissioning personnel, improves fault location efficiency, and the efficiency is less affected by human factors.

[0106] This invention's method can be used not only for fault location when problems occur during the acceptance and monitoring of information at the substation's simulated master station, but also for fault location when problems occur during the master station's acceptance and monitoring of information. Even when the Chinese descriptions of the same signal differ across different devices, this method remains effective for fault diagnosis, demonstrating its strong applicability.

[0107] Example 2

[0108] like Figure 3 As shown, the difference between this embodiment and Embodiment 1 lies in the misalignment of the association between "5011 First Set of Intelligent Terminal Maintenance Status Engaged" and "50111 Isolator Position" in the 5011 circuit breaker monitoring and control device, as an example: In the configuration of the 5011 circuit breaker monitoring and control device, "5011 First Set of Intelligent Terminal Maintenance Status Engaged" issued by the 5011 First Set of Intelligent Terminal is associated with "50111 Isolator Position" in the 5011 circuit breaker monitoring and control, and "50111 Isolator Position" issued by the 5011 First Set of Intelligent Terminal is associated with "5011 First Set of Intelligent Terminal Maintenance Status Engaged" in the 5011 circuit breaker monitoring and control. In the monitoring information table and RCD file, point 30 is "50111 Isolator Position", and point 60 is "5011 First Set of Intelligent Terminal Maintenance Status Engaged".

[0109] When the commissioning personnel close the maintenance pressure plate at the first set of intelligent terminals of 5011, the first set of intelligent terminals of 5011 sends a GOOSE message containing "5011 first set of intelligent terminals in maintenance status". This message enters the 5011 circuit breaker monitoring and control device through the process layer switch. Then, the 5011 circuit breaker monitoring and control device sends an MMS message containing "50111 disconnector position" through the station control layer switch to the remote control unit. The remote control unit forwards the 104 message and enters the automatic acceptance device. The 104 message is parsed to obtain the point number "30" and its timestamp "10:11:22.303". The automatic acceptance device highlights point 30 and its corresponding Chinese description "50111 disconnector position" in the monitoring information table. The acceptance personnel obtained the actual signal triggered on site from the commissioning personnel as "5011 First set of intelligent terminal maintenance status activated". They found that the received signal was inconsistent with the actual signal triggered on site. They entered the point number "60" of the actual signal triggered on site and the Chinese description "5011 First set of intelligent terminal maintenance status activated" after the 30th signal and started fault diagnosis.

[0110] Establish the full-link configuration information for the 60th signal actually triggered on-site, such as... Figure 2 As shown.

[0111] (1) The point number of the signal actually triggered on site is “60”. Find the Chinese description and IEC61850 path name of the signal with point number “60” in the RCD file exported from the telecontrol center. The point number, Chinese description and IEC61850 path name constitute the configuration information of the signal in the telecontrol center.

[0112] (2) Based on the IEC61850 path name found in the first step, find the corresponding Chinese description and internal short address in the SCD-5011 circuit breaker measurement and control device model. The Chinese description and internal short address are the configuration information of the signal in SCD.

[0113] (3) Based on the internal short address of the signal in the SCD-5011 circuit breaker measurement and control device model found in the SCD in the second step, find the corresponding Chinese description in the first set of intelligent terminal models of SCD-5011. The Chinese description is the configuration information of the signal in the SCD.

[0114] (4) By comparing the Chinese descriptions of each link in the full-link configuration information of the signal, it was found that the Chinese description of the signal in the first set of smart terminal models of 5011 was inconsistent with the Chinese descriptions of other links in the configuration information.

[0115] During the configuration check step, the fault point was found, prompting a check of the configuration of the first set of smart terminals (5011) in the SCD.

[0116] Example 3

[0117] like Figure 4 and Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that, taking the hard-wired connection of the "5011 First Set of Smart Terminal Maintenance Status In" and "50111 Partition Position" signals to the misaligned 5011 First Set of Smart Terminal as an example: the hard-wired connection of the "5011 First Set of Smart Terminal Maintenance Status In" signal should be connected to terminal 33 of the 5011 First Set of Smart Terminal, but it is mistakenly connected to terminal 3 of the 5011 First Set of Smart Terminal; the hard-wired connection of the "50111 Partition Position" signal should be connected to terminal 3 of the 5011 First Set of Smart Terminal, but it is mistakenly connected to terminal 33 of the 5011 First Set of Smart Terminal. In the monitoring information table and RCD file, point 30 is "50111 Partition Position" and point 60 is "5011 First Set of Smart Terminal Maintenance Status In".

[0118] When the commissioning personnel close the maintenance pressure plate at the first set of intelligent terminals of 5011, the first set of intelligent terminals of 5011 sends a GOOSE message containing "50111 Isolator Position". This message enters the 5011 circuit breaker monitoring and control device through the process layer switch. Then, the 5011 circuit breaker monitoring and control device sends an MMS message containing "50111 Isolator Position" through the station control layer switch to the remote control unit. The remote control unit forwards the 104 message and enters the automatic acceptance device. The 104 message is parsed to obtain the point number "30" and its timestamp "10:11:22.303". The automatic acceptance device highlights point 30 and its corresponding Chinese description "50111 Isolator Position" in the monitoring information table. The acceptance personnel obtained the actual signal triggered on site from the commissioning personnel as "5011 First set of intelligent terminal maintenance status activated". They found that the received signal was inconsistent with the actual signal triggered on site. They entered the point number "60" of the actual signal triggered on site and the Chinese description "5011 First set of intelligent terminal maintenance status activated" after the 30th signal and started fault diagnosis.

[0119] First, establish end-to-end configuration information, such as... Figure 3 As shown.

[0120] (1) The point number of the signal actually triggered on site is “60”. Find the Chinese description and IEC61850 path name of the signal with point number “60” in the RCD file exported from the telecontrol center. The point number, Chinese description and IEC61850 path name constitute the configuration information of the signal in the telecontrol center.

[0121] (2) Based on the IEC61850 path name found in the first step, find the corresponding Chinese description and internal short address in the SCD-5011 circuit breaker measurement and control device model. The Chinese description and internal short address are the configuration information of the signal in SCD.

[0122] (3) Based on the internal short address of the signal in the SCD-5011 circuit breaker measurement and control device model found in the SCD in the second step, find the corresponding Chinese description in the first set of intelligent terminal models of SCD-5011. The Chinese description is the configuration information of the signal in the SCD.

[0123] (4) Compare the Chinese descriptions of each link in the full-link configuration information of the signal. If the Chinese descriptions of each link in the configuration information are consistent, proceed to the next step.

[0124] Then, establish an information transmission flow, such as Figure 4 As shown.

[0125] (1) The automatic acceptance device receives the 104 message output by the remote control, parses the 104 message to obtain the signal point number "30" and the time stamp "10:11:22.303", which corresponds to the Chinese description "50111 cutter position" in the monitoring information table, and obtains the IEC61850 path name of the signal with point number "30" in the RCD file.

[0126] (2) The automatic acceptance device receives the MMS message from the station control layer switch, and finds the corresponding MMS message and parses it to obtain its Chinese description based on the timestamp "10:11:22.303" and IEC61850 path name obtained in the first step.

[0127] (3) The automatic acceptance device receives the GOOSE message from the process layer switch. Based on the IEC61850 path name obtained in the first step, it finds the corresponding process layer device in the SCD. Based on the timestamp "10:11:22.303" and the process layer device information, it finds the corresponding GOOSE message and the previous frame GOOSE message. It compares the two frames of GOOSE messages and obtains the Chinese description of the signal with inconsistent status.

[0128] The Chinese descriptions of each stage of the information transmission flow are compared. If the Chinese descriptions of each stage of the information transmission flow are consistent, it means that the information is transmitted normally from the first set of smart terminals of 5011 to the automatic acceptance device.

[0129] The configuration information of the entire link is compared with the information transmission stream. The configuration information of the first set of smart terminals of the source device 5011 is inconsistent with the sent information, indicating that the front-end loop of the first set of smart terminals of 5011 is abnormal.

[0130] Example 4

[0131] like Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that this embodiment provides a substation monitoring information acceptance fault diagnosis system, which uses a substation monitoring information acceptance fault diagnosis method from Embodiment 1; the system includes:

[0132] The first inspection module includes a first query unit, a full-link configuration information formation unit, and a first self-verification unit;

[0133] The first query unit is used to obtain the actual trigger signal from the field commissioning personnel and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table;

[0134] The end-to-end configuration information generation unit is used to generate end-to-end configuration information of actual trigger signals on site using point numbers, SCD files, RCD files, and monitoring information tables.

[0135] The first self-verification unit is used to perform the first self-verification of the SCD file, RCD file, and monitoring information table based on the Chinese description of the actual trigger signal on site, to confirm whether the configuration information in the SCD file and RCD file is correct;

[0136] The second inspection module includes a second query unit, a monitoring information transmission stream forming unit, and a second self-checking unit;

[0137] The second query unit is used to receive the first message output by the automatic acceptance device, and to obtain the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; and to query the Chinese description corresponding to the point number in the monitoring information table, and the information content sent by the remote control is composed of the point number, time stamp and Chinese description.

[0138] The monitoring information transmission stream forming unit is used to find the corresponding information in the MMS message and GOOSE message (the source device is a process layer device and has GOOSE message; otherwise, there is no such message) according to the point number and time stamp, and form the monitoring information transmission stream.

[0139] The second self-verification unit is used to perform a second self-verification of the Chinese descriptions of each link in the monitoring information transmission flow to identify fault points;

[0140] The third inspection module is used to compare the monitoring information transmission stream with the full-link configuration information to find the fault point.

[0141] As a further implementation, the execution process of the end-to-end configuration information formation unit is as follows:

[0142] Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system;

[0143] Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the bay layer device model corresponding to the IEC61850 path name in the SCD file (if the source device is a process layer device); the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file;

[0144] If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file.

[0145] Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

[0146] The execution process of each unit can be carried out according to the steps of the substation monitoring information acceptance fault diagnosis method in Embodiment 1, and will not be described in detail in this embodiment.

[0147] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0148] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0149] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0150] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0151] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A substation monitoring information acceptance fault diagnosis method, characterized by, The method includes: Obtain the actual trigger signal from the field commissioning personnel, and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table; The point number, along with the SCD file, RCD file, and monitoring information table, forms the full-link configuration information for the actual on-site triggered signal. Based on the Chinese description of the actual on-site trigger signal, the RCD file, SCD file, and monitoring information table are self-checked for the first time to confirm whether the configuration information in the SCD file and RCD file is correct. The automatic acceptance device receives the first message output by the remote control system, and obtains the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; the Chinese description corresponding to the point number is queried in the monitoring information table, and the information content sent by the remote control system is composed of the point number, time stamp and Chinese description; Based on the point number and time stamp, find the corresponding information in the MMS message and GOOSE message to form a monitoring information transmission stream; The Chinese descriptions of each link in the monitoring information transmission stream are then self-checked a second time to identify fault points. The monitoring information transmission stream is compared with the end-to-end configuration information to identify the fault point.

2. The method of claim 1, wherein, The monitoring information table is a summary table of information collected by substations connected to the control / centralized control system. The SCD file is a substation configuration description file; The RCD file is a telemetry configuration description file; The automatic acceptance device is a dedicated automatic acceptance device for substation monitoring information to be connected to the smart grid control / centralized control system.

3. The method of claim 1, wherein, Using the aforementioned point numbers, along with the SCD file, RCD file, and monitoring information table, the full-link configuration information for the actual on-site triggered signals is generated, including: Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system; Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the corresponding bay layer device model in the SCD file; the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file; If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file. Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

4. The method of claim 1, wherein, Based on the Chinese description of the actual on-site trigger signals, a first self-check was performed on the SCD file, RCD file, and monitoring information table to confirm the correctness of the configuration information in the SCD and RCD files, including: Based on the Chinese description of the actual trigger signal on site, the Chinese descriptions of the interval layer devices in the RCD file, the SCD file, and the process layer devices in the SCD file are compared. If the Chinese descriptions are consistent, the configuration is correct; otherwise, an abnormal configuration is indicated.

5. The method of claim 1, wherein, Based on the point number and timestamp, find the corresponding information in the MMS and GOOSE messages to form a monitoring information transmission stream, including: Based on the time stamp of the signal obtained by the automatic acceptance device, the corresponding MMS message is found and its Chinese description is parsed and used as the information content sent by the interval layer device. Based on the time stamp of the signal obtained by the automatic acceptance device, find the corresponding GOOSE message and the previous GOOSE message. The signal with inconsistent status in the two GOOSE messages is the signal actually triggered on site. Parse and obtain its Chinese description, and use the Chinese description as the information content sent by the process layer device. The information content emitted by the remote control, interval layer equipment, and process layer equipment together form the monitoring information transmission stream of the actual trigger signal on site; Specifically, the automatic acceptance device acquires GOOSE messages from process layer devices and MMS messages from interval layer devices.

6. The method of claim 1, wherein, The Chinese descriptions of each stage of the monitoring information transmission stream are then self-checked a second time to identify potential faults, including: The Chinese descriptions of each link in the monitoring information transmission flow are compared: if they match, it means that the information is consistent from the source device to the automatic acceptance device, and the anomaly originates from the secondary loop at the front end of the source device, and the diagnosis ends; if they do not match, the following judgment process is performed: if the information sent by the current device is inconsistent with the information sent by the previous device, it means that there is an anomaly in the secondary loop between the two. According to the logic of the inconsistency judgment process, all abnormal secondary loops are found; then, the next step of inspection is performed.

7. The method of claim 1, wherein, The monitoring information transmission stream is compared with the full-link configuration information to determine the device configuration or front-end loop abnormality of the link with the most inconsistent information closest to the source device, and this is taken as the fault point.

8. The method of claim 7, wherein, The method for anomaly detection is as follows: The first scenario: When the Chinese description of the same signal is consistent in all stages, the Chinese description in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream is compared with the Chinese description in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal. The second scenario: When the actual Chinese descriptions of the same signal are inconsistent in different stages, the Chinese descriptions in the information content sent by the process layer equipment, the interval layer equipment, and the remote control in the monitoring information transmission stream are compared with the Chinese descriptions in the configuration information of the signal in the process layer equipment model, the interval layer equipment model, and the remote control. The first stage where the Chinese description is inconsistent is identified, which indicates that the secondary loop between that stage and the previous normal stage is abnormal or the equipment configuration of that stage is abnormal.

9. A substation monitoring information acceptance fault diagnostic system characterized by, The system uses a substation monitoring information acceptance fault diagnosis method as described in any one of claims 1 to 8; the system includes: The first inspection module includes a first query unit, a full-link configuration information formation unit, and a first self-verification unit; The first query unit is used to obtain the actual trigger signal from the field commissioning personnel and query the point number and Chinese description of the actual trigger signal in the monitoring information table; the point number and Chinese description constitute the configuration information of the actual trigger signal in the monitoring information table; The end-to-end configuration information forming unit is used to form the end-to-end configuration information of the actual trigger signal on site using the point number, SCD file, RCD file, and monitoring information table. The first self-verification unit is used to perform the first self-verification of the SCD file, RCD file, and monitoring information table based on the Chinese description of the actual trigger signal on site, and to confirm whether the configuration information in the SCD file and RCD file is correct. The second inspection module includes a second query unit, a monitoring information transmission stream forming unit, and a second self-checking unit; The second query unit is used to receive the first message output by the automatic acceptance device, and to obtain the point number and time stamp of the monitoring information by parsing the first message; the first message refers to the 104 message; and to query the Chinese description corresponding to the point number in the monitoring information table, and the information content sent by the remote control is composed of the point number, time stamp and Chinese description. The monitoring information transmission stream forming unit is used to find the corresponding information in the MMS message and GOOSE message according to the point number and time stamp, and form a monitoring information transmission stream. The second self-verification unit is used to perform a second self-verification of the Chinese descriptions of each link in the monitoring information transmission stream to identify fault points; The third inspection module is used to compare the monitoring information transmission stream with the full-link configuration information to find the fault point.

10. The substation monitoring information acceptance fault diagnostic system according to claim 9, characterized by, The execution process of the end-to-end configuration information forming unit is as follows: Based on the point number of the actual trigger signal on site, look up the corresponding Chinese description and IEC61850 path name in the RCD file; the point number, Chinese description, and IEC61850 path name constitute the configuration information of the actual trigger signal on site in the telemetry system; Based on the IEC61850 path name, find the Chinese description and internal short address of the signal in the corresponding bay layer device model in the SCD file; the Chinese description and internal short address constitute the configuration information of the actual field trigger signal in the corresponding bay layer device model in the SCD file; If the source device is a bay layer device, the search ends; if the source device is a process layer device, in the SCD file, based on the internal short address of the signal in the corresponding bay layer device model, the Chinese description of the corresponding signal in the process layer device model corresponding to the bay layer device signal is searched. The Chinese description is the configuration information of the actual field trigger signal in the corresponding process layer device model in the SCD file. Through the above process, the full-link configuration information of the actual trigger signal on site is generated.

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