Relay protection monitoring system

Abstract

The invention relates to a relay protection monitoring system, which comprises a data acquisition device, a data processing server and a data publishing server, and is characterized in that the data acquisition device is in communication connection with the data processing server, acquires information data of a relay protection device, and sends the information data to the data processing server; the data processing server processes the information data to obtain device data and operation data of the relay protection device, performs anomaly analysis on the operation data and generates alarm information according to an analysis result, and the data issuing server is in communication connection with the data processing server, obtains the device data and the alarm information from the data processing server and issues the alarm information to the relay protection device. And generating a monitoring page and an alarm instruction according to the device data and the alarm information. According to the relay protection data monitoring system and method, the problem of low relay protection data monitoring efficiency is solved, data acquisition, analysis and alarm are performed on the relay protection device through the data acquisition device, the data processing server and the data publishing server, and the relay protection data monitoring efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of relay protection, and in particular to a relay protection monitoring method, system, electronic device and storage medium. Background Art

[0002] Relay protection is an important measure to detect faults or abnormal conditions in the power system, thereby issuing an alarm signal or directly isolating and removing the faulty part.

[0003] In related technologies, it is rather troublesome for workers to obtain information on relay protection. They usually check the data of protection equipment by on-site inspection or reading the setting sheet. After obtaining the data, they still need to manually screen, compare, analyze and archive it, resulting in very low work efficiency.

[0004] Currently, no effective solution has been proposed to address the problem of low efficiency of relay protection data monitoring in related technologies. Summary of the invention

[0005] The embodiments of the present application provide a relay protection monitoring method, system, electronic device and storage medium to at least solve the problem of low efficiency of relay protection data monitoring in the related art.

[0006] In a first aspect, an embodiment of the present application provides a relay protection monitoring system, the system comprising: a data acquisition device, a data processing server and a data publishing server, wherein:

[0007] The data acquisition device is in communication connection with the data processing server and the relay protection device, and is used to obtain information data of the relay protection device and send the information data to the data processing server;

[0008] The data processing server is used to process the information data, obtain the device data and operation data of the relay protection device, perform abnormal analysis on the operation data, and generate alarm information according to the analysis results;

[0009] The data publishing server is communicatively connected to the data processing server, and is used to obtain the device data and the alarm information from the data processing server, and generate a monitoring page and an alarm instruction according to the device data and the alarm information.

[0010] In some embodiments, the data processing server includes: an over-limit alarm module and a sudden change alarm module, wherein:

[0011] The over-limit alarm module is used to determine whether each of the operating data is greater than a preset alarm threshold, and if so, generate an over-limit alarm message;

[0012] The mutation alarm module is used to determine whether each of the operating data has a mutation, and if so, generate mutation alarm information.

[0013] In some embodiments, the operation data includes historical differential current data; the over-limit alarm module includes: a current data extraction module, a trend graph generation module and a prediction module, wherein:

[0014] A current data extraction module, used to obtain a differential current waveform and a differential current value when the differential current is greater than a preset upper limit threshold from the historical differential current data;

[0015] A trend graph generating module, used for generating a differential current trend graph according to the differential current waveform and the differential current value;

[0016] The prediction module is used to predict the time when the next differential current exceeds the preset upper limit threshold based on the differential current trend diagram, and generate differential current exceeding upper limit alarm information based on the time exceeding upper limit.

[0017] In some embodiments, the over-limit alarm module further includes: an abnormality classification module,

[0018] The abnormal classification module is used to count the number of times the differential current in the historical differential current data is greater than the preset upper limit threshold when the currently predicted differential current is greater than the preset upper limit threshold time, and determine the alarm level based on the number of times the differential current is greater than the preset upper limit threshold.

[0019] In some embodiments, the device data includes device statistical data and the equipment status of the relay protection device; the data processing server includes: a data statistics module and a device status analysis module, wherein:

[0020] The data statistics module is used to perform statistical analysis on the device operation data in the information data based on a preset period to obtain the device statistical data, wherein the device statistical data includes the number of message items, the number of startups, and the number of executed operations;

[0021] The device status analysis module is used to determine the device status of the relay protection device according to the device operation data in the information data, and the device status includes an online state, an offline state and an alarm state.

[0022] In some embodiments, the operation data includes the bay protection current and the branch current corresponding to the bus differential protection; the data processing server includes: a homology consistency analysis module,

[0023] The homologous consistency analysis module is used to determine whether the interval protection current is consistent with the branch current corresponding to the bus differential protection, and if not, generate homologous inconsistency alarm information.

[0024] In some embodiments, the operation data includes circuit data corresponding to the protection access of the relay protection device, and the same relay protection device corresponds to at least two protection accesses; the data processing server includes: a protection access consistency analysis module,

[0025] The protection access consistency analysis module is used to compare the circuit data of each protection access corresponding to the same relay protection device, determine whether the circuit data of each protection access is consistent, and if not, generate protection access inconsistency alarm information.

[0026] In some embodiments, the operation data includes the protection main function pressure plate launch and retreat status; the data processing server includes: launch and retreat status analysis module,

[0027] The throw-in / out status analysis module is used to determine whether the throw-in / out status of the protection main function pressure plate is consistent with the throw-in / out status of the preset protection set value pressure plate. If not, an throw-in / out status inconsistency alarm message is generated.

[0028] In some embodiments, the system further comprises: a protection engineer station,

[0029] The protection engineer station is communicatively connected to the data publishing server, and is used to obtain the monitoring page and the alarm instruction from the data publishing server, display the monitoring page, and execute the alarm instruction.

[0030] In some embodiments, the data processing server includes: a frequent alarm analysis module,

[0031] The frequent alarm analysis module is used to count the number of alarms of the relay protection device within a preset time period, and generate frequent alarm information based on the number of alarms when the number of alarms is greater than a preset alarm threshold.

[0032] Compared with the related art, the relay protection monitoring system provided by the embodiment of the present application includes: a data acquisition device, a data processing server and a data publishing server. The data acquisition device is communicatively connected to the data processing server, and is used to obtain information data of the relay protection device, and send the information data to the data processing server. The data processing server is used to process the information data, obtain device data and operation data of the relay protection device, perform abnormal analysis on the operation data, and generate alarm information according to the analysis results. The data publishing server is communicatively connected to the data processing server, and is used to obtain device data and alarm information from the data processing server, and generate monitoring pages and alarm instructions according to the device data and alarm information, thereby solving the problem of low efficiency of relay protection data monitoring. The data acquisition device, the data processing server and the data publishing server are used to collect, analyze and alarm the relay protection device, thereby improving the efficiency of relay protection data monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 is a structural block diagram of a relay protection monitoring system according to an embodiment of the present application;

[0035] Figure 2 It is a structural diagram of a relay protection monitoring system according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0037] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0038] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0039] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0040] This embodiment provides a relay protection monitoring system, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the terms "module", "unit", "subunit", etc. can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0041] Figure 1 is a structural block diagram of a relay protection monitoring system according to an embodiment of the present application, such as Figure 1 As shown, the system includes: a data acquisition device 11, a data processing server 12 and a data publishing server 13.

[0042] The data acquisition device 11 is connected to the data processing server 12 and the relay protection device for communication, and is used to obtain information data of the relay protection device and send the information data to the data processing server 12 .

[0043] The data acquisition device 11 periodically acquires information data of the relay protection device. In this embodiment, the information data includes but is not limited to the current setting zone number, the current zone setting value, the soft pressure plate, and the input quantity.

[0044] It should be noted that the starting time point, inspection cycle and substations to be inspected of automatic inspection support dynamic settings; during the inspection execution, it supports cancellation of ongoing automatic inspection operations so that users can perform other emergency operations; it supports manual batch summoning according to selected devices and functions; and it supports viewing historical inspection results in batches.

[0045] The data processing server 12 is used to process the information data, obtain the device data and operation data of the relay protection device, perform abnormal analysis on the operation data, and generate alarm information according to the analysis results.

[0046] The data processing server 12 screens, compares, analyzes and archives the information data based on preset standard values.

[0047] The data publishing server 13 is in communication connection with the data processing server 12, and is used for obtaining device data and alarm information from the data processing server 12, and generating monitoring pages and alarm instructions according to the device data and alarm information.

[0048] The data publishing server generates a monitoring page based on the device data and alarm information. The monitoring page can be a web page. Optionally, an inspection report is generated to record the results of automatic inspections and manual inspections. The report includes but is not limited to the details of the equipment inspection, the comparison of the inspection value with the standard value, and important reminders of abnormal conditions. The system also provides a report management function, and users can view, export and archive inspection reports.

[0049] In some of these embodiments, the system further includes: a protection engineer station.

[0050] The protection engineer station is connected to the data publishing server for communication and is used to obtain monitoring pages and alarm instructions from the data publishing server, display the monitoring page, and execute the alarm instructions.

[0051] The protection engineer station displays the corresponding monitoring page and executes the alarm command. Users can click to enter the visual real-time monitoring interface of each power plant for manual inspection. The interface provides real-time data and status information for remote monitoring. It supports viewing historical inspection results by batch, time, operator, equipment model, and equipment name to help users analyze and trace data.

[0052] The protection engineer station can also conduct statistics and display on the overall status of the current operation and access of the system, including the current overall access plant and station status, access equipment status and operation status of each manufacturer's substation; statistical reports on the communication status and availability of each region, plant and station; statistical reports on the communication status and availability of each region, plant and station and their equipment; statistical reports on the collection of power grid faults; statistical reports on professional inspections and other reports.

[0053] The system also provides data analysis and reporting functions to collect statistics and analyze inspection results. It supports data visualization to help users find problems, analyze trends, and make operation and maintenance decisions. Figure 2 This is a structural diagram of a relay protection monitoring system according to an embodiment of the present application.

[0054] In some embodiments, the data processing server 12 includes: an over-limit alarm module and a sudden change alarm module, wherein:

[0055] The over-limit alarm module is used to determine whether each operating data is greater than a preset alarm threshold. If so, an over-limit alarm message is generated.

[0056] The mutation alarm module is used to determine whether the operation data has mutated. If so, it generates mutation alarm information.

[0057] Fault warnings are provided for analog quantity exceeding limits, changing trends, and mutation monitoring. Warning values ​​and data collection cycles can be set in real time, and the data collected each time can be saved. Historical data can be queried and graphically displayed by time period.

[0058] In some of the embodiments, the operation data includes historical differential current data; the upper limit crossing alarm module includes: a current data extraction module, a trend chart generation module and a prediction module.

[0059] The current data extraction module is used to obtain the differential current waveform and the differential current value when the differential current is greater than a preset upper limit threshold from the historical differential current data.

[0060] The trend diagram generating module is used to generate a differential current trend diagram according to the differential current waveform and the differential current value.

[0061] The prediction module is used to predict the time when the next differential current exceeds a preset upper limit threshold based on the differential current trend diagram, and generate differential current exceeding upper limit alarm information based on the time exceeding upper limit.

[0062] The waveform and current value are obtained each time the differential current exceeds the upper limit. If the current value is greater than the preset upper limit threshold, an alarm message is generated. At the same time, a differential current trend graph is drawn based on these waveforms and values, and an early warning is issued based on the trend graph to predict the time when the differential current upper limit may appear.

[0063] In some of the embodiments, the over-limit alarm module further includes: an abnormality classification module.

[0064] The abnormal classification module is used to count the number of times the differential current is greater than the preset upper limit threshold in the historical differential current data when the current predicted differential current is greater than the preset upper limit threshold time, and determine the alarm level based on the number of times the differential current is greater than the preset upper limit threshold.

[0065] For example, if the number of times the differential current in the historical differential current data is greater than the preset upper limit threshold is less than or equal to 3 times, it is a level 1 alarm; if the number of times the differential current in the historical differential current data is greater than the preset upper limit threshold is greater than 3 times, it is a level 2 alarm. The alarm method of the level 1 alarm can be to display the alarm information on the monitoring display page through a striking color mark, and the alarm method of the level 2 alarm can be a color mark display plus a buzzer alarm.

[0066] In some of the embodiments, the device data includes device statistical data and equipment status of the relay protection device; the data processing server includes: a data statistics module and a device status analysis module.

[0067] The data statistics module is used to perform statistical analysis on the device operation data in the information data based on a preset period to obtain device statistical data, which includes the number of message items, the number of startups and the number of operations performed.

[0068] Automatically count the action information of the relay protection device, including but not limited to the number of action information items, the number of starts and the number of actions.

[0069] The device status analysis module is used to determine the device status of the relay protection device according to the device operation data in the information data. The device status includes online status, offline status and alarm status.

[0070] The system provides real-time monitoring of equipment status, displaying the equipment's operating status and real-time data. You can view the status of each device, such as online / offline, and alarm status, through a visual interface or dashboard.

[0071] In some of the embodiments, the operating data includes the interval protection current and the branch current corresponding to the bus differential protection; the data processing server includes: a homology consistency analysis module.

[0072] The homologous consistency analysis module is used to determine whether the interval protection current and the branch current corresponding to the bus differential protection are consistent. If not, a homologous inconsistency alarm message is generated.

[0073] Compare the consistency of each interval protection current with the corresponding branch current of the bus differential protection, and alarm if there is inconsistency.

[0074] In some embodiments, the operation data includes circuit data of the protection access corresponding to the relay protection device, and the same relay protection device corresponds to at least two protection accesses; the data processing server includes: a protection access consistency analysis module.

[0075] The protection access consistency analysis module is used to compare the circuit data of each protection access corresponding to the same relay protection device to determine whether the circuit data of each protection access is consistent. If not, a protection access inconsistency alarm message is generated.

[0076] The same main device often has multiple protection connections, such as main protection and line protection. Compare the voltage and current data corresponding to different protection connections under the same device, and alarm if they are inconsistent.

[0077] In some of the embodiments, the operating data includes the activation and deactivation status of the protection main function pressure plate; the data processing server includes: an activation and deactivation status analysis module.

[0078] The throw-in / out status analysis module is used to determine whether the throw-in / out status of the protection main function pressure plate is consistent with the throw-in / out status of the preset protection set value pressure plate. If not, an throw-in / out status inconsistency alarm message is generated.

[0079] In this embodiment, the primary and secondary equipment models of the system and their associated relationships are combined to obtain the protection pressure plate status, real-time information and working status through the data acquisition device, so as to realize online diagnosis of the protection operation status and timely warning. The diagnosis content includes: diagnosis and warning of the consistency of the operation status of the associated equipment (such as protection and merging units, intelligent terminals); intelligent diagnosis and warning of the protection main function pressure plate throw and retreat status combined with the operation mode of the primary equipment; monitoring of sudden changes in the protection working status (temperature, voltage and light intensity), operation trend analysis and warning.

[0080] In some embodiments, the data processing server includes: a frequent alarm analysis module,

[0081] The frequent alarm analysis module is used to count the number of alarms of the relay protection device within a preset time period, and generate frequent alarm information based on the number of alarms when the number of alarms is greater than a preset alarm threshold.

[0082] Provide early warning for abnormal situations such as frequent alarms, startup and position change information from equipment in a short period of time.

[0083] Through the above relay protection monitoring system, the data acquisition device 11 is connected in communication with the data processing server 12 to obtain the information data of the relay protection device and send the information data to the data processing server 12. The data processing server 12 processes the information data to obtain the device data and operation data of the relay protection device, performs abnormal analysis on the operation data, and generates alarm information according to the analysis results. The data publishing server 13 is connected in communication with the data processing server 12 to obtain the device data and alarm information from the data processing server 12, and generates a monitoring page and an alarm instruction according to the device data and the alarm information, thereby solving the problem of low efficiency of relay protection data monitoring. The data acquisition device, the data processing server and the data publishing server collect data, analyze and alarm the relay protection device, thereby improving the efficiency of relay protection data monitoring.

[0084] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0085] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A relay protection monitoring system, characterized in that: The system includes: a data acquisition device, a data processing server and a data publishing server, wherein: The data acquisition device is in communication connection with the data processing server and the relay protection device, and is used to obtain information data of the relay protection device and send the information data to the data processing server; The data processing server is used to process the information data, obtain the device data and operation data of the relay protection device, perform abnormal analysis on the operation data, and generate alarm information according to the analysis results; The data publishing server is communicatively connected to the data processing server, and is used to obtain the device data and the alarm information from the data processing server, and generate a monitoring page and an alarm instruction according to the device data and the alarm information.

2. The system according to claim 1, characterized in that The data processing server includes: an over-limit alarm module and a sudden change alarm module, wherein: The over-limit alarm module is used to determine whether each of the operating data is greater than a preset alarm threshold, and if so, generate an over-limit alarm message; The mutation alarm module is used to determine whether each of the operating data has a mutation, and if so, generate mutation alarm information.

3. The system according to claim 2, characterized in that The operation data includes historical differential current data; the over-limit alarm module includes: a current data extraction module, a trend graph generation module and a prediction module, wherein: A current data extraction module, used to obtain a differential current waveform and a differential current value when the differential current is greater than a preset upper limit threshold from the historical differential current data; A trend graph generating module, used for generating a differential current trend graph according to the differential current waveform and the differential current value; The prediction module is used to predict the time when the next differential current exceeds the preset upper limit threshold based on the differential current trend diagram, and generate differential current exceeding upper limit alarm information based on the time exceeding upper limit.

4. The system according to claim 3, characterized in that The over-limit alarm module also includes: an abnormal classification module, The abnormal classification module is used to count the number of times the differential current in the historical differential current data is greater than the preset upper limit threshold when the currently predicted differential current is greater than the preset upper limit threshold time, and determine the alarm level based on the number of times the differential current is greater than the preset upper limit threshold.

5. The system according to claim 1, characterized in that The device data includes device statistical data and the equipment status of the relay protection device; the data processing server includes: a data statistics module and a device status analysis module, wherein: The data statistics module is used to perform statistical analysis on the device operation data in the information data based on a preset period to obtain the device statistical data, wherein the device statistical data includes the number of message items, the number of startups, and the number of executed operations; The device status analysis module is used to determine the device status of the relay protection device according to the device operation data in the information data, and the device status includes an online state, an offline state and an alarm state.

6. The system according to claim 1, characterized in that The operation data includes the interval protection current and the branch current corresponding to the bus differential protection; the data processing server includes: a homology consistency analysis module, The homologous consistency analysis module is used to determine whether the interval protection current is consistent with the branch current corresponding to the bus differential protection, and if not, generate homologous inconsistency alarm information.

7. The system according to claim 1, characterized in that The operation data includes circuit data corresponding to the protection access of the relay protection device, and the same relay protection device corresponds to at least two protection accesses; The data processing server comprises: a protection access consistency analysis module, The protection access consistency analysis module is used to compare the circuit data of each protection access corresponding to the same relay protection device, determine whether the circuit data of each protection access is consistent, and if not, generate protection access inconsistency alarm information.

8. The system according to claim 1, characterized in that The operation data includes the protection main function pressure plate in-and-out status; the data processing server includes: an in-and-out status analysis module, The throw-in / out status analysis module is used to determine whether the throw-in / out status of the protection main function pressure plate is consistent with the throw-in / out status of the preset protection set value pressure plate. If not, an throw-in / out status inconsistency alarm message is generated.

9. The system according to claim 1, characterized in that The system also includes: a protection engineer station, The protection engineer station is remotely connected to the data publishing server for communication, and is used to obtain the monitoring page and the alarm instruction from the data publishing server, display the monitoring page, and execute the alarm instruction.

10. The system according to claim 1, characterized in that The data processing server comprises: a frequent alarm analysis module, The frequent alarm analysis module is used to count the number of alarms of the relay protection device within a preset time period, and generate frequent alarm information based on the number of alarms when the number of alarms is greater than a preset alarm threshold.

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