Monitoring method and device for centralized control system of transformer substation

Abstract

The invention provides a monitoring method and device for a transformer substation centralized control system, and belongs to the technical field of power system automation, and the method comprises the steps: obtaining a preset monitoring demand, marking key guarantee equipment, generating an important scene list and an important guarantee equipment list, and monitoring the equipment based on scene dimensions and equipment dimensions, thereby improving the monitoring precision of the transformer substation centralized control system. And the patrol system is linked to trigger a patrol task, alarm window information is generated according to a patrol result, and information corresponding to different scenes or equipment types is displayed in an alarm interface. According to the invention, through multi-dimensional monitoring and intelligent linkage, efficient and accurate monitoring and alarm management of key guarantee equipment are realized, and the operation reliability and safety of the transformer substation are improved.

Description

Technical Field

[0001] The present application relates to the technical field of power system automation, and particularly to a monitoring method and device for a substation centralized control system. Background Art

[0002] In the operation of modern substations, the safety and stability of the power system are of crucial importance. With the deepening promotion of the new operation management mode of "unattended + centralized monitoring" for substations, higher requirements are put forward for the monitoring of the operating conditions and health levels of equipment. However, there are a wide variety of substation equipment and a large number of signals, making it difficult for monitoring personnel to comprehensively and timely grasp the operating conditions of key equipment. Especially in important scenarios (such as power supply guarantee for major events, bad weather, etc.), this problem is particularly prominent. The traditional monitoring method adopts overall monitoring and cannot conduct differential monitoring for specific scenarios (such as power supply guarantee tasks, bad weather, etc.), resulting in the difficulty in grasping the overall picture of equipment operation in emergency scenarios and restricting the improvement of the safety production level and power supply guarantee ability. Summary of the Invention

[0003] The present application provides a monitoring method and device for a substation centralized control system, aiming to solve the problems of difficult information monitoring and incomplete information in important scenarios such as power supply guarantee for major events and bad weather in the prior art. By realizing the centralized monitoring of equipment in important scenarios, the state control of equipment in special scenarios and the power supply guarantee ability are improved.

[0004] In a first aspect, the present application provides a monitoring method for a substation centralized control system, including:

[0005] Obtaining a preset monitoring requirement, where the monitoring requirement includes one or more of the time range of the scenario, the type of the scenario, and the key guaranteed equipment;

[0006] According to the monitoring requirement, marking the key guaranteed equipment and obtaining abnormal equipment information; and generating an important scenario list and a key guaranteed equipment list based on the monitoring requirement and the abnormal equipment information;

[0007] Monitoring the key guaranteed equipment based on the scenario dimension and the equipment dimension; and linking a preset inspection system to trigger an inspection task for the key guaranteed equipment;

[0008] Based on the result of the inspection task, generating alarm window information according to the monitoring and displaying information corresponding to different scenarios or equipment types in the alarm interface.

[0009] In a second aspect, the present application further provides a monitoring device for a substation centralized control system, including:

[0010] A requirement analysis module for obtaining preset monitoring requirements, where the monitoring requirements include one or more of a time range of a scenario, a type of the scenario, and key protected devices;

[0011] A label generation module for labeling the key protected devices according to the monitoring requirements and obtaining abnormal device information; and generating a list of important scenarios and a list of key protected devices based on the monitoring requirements and the abnormal device information;

[0012] A monitoring and inspection module for monitoring the key protected devices based on a scenario dimension and a device dimension; and linking a preset inspection system to trigger an inspection task for the key protected devices;

[0013] An alarm display module for generating alarm window information based on the results of the inspection task according to the monitoring and displaying information corresponding to different scenarios or device types on an alarm interface.

[0014] The monitoring method and device for a substation centralized control system provided by this application solve the problems of difficult information monitoring and incomplete information in important scenarios such as power supply guarantee for major events and bad weather in the prior art. Specifically, the method first obtains preset monitoring requirements, including the time range, type, and key protected devices of a scenario; secondly, labels the key protected devices according to the monitoring requirements, obtains abnormal device information, and generates a list of important scenarios and a list of key protected devices; then, centrally monitors the key protected devices based on the scenario dimension and the device dimension, and links the inspection system to trigger an inspection task; finally, generates alarm window information based on the results of the inspection task and displays information corresponding to different scenarios or device types on an alarm interface. Through the above method, this application realizes the centralized monitoring of devices in important scenarios, effectively improving the control ability of device status and power supply guarantee ability in special scenarios.

[0015] Therefore, this application obtains preset monitoring requirements, labels key protected devices and generates a list of important scenarios and a list of devices, conducts centralized monitoring based on the scenario dimension and the device dimension, links the inspection system to trigger an inspection task, and finally generates alarm information and displays it on an alarm interface. This method has the following advantages: it can effectively solve the problems of difficult information monitoring and incomplete information in important scenarios such as power supply guarantee for major events and bad weather, realize the centralized monitoring of devices in important scenarios, and improve the control ability of device status and power supply guarantee ability in special scenarios. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the conventional solutions, the following will briefly introduce the drawings required for the description of the embodiments or the conventional solutions. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a flowchart of the monitoring method for the substation centralized control system of the present application;

[0018] Figure 2 is a schematic diagram of the monitoring system for the substation centralized control system of the embodiments of the present application;

[0019] Figure 3 is a schematic diagram of the device list import unit of the embodiments of the present application;

[0020] Figure 4 is a schematic diagram of the scenario list of the embodiments of the present application;

[0021] Figure 5 is a schematic diagram of the scenario dimension monitoring screen of the embodiments of the present application;

[0022] Figure 6 is a schematic diagram of the device dimension monitoring screen of the embodiments of the present application;

[0023] Figure 7 is a structural block diagram of the monitoring device for the substation centralized control system of the present application. Detailed implementation manners

[0024] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0026] In view of the problems of difficult information monitoring and incomplete information existing in the prior art in important scenarios such as power supply guarantee for major events and bad weather, a monitoring method and device for a substation centralized control system are proposed. The traditional monitoring method is to adopt overall monitoring, which cannot perform differential monitoring for specific scenarios (such as power supply guarantee for major events, bad weather, etc.), resulting in difficulty in grasping the overall operation of equipment in emergency scenarios and restricting the improvement of safety production level and power supply guarantee ability.

[0027] The following will specifically describe this application Figures 1 to 7 in conjunction with the attached drawings.

[0028] Please refer to Figure 1 , Figure 1 which is a flowchart of the monitoring method for the substation centralized control system of this application. A monitoring method for a substation centralized control system includes:

[0029] S110, obtaining a preset monitoring requirement, where the monitoring requirement includes one or more of a time range of a scenario, a type of the scenario, and key guarantee equipment.

[0030] Specifically, obtaining a preset monitoring requirement includes one or more of a time range of a scenario (such as during the power supply guarantee for a major event), a type of the scenario (such as bad weather, major event, etc.), and equipment that needs to be key-guaranteed (such as main transformers, lines, etc.). This step provides a clear goal and scope for subsequent monitoring, ensuring that the monitoring work can be carried out for specific scenarios and equipment, and avoiding the inefficiency of overall monitoring.

[0031] S120, according to the monitoring requirement, marking the key guarantee equipment and obtaining abnormal equipment information; and generating an important scenario list and a key guarantee equipment list based on the monitoring requirement and the abnormal equipment information.

[0032] Specifically, marking the key guarantee equipment according to the monitoring requirement (such as marking as "power supply guarantee equipment" or "key equipment in bad weather"), and obtaining the abnormal information of these equipment in real time (such as faults, alarms, etc.); generating an important scenario list (such as "power supply guarantee scenario for major events") and a key guarantee equipment list (such as "main transformer A, line B") based on the monitoring requirement and the abnormal equipment information. This step concretizes the monitoring requirement through marking and list generation, provides structured data support for subsequent monitoring, ensures that the monitoring work can focus on key scenarios and equipment, and improves the monitoring efficiency.

[0033] Exemplarily, the marking of the key guarantee equipment includes:

[0034] Import the list of substations, electrical bays, or key equipment to be prioritized through fuzzy matching of resource identifiers or device names in a pre-set production management system; conduct secondary verification on the imported device information to ensure data accuracy, and select specific device objects through retrieval; for different scenarios (such as power supply guarantee for major events, adverse weather, etc.), set device field information, including device type (such as main transformer, line, etc.), device name, name of the substation to which it belongs, and guarantee level (such as level 1, level 2, etc.). This process aims to provide structured device information support for subsequent monitoring, ensure that key equipment to be prioritized can be accurately identified and classified, and thus improve the pertinence and efficiency of monitoring.

[0035] Exemplarily, the obtaining of abnormal device information includes:

[0036] Obtain abnormal device information through the abnormal interface of a pre-set production management system, match the abnormal information with the device objects in the current system according to the resource identifier, and simultaneously synchronize this abnormal device information from the non-real-time data area to the real-time data area; when the abnormal interface of the production management system cannot be accessed normally, obtain abnormal device information through the import method of a comma-separated values (CSV) file in the non-real-time data area, and clear the previous import result when importing repeatedly to ensure data uniqueness and accuracy; among them, the comma-separated values file contains key information such as device name, abnormal type, and abnormal description. This process aims to ensure that abnormal device information can be obtained and synchronized in a timely and accurate manner, providing reliable data support for subsequent monitoring and alarm generation.

[0037] Exemplarily, the list of important scenarios includes scenario name (such as power supply guarantee for major events, adverse weather, etc.), start time, end time, and the number of included devices, which is used to clarify the time range of a specific scenario and the scale of the involved devices; the list of key equipment includes highlighting abnormal devices, the number of devices, and the details of key equipment to be prioritized, where the details of key equipment to be prioritized include device name, device guarantee level (such as level 1, level 2, etc.), device status (such as normal, abnormal, etc.), and personalized attributes related to the scenario (such as power supply guarantee priority, weather impact level, etc.), which is used to comprehensively display the key information and status of key equipment to be prioritized. This process aims to provide clear scenario and device information for monitoring personnel in a structured list form, facilitating quick understanding of the device operation status under key scenarios and improving monitoring efficiency and management control capabilities.

[0038] In some embodiments, the method further includes:

[0039] By operating to mark or unmark the device (such as one-key hanging / removing the sign), the device is set to the state that needs to be monitored with emphasis or removed from the state that needs to be monitored with emphasis; among them, the marking operation means including the device in the scope of key monitoring, and the unmarking means removing it from the scope of key monitoring; this operation is realized by responding to clicking on the device icon or selecting the device in the device list, aiming to flexibly adjust the scope of key monitoring devices, ensure that the monitoring resources can focus on the most critical devices in the current scenario, and improve the pertinence and efficiency of monitoring.

[0040] Exemplarily, the operation of performing status marking on the marked key guarantee devices includes:

[0041] On the monitoring interface, the marking status of the key guarantee devices is displayed in real time (such as whether it is marked as needing to be monitored with emphasis); for the scenarios in the important scenario list, it is judged in real time whether the current moment is between the start time and the end time of the scenario, and the status marking operation is automatically executed according to the judgment result (such as marking the device within the scenario time range and unmarking it beyond the range); at the same time, the marking types are defined (such as power protection devices, key devices in bad weather, etc.), and status identifiers related to the marking types are displayed on the key guarantee devices (such as different colors or icons), so that the monitoring personnel can intuitively identify the monitoring status and types of the devices, ensure that the monitoring work can be dynamically adjusted according to the scenario requirements, and improve the flexibility and accuracy of monitoring.

[0042] S130, monitor the key guarantee devices based on the scenario dimension and the device dimension; and link with the preset patrol system to trigger the patrol task for the key guarantee devices.

[0043] Specifically, the key guarantee devices are centrally monitored from the scenario dimension (such as major event power protection, bad weather, etc.) and the device dimension (such as main transformer, line, etc.); at the same time, link with the preset patrol system (such as signal patrol, oil chromatogram monitoring, etc.) to trigger the patrol task for the key guarantee devices. Through multi-dimensional monitoring and triggering of the patrol task, this step ensures that the operating status of the key guarantee devices in different scenarios can be comprehensively grasped, anomalies can be discovered and processed in a timely manner, and the device status control ability is improved.

[0044] Exemplarily, for the scenarios in the important scenario list (such as power supply guarantee for major events, bad weather, etc.), conduct separate monitoring to grasp the status of all devices in real time under this scenario; at the same time, adopt a modular card display method to present the monitoring information in the form of independent cards. Each card includes the device name, device status (such as normal, abnormal, etc.) and alarm information (such as alarm level, content, etc.), so that the monitoring personnel can intuitively and efficiently view the operation of the devices; in addition, link with the preset patrol system to automatically trigger the patrol tasks for key guarantee devices (such as signal patrol, oil chromatogram monitoring, etc.) to ensure that device anomalies can be discovered and processed in a timely manner, improving the comprehensiveness and response efficiency of monitoring.

[0045] Exemplarily, for a certain type of key device (such as main transformer, line, etc.) in the key guarantee device list, centrally display the monitoring information related to it (such as device status, alarm information, etc.); screen, layer and dynamically display the key device information. The basis for screening and layering includes device type (such as transformer, switch, etc.), device status (such as normal, abnormal, etc.) and alarm level (such as level one, level two, etc.). At the same time, perform ascending or descending sorting on various types of telemetry data (such as temperature, current, etc.) so that the monitoring personnel can quickly locate key information; in addition, link with the preset patrol system to automatically trigger the patrol tasks for key guarantee devices (such as signal patrol, oil chromatogram monitoring, etc.) to ensure that device anomalies can be discovered and processed in a timely manner, improving the accuracy and response efficiency of monitoring.

[0046] Exemplarily, for the devices in the key guarantee device list, perform centralized monitoring (centralized monitoring of important telemetry data), overload monitoring (display the information of all devices in the overload state under the important scenario list), auxiliary decision-making (when the device is overloaded, pop up the overload auxiliary decision-making and provide suggestions such as load transfer path, power curtailment range, etc.) and report display (centrally display the overload report situation of key guarantee devices in the current scenario and configure data export and printing interfaces); at the same time, link with the preset patrol system to automatically trigger the patrol tasks for key guarantee devices (such as signal patrol, oil chromatogram monitoring, etc.) to ensure that device anomalies can be discovered and processed in a timely manner, improving the comprehensiveness, decision-making support ability and response efficiency of monitoring.

[0047] Exemplarily, for the key guarantee lines, line centralized monitoring (centralized monitoring of important telemetry data of key guarantee lines in this scenario), heavy overload line monitoring (displaying information of all key guarantee lines in the heavy overload state in this scenario), and report display (centralized display of the heavy overload report of key guarantee lines in the current scenario, and the report content includes line name, heavy overload time, and heavy overload degree) are performed; at the same time, the preset inspection system is linked to automatically trigger inspection tasks for key guarantee lines (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that line anomalies can be discovered and processed in a timely manner, improve the comprehensiveness and response efficiency of monitoring, and provide data support for subsequent decision-making.

[0048] Exemplarily, centralized monitoring and recording of important telemetry data (such as voltage, current, power, etc.) of key guarantee equipment in the current scenario are performed; according to the real-time data of each line, the three-phase unbalance degree of the line is calculated (the three-phase unbalance degree refers to the degree of difference in the amplitude or phase angle of three-phase voltage or current in a three-phase power system), and it is judged whether it exceeds the preset threshold; equipment with a three-phase unbalance degree exceeding the preset threshold is highlighted, and at the same time, the equipment is sorted in descending order based on the real-time voltage value to determine the priority and perform corresponding processing; in addition, the preset inspection system is linked to automatically trigger inspection tasks for key guarantee equipment (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that equipment anomalies can be discovered and processed in a timely manner, improve the accuracy and response efficiency of monitoring, and provide data support for subsequent decision-making.

[0049] Exemplarily, centralized monitoring of on-line oil chromatogram monitoring data (including hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, acetylene, ethane, and total hydrocarbon gas content) of key guarantee equipment in the current scenario is performed; according to the on-line oil chromatogram monitoring data, the three-ratio values (acetylene / ethylene, methane / hydrogen, ethylene / ethane) are calculated, and the fault type (such as overheating, discharge, etc.) is determined through coding combination; when the monitoring data reaches the alarm threshold, the corresponding alarm data is highlighted for quick identification of anomalies by monitoring personnel; at the same time, the preset inspection system is linked to automatically trigger inspection tasks for key guarantee equipment (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that equipment faults can be discovered and processed in a timely manner, improve the accuracy and response efficiency of monitoring, and provide data support for fault diagnosis.

[0050] Exemplarily, centralized monitoring and recording are performed on the unrecovered alarm signals of all key guaranteed devices in the current scenario. The display content of the alarm signals includes the alarm time, alarm level, and alarm content. At the same time, selective display is performed on the remote signal alarms (such as switch position changes, etc.), remote measurement alarms (such as voltage and current overlimits, etc.), and event alarms (such as equipment failures, etc.) to enable monitoring personnel to quickly identify and process key alarm information. In addition, a preset inspection system is linked to automatically trigger inspection tasks for key guaranteed devices (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that equipment abnormalities can be discovered and processed in a timely manner, improving the comprehensiveness and response efficiency of monitoring.

[0051] Exemplarily, centralized monitoring is performed on the switch positions and current information of important users to grasp their operating status in real time. According to the types of power protection tasks (such as power protection for major events, power protection in bad weather, etc.), phased centralized monitoring and recording are performed on important users. At the same time, according to the preset priority classification, continuous annual monitoring is performed on important users to ensure their power supply reliability. In addition, through user interaction operations, the power supply path topology information of the user (such as power source points, line connection relationships, etc.) is obtained and displayed to enable monitoring personnel to comprehensively understand the power supply network structure of the user. A preset inspection system is linked to automatically trigger inspection tasks for key guaranteed devices (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that equipment abnormalities can be discovered and processed in a timely manner, improving the accuracy and response efficiency of monitoring.

[0052] Exemplarily, a signal inspection configuration is generated for a preset scenario (such as power protection for major events, bad weather, etc.), which by default includes all devices in the scenario. At the same time, according to the monitoring requirements, devices in the signal inspection configuration are selectively excluded to optimize the inspection scope. After the inspection is completed, the total number of abnormal signals in the inspection results is displayed, and detailed information about the abnormal signals (such as signal type, occurrence time, equipment location, etc.) is provided to enable monitoring personnel to quickly locate and process problems. A preset inspection system is linked to automatically trigger inspection tasks for key guaranteed devices (such as signal inspection, oil chromatogram monitoring, etc.) to ensure that equipment abnormalities can be discovered and processed in a timely manner, improving the accuracy and response efficiency of monitoring.

[0053] S140, based on the results of the inspection task, generate alarm window information according to the monitoring and display information corresponding to different scenarios or device types on the alarm interface.

[0054] Specifically, based on the results of the patrol tasks (such as equipment anomalies, faults, etc.), alarm window information (such as alarm time, level, content, etc.) is generated and the information corresponding to different scenarios or equipment types (such as "the temperature of main transformer A is too high in the power protection scenario for major events") is displayed on the alarm interface. Through the generation and display of alarm information, this step provides intuitive anomaly prompts for monitoring personnel, facilitating quick problem location and taking corresponding measures, and enhancing the power supply guarantee ability and emergency response efficiency.

[0055] Exemplarily, scenario information (such as power protection for major events, bad weather, etc.) is configured in the regular alarm content, and the equipment to which the alarm information belongs is determined; when the system jumps to the monitoring screen of a specific scenario, anomaly judgment and processing are performed based on the full amount of information (such as equipment status, telemetry data, etc.); at the same time, in response to the trigger operation on the alarm information in the alarm window, it jumps to the monitoring screen of the specific scenario and performs anomaly judgment and processing based on the full amount of information, ensuring that the monitoring personnel can quickly locate the alarm source, comprehensively analyze the anomaly situation, and take corresponding measures, improving the accuracy and efficiency of alarm processing.

[0056] In summary, the above steps form a complete monitoring method for the substation centralized control system through obtaining monitoring requirements, marking equipment, generating lists, multi-dimensional monitoring, triggering of patrol tasks, and display of alarm information. This method can effectively solve the problem of difficult information monitoring in important scenarios such as power protection for major events and bad weather, realize centralized monitoring of key equipment, and enhance the equipment status control ability and power supply guarantee ability.

[0057] The following specifically describes the present application through embodiments.

[0058] Please refer to Figure 2 , Figure 2 which is a schematic diagram of the monitoring system of the substation centralized control system according to the embodiment of the present application. Figure 2 It shows an equipment marking module, a scenario equipment display module, and a differential monitoring interface module. Each module contains multiple functional units, specifically as follows:

[0059] (1) Equipment marking module.

[0060] The equipment marking module is used to identify key equipment and includes the following four units:

[0061] Equipment list import unit: It supports importing the equipment list through the production management system (PMS) resource ID or fuzzy matching of the equipment name, and supports manual secondary verification.

[0062] Manual marking unit: It supports manually adding, modifying, and deleting equipment markings, and the equipment can be selected through the equipment retriever.

[0063] Quick Marking Unit: Supports batch selection and right-click selection of devices to quickly complete the marking operation.

[0064] PMS Defect and Hidden Danger Equipment Interface (also known as PMS Abnormal Equipment Interface): Obtains equipment defect information through the PMS interface and synchronizes it to the centralized control system for identifying defect and hidden danger equipment.

[0065] (2) Scenario Equipment Display Module.

[0066] The Scenario Equipment Display Module is used to centrally display key equipment and scenario information, including the following four units:

[0067] Substation Wiring Diagram Identification Unit: Special identification (such as color, icon) of marked equipment on the substation wiring diagram to facilitate quick identification by operating personnel.

[0068] Equipment Details Display and One-key Hanging / Removing Sign Operation Unit: Supports viewing detailed equipment information and one-key hanging / removing sign operations (such as power protection signs, defect signs, etc.).

[0069] Scenario List Display Unit: Centrally displays the list of all scenarios, including information such as scenario name, time range, and number of equipment.

[0070] Important Scenario Model and Key Equipment Model Unit:

[0071] Important Scenario Model: Connected to the Equipment List Import Unit, Manual Marking Unit, Quick Marking Unit, and PMS Defect and Hidden Danger Equipment Interface for managing equipment markings related to scenarios.

[0072] Key Equipment Model: Connected to the Equipment List Import Unit, Manual Marking Unit, Quick Marking Unit, and PMS Defect and Hidden Danger Equipment Interface for managing the status and identification of key equipment.

[0073] (3) Differential Monitoring Interface Module.

[0074] The Differential Monitoring Interface Module is used to centrally monitor key equipment and scenarios, including the following seven units:

[0075] Patrol System and Centralized Control Interval Sub-diagram Unit: Supports linkage with the patrol system to trigger patrol tasks and display the centralized control interval sub-diagram.

[0076] xx Scenario Differential Display Unit (Scenario Dimension): For specific scenarios (such as power protection, defects, etc.), centrally displays the status information of all equipment under that scenario.

[0077] xx Equipment Differential Display Unit (Equipment Dimension): For specific types of equipment (such as main transformers, lines, etc.), centrally displays their key telemetry, tele-signaling, and alarm information.

[0078] Differentiated display interface index unit: Provides navigation and indexing functions for the differentiated monitoring interface, facilitating quick switching between scenarios or devices.

[0079] Centralized control system real-time data and event-based information unit: Displays the real-time data of the centralized control system (such as current, voltage, load rate, etc.) and event-based information (such as alarms, operation records, etc.).

[0080] Differentiated display unit for alarm window: Adds scenario information to the alarm window to facilitate operators in quickly identifying alarms in important scenarios.

[0081] PMS abnormal data unit: Displays device defect information obtained from the PMS system for assisting in monitoring and decision-making.

[0082] Among them, the important scenario model and key equipment model units of the scenario device display module are respectively connected to the centralized control system real-time data and event-based information unit and the PMS abnormal data unit to achieve data synchronization and linkage.

[0083] Exemplarily, a monitoring method for a substation centralized control system provided by this application includes:

[0084] S201, Marking key guaranteed equipment.

[0085] According to the monitoring requirements of specific periods, special scenarios, or equipment with defect potential, sort out the power supply guarantee scope for peak load during summer (winter), important users, important activities, as well as the grid risk, severe weather, geological disasters, forest and grassland fire warning scope or influence scope. Before the start of power supply guarantee or warning, or after the influence occurs, draw up a list of key guaranteed substations, intervals, or equipment and mark it in the centralized control system. The marking methods include:

[0086] Equipment list import unit: Supports identification through the preset production management system (PMS) resource ID or fuzzy matching of equipment names. Supports repeated import of equipment lists, and deletes the original data when importing repeatedly. On the "Equipment list import unit interface", supports manual secondary verification of equipment information, and the equipment object supports retrieval and selection. In different scenarios, the equipment field information on the "Equipment list import unit interface" is different. Taking the power supply guarantee scenario as an example, the "Equipment list import unit interface" includes equipment type, equipment name (import), affiliated substation name (import), equipment name (matching), affiliated substation name (matching), guarantee level, etc. Such as Figure 3 The provided key equipment list displays the list of key substations, key equipment list, key transmission line list, and key interval list for XX tasks, including information such as serial number, substation, voltage level, substation PMS resource id, etc.

[0087] Manual annotation unit: It supports manual addition, modification, and deletion of important scenarios. For a single scenario, it supports selecting devices through the device retriever. The device retriever can retrieve devices according to the substation - bay - device hierarchy.

[0088] Quick annotation unit: It supports configuring the "Scenario Identification" right - click menu on the devices in the substation wiring diagram and the alarm window, popping up the device identification interface, and ticking the affiliated scenarios, supporting multi - dimensional combined ticking.

[0089] S202, Obtaining abnormal (such as defect and hidden danger) devices.

[0090] It supports obtaining device defect information through the PMS defect interface in the fourth area (i.e., the non - real - time data area), matching the device objects in this system according to the resource id, and synchronizing the defect information from the fourth area to the first area (i.e., the real - time data area). If the PMS interface is not accessible, it can be imported through the comma - separated value file (CSV) in the fourth area. When importing repeatedly, the previous result will be cleared.

[0091] S203, Displaying the important scenario list and key device list.

[0092] The scenario list is centrally displayed, including information such as scenario name, start time, end time, and the number of included devices. It supports highlighting anomalies. Clicking on the specific number of devices supports viewing device details and status. Clicking on device editing supports jumping to the "Device Editing Interface". Clicking on the monitoring screen details supports jumping to the differential monitoring screen of this scenario. For example, Figure 4 The power protection scenario list is displayed, including functions such as start period, power protection task status, power protection task name, new scenario, query, and export. The table content includes serial number, power protection task, power protection task level, power protection start event, power protection end event, number of key substations, number of key roads, number of 10kv key roads, power protection task status, device details, monitoring interface, operations (modification, deletion).

[0093] S204, One - key hanging and removing of tags after device annotation.

[0094] In the "Device Editing Interface", it supports performing one - key hanging and removing of tags. Taking the power protection scenario as an example, it supports one - key hanging and removing the power protection tags for power - protected devices and displaying them on the wiring diagram (which is used to visually display the electrical main wiring mode, device layout, and connection relationship between devices) of the substation, facilitating the operation personnel to monitor the panel. It supports defining the tag type to realize the relevant status identification of the tagged devices. For specific periods and scenarios with start times, it judges the current moment in real - time to achieve automatic hanging and removing of tags. Among them, one - key hanging and removing of tags is used to quickly identify or cancel the identification of devices. It is commonly used in the substation centralized control system for status management of key devices (such as power - protected devices, defective devices, etc.), facilitating the operation personnel to monitor the panel and operate.

[0095] S205, Differentiated monitoring screen.

[0096] It supports monitoring from two dimensions: scenario dimension and device dimension.

[0097] Scenario dimension: Separate monitoring is carried out for each scenario such as peak load during summer and power supply guarantee for important events. The status of all devices under this scenario is monitored, and the monitoring content includes heavy overload monitoring, alarm monitoring, online monitoring, signal inspection, etc. For example Figure 5 Display the remote signal unrecovered alarm form, telemetry overlimit unrecovered alarm form, main transformer heavy overload form and line heavy overload form. The menu bar includes filtering conditions such as alarm type and alarm level. The form content includes information such as serial number, alarm level, alarm time, alarm content, substation name, device name, alarm group name, action description, etc.

[0098] Device dimension: For a certain type of key devices, the device-related information is centrally displayed. For example Figure 6 Display the differentiated device overview interface. The menu bar includes functions such as substation, device status, scenario type, query, etc. The form content includes information such as serial number, substation name, device name, device type, device scenario, status, etc.

[0099] S206, Main transformer monitoring in scenario dimension.

[0100] The monitoring content includes main transformer centralized monitoring, main transformer heavy overload monitoring, main transformer auxiliary decision-making and main transformer reports. As follows:

[0101] Main transformer centralized monitoring: Centrally monitor the important telemetry data of key transformers under this scenario. The important telemetry data of the transformer includes active power, reactive power, current, temperature, load rate. Right-click the mouse to view the historical curve, and it supports comparison with previous year's data.

[0102] Main transformer heavy overload monitoring: Display the information of all main transformers in heavy overload state under this scenario, including substation name, device name, active power, current, main transformer capacity, status, overlimit start time, overlimit duration, load rate, etc. If there are multiple oil temperatures, display the maximum value of the oil temperature. Click on the column names such as load rate and oil temperature to support sorting from large to small. Double-click the substation name, and the screen jumps to the overall view of the corresponding substation. Double-click the transformer name, and the screen jumps to the sectional view of the corresponding transformer interval.

[0103] Main transformer auxiliary decision-making: When the main transformer is overloaded, the "Main transformer overload auxiliary decision-making" window can be automatically popped up, including phenomena, interpretations, reasons, consequences and disposal principles for monitoring and operation and maintenance personnel, etc. The auxiliary decision-making rules support configuring different auxiliary contents according to the main transformer voltage level.

[0104] Main transformer report: centrally display the main transformer overload report in the current scenario, including the total duration of main transformer overload, the number of overload times, and the number of overloaded main transformers today, this month, and this year. The report has template management functions, including template creation, style editing, data editing, filtering conditions, etc., and supports report export.

[0105] S207, line monitoring in the scenario dimension.

[0106] The monitoring content includes line centralized monitoring, line overload monitoring, and line reports, as follows:

[0107] Line centralized monitoring: centrally monitor the important telemetry data of key lines in this scenario. Line telemetry data includes active power, current, load rate, and capacity. Right-click to view historical curves and support comparison with previous years' data. Calculate the line load rate based on the real-time data of each line, automatically judge its load situation, and support calculation according to power or current. Information on overloaded and heavily overloaded lines is highlighted in color. Click on column names such as load rate and current to support sorting from largest to smallest.

[0108] Line overload monitoring: display information on all lines in the overloaded state in this scenario, including substation name, equipment name, active power, current, line capacity, status, overlimit start time, overlimit duration, load rate, etc. Click on column names such as load rate and current to support sorting from largest to smallest.

[0109] Line report: centrally display the line overload report in the current scenario, including the total duration of line overload, the number of overload times, and the number of overloaded lines today, this month, and this year. The report has template management functions, including template creation, style editing, data editing, filtering conditions, etc., and supports report export.

[0110] S208, bus voltage monitoring in the scenario dimension.

[0111] Monitoring content: centrally monitor the important telemetry data of key buses in this scenario. Bus telemetry data includes three-phase phase voltage and three-phase line voltage. Right-click to view historical curves and support comparison with previous years' data. Calculate the three-phase imbalance of the line based on the real-time data of each line and automatically judge its overlimit situation. Buses with three-phase imbalance are highlighted in color. Click on column names such as voltage to support sorting from largest to smallest. Among them, the three-phase imbalance degree refers to the degree of difference in the amplitude or phase angle of the three-phase voltage or current in a three-phase power system. It is an important indicator to measure the balance state of a three-phase power system.

[0112] S209, on-line monitoring of oil chromatography in the scenario dimension.

[0113] Monitoring content: centrally monitor the on-line oil chromatogram monitoring data of key main transformers or lines in this scenario. The on-line oil chromatogram monitoring data includes the content of hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, acetylene, ethane, and total hydrocarbon gas. When the monitoring data reaches the alarm threshold, the corresponding number and background color will turn red for alarm. At the same time, when the mouse is placed on the position of the abnormal data, the corresponding alarm and out-of-limit range value will be displayed. It supports calculating the three ratios (acetylene / ethylene, methane / hydrogen, ethylene / ethane) based on the monitoring data, obtaining the coding combination according to the ratio, and displaying the fault pre-judgment through the coding combination and showing the fault type. Among them, the oil chromatogram is used to detect whether there are faults or potential faults inside the transformer.

[0114] S210, centralized monitoring of alarm in the scenario dimension.

[0115] Monitoring content: centrally display all the unrecovered alarm signals of key equipment in this scenario. The display content includes alarm time, alarm level, alarm content, etc. It supports the check and display of telemetry alarm, telemetry alarm, and event-based alarm.

[0116] S211: Power supply guarantee monitoring of important users in the scenario dimension.

[0117] Monitoring content: centrally monitor important information such as the switch position and current of important users, so as to facilitate the duty officers to timely master the power supply situation. It is possible to conduct phased centralized monitoring of important users according to various power supply guarantee tasks, and it also supports long-term annual monitoring of important users according to types such as government units, hospitals, and schools. Clicking on the user supports viewing the power supply path, showing the power supply line, power supply substation, power supply substation incoming power supply, and topological relationship of the superior substation of the user. On the power supply path tracing page, clicking on any substation can retrieve the operation status of the substation.

[0118] S212: Automatic signal inspection in the scenario dimension.

[0119] For a certain scenario, an automatic signal inspection plan can be created. The inspected equipment is defaulted to all equipment in this scenario, and it supports manually canceling some equipment according to the actual monitoring requirements. The start time and end time of the inspection can be set manually, and it supports customizing the inspection cycle. The inspection content includes data not refreshed, data out-of-limit, light signal loaded, substitution information, blocking information, suppression information, and mismatch between telemetry and telecommunication. The inspection result shows the total number of abnormal quantities, and clicking on it supports viewing the details of specific abnormal signals.

[0120] S213, overall display in the equipment dimension.

[0121] Displays a list of all key - concerned devices and devices with potential defects and hidden dangers, including information such as device name, affiliated substation, affiliated scenario, device status, etc. The device status is comprehensively evaluated based on abnormal light - signal indicators of the device, telemetry out - of - limit, and self - defects of the device, etc., and can accurately judge whether the device is abnormal at that time. Abnormal devices support highlighted display. Clicking on the affiliated substation supports jumping to the general view of the substation.

[0122] S214, classified display by device dimension.

[0123] For devices of types such as main transformers and lines, centralized monitoring for specific types of devices is supported. For example, Figure 6 As shown, for main - transformer - type devices, full - volume display of key telemetry such as main - transformer load and temperature is carried out, full - volume display of unrecovered tele - signals of the main transformer and unrecovered alarm information of oil chromatography is carried out, and dynamic display of main - transformer heavy - overload and oil - temperature early - warning situations is carried out, etc.

[0124] S215, differential - monitoring - screen - linked patrol system.

[0125] Based on the differential - monitoring abnormal results, support for sending linked messages to the patrol system to trigger 1 patrol task, such as conducting an unmanned - aerial - vehicle patrol for a certain main transformer to check whether abnormalities have occurred at the site, and support for linked operations, such as issuing measures like water spraying.

[0126] S216, differential display of the alarm window.

[0127] Scene information is added to the regular alarm content. The device to which the alarm information belongs is found according to the alarm information, and the scene type of the alarm information is judged according to the scene to which the device belongs, which is convenient for the duty personnel to timely discover important - scene alarm information. Clicking on the alarm information on the alarm window can jump to the specific - scene monitoring screen to judge the abnormal situation through full - volume information.

[0128] Next, the monitoring device of the substation centralized - control system provided by this application is described. The monitoring device of the substation centralized - control system described below can be mutually corresponding and referred to the monitoring method of the substation centralized - control system described above.

[0129] Please refer to Figure 7 , Figure 7 is the structural block diagram of the monitoring device of the substation centralized - control system provided by this application. A monitoring device 700 of a substation centralized - control system includes a requirement - parsing module 710, a label - generating module 720, a monitoring - patrol module 730, and an alarm - display module 740.

[0130] Exemplarily, the requirement - parsing module 710 is used to obtain preset monitoring requirements, and the monitoring requirements include one or more of the time range of the scene, the type of the scene, and key - guaranteed devices;

[0131] Exemplarily, the annotation generation module 720 is configured to annotate the key guaranteed devices according to the monitoring requirements, and obtain abnormal device information; and generate a list of important scenarios and a list of key guaranteed devices based on the monitoring requirements and the abnormal device information;

[0132] Exemplarily, the monitoring and inspection module 730 is configured to monitor the key guaranteed devices based on the scenario dimension and the device dimension; and link with a preset inspection system to trigger an inspection task for the key guaranteed devices;

[0133] Exemplarily, the alarm display module 740 is configured to generate alarm window information according to the monitoring based on the result of the inspection task, and display information corresponding to different scenarios or device types in the alarm interface.

[0134] In summary, the monitoring device of the substation centralized control system of the present application obtains monitoring requirements (such as scenario time range, type, and key guaranteed devices) through the requirement analysis module, uses the annotation generation module to annotate the key guaranteed devices and generate a list of important scenarios and a list of key guaranteed devices, conducts centralized monitoring of the devices based on the scenario dimension and the device dimension through the monitoring and inspection module, and links with the inspection system to trigger an inspection task. Finally, the alarm display module generates alarm window information and displays information of different scenarios or device types in the interface, thereby solving the problems of difficult information monitoring and incomplete information in important scenarios such as power supply guarantee for major events and bad weather, realizing centralized monitoring of devices in important scenarios, and significantly improving the control of device status and power supply guarantee ability in special scenarios.

[0135] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A monitoring method for a substation centralized control system, characterized in that: The method comprises: Obtaining preset monitoring requirements, where the monitoring requirements include one or more of a time range of a scene, a type of scene, and key security equipment; According to the monitoring requirements, the key security equipment is marked and abnormal equipment information is obtained; and based on the monitoring requirements and the abnormal equipment information, an important scene list and a key security equipment list are generated; The key security equipment is monitored based on the scene dimension and the equipment dimension; and the preset patrol system is linked to trigger the patrol task of the key security equipment; Based on the results of the patrol task, alarm window information is generated according to the monitoring, and information corresponding to different scenarios or equipment types is displayed in the alarm interface.

2. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The marking of the key security equipment includes: Import the key protection substation, electrical bay or key protection equipment list through the resource identification or equipment name fuzzy matching of the preset production management system; Perform secondary verification on the imported equipment information and select equipment objects through retrieval; According to different scenarios, the equipment field information is set; wherein the equipment field information includes the equipment type, equipment name, plant name and guarantee level.

3. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The obtaining of abnormal device information includes: Acquire abnormal equipment information through the abnormal interface of the preset production management system, match the equipment object of the current system according to the resource identifier, and synchronize the abnormal equipment information from the non-real-time data area to the real-time data area; When the abnormal interface of the production management system cannot be accessed normally, the abnormal device information is obtained by importing the comma-separated value file of the non-real-time data area, and the last import result is cleared when the import is repeated; wherein the comma-separated value file contains the device name, the abnormal type and the abnormal description.

4. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The important scene list includes the scene name, start time, end time and the number of devices included; the key equipment list includes highlighting of abnormal devices, the number of devices and details of key protection equipment; wherein, the key protection equipment details include equipment name, equipment protection level, equipment status and personalized attributes related to the scene.

5. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The method further comprises: A status marking operation is performed on the marked key security equipment, and the status marking operation is an operation to mark or cancel the marking of the equipment; wherein, the marking is to set the equipment to a state requiring key monitoring, and the canceling of the marking is to remove the equipment from the state requiring key monitoring; the marking operation is implemented by responding to clicking on the equipment icon or selecting the equipment in the equipment list.

6. The monitoring method of the substation centralized control system according to claim 5, characterized in that: The performing of the status marking operation on the marked key security equipment includes: Displaying the marking status of the key security equipment on the monitoring interface; For the scenes in the important scene list, determining in real time whether the current moment is between the start time and the end time of the scene, and performing a status marking operation; and Define the tag type and display the status mark related to the tag type on the key security equipment.

7. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The key security equipment is monitored based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Perform separate monitoring on the scenes in the important scene list to monitor the status of all devices in the scene; A modular card display method is adopted to present the monitoring information in the form of independent cards; wherein the card includes the device name, device status and alarm information.

8. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The monitoring of the key security equipment based on the scene dimension and the equipment dimension; and linking the preset patrol system to trigger the patrol task of the key security equipment includes: For a certain type of key equipment in the key security equipment list, the monitoring information related to it is centrally displayed; The key equipment information is filtered, layered and dynamically displayed, and various telemetry data are arranged in ascending or descending order; wherein the filtering and layering are performed according to the equipment type, equipment status and alarm level.

9. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The key security equipment is monitored based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: For the equipment in the key protection equipment list, perform centralized monitoring, heavy overload monitoring, auxiliary decision-making and report display; Among them, for centralized monitoring, important telemetry data of key security equipment are centrally monitored; for heavy overload monitoring, information of all key security equipment in heavy overload state under the important scenario list is displayed; for auxiliary decision-making, when key security equipment is overloaded, overload auxiliary decision-making pops up to provide suggestions on load transfer path and power limit range; for report display, the heavy overload report status of key security equipment in the current scenario is centrally displayed, and the interface for data export and printing is configured.

10. The monitoring method of the substation centralized control system according to claim 1, characterized in that: The key security equipment is monitored based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Execute centralized line monitoring, heavy overload line monitoring, and report display; Among them, for centralized line monitoring, important telemetry data of key protection lines in this scenario are centrally monitored; for heavily overloaded line monitoring, information of all key protection lines in a heavily overloaded state in this scenario is displayed; for report display, the heavy overload report of key protection lines in the current scenario is centrally displayed; the report includes line name, heavy overload time, and heavy overload degree.

11. The monitoring method of the substation centralized control system according to claim 1, characterized in that: Monitor the key security equipment based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Centrally monitor and record important telemetry data of key security equipment in the current scenario; the important telemetry data includes voltage, current and power; Calculate the three-phase imbalance of each line according to the real-time data of each line, and determine whether the three-phase imbalance exceeds a preset threshold; Devices with three-phase imbalance exceeding the preset threshold are highlighted and sorted in descending order based on real-time voltage values ​​for priority processing.

12. The monitoring method of the substation centralized control system according to claim 1, characterized in that: Monitor the key security equipment based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Centrally monitor the oil chromatogram online monitoring data of key equipment in the current scenario; wherein the oil chromatogram online monitoring data includes hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, acetylene, ethane and total hydrocarbon gas content; According to the oil chromatogram online monitoring data, three ratios are calculated, and the fault type is determined by coding combination; wherein the three ratios are acetylene / ethylene, methane / hydrogen, and ethylene / ethane; When the monitoring data reaches the alarm threshold, the corresponding alarm data will be highlighted.

13. The monitoring method of the substation centralized control system according to claim 1, characterized in that: Monitor the key security equipment based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Centrally monitor and record the unrestored alarm signals of all key security equipment in the current scenario; the display content of the alarm signal includes the alarm time, alarm level and alarm content; Selectively display remote signal alarms, telemetry alarms and event-based alarms.

14. The monitoring method of the substation centralized control system according to claim 1, characterized in that: Monitor the key security equipment based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Centrally monitor the switch position and current information of important users; Conduct centralized monitoring and recording of important users in stages according to the type of power supply protection tasks; and conduct continuous monitoring of important users throughout the year according to the preset priority classification; Through user interaction, the power supply path topology information of the user is obtained and displayed.

15. The monitoring method of the substation centralized control system according to claim 1, characterized in that: Monitor the key security equipment based on the scenario dimension and the equipment dimension; The preset patrol system is linked to trigger patrol tasks for the key security equipment, including: Generate a signal patrol configuration for a preset scenario, and the signal patrol configuration includes all devices in the scenario by default; and selectively eliminating devices in the signal patrol configuration according to the monitoring requirements; The total number of abnormal signals in the patrol results is displayed, and information about the abnormal signals is provided.

16. The monitoring method of a substation centralized control system according to claim 1, characterized in that: Based on the results of the patrol task, alarm window information is generated according to the monitoring, and information corresponding to different scenarios or device types is displayed in the alarm interface, including: Configure scenario information in the general alarm content and determine the device to which the alarm belongs based on the alarm information; In response to the system jumping to the monitoring screen of a specific scene, abnormal judgment and processing are carried out based on the full amount of information; In response to the triggering operation of the alarm information in the alarm window, jump to the monitoring screen of the specific scene, and perform abnormal judgment and processing based on the full amount of information.

17. A monitoring device for a substation centralized control system, characterized in that: The device comprises: A demand analysis module, used to obtain preset monitoring requirements, wherein the monitoring requirements include one or more of the time range of the scene, the type of the scene, and key security equipment; A marking generation module, used to mark the key security equipment according to the monitoring requirements and obtain abnormal equipment information; and generate an important scene list and a key security equipment list based on the monitoring requirements and the abnormal equipment information; A monitoring and patrol module is used to monitor the key security equipment based on the scene dimension and the equipment dimension; and to link the preset patrol system to trigger the patrol task of the key security equipment; An alarm display module is used to generate alarm window information based on the results of the patrol task and the monitoring, and to display information corresponding to different scenarios or equipment types in the alarm interface.

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