Power equipment event information sequence diagram display method and device, computer readable storage medium and program product

Abstract

The invention relates to a power equipment event information sequence diagram display method and device, a computer readable storage medium and a program product, and belongs to the field of power systems. The method comprises the following steps: acquiring action event data associated with a fault from a database according to a fault identifier of the fault of power equipment or a line; processing the action event data to return the data according to a time sequence diagram data format so as to generate a time sequence diagram corresponding to the fault, the horizontal axis of the time sequence diagram represents the lifeline of the protection action process, and each control focus on the lifeline represents the action time of each protection action; and the longitudinal axis of the time sequence diagram displays the action condition of each protection device corresponding to the lifeline control focus. The device, the computer readable storage medium and the program product are all used for implementing the method. According to the method, the complete process of the protection action event behavior can be comprehensively and visually displayed, fault analysis and accurate positioning are facilitated, and a firmer guarantee is provided for stable operation of power equipment.

Description

Technical Field

[0001] The present invention belongs to the field of power systems, and specifically relates to a method, device, computer-readable storage medium and program product for displaying a timing diagram of event information of power equipment. Background Art

[0002] Relay protection action events refer to the protective actions of the relay protection device on the equipment or lines in the power system according to the preset protection logic and conditions once a fault or abnormal situation occurs during the operation of the power system. Such action events may include but are not limited to single-phase line disconnection, cable head failure, busbar failure, and generator set power-on accident. This is an automatically executed protection behavior that aims to quickly and accurately identify faults or abnormal conditions, and ensure the safe and stable operation of the power system by removing the faulty part or taking other corresponding measures.

[0003] The action event behavior of the relay protection device is based on real-time monitoring and analysis of the operating status of the power system. By comparing the actual operating parameters with the set protection settings, when parameters outside the normal range are detected, the relay protection device will start immediately and execute corresponding protection measures, such as tripping, cutting off the faulty part, etc., to avoid the expansion of the fault or causing more serious damage to the power system.

[0004] Under normal circumstances, the operating status of the power system is jointly monitored in real time by two sets of protection devices, and there is a significant correlation between the data of these two protection mechanisms. Once the equipment encounters a fault, both sets of protection devices will quickly transmit the captured data information to the monitoring system in the form of messages. The monitoring system will then conduct a detailed analysis of the data so that timely measures can be taken to eliminate equipment failures. Based on the sequential nature of the occurrence of protection action event behaviors, a table is currently usually used to systematically present the action time and specific action status of a single protection device. When it is necessary to view the relevant information of another set of protection actions, the user needs to operate manually by switching the drop-down list of the protection device, and select and determine the specific protection device to be viewed. The specific display method is as follows: Figure 1 shown.

[0005] The current display methods have the following defects: (1) At the same time point, both sets of protection devices may have action events, and there is a potential correlation between these events. Therefore, it is necessary to display the two together to fully reflect the situation. However, the current technical means display the action events of the two sets of protection devices separately, and fail to effectively establish the correlation between them. This situation has brought inconvenience to the fault analysis work to a certain extent, limiting the accuracy and efficiency of fault judgment. (2) In the development process of action events, various action events will occur one by one according to different time points, thus forming a coherent and complete time context. However, the traditional table presentation method currently used can only provide a static display of action information, and fails to fully and intuitively display the complete process of fault action from occurrence to end. This presentation method is not intuitive enough in visual expression, and it is difficult to meet the needs of efficient understanding of the dynamics and coherence of action events.

[0006] Therefore, the current means of display are still insufficient in terms of effectiveness and intuitiveness, and it is difficult to fully and accurately present the complete process of protection action events. Summary of the invention

[0007] The purpose of the present invention is to provide a method, device, computer-readable storage medium and program product for displaying a timing diagram of power equipment event information, so as to solve the problem that the existing display methods are difficult to comprehensively and intuitively present the complete process of protection action event behavior.

[0008] The present invention provides a method for displaying a timing diagram of power equipment event information to solve the above technical problems, comprising the following steps: 1) According to the fault identification of the equipment or line of the power system, the action event data associated with the fault is obtained from the database; 2) Processing the action event data to return data in a timing diagram data format, thereby generating a timing diagram corresponding to the fault that occurred, wherein the horizontal axis of the timing diagram represents the lifeline of the protection action process, each control focus on the lifeline represents the action time of each protection action, and the vertical axis of the timing diagram displays the action status of each protection device corresponding to the lifeline control focus.

[0009] Furthermore, in step 2), before processing the action event data, the acquired action event data is filtered according to the content to be displayed, and the action event data containing the keywords return, distance measurement and reset in the action situation is filtered out.

[0010] Furthermore, each control focus is evenly distributed on the lifeline.

[0011] Furthermore, when processing the action event data in step 2), the action event data corresponding to the same action time of the same protection device are merged into one, wherein different action situations are separated by separators, and the first action event is displayed by default during display, and the remaining action events are provided for users to view in the form of floating boxes.

[0012] Furthermore, step 2) also includes arranging the action conditions of different protection devices corresponding to each control focus on the upper and lower sides of the lifeline according to the parity order of the number of protection devices.

[0013] Furthermore, the timing diagram data format includes the name of the fault-associated protection device, each action time value and the action status of the protection device corresponding to each action time value.

[0014] Furthermore, the action time is the action relative millisecond time.

[0015] The beneficial effects of the method of the present invention are as follows: the display method of the present invention can accurately display the interrelationships between the various protection devices, and intuitively and clearly outline the entire process of the fault occurrence and the corresponding action events in the form of a timeline. Therefore, the display method of the present invention has higher accuracy, can more clearly record and display the action event behavior of the fault information, and can display the entire process of the fault occurrence more intuitively, which provides great convenience for fault analysis and precise positioning, helps to quickly locate the root cause of the problem, and thus take effective measures to repair it, providing a more solid guarantee for the stable operation of power equipment. The present invention provides an apparatus for displaying a timing diagram of electric power equipment event information to solve the above-mentioned technical problems, and includes a processor, a memory and a computer program stored in the memory. The processor executes the computer program to implement the steps of the method for displaying a timing diagram of electric power equipment event information described above.

[0016] The beneficial effects of the device of the present invention are as follows: the display device of the present invention can accurately display the interrelationships between the various protection devices, and intuitively and clearly outline the entire process of the fault occurrence and the corresponding action events in the form of a timeline. Therefore, the display device of the present invention has higher accuracy, can more clearly record and display the action event behavior of the fault information, and can display the entire process of the fault occurrence more intuitively, which greatly facilitates fault analysis and precise positioning, helps to quickly locate the root cause of the problem, and thus take effective measures to repair it, providing a more solid guarantee for the stable operation of power equipment. The computer-readable storage medium provided by the present invention for solving the above-mentioned technical problem stores a computer program, and when the computer program is executed by a processor, the steps of the method for displaying a timing diagram of event information of an electric power device described above are implemented.

[0017] The beneficial effects of the computer-readable storage medium of the present invention are as follows: the computer-readable storage medium of the present invention can accurately display the interrelationships between the various protection devices, and intuitively and clearly outline the entire process of the fault occurrence and the corresponding action events in the form of a timeline. Therefore, the computer-readable storage medium of the present invention has higher accuracy, can more clearly record and display the action event behavior of the fault information, and can display the entire process of the fault occurrence more intuitively, which greatly facilitates fault analysis and precise positioning, helps to quickly locate the root cause of the problem, and thus take effective measures to repair it, providing a more solid guarantee for the stable operation of power equipment.‌ The computer program product provided by the present invention to solve the above technical problems includes a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for displaying a timing diagram of event information of an electric power device.

[0018] The beneficial effect of the computer program product of the present invention is that the computer program product of the present invention can accurately display the mutual relationship between the various protection devices, and intuitively use the timeline form to comprehensively and clearly outline the entire process of fault occurrence and corresponding action events. Therefore, the computer program product of the present invention has higher accuracy, can more clearly record and display the action event behavior of fault information, and the display of the entire process of fault occurrence is more intuitive, which provides great convenience for fault analysis and precise positioning, helps to quickly locate the root cause of the problem, and thus take effective measures to repair it, providing a more solid guarantee for the stable operation of power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram showing the action events and action conditions of existing protection devices; Figure 2 It is a flow chart of a method for displaying a timing diagram of event information of electric power equipment according to an embodiment of the present invention; Figure 3 It is a timing diagram of power equipment event information according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the timing diagram data format of an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] As a type of interaction diagram in the Unified Modeling Language, the timing diagram aims to visually display the collaboration mechanism of multiple objects in dynamic scenarios by elaborating the time sequence of message transmission between objects. This diagram method pays special attention to the order and timing of message transmission. Its core elements include key components such as roles, objects, lifelines, control focus, and messages. Specifically, objects and lifelines together depict the existence status and activity trajectory of entities in the system; messages are represented by arrow symbols pointing from the lifeline of one object to the lifeline of another object, and are arranged one by one in the diagram in the natural order from top to bottom along the timeline to ensure the accuracy and clarity of information transmission.

[0022] The basic idea of ​​the present invention is to accurately display the interrelationships among the protection devices in the form of a timing diagram, and to intuitively and clearly outline the entire process of fault occurrence and corresponding action events in the form of a time axis.

[0023] Embodiment of the method for displaying the timing diagram of power equipment event information of the present invention Based on the above basic idea, the method for displaying the timing diagram of power equipment event information of the present invention includes the following steps: Figure 2 As shown: 1) According to the fault identification of the equipment or line of the power system, the action event data associated with the fault is obtained from the database; 2) Process the action event data to return data in the format of the timing diagram data, thereby generating a timing diagram corresponding to the fault. The horizontal axis of the timing diagram represents the lifeline of the protection action process, and each control focus on the lifeline represents the action time of each protection action. The vertical axis of the timing diagram shows the action status of each protection device corresponding to the lifeline control focus, such as Figure 3 shown.

[0024] Regarding step 1), usually, when a power device or line in the power system fails, the protection device associated with the power device or line will send an action event message to the monitoring system; the monitoring system parses the sent action event message and stores the parsed data in the database according to the specified data format. The specified data format usually includes: equipment fault ID (fault identification), protection device name, action time and action status.

[0025] Therefore, in step 1), when a fault occurs in a device or line of the power system, the fault ID of the fault may be obtained, and then the action event data associated with the fault may be obtained from the database according to the fault ID.

[0026] Regarding step 2), the timing diagram is a two-dimensional graphical representation, where the horizontal axis represents the lifeline of the protection action process, where the key control point of the lifeline is the relative time of the protection action; and the vertical axis shows the specific action conditions on these lifeline control focuses. In this diagram, the same control focus can correspond to multiple different action conditions of the same protection device, the same action condition of different protection devices, or different action conditions of different protection devices, thereby comprehensively and systematically showing the overall process and details of the protection action.

[0027] In step 2), the action event data is summarized and sorted according to the list of fault-related protection devices, the list of data displayed in the upper half of the timing diagram, the list of data displayed in the lower half of the timing diagram, and the time axis coordinate values, and then Figure 4 The data format displayed in . Among them, the list of fault-related protection devices contains the names of the protection devices associated with the fault, the list of data displayed in the upper part of the timing diagram contains the actions that need to be displayed in the upper part of the timing diagram, the list of data displayed in the lower part of the timing diagram contains the actions that need to be displayed in the lower part of the timing diagram, and the time axis coordinate values ​​are the time values ​​of each action.

[0028] like Figure 4 As shown, the timing diagram data format includes the name of the fault-related protection device, each action time value and the action status of the protection device corresponding to each action time value.

[0029] For the same control focus that can correspond to multiple different action conditions of the same protection device, step 2) also includes merging the data corresponding to multiple action events of the same protection device at the same action time into one, in which different action conditions are separated by delimiters and then spliced ​​together; to keep the interface simple and clear, the system displays the first action event by default, and the remaining action events are displayed to users in the form of Tooltips (floating boxes) to ensure the comprehensiveness and accessibility of information.

[0030] Regarding step 2), not all action event data associated with the fault are meaningful data that need to be displayed to the user. If they are displayed directly without being filtered, the content displayed in the timing diagram will be redundant and not concise enough. It cannot clearly outline the time context of the fault occurrence and the corresponding action event, which is not convenient for users to observe. For this reason, in step 2), before processing the action event data, the acquired action event data can be filtered according to the content to be displayed.

[0031] The return action conditions such as protection tripping return, protection action return, and other action conditions such as ranging and resetting in the action event data are all unnecessary data to display. Therefore, as a preferred implementation method, in step 2), the action event data containing keywords such as return, ranging and resetting in the action conditions can be filtered out.

[0032] As a preferred implementation, the present invention follows a unified display rule for the action events associated with these protection devices: according to the parity order of the number of protection devices, the action status of each protection device corresponding to each control focus is presented in the form of an arrangement on the upper and lower sides of the lifeline to ensure the orderliness and logic of the information. For example, when a power device fails, there are two protection devices associated with the device, and the action status of the two protection devices is distributed on the upper and lower sides of the lifeline respectively. Figure 3 When there are four, the actions of protection devices 1 and 3 are distributed on the upper side of the lifeline, the actions of protection devices 2 and 4 are distributed on the lower side of the lifeline, and so on.

[0033] Preferably, according to the number of action times, the spacing between the control focuses will be equally divided to ensure the uniformity and accuracy of the distribution of the control focuses on life; Preferably, according to the data format returned by the data processing, the control focus of the horizontal axis is set to the relative millisecond time of the action, with the starting point being 0 milliseconds, such as Figure 3 As shown, the protection start action is the starting action, and the action time of the protection start action is 0 milliseconds. After 41 milliseconds, the protection device 220KV Minhua I return main two protection PRS-753NA2-N (referred to as protection device 2) performs channel 1 phase differential action. After 42 milliseconds relative to the starting point action, the protection device 2 performs a protection action again. After 992 milliseconds relative to the starting point action, the protection device 220KV Minhua I return main one protection WXH-803A2-N (referred to as protection device 1) performs a reclosing action. After 1125 milliseconds relative to the starting point action, the protection device 2 performs a reclosing action again. Then, the relative millisecond times of each action are 0ms, 41ms, 42ms, 992ms, and 1125ms.

[0034] Preferably, the names of various types of protection devices are clearly identified by differentiating them with different colors to enhance recognition. Preferably, in order to maintain visual consistency, the font color of the action event action status is consistent with the color of the name of the associated protection device, thereby improving the readability and comprehensibility of the overall information.

[0035] Accordingly, when the data is returned in the timing diagram data format in step 2), the timing diagram data format also includes the colors for displaying the names of various protection devices and the colors for displaying the action conditions in the upper and lower parts of the timing diagram.

[0036] Of course, as other implementations, the names of various types of protection devices can also be expressed in different fonts or font sizes, and accordingly, the fonts of the action conditions are consistent with the fonts of the names of the associated protection devices. Accordingly, when data is returned in the timing diagram data format in step 2), the timing diagram data format also includes the fonts and sizes of the names of various types of protection devices, and the fonts and sizes of the action conditions in the upper and lower parts of the timing diagram.

[0037] Embodiment of the present invention of the device for displaying the timing diagram of the event information of the electric power equipment The device includes a processor, a memory and a computer program stored in the memory. The processor executes the computer program to implement a method for displaying a timing diagram of event information of an electric power device. The method refers to the method for displaying a timing diagram of event information of an electric power device in the above-mentioned method embodiment and will not be described in detail here.

[0038] A computer readable storage medium embodiment The computer-readable storage medium stores a computer program, which, when executed by a processor, implements a method for displaying a timing diagram of event information of an electric power device. The method refers to the method for displaying a timing diagram of event information of an electric power device in the above-mentioned method embodiment, which will not be described in detail here.

[0039] A computer program product embodiment The computer program product includes a computer program, which, when executed by a processor, implements a method for displaying a timing diagram of event information of an electric power device. The method refers to the method for displaying a timing diagram of event information of an electric power device in the above-mentioned method embodiment, which will not be described in detail here.

[0040] In summary, when the equipment or lines of the power system encounter a fault, its supporting protection device will quickly send the captured data to the system in the form of a message. The system will then perform precise parsing of the sent message according to the established protocol format, store and process it according to the established data structure specification, and finally generate a timing diagram for the Web interface to call according to the display method of the present invention. The present invention has the following advantages: 1) The action event information between protection devices establishes an interrelated system, abandoning the traditional practice of consulting data information in a separate form. 2) By introducing the timing diagram lifeline mechanism, an intuitive display of the entire process of the fault is achieved, which greatly facilitates fault analysis and precise positioning. This mechanism ensures the clarity and accuracy of the analysis process, helps to quickly locate the root cause of the problem, and thus take effective measures to repair it.

Claims

1. A method for displaying a timing diagram of power equipment event information, characterized in that: The method comprises the following steps: 1) According to the fault identification of the equipment or line of the power system, the action event data associated with the fault is obtained from the database; 2) Processing the action event data to return data in a timing diagram data format, thereby generating a timing diagram corresponding to the fault that occurred, wherein the horizontal axis of the timing diagram represents the lifeline of the protection action process, each control focus on the lifeline represents the action time of each protection action, and the vertical axis of the timing diagram displays the action status of each protection device corresponding to the lifeline control focus.

2. The method for displaying a timing diagram of power equipment event information according to claim 1, characterized in that: In step 2), before processing the action event data, the acquired action event data is filtered according to the content to be displayed, and the action event data containing the keywords return, distance measurement and reset in the action situation is filtered out.

3. The method for displaying a timing diagram of power equipment event information according to claim 1, characterized in that: The control foci are evenly distributed on the lifeline.

4. The method for displaying a timing diagram of power equipment event information according to claim 1, characterized in that: When processing the action event data in step 2), the action event data corresponding to the same action time of the same protection device are merged into one, in which different action conditions are separated by separators, and the first action event is displayed by default during display, and the remaining action events are provided for users to view in the form of floating boxes.

5. The method for displaying a timing diagram of power equipment event information according to claim 1, characterized in that: Step 2) also includes arranging the action conditions of different protection devices corresponding to each control focus on the upper and lower sides of the lifeline according to the parity order of the number of protection devices.

6. The method for displaying a timing diagram of power equipment event information according to claim 1, characterized in that: The timing diagram data format includes the name of the fault-related protection device, each action time value and the action status of the protection device corresponding to each action time value.

7. The method for displaying a timing diagram of power equipment event information according to any one of claims 1 to 6, characterized in that: The action time is the relative millisecond time of the action.

8. A device for displaying a timing diagram of event information of an electric power device, the device comprising a processor, a memory and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the method for displaying the timing diagram of power equipment event information as described in any one of claims 1-7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for displaying a timing diagram of event information of an electric power device as described in any one of claims 1 to 7 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method for displaying a timing diagram of event information of an electric power device as described in any one of claims 1 to 7 are implemented.

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