Substation one-key sequential control accident recall method and system

Abstract

The invention belongs to the technical field of substation automation, and particularly relates to a substation one-key sequential control accident recalling method and system.The method comprises the steps that when one-key sequential control operation fails, remote signaling information, remote measuring information and warning information in a set time period including sequential control interval sequential control failure time are stored; and when the one-key sequential control accident positioning is triggered, the remote signaling information, the remote measurement information and the alarm information in the set time period are displayed according to a time sequence. By obtaining the data information in the corresponding time period and storing the data information in the time period, compared with the process of storing all data in the whole process of one-key sequential control, the memory space of the stored data is reduced, the process of fault positioning is achieved through the data in the set time period, and due to the fact that the data size is small, the fault positioning efficiency is improved. Therefore, when one-key sequential control accident positioning is carried out, the positioning efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of substation automation, and in particular relates to a substation one-key sequential control accident recall method and system. Background Art

[0002] One-button sequential control is a mode of substation switching operation. The system can realize the prefabrication of operation project software, modular construction of operation tasks, automatic identification of equipment status, intelligent verification of anti-misinterlocking, one-button start of operation steps, and automatic sequential execution of operation process during the switching operation, and finally complete the transformation of substation equipment from source equipment state to target equipment state. With the rapid development of smart grid construction, in recent years, along with the development of primary and secondary smart equipment in the power grid, as well as the comprehensive automation and intelligent transformation of substations, the programmed one-button sequential control operation of substations has gradually met the corresponding technical implementation conditions and has been widely promoted and applied.

[0003] Compared with the traditional operation mode, one-button sequential control has two significant advantages. First, operators do not need to go to the substation site, which greatly reduces the workload of operation and maintenance personnel. Second, the use of pre-made one-button sequential control operation tickets and operation steps reduces the probability of misoperation that may occur during single-step operation and greatly improves the efficiency of switching operations. The use of one-button sequential control operation will further reduce the personal danger of operators, improve the safety of equipment operation, improve the efficiency of power grid operation and maintenance, and promote the improvement of quality and efficiency of power grid operation.

[0004] During the one-button sequential control process, the sequential control may fail due to reasons such as the locking signal not being satisfied, the operating conditions not being satisfied, and the failure of the anti-error host verification, thereby causing the sequential control process to be terminated, affecting the power supply or power outage operation of the substation, and further affecting electricity consumption. When the sequential control process is terminated during the one-button sequential control process, the cause of the one-button sequential control failure is usually investigated based on the substation monitoring system. When investigating the cause of the one-button sequential control failure, the substation monitoring system usually locates the cause of the one-button sequential control failure by searching the operation records, historical data, and historical alarm data of the monitoring system. Since the operation records, historical data, and historical warning data of the monitoring system are of many types and large in volume, the method of locating the cause of the accident based on the corresponding data of the monitoring system with a large amount of data and many types of data makes the process of locating the cause of the accident more cumbersome, thereby reducing the efficiency of accident locating. Summary of the invention

[0005] The object of the present invention is to provide a substation one-key sequential control accident recall method and system to solve the problem that the existing method for realizing one-key sequential control accident recall based on monitoring system data has cumbersome process and low efficiency.

[0006] In order to solve the above technical problems, the present invention provides a substation one-key sequential control accident recall method, comprising the following steps:

[0007] 1) When a one-button sequential control operation fails, the telesignaling information, telemetering information and alarm information within the set time period including the sequential control interval and the sequential control failure moment are stored;

[0008] 2) When the one-button sequential control accident location is triggered, the telesignaling information, telemetry information and alarm information within the set time period will be displayed in chronological order.

[0009] The beneficial effects are as follows: in order to improve the efficiency of determining the cause of the failure of the one-key sequential control, the substation one-key sequential control accident recall method of the present invention obtains data information within the corresponding time period and stores the data information within this time period. Compared with the process of storing all the data in the entire one-key sequential control process, the memory space for storing data is reduced, and the fault location process is realized through the data within the set time period. Since the amount of data is small, the efficiency of positioning is improved when locating the one-key sequential control accident. The set time period of the present invention is a time period including the moment of the fault. Since the accident occurs close to the moment when the one-key sequential control stops, the cause of the one-key sequential control failure can be located by only obtaining information within the time period including the moment when the one-key sequential control stops. Therefore, the method of the present invention improves the efficiency of accident location while ensuring that the accident can be located.

[0010] Further, in step 1), the set time period includes a first set time moment before the sequential control failure moment of the sequential control interval to the sequential control failure moment of the sequential control interval.

[0011] Furthermore, the set time period also includes a second set time moment from the sequential control interval sequential control failure moment to the sequential control interval sequential control failure moment.

[0012] Taking into account the situation that when the corresponding sequential control process termination reasons (for example: locking signal is not satisfied, operating conditions are not satisfied, anti-error host verification fails) occur, the sequential control process will terminate after a certain period of time. Therefore, the method of the present invention stores only the data of the time period before the termination moment, and uses the stored data to determine the termination reason of the sequential control process. In addition, the present invention takes into account the possibility of changes in telesignaling information, telemetry information and alarm information within a period of time after the termination of the sequential control process, and the data within this period of time is conducive to determining the termination reason of the sequential control process. Therefore, the data within this period of time is also stored accordingly, thereby making the determination of the termination reason more accurate.

[0013] Furthermore, by acquiring telesignaling information, telemetering information and alarm information in real time between the start time of one-key sequential control and the set second time moment after the one-key sequential control failure time, when the one-key sequential control operation fails, the telesignaling information, telemetering information and alarm information within the set time period are stored by retaining the data except for the telesignaling information, telemetering information and alarm information between the start time of one-key sequential control and the set first time moment before the sequential control failure time of the sequential control interval.

[0014] The method of the present invention obtains data by first acquiring the data and then processing the data. In the process of data acquisition, the data can be directly acquired without judging the data, thereby ensuring the efficiency of data acquisition. The accuracy of data processing can be ensured by processing the data after the data is acquired.

[0015] Furthermore, in step 1), when the one-key sequential control operation fails, the real-time library section file of the sequential control interval at the time of sequential control failure will also be stored; in step 2), when the one-key sequential control accident location is triggered, the real-time library section file of the sequential control interval at the time of sequential control failure will also be displayed.

[0016] The present invention also stores the real-time library section file at the time of sequential control failure during the sequential control interval, and then displays the real-time library section file at the time of sequential control failure during the one-key sequential control accident location triggering, thereby achieving a more intuitive display and helping to improve the efficiency of accident location.

[0017] In order to solve the above technical problems, the present invention also provides a substation one-key sequential control accident recall system, including a processing unit and a display unit. The processing unit is used to store the telesignaling information, telemetering information and alarm information within a set time period including the moment of sequential control failure of the sequential control interval when the one-key sequential control operation fails; the display unit is used to display the telesignaling information, telemetering information and alarm information within the set time period stored by the processing unit in chronological order when the one-key sequential control accident location is triggered.

[0018] The beneficial effects are as follows: in order to improve the efficiency of determining the cause of the failure of the one-key sequential control, the substation one-key sequential control accident recall system of the present invention obtains data information within the corresponding time period and stores the data information within this time period. Compared with the process of storing all the data in the entire one-key sequential control process, the memory space for storing data is reduced, and the process of fault locating is realized through the data within the set time period. Since the amount of data is small, the efficiency of locating the one-key sequential control accident is improved. The set time period of the present invention is a time period including the moment of the fault. Since the occurrence of the accident is close to the moment when the one-key sequential control stops, the cause of the one-key sequential control failure can be located by only obtaining the information within the time period including the moment when the one-key sequential control stops. Therefore, the system of the present invention improves the efficiency of accident locating while ensuring that the accident can be located.

[0019] Further, the set time period includes a first set time moment before the sequential control failure moment of the sequential control interval to the sequential control failure moment of the sequential control interval.

[0020] Furthermore, the set time period also includes a second set time moment from the sequential control interval sequential control failure moment to the sequential control interval sequential control failure moment.

[0021] Taking into account the situation that when the corresponding sequential control process termination reasons (for example: locking signal is not satisfied, operating conditions are not satisfied, anti-mistaken host verification fails) occur, the sequential control process will terminate after a certain period of time. Therefore, the system of the present invention stores only the data of the time period before the termination moment, and uses the stored data to determine the termination reason of the sequential control process. The present invention also takes into account the possibility of changes in telesignaling information, telemetry information and alarm information within a period of time after the termination of the sequential control process, and the data within this period of time is conducive to determining the termination reason of the sequential control process. Therefore, the data within this period of time is also stored accordingly, thereby making the determination of the termination reason more accurate.

[0022] Furthermore, the processing unit obtains telesignaling information, telemetering information and alarm information in real time between the start time of one-key sequential control and the second time moment set after the time when the one-key sequential control fails. When the one-key sequential control operation fails, the processing unit stores the telesignaling information, telemetering information and alarm information within the set time period by retaining the data except for the telesignaling information, telemetering information and alarm information between the start time of one-key sequential control and the first time moment set before the time when the sequential control fails.

[0023] The system of the present invention acquires data first and then processes the data. In the process of data acquisition, data can be directly acquired without judging the data, thereby ensuring the efficiency of data acquisition, and the accuracy of data processing can be ensured by processing the data after the data is acquired.

[0024] Furthermore, the processing unit is also used to store the real-time library section file of the sequential control interval at the time of sequential control failure when the one-key sequential control operation fails; the display unit is also used to display the real-time library section file of the sequential control interval failure stored by the processing unit when the one-key sequential control accident location is triggered.

[0025] The present invention also stores the real-time library section file at the time of sequential control failure during the sequential control interval, and then displays the real-time library section file at the time of sequential control failure during the one-key sequential control accident location triggering, thereby achieving a more intuitive display and helping to improve the efficiency of accident location. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a logical flow chart of accident recall service data processing of the present invention;

[0027] Figure 2 This is a system architecture diagram of the one-key sequential control accident recall implementation solution of the present invention;

[0028] Figure 3 It is a schematic diagram of the accident recall display triggered by a one-button sequential control of the present invention;

[0029] Figure 4 is a display schematic diagram of the accident recall inversion console of the present invention;

[0030] Figure 5 This is a schematic diagram showing the one-key sequential control accident query function of the present invention;

[0031] Figure 6 It is a sequential control interval diagram showing the one-key sequential control failure accident inversion result of the present invention;

[0032] Figure 7 It is a one-key sequential control failure accident inversion result display failure process alarm list diagram of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0034] Substation one-button sequential control accident recall system implementation example:

[0035] The one-key sequential control accident recall system of the present embodiment includes a processing unit and a display unit. In addition, the system of the present embodiment fully considers the complexity of operators in checking the causes of one-key sequential control failures on the basis of complying with the technical specifications for the transformation of substation one-key sequential control, and proposes a more convenient and easier-to-operate method that shortens the time for operators to locate the causes of one-key sequential control failures, namely, the implementation scheme for one-key sequential control accident recall of substations. In order to improve the efficiency of determining the cause of the failure of one-key sequential control, the substation one-key sequential control accident recall system of this embodiment obtains data information within the corresponding time period through the processing unit, and stores the data information within this time period. Compared with the process of storing all the data in the entire one-key sequential control process, the memory space for storing data is reduced, and the fault location process is realized through the data within the set time period. Since the amount of data is small, the efficiency of positioning is improved when locating the one-key sequential control accident. The set time period of this embodiment is a time period including the moment of the fault. Since the accident occurs close to the moment when the one-key sequential control stops, the cause of the one-key sequential control fault can be located by only obtaining the information within the time period including the moment when the one-key sequential control stops. Therefore, the system of this embodiment improves the efficiency of accident location while ensuring that the accident can be located.

[0036] The system of this embodiment registers the remote signal change message, telemetry change message and alarm message of the whole station by the accident recall service, and then in the one-key sequential control process, the one-key sequential control accident recall system of this embodiment can receive the remote signal, telemetry change and alarm notification for cache. In order to improve the efficiency of accident location in the one-key sequential control, the system of this embodiment triggers the accident recall service when an operation fails during the one-key sequential control process, and stores all the remote signals, telemetry and alarms in the interval from m minutes before the sequential control failure moment (i.e., the first time is set before, and the time can be configured) to n minutes after the sequential control failure moment (i.e., the second time is set after, and the time can be configured), and then realizes the investigation of the cause of the one-key sequential control failure based on this stored information. In this embodiment, the accident details information is also stored separately, and the accident details are the alarm information of the failure cause in the alarm information. In this embodiment, not only all the alarm information in the time period is stored, but also the alarm information of the failure cause in the alarm information is separately listed and stored, so as to improve the efficiency of locating the cause of the accident according to the accident details. In addition, in the one-key sequential control process, when an operation fails and the sequential control process is terminated, the system of this embodiment will also store the real-time library section file at the time of the accident (i.e., the time when the sequential control process is terminated), so that a more intuitive display process can be achieved by displaying the real-time library section file during accident recall. That is, after the accident recall service receives the triggering accident recall message, the system of this embodiment generates a real-time library section file at the current time, records the current accident occurrence time, and after a delay of n minutes, stores the cached telesignaling changes, telemetry changes, and alarm information received between m minutes before the accident occurrence time and n minutes after the accident occurrence time in the accident recall history library.

[0037] like Figure 1 As shown in the figure, the accident recall service data processing logic flow includes:

[0038] 1) The system of this embodiment receives the telesignal position change, telemetering position change and alarm information on the message bus at the start of one-key sequential control, and caches the telesignal queue, telemetering queue and alarm queue.

[0039] 2) If an operation fails, resulting in the termination of the sequential control process, the current accident time is recorded. Within n minutes after this time, the telesignal change, telemetry change and alarm information are still obtained from the message bus, and the corresponding data information is cached by changing the telesignal queue, changing the telemetry queue and the alarm queue, and the accident recall service is triggered, that is, the accident recall service starts data processing: traverse the queue data of the change telesignal queue, change telemetry queue and alarm queue, delete the data in the queue data before the m minutes before the current accident time, and store the remaining queue data. In this way, in the one-key sequential control process, when an operation fails and the sequential control process is terminated, the accident recall service is triggered to store all telesignal information, telemetry information and alarm information in the interval from m minutes before the sequential control failure time to n minutes after the sequential control failure time.

[0040] In this embodiment, it is taken into account that when the corresponding reasons for termination of sequential control (for example, locking signal is not satisfied, operating conditions are not satisfied, anti-misoperation host verification fails), the sequential control process will terminate after a certain period of time. Therefore, the system of this embodiment stores only the data of the time period before the termination time, and uses the stored data to determine the reason for termination of the sequential control process. In addition, in this embodiment, it is taken into account that the telesignaling information, telemetry information and alarm information may change within a period of time after the termination of the sequential control process, and the data within this period of time is helpful to determine the reason for termination of the sequential control process. Therefore, the data within this period of time is also stored accordingly, so that the determination of the termination reason is more accurate.

[0041] Figure 1 After the cycle ends, the accident recall service is put to sleep for one minute before being restarted to avoid the accident recall service from running continuously.

[0042] like Figure 2 As shown, the local one-button sequential control and the remote one-button sequential control start to execute, and the source equipment status verification before execution, the sequential control locking signal judgment, the overall judgment of the whole station accident, the single-step execution pre-condition judgment, the single-step monitoring system anti-error verification, the single-step intelligent anti-error system verification, the single-step operation instruction is issued, and the single-step confirmation condition judgment is not met, which triggers the accident recall. Figure 2As shown, when the state verification of the source equipment before execution fails, the judgment of the sequential control locking signal fails, the overall judgment of the whole station accident fails, the judgment of the pre-condition of single-step execution fails, the single-step monitoring system anti-error verification fails, or the single-step operation instruction fails to be issued, the accident recall is directly triggered. When the single-step intelligent anti-error system verification fails or the single-step confirmation condition judgment fails, it is further judged whether the failure can be ignored. If it can be ignored, the sequential control process will continue to be executed, and the accident recall will be triggered only when it cannot be ignored. This setting is based on the operation requirements of one-key sequential control, that is, when some processes fail, they can be ignored and the sequential control process will continue. Therefore, when this process fails, the accident recall triggering process meets the one-key sequential control operation requirements by continuing to judge whether it can be ignored.

[0043] like Figure 3 The example of triggering accident recall when there is an accident total when one-button sequential control is executed is shown. The system of this embodiment processes the acquired data to reduce the amount of stored data. When determining the cause of the accident, it is necessary to make a judgment based on the stored data. Therefore, in this embodiment, when the one-button sequential control accident location is triggered, the telesignaling information, telemetry information and alarm information within the set time period are displayed in chronological order.

[0044] Based on the system of this embodiment, when the operator needs to review the one-key sequence control failure process and query the cause of the one-key sequence control failure, the accident recall query tool can be used for query. Figure 4 The following is the accident recall inversion console, which can be used for accident selection, accident inversion, and accident analysis. Click the accident selection button as shown. Figure 5 As shown in the figure, you can select the one-key sequence control accident query. Select a one-key sequence control failure event and click Start Recall. Figure 6 , Figure 7 The figure shows the period between m minutes before and n minutes after the failure of the one-button sequential control, and the graphics, telesignaling, telemetry, alarm and other information are displayed in a centralized manner. Figure 6 The sequential control interval diagram is shown for this embodiment. Figure 6 The circuit structure part (i.e. Figure 6 The middle line 263 schematic), the communication status schematic part (ie Figure 6 Communication status A, communication status B and operation status schematic part) and current and voltage data schematic part (i.e. Figure 6 The first column of the table is the data identifier, for example, Ia is the current at a, Ua is the voltage at a, the second column is the specific value, and the third column is the value unit). Figure 7 This example shows the alarm list of the failure process, which shows the alarm time and the corresponding alarm description. Figure 6 as well as Figure 7The display process allows operators to review the entire process of one-key sequential control failure more intuitively, so that they can locate the cause of the failure more quickly.

[0045] Substation one-key sequential control accident recall method embodiment:

[0046] The method of this embodiment is to store the telesignaling information, telemetering information and alarm information within the set time period including the moment of the sequential control failure of the sequential control interval when the one-key sequential control operation fails; and when the one-key sequential control accident location is triggered, the telesignaling information, telemetering information and alarm information within the set time period are displayed in chronological order. That is, during the one-key sequential control process, when an operation failure occurs, resulting in the termination of the sequential control process, the accident recall service is triggered to store all telesignaling, telemetering, alarm and accident details of the interval from m minutes before the sequential control failure moment (the time can be configured) to n minutes after the sequential control failure moment (the time can be configured), and save the real-time library section file at the time of the accident. When the operating personnel need to review the one-key sequential control failure process and query the cause of the one-key sequential control failure, they can select the accident, invert the accident and analyze the accident through the accident recall inversion console. The specific steps of the substation one-key sequential control accident recall method have been described in detail in the embodiment of the substation one-key sequential control accident recall system, and will not be repeated here.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A method for recalling substation one-key sequential control accidents, characterized in that: The steps include: 1) When a one-button sequential control operation fails, the telesignaling information, telemetering information and alarm information within the set time period including the sequential control interval and the sequential control failure moment are stored; 2) When the one-button sequential control accident location is triggered, the telesignaling information, telemetry information and alarm information within the set time period will be displayed in chronological order.

2. The substation one-key sequential control accident recall method according to claim 1 is characterized in that: In step 1), the set time period includes a first set time moment before the sequential control failure moment of the sequential control interval to the sequential control failure moment of the sequential control interval.

3. The substation one-key sequential control accident recall method according to claim 2 is characterized in that: The set time period also includes a second time moment set after the sequential control interval sequential control failure moment to the sequential control interval sequential control failure moment.

4. The substation one-key sequential control accident recall method according to claim 3 is characterized in that: By acquiring telesignaling information, telemetering information and alarm information in real time between the start time of one-key sequential control and the set second time after the one-key sequential control failure time, when the one-key sequential control operation fails, the telesignaling information, telemetering information and alarm information within the set time period are stored by retaining the data except for the telesignaling information, telemetering information and alarm information between the start time of one-key sequential control and the set first time before the sequential control failure time of the sequential control interval.

5. The substation one-key sequential control accident recall method according to claim 1 is characterized in that: In step 1), when the one-key sequential control operation fails, the real-time library section file of the sequential control interval at the time of sequential control failure will also be stored; in step 2), when the one-key sequential control accident location is triggered, the real-time library section file of the sequential control interval at the time of sequential control failure will also be displayed.

6. A one-button sequential control accident recall system for a substation, characterized in that: It comprises a processing unit and a display unit. The processing unit is used to store the telesignaling information, telemetering information and alarm information within a set time period including the moment of the sequential control failure when the one-key sequential control operation fails; the display unit is used to display the telesignaling information, telemetering information and alarm information within the set time period stored by the processing unit in chronological order when the one-key sequential control accident location is triggered.

7. The substation one-key sequential control accident recall system according to claim 6 is characterized in that: The set time period includes a first time moment set before the sequential control failure moment of the sequential control interval to the sequential control failure moment of the sequential control interval.

8. The substation one-key sequential control accident recall system according to claim 7 is characterized in that: The set time period also includes a second time moment set after the sequential control interval sequential control failure moment to the sequential control interval sequential control failure moment.

9. The substation one-key sequential control accident recall system according to claim 8, characterized in that: The processing unit acquires telesignaling information, telemetering information and alarm information in real time between the start time of one-key sequential control and the second time moment set after the time when the one-key sequential control fails. When the one-key sequential control operation fails, the processing unit stores the telesignaling information, telemetering information and alarm information within the set time period by retaining the data except for the telesignaling information, telemetering information and alarm information between the start time of one-key sequential control and the first time moment set before the time when the sequential control fails.

10. The substation one-key sequential control accident recall system according to claim 6, characterized in that: The processing unit is also used to store the real-time library section file of the sequential control interval failure moment when the one-key sequential control operation fails; the display unit is also used to display the real-time library section file of the sequential control interval failure moment stored by the processing unit when the one-key sequential control accident location is triggered.

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