A method and apparatus for operating a device trip alarm

Abstract

The application discloses a kind of operating equipment trip alarm method and device, wherein, method includes: step S1, the alarm signal of OCS system is automatically monitored, it is judged whether there is protection action class signal, or switch action class signal, or total station accident total class signal;Step S2, the total station accident total class signal, protection action class signal, switch action class signal monitored are scored, whether substation appears operating equipment trip is judged according to total integral;Step S3, when appearing operating equipment trip, trip information is displayed in alarm interface, and alarm is started.The application automatically shields a large number of useless alarm signals, automatically detects effective trip alarm, and sends alarm after detecting operating equipment trip, and duty personnel does not need to keep monitoring interface all the time, and one person can be saved to carry out other work.

Description

Technical Field

[0001] This invention relates to the field of electrical engineering technology, and specifically to a method and device for alarming tripping of operating equipment. Background Technology

[0002] Equipment tripping is an emergency event in the power system that needs to be handled promptly. The handling time mainly includes two parts: (1) discovering the tripping event; and (2) handling the tripping event. Currently, the discovery of tripping events mainly relies on the on-duty personnel to monitor the screen 24 hours a day. The OCS system has access to all alarm signals of the managed substations, and the alarm information is highly real-time and comprehensive. However, due to the large number of substations connected to the OCS system and the large amount of debugging work every day, the signal monitoring interface is constantly refreshed with various debugging signals, jitter signals, etc., which are not signals reflecting the status of the operating equipment. The actual proportion of tripping signals of operating equipment is very small, which seriously interferes with the monitoring of tripping signals. Equipment tripping is an unpredictable sudden event. It may trip several times a day, or it may not trip once in a month. In order to avoid missing signals, an on-duty personnel is required to monitor 24 hours a day without interruption, regardless of the circumstances. After the monitoring discovers the tripping signal, the on-duty personnel also need to check the equipment operating status, remote signaling information, etc. to make a comprehensive judgment on whether it is an operating equipment trip. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method and device for alarming tripping of operating equipment, so as to improve the monitoring efficiency of tripping of operating equipment and reduce manpower expenditure.

[0004] To solve the above-mentioned technical problems, the present invention provides a method for alarming tripping of operating equipment, comprising:

[0005] Step S1: Automatically monitor the alarm signals of the OCS system to determine whether there are protection action signals, switch action signals, or station-wide accident signals.

[0006] Step S2: Score the total fault signals, protection action signals, and switch action signals detected throughout the station, and determine whether the substation has experienced equipment tripping based on the total score;

[0007] Step S3: When it is determined that a tripping of operating equipment has occurred, the tripping information is displayed on the alarm interface and the alarm is activated.

[0008] Furthermore, before step S1, there is also an initialization step S0, which initializes the scores k1, k2, and k3 of protection action signals, switch action signals, and total station accident signals to 0, and sets the maintenance coefficients r1 and r2 to 1.

[0009] Further, step S1 specifically includes:

[0010] The signals in the OCS system are monitored in real time. If a signal contains keywords related to protection actions but does not contain keywords related to exclusion, the signal is determined to be a protection action signal and is scored as 1 point. The score for protection action signals is k1 = 1.

[0011] The signals in the OCS system are monitored in real time. If a signal contains a switch action keyword but does not contain an exclusion keyword, the signal is determined to be a switch action signal and is scored as 1 point. The score for a switch action signal is k2 = 1.

[0012] If there is a station-wide accident category signal in the OCS system, it is scored as 1 point. The total score for the station-wide accident category signal is k3 = 1.

[0013] Furthermore, step S2 also includes: detecting whether the signal contains a maintenance mark, and detecting the operating status of the disconnect switches on both sides.

[0014] Furthermore, whether the detection signal includes a maintenance indicator specifically includes:

[0015] Determine whether the option to detect the "maintenance" flag has been selected. If not, all signals are valid and the first coefficient r1 of the maintenance flag bit is 1.

[0016] If the option to detect the "maintenance" flag is selected, then the signal is checked to see if it contains the "maintenance" flag. If there is no "maintenance" flag, the signal is an operating interval signal, and the first coefficient r1 of the maintenance flag bit is 1. If it contains the "maintenance" flag, the signal is a maintenance equipment signal, and the first coefficient r1 of the maintenance flag bit is 0.

[0017] Furthermore, the detection of the operating status of the disconnect switches on both sides specifically includes:

[0018] Determine whether the option to detect the operating status of the disconnectors on both sides has been selected. If not, all bays are operating bays, and the second coefficient r2 of the maintenance flag is 1.

[0019] If the operation status of the disconnectors on both sides is selected, then the operation status of the disconnectors on both sides of the switch to which the signal belongs is checked. If one of the disconnectors on both sides of the switch is in the open position, then the switch is judged to be in the maintenance state, and the second coefficient r2 of the maintenance flag is 0. If both are in the closed position, then the second coefficient r2 of the maintenance flag is 1.

[0020] Furthermore, step S2 also includes: calculating the total integral k based on the scores k1 of protection action signals, k2 of switch action signals, k3 of total station accident signals, and the first coefficient r1 and the second coefficient r2 of the maintenance flag bit: k = r1 × r2 × (k1 + k2) + k3.

[0021] Furthermore, in step S2, determining whether a substation has experienced equipment tripping based on the total integral specifically includes:

[0022] Determine if the calculated total integral k is greater than 1. If it is not greater than 1, it means that the signal is not a trip signal of the operating interval, and the trip alarm process of the equipment in this operation ends directly.

[0023] If the calculated total integral k is greater than 1, it indicates that the operating bay has issued at least two of the three types of signals: protection action, switch change, and station-wide accident, indicating that the signal is a trip signal of the operating bay.

[0024] The present invention also provides a trip alarm device for operating equipment, comprising:

[0025] The signal monitoring module is used to automatically monitor the alarm signals of the OCS system and determine whether there are protection action signals, switch action signals, or overall station accident signals.

[0026] The equipment tripping judgment module is used to score the total types of fault signals, protection action signals, and switch action signals monitored throughout the station, and to determine whether the substation has experienced equipment tripping based on the total score.

[0027] The alarm module is used to display trip information on the alarm interface and activate the alarm when it is determined that the operating equipment has tripped.

[0028] Furthermore, the trip judgment module of the operating equipment is also used to: calculate the total integral k based on the score k1 of the protection action signal, the score k2 of the switch action signal, the score k3 of the total station accident signal, and the first coefficient r1 and the second coefficient r2 of the maintenance flag bit: k = r1 × r2 × (k1 + k2) + k3.

[0029] Implementing this invention has the following advantages: it automatically filters out a large number of useless alarm signals, automatically detects valid trip alarms, and issues an alarm after detecting that the operating equipment has tripped. On-duty personnel do not need to keep staring at the monitoring interface, which can save one person to carry out other work. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a flowchart illustrating a tripping alarm method for operating equipment according to an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram illustrating the specific process of a trip alarm method for operating equipment according to an embodiment of the present invention. Detailed Implementation

[0033] The following description of the embodiments is taken with reference to the accompanying drawings, which illustrate specific embodiments in which the invention can be implemented.

[0034] Please refer to Figure 1 As shown, Embodiment 1 of the present invention provides a method for alarming tripping of operating equipment, comprising:

[0035] Step S1: Automatically monitor the alarm signals of the OCS system to determine whether there are protection action signals, switch action signals, or station-wide accident signals.

[0036] Step S2: Score the total fault signals, protection action signals, and switch action signals detected throughout the station, and determine whether the substation has experienced equipment tripping based on the total score;

[0037] Step S3: When it is determined that a tripping of operating equipment has occurred, the tripping information is displayed on the alarm interface and the alarm is activated.

[0038] This invention automatically detects trip alarm signals by analyzing and processing remote signaling signals in the OCS (Optical Control System), and then determines whether the equipment to which the alarm signal belongs was in operation before the trip. If it was in operation, it is determined that the operating equipment has tripped, the trip information is displayed on the alarm interface, and an audible alarm is activated to remind the operator to take trip measures.

[0039] Specifically, please combine Figure 2 As shown, before step S1, there is also an initialization step S0, which initializes the scores k1, k2, and k3 of the total station accident signals, protection action signals, and switch action signals to 0, and sets the maintenance coefficients r1 and r2 to 1.

[0040] Step S1 monitors protection action signals, switch action signals, or overall station fault signals, as follows:

[0041] (11) Monitor whether there are protective action signals in the OCS system.

[0042] If a signal in the OCS system is monitored in real time and contains keywords related to protection actions but not keywords related to exclusion, the signal is determined to be a protection action signal and is scored as 1 point, k1 = 1.

[0043] Considering the potential for inconsistencies in historical signal names, it is necessary to first review all historical signals and compile a list of keywords and exclusion keywords. Keyword categories for protection actions include "Action," "Trip," and "Interval Fault Total." Exclusion keywords vary depending on the keyword. For example, the exclusion keywords for the keyword "Action" include "Air Circuit Breaker," "Air Switch," "Auxiliary Switch," "Power Supply," and "DC." That is, if a signal name contains "Action," it is considered a protection action signal only if it does not contain any of the exclusion keywords "Air Circuit Breaker," "Air Switch," "Auxiliary Switch," "Power Supply," or "DC." Similarly, the exclusion keywords for the keyword "Trip" include "Motor," "Motor," "Waveform Recorder," and "AC." During a trip, there is often more than one protection action signal. If the same device has one or more protection action signals, each is counted as one point, preventing signal omissions.

[0044] (12) Monitor whether there are switch action signals in the OCS system.

[0045] In the OCS system signals, it is necessary to check for switch action signals, mainly referring to the opening and closing of switches and the signals generated during the opening and closing process. These include signals containing keywords such as "switch + opening", "switch + transition", "control + disconnection + power failure", and "control + return + disconnection". Similar to protection action signals, due to the lack of standardization in historical signals, it is also necessary to sort through all historical signals and filter out all signals that can reflect the switch action process. At the same time, to avoid irrelevant signals being filtered out, exclusion keywords are also set. For example, the exclusion keywords corresponding to the keyword "control + return + disconnection" are "metering", "switching", "power supply", "neutral point", etc. That is, only when the signal name contains "control + return + disconnection" but does not contain "metering", "switching", "power supply", "neutral point", etc., is it a valid switch action signal, which is scored as 1 point, k2=1; if multiple signals meet the requirements, a maximum of 1 point is also scored.

[0046] (13) Monitor whether there is a station-wide accident category signal in the OCS system.

[0047] If the OCS system detects a station-wide accident category signal, it scores 1 point, and k3 = 1. Depending on the actual situation, the accident category signal may be disregarded.

[0048] It should be noted that protection action signals, switch action signals, and overall station fault signals must all occur simultaneously within one minute to be considered a single tripping event, allowing k1, k2, and k3 to be added together. Furthermore, protection action signals, switch action signals, and overall station fault signals must originate from the same substation; and protection action signals and switch action signals must originate from the same device.

[0049] Step S2 determines whether the substation has experienced equipment tripping based on the score. It also requires (21) checking whether the signal contains a maintenance sign and (22) checking the operating status of the disconnect switches on both sides.

[0050] (21) First, determine whether the option to detect the "maintenance" flag is selected. If not selected, all signals are valid and the first coefficient r1 of the maintenance flag bit is 1. That is, all signals are signals of operating equipment regardless of whether there is a "maintenance" flag. If the option to detect the "maintenance" flag is selected, then check whether the signal contains the "maintenance" flag. If there is no "maintenance" flag, the signal is an operating interval signal and the first coefficient r1 of the maintenance flag bit is 1. If there is a "maintenance" flag, the signal is a maintenance equipment signal and the first coefficient r1 of the maintenance flag bit is 0.

[0051] (22) First, determine whether the option to detect the operating status of the disconnectors on both sides is selected. If not selected, all bays are operating bays and the second coefficient r2 of the maintenance flag is 1. If the option to detect the operating status of the disconnectors on both sides is selected, then detect the operating status of the disconnectors on both sides of the bay to which the signal belongs. If one of the disconnectors on both sides of the switch is in the open position, then the switch is determined to be in maintenance status and the second coefficient r2 of the maintenance flag is 0. If all of them are in the closed position, then the second coefficient r2 of the maintenance flag is 1.

[0052] Next, calculate the total integral k: k = r1 × r2 × (k1 + k2) + k3. Since the total category signal of the entire station is the signal of the entire station and does not belong to a specific interval, it is not affected by the maintenance sign and the operating status.

[0053] Determine whether k is greater than 1 based on the calculated total integral. If it is not greater than 1, it means that it is not a trip signal of the operating interval and no attention is needed. The trip alarm process of the operating equipment ends directly.

[0054] If k>1, meaning the operating bay has issued at least two of the three types of signals: protection action, switch change, and station-wide accident signal, it indicates that the signal is a trip signal for the operating bay and requires attention and handling by the on-duty personnel.

[0055] Based on the above judgment, step S3 displays the trip alarm information on the main interface and starts the alarm; the alarm can be in the form of sound and light; after the on-duty personnel see the alarm information or hear the alarm sound, they need to manually confirm the trip alarm signal; if the on-duty personnel do not confirm, the alarm information in the window cannot be reset and the alarm sound cannot be stopped until the on-duty personnel confirm it manually, then the alarm resets and the alarm sound stops, and the trip alarm of the operating equipment ends.

[0056] Corresponding to the aforementioned method for alarming tripping of operating equipment in Embodiment 1 of the present invention, Embodiment 2 of the present invention further provides an alarming device for tripping of operating equipment, comprising:

[0057] The signal monitoring module is used to automatically monitor the alarm signals of the OCS system and determine whether there are protection action signals, switch action signals, or overall station accident signals.

[0058] The equipment tripping judgment module is used to score the total types of fault signals, protection action signals, and switch action signals monitored throughout the station, and to determine whether the substation has experienced equipment tripping based on the total score.

[0059] The alarm module is used to display trip information on the alarm interface and activate the alarm when it is determined that the operating equipment has tripped.

[0060] Furthermore, the trip judgment module of the operating equipment is also used to: calculate the total integral k based on the score k1 of the protection action signal, the score k2 of the switch action signal, the score k3 of the total station accident signal, and the first coefficient r1 and the second coefficient r2 of the maintenance flag bit: k = r1 × r2 × (k1 + k2) + k3.

[0061] For the working principle and process of this embodiment, please refer to the description of the aforementioned Embodiment 1 of the present invention, which will not be repeated here.

[0062] As can be seen from the above description, compared with the prior art, the beneficial effects of the present invention are: automatically filtering out a large number of useless alarm signals, automatically detecting valid trip alarms, and issuing an alarm after detecting that the operating equipment has tripped. The on-duty personnel do not need to keep staring at the monitoring interface, which can save one person to carry out other work.

[0063] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for alarming tripping of operating equipment, characterized in that, include: Step S1: Automatically monitor the alarm signals of the OCS system. If the signal contains protection action keywords but does not contain exclusion keywords, the signal is determined to be a protection action signal, and the protection action signal score is k1=1. If the signal contains switch action keywords but does not contain exclusion keywords, the signal is determined to be a switch action signal, and the switch action signal score is k2=1. If there is a station-wide accident general category signal, the station-wide accident general category signal score is k3=1. Step S2: Score the monitored station-wide accident signals, protection action signals, and switch action signals. Based on the scores k1 for protection action signals, k2 for switch action signals, and k3 for station-wide accident signals, as well as the first coefficient r1 and the second coefficient r2 of the maintenance flag, calculate the total integral k: k = r1 × r2 × (k1 + k2) + k3. Determine if the calculated total integral k is greater than 1. If it is not greater than 1, it means the signal is not a trip signal of the operating bay, and the trip alarm process of the current operating equipment ends directly. If the calculated total integral k is greater than 1, it indicates that the operating bay has issued at least two of the three types of signals: protection action, switch change, and station-wide accident signals, indicating that the signal is a trip signal of the operating bay. Step S3: When it is determined that a tripping of operating equipment has occurred, the tripping information is displayed on the alarm interface and the alarm is activated.

2. The method for alarming tripping of operating equipment according to claim 1, characterized in that, Before step S1, there is also an initialization step S0, which initializes the scores k1, k2, and k3 of protection action signals, switch action signals, and total station accident signals to 0, and sets the maintenance coefficients r1 and r2 to 1.

3. The method for alarming tripping of operating equipment according to claim 2, characterized in that, Step S2 further includes: detecting whether the signal contains a maintenance mark, and detecting the operating status of the disconnectors on both sides.

4. The method for alarming tripping of operating equipment according to claim 3, characterized in that, Whether the detection signal contains a maintenance indicator specifically includes: Determine whether the option to detect the "maintenance" flag has been selected. If not, all signals are valid and the first coefficient r1 of the maintenance flag bit is 1. If the option to detect the "maintenance" flag is selected, then the signal is checked to see if it contains the "maintenance" flag. If there is no "maintenance" flag, the signal is an operating interval signal, and the first coefficient r1 of the maintenance flag bit is 1. If it contains the "maintenance" flag, the signal is a maintenance equipment signal, and the first coefficient r1 of the maintenance flag bit is 0.

5. The method for alarming tripping of operating equipment according to claim 4, characterized in that, The specific steps for detecting the operating status of the disconnect switches on both sides include: Determine whether the option to detect the operating status of the disconnectors on both sides has been selected. If not, all bays are operating bays, and the second coefficient r2 of the maintenance flag is 1. If the operation status of the disconnectors on both sides is selected, then the operation status of the disconnectors on both sides of the switch to which the signal belongs is checked. If one of the disconnectors on both sides of the switch is in the open position, then the switch is judged to be in the maintenance state, and the second coefficient r2 of the maintenance flag is 0. If both are in the closed position, then the second coefficient r2 of the maintenance flag is 1.

6. A trip alarm device for operating equipment, characterized in that, include: The signal monitoring module is used to automatically monitor alarm signals of the OCS system. If the signal contains protection action keywords but not exclusion keywords, it is determined to be a protection action signal, and the protection action signal score is k1=1. If the signal contains switch action keywords but not exclusion keywords, it is determined to be a switch action signal, and the switch action signal score is k2=1. If there is a station-wide accident general category signal, the station-wide accident general category signal score is k3=1. The trip judgment module for operating equipment is used to score the monitored overall station fault signals, protection action signals, and switch action signals. Based on the scores k1 for protection action signals, k2 for switch action signals, and k3 for overall station fault signals, as well as the first coefficient r1 and the second coefficient r2 of the maintenance flag, the total integral k is calculated: k = r1 × r2 × (k1 + k2) + k3. The module then determines whether the calculated total integral k is greater than 1. If it is not greater than 1, it indicates that the signal is not a trip signal for the operating bay, and the trip alarm process for this operating equipment ends directly. If the calculated total integral k is greater than 1, it indicates that the operating bay has issued at least two of the three types of signals: protection action, switch change, and overall station fault, indicating that the signal is a trip signal for the operating bay. The alarm module is used to display trip information on the alarm interface and activate the alarm when it is determined that the operating equipment has tripped.

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