CN112927481A - Alarm filtering method, system, medium and electronic equipment for nuclear power plant - Google Patents
Alarm filtering method, system, medium and electronic equipment for nuclear power plant Download PDFInfo
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- CN112927481A CN112927481A CN202110084579.4A CN202110084579A CN112927481A CN 112927481 A CN112927481 A CN 112927481A CN 202110084579 A CN202110084579 A CN 202110084579A CN 112927481 A CN112927481 A CN 112927481A
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- alarm
- power plant
- alarm event
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Abstract
The invention discloses an alarm filtering method, system, medium and electronic equipment for a nuclear power plant, which are suitable for the function alarm of equipment in the nuclear power plant, and the method comprises the following steps: s1: establishing a causal relationship among all alarm events in advance; s2: after the alarm event is received, analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event; s3: all reason alarm events are retained after analysis processing. Under transient or accident conditions, the method can effectively reduce the number of intermediate alarms of the nuclear power plant, keep useful alarms as little as possible, reduce the workload of an operator, quickly locate fault points, help the operator to identify and judge common mode faults and multiple independent faults, help the operator to effectively control the unit as early as possible, and prevent events from deteriorating.
Description
Technical Field
The invention relates to the technical field of nuclear power plant alarm, in particular to an alarm filtering method, system, medium and electronic equipment for a nuclear power plant.
Background
The nuclear power plant alarm is used as warning information with an acousto-optic reminding function and is used for informing an operator of deviation of power plant state parameters from a normal range, equipment faults, equipment state changes or deviation from normal operation to remind the operator of abnormal unit states, and the operator is required to take appropriate processing actions through alarm prompting to stabilize or guide the unit to a controllable state.
In a nuclear power station, when a state parameter deviates from a normal range or the state of equipment changes, an alarm signal is sent out, a plurality of correlated alarms are generated under transient or accident conditions, a series of correlated alarms are caused by the change of one parameter or the function state of the equipment, dozens of correlated alarms are likely to appear simultaneously, the quantity is large, the alarms are disordered, an operator needs to analyze dozens of alarms to determine a fault point, and the operator is very unfavorable for searching the fault point.
Although the existing alarm inhibiting mode with the same function is adopted, the inhibiting alarm function is mainly used for high-state inhibiting low-state alarm (such as high-liquid-level alarm inhibiting high alarm) with the same function, most of alarms cannot be analyzed, only a few alarms are analyzed, and the method has great limitation.
Disclosure of Invention
The invention aims to solve the technical problem of providing an alarm filtering method, an alarm filtering system, a medium and electronic equipment for a nuclear power plant aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for filtering the alarm of the nuclear power plant is suitable for the function alarm of equipment of the nuclear power plant and comprises the following steps:
s1: establishing a causal relationship among all alarm events in advance;
s2: after the alarm event is received, analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
s3: all reason alarm events are retained after analysis processing.
Preferably, in the alarm filtering method for a nuclear power plant according to the present invention, before the step S1, the method further includes:
s0: the method comprises the steps of discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions, and determining all independent alarm events.
Preferably, in the alarm filtering method of a nuclear power plant according to the present invention, the plant functions include water level, flow rate, pressure, and temperature.
Preferably, in the alarm filtering method for a nuclear power plant according to the present invention, the step S1 includes:
the method comprises the steps of obtaining the function state dependency relationship when at least two equipment functions are connected, and establishing the causal relationship between the alarm events of the at least two equipment functions.
Preferably, in the alarm filtering method for a nuclear power plant according to the present invention, the analyzing process in step S3 includes:
and if the unknown alarm event is obtained, updating the unknown alarm event into the reason alarm event of the function alarm.
Preferably, in the alarm filtering method for a nuclear power plant according to the present invention, the analyzing process of step S3 includes:
and if an independent result alarm event is obtained, updating the result alarm event into a reason alarm event of the function alarm.
The invention also constructs an alarm filtering system of the nuclear power plant, which is suitable for the function alarm of the nuclear power plant equipment and comprises the following components:
the causal relationship module is used for establishing causal relationships among all the alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events after receiving the alarm event to obtain at least one of a reason alarm event, a result alarm event and an unknown alarm event;
and the reservation module is used for reserving all reason alarm events after analysis and processing.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the system further includes:
and the discrete module is used for discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions and determining all independent alarm events.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the plant functions include water level, flow rate, pressure, and temperature.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the causal relationship module includes:
the acquisition module is used for acquiring the function state dependency relationship when at least two equipment functions are connected;
an establishing module for establishing a causal relationship between the alarm events of the at least two device functions.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the retention module includes:
and the unknown alarm event updating module is used for updating the unknown alarm event into the reason alarm event of the function alarm if the unknown alarm event is obtained.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the retention module includes:
and the result alarm event updating module is used for updating the result alarm event into the reason alarm event of the function alarm if the independent result alarm event is obtained.
The invention also constitutes a computer-readable medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the method of alarm filtering of a nuclear power plant according to any of the preceding claims.
The present invention also constructs an electronic apparatus including:
one or more processors;
a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the alarm filtering method of the nuclear power plant as recited in any of the above.
By implementing the invention, the following beneficial effects are achieved:
under transient or accident conditions, the method can effectively reduce the number of intermediate alarms of the nuclear power plant, keep useful alarms as little as possible, reduce the workload of an operator, facilitate the analysis of the alarms by the operator, quickly locate fault points, help the operator to identify and judge common mode faults and multiple independent faults, help the operator to effectively control the unit as early as possible, and prevent events from deteriorating.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of an alarm filtering method of a nuclear power plant of the present invention;
FIG. 2 is a block diagram of an alarm filtering system of a nuclear power plant of the present invention;
FIG. 3 is a first schematic diagram of the alarm logic of the present invention;
FIG. 4 is a second schematic of the alarm logic of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
It should be noted that the flow charts shown in the drawings are only exemplary and do not necessarily include all the contents and operations/steps, nor do they necessarily have to be executed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
In a first embodiment, as shown in fig. 1, the present invention constructs a method for filtering an alarm of a nuclear power plant, which is suitable for a function alarm of equipment of the nuclear power plant, and comprises the following steps:
step S1: establishing a causal relationship among all alarm events in advance;
step S2: after the alarm event is received, analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
step S3: and (5) after analysis and processing, reserving the processed reason alarm event.
In this embodiment, step S1 is preceded by:
step S0: the method comprises the steps of discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions, and determining all independent alarm events. In some embodiments, the device functions include water level, flow, pressure, and temperature, among others. The functional state can be generally discretized into high, normal and low states, corresponding to alarms (high, normal and low) water level, flow, pressure temperature, etc. The functions can be dispersed into more detailed alarm states according to actual conditions, for example, the alarm states comprise high, low and the like.
In the present embodiment, step S1 includes: and acquiring the function state dependency relationship when the at least two equipment functions are connected, and establishing the causal relationship between the alarm events of the at least two equipment functions. And determining the causal relationship between the alarm events, and determining the function state dependency relationship when at least two equipment functions are connected based on the principles of energy conservation and material conservation, thereby establishing the causal relationship between the alarm events of at least two equipment functions.
In this embodiment, the cause alarm event is a cause of the other alarm events, the result alarm event is a result of the other alarm events, and the unknown alarm event is an alarm event that is independent of, i.e., unrelated to, the other alarm events. The fault point can be quickly positioned through alarm classification, and the control of the unit is convenient.
In the present embodiment, the analysis processing in step S3 includes: and if the unknown alarm event is obtained, updating the unknown alarm event into the reason alarm event of the function alarm, and further keeping all reason alarms.
The analysis processing in step S3 may further include: and if an independent result alarm event is obtained, namely no reason alarm event exists, updating the result alarm event into the reason alarm event of the function alarm, and further keeping all reason alarms.
For example, two correlation events AB, where a was analyzed beforehand for the cause of B, in the actual alarm analysis several cases, AB occurred, a was the cause, and B was the result. A occurred, B did not occur, and A was the cause. A does not occur, B does occur, B is the cause. No AB occurred and no analysis was used. By applying the principle, direct correlation events are analyzed one by one, result events can be eliminated, and reason events are reserved.
Also for example, fig. 3 shows alarm logic between individual reactors in a nuclear power plant, where the symbol indicated by F1 represents a source, indicating the ability of a physical component to generate substances and energy. The arrow symbols indicated by F2 represent transmissions, indicating the ability of a physical component to transmit a stream of matter, energy and information. The symbol denoted by F3 represents a storage function, indicating the ability of a physical component to store matter and energy.
For another example, fig. 4 shows the association relationship between the high (H), medium (OK) and low (L) traffic of each component (F21, F22, F23), which is not described herein again.
In a second embodiment, as shown in fig. 2, the present invention constructs an alarm filtering system for a nuclear power plant, adapted for a nuclear power plant equipment function alarm, comprising:
the causal relationship module is used for establishing causal relationships among all the alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events after receiving the alarm event to obtain at least one of a reason alarm event, a result alarm event and an unknown alarm event;
and the reservation module is used for reserving all reason alarm events after analysis and processing.
In this embodiment, the system further includes: and the discrete module is used for discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions and determining all independent alarm events. In some embodiments, the device functions include water level, flow, pressure, and temperature, among others. The functional state can be generally discretized into high, normal and low states, corresponding to alarms (high, normal and low) water level, flow, pressure temperature, etc. The functions can be dispersed into more detailed alarm states according to actual conditions, for example, the alarm states comprise high, low and the like.
In this embodiment, the causal relationship module includes:
the acquisition module is used for acquiring the function state dependency relationship when at least two equipment functions are connected;
an establishing module for establishing a causal relationship between alarm events of at least two device functions.
The causal relationship between the alarm events is determined, and the function state dependency relationship when at least two equipment functions are connected can be determined based on the energy conservation and material conservation principles, so that the causal relationship between the alarm events of the at least two equipment functions is established.
In this embodiment, the cause alarm event is a cause of the other alarm events, the result alarm event is a result of the other alarm events, and the unknown alarm event is an alarm event that is independent of, i.e., unrelated to, the other alarm events. The fault point can be quickly positioned through alarm classification, and the control of the unit is convenient.
In this embodiment, the reservation module includes: and the unknown alarm event updating module is used for updating the unknown alarm event into the reason alarm event of the function alarm if the unknown alarm event is obtained.
The reservation module further comprises: and the result alarm event updating module is used for updating the result alarm event into the reason alarm event of the function alarm if the independent result alarm event is obtained, namely the reason alarm event does not exist.
For example, two correlation events AB, where a was analyzed beforehand for the cause of B, in the actual alarm analysis several cases, AB occurred, a was the cause, and B was the result. A occurred, B did not occur, and A was the cause. A does not occur, B does occur, B is the cause. No AB occurred and no analysis was used. By applying the principle, direct correlation events are analyzed one by one, result events can be eliminated, and reason events are reserved.
In a third embodiment, the invention also provides a computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the method for alarm filtering of a nuclear power plant according to the first embodiment.
In a fourth embodiment, the present invention also provides an electronic apparatus comprising: one or more processors; a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the alarm filtering method of the nuclear power plant of the first embodiment.
By implementing the invention, the following beneficial effects are achieved:
under transient or accident conditions, the method can effectively reduce the number of intermediate alarms of the nuclear power plant, keep useful alarms as little as possible, reduce the workload of an operator, facilitate the analysis of the alarms by the operator, quickly locate fault points, help the operator to identify and judge common mode faults and multiple independent faults, help the operator to effectively control the unit as early as possible, and prevent events from deteriorating.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (14)
1. An alarm filtering method for a nuclear power plant is suitable for a nuclear power plant equipment function alarm, and is characterized by comprising the following steps:
s1: establishing a causal relationship among all alarm events in advance;
s2: after the alarm event is received, analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
s3: all reason alarm events are retained after analysis processing.
2. The alarm filtering method for a nuclear power plant according to claim 1, wherein the step S1 is preceded by:
s0: the method comprises the steps of discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions, and determining all independent alarm events.
3. The nuclear power plant alarm filtering method of claim 2, wherein the equipment functions include water level, flow, pressure, and temperature.
4. The alarm filtering method of a nuclear power plant according to claim 1, wherein the step S1 includes:
the method comprises the steps of obtaining the function state dependency relationship when at least two equipment functions are connected, and establishing the causal relationship between the alarm events of the at least two equipment functions.
5. The alarm filtering method for a nuclear power plant according to claim 1, wherein the analyzing process in the step S3 includes:
and if the unknown alarm event is obtained, updating the unknown alarm event into the reason alarm event of the function alarm.
6. The alarm filtering method for a nuclear power plant according to claim 1, wherein the analyzing process of the step S3 includes:
and if an independent result alarm event is obtained, updating the result alarm event into a reason alarm event of the function alarm.
7. The utility model provides an alarm filtering system of nuclear power plant, is applicable to nuclear power plant equipment function and reports to the police, its characterized in that includes:
the causal relationship module is used for establishing causal relationships among all the alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the pre-established causal relationship among all the alarm events after receiving the alarm event to obtain at least one of a reason alarm event, a result alarm event and an unknown alarm event;
and the reservation module is used for reserving all reason alarm events after analysis and processing.
8. The nuclear power plant alarm filtering system of claim 7, further comprising:
and the discrete module is used for discretizing the function state of the equipment in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm events of other equipment functions and determining all independent alarm events.
9. The nuclear power plant alarm filtering system of claim 8, wherein the equipment functions include water level, flow, pressure, and temperature.
10. The nuclear power plant alarm filtering system of claim 7, wherein the causal relationship module comprises:
the acquisition module is used for acquiring the function state dependency relationship when at least two equipment functions are connected;
an establishing module for establishing a causal relationship between the alarm events of the at least two device functions.
11. The nuclear power plant alarm filtering system of claim 7, wherein the retention module comprises:
and the unknown alarm event updating module is used for updating the unknown alarm event into the reason alarm event of the function alarm if the unknown alarm event is obtained.
12. The nuclear power plant alarm filtering system of claim 7, wherein the retention module comprises:
and the result alarm event updating module is used for updating the result alarm event into the reason alarm event of the function alarm if the independent result alarm event is obtained.
13. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of alarm filtering of a nuclear power plant according to any one of claims 1 to 6.
14. An electronic device, comprising:
one or more processors;
a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the alarm filtering method of the nuclear power plant of any of claims 1-6.
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