CN112927481B - Nuclear power plant alarm filtering method, system, medium and electronic equipment - Google Patents
Nuclear power plant alarm filtering method, system, medium and electronic equipment Download PDFInfo
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- CN112927481B CN112927481B CN202110084579.4A CN202110084579A CN112927481B CN 112927481 B CN112927481 B CN 112927481B CN 202110084579 A CN202110084579 A CN 202110084579A CN 112927481 B CN112927481 B CN 112927481B
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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, an alarm filtering system, a medium and electronic equipment of a nuclear power plant, which are suitable for functional alarm of the nuclear power plant equipment, wherein the method comprises the following steps: s1: pre-establishing causal relationships among all alarm events; s2: after receiving the alarm event, analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all pre-established alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event; s3: and (5) retaining all the reason alarm events through analysis and processing. The invention can effectively reduce the number of intermediate alarms of the nuclear power plant under transient or accident working conditions, keep useful alarms as few as possible, reduce the workload of operators, quickly locate fault points, help operators identify and judge common mode faults and multiple independent faults, help operators to effectively control the unit as early as possible, and prevent event deterioration.
Description
Technical Field
The invention relates to the technical field of nuclear power plant alarm, in particular to an alarm filtering method, an alarm filtering system, a medium and electronic equipment of a nuclear power plant.
Background
The nuclear power plant alarm is used as a warning message with an audible and visual reminding function and is used for informing operators that the power plant state parameters deviate from a normal range, equipment fails, equipment state changes or are about to deviate from normal operation, so as to remind operators of abnormal unit states, and the operators are required to take proper processing actions through alarm prompt, so that the unit is stabilized or guided to a controllable state.
In a nuclear power station, when a state parameter deviates from a normal range or equipment state changes, alarm signals are sent out, and a series of associated alarms are triggered by the change of one parameter or equipment functional state under transient or accident working conditions, so that dozens of associated alarms can occur simultaneously, the quantity is relatively large, the quantity is relatively messy, an operator needs to analyze dozens of alarms to determine fault points, and the operator is very unfavorable for finding the fault points.
Although some alarm suppression modes with the same functions are adopted in the prior art, the alarm suppression function is mainly used for high-state suppression low-state alarms with the same functions (such as liquid level high alarm suppression high alarm), most alarms cannot be analyzed, only a few alarms are analyzed, and the limitation is large.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an alarm filtering method, an alarm filtering system, an alarm filtering medium and electronic equipment of a nuclear power plant.
The technical scheme adopted for solving the technical problems is as follows: a method for filtering the alarm of a nuclear power plant is constructed, which is suitable for the functional alarm of the nuclear power plant equipment and comprises the following steps:
s1: pre-establishing causal relationships among all alarm events;
s2: after receiving the alarm event, analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all pre-established alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
s3: and (5) retaining all the reason alarm events through analysis and processing.
Preferably, in the alarm filtering method of 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 equipment function state 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 functions of the apparatus include water level, flow rate, pressure and temperature.
Preferably, in the alarm filtering method of a nuclear power plant according to the present invention, the step S1 includes:
and acquiring the function state dependency relationship when at least two equipment functions are connected, and establishing the causal relationship between alarm events of the at least two equipment functions.
Preferably, in the alarm filtering method of a nuclear power plant according to the present invention, the analyzing in the step S3 includes:
and if the unknown alarm event is obtained, updating the unknown alarm event into a reason alarm event of the function alarm.
Preferably, in the alarm filtering method of a nuclear power plant according to the present invention, the analyzing and processing in step S3 includes:
if the independent result alarm event is obtained, the result alarm event is updated to be the reason alarm event of the function alarm.
The invention also constructs an alarm filtering system of a nuclear power plant, which is suitable for the functional alarm of the nuclear power plant equipment, and comprises the following components:
the causality module is used for establishing causality among all alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all the pre-established alarm events after the alarm event is received, so as to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
and the reservation module is used for reserving all the reason alarm events through analysis and processing.
Preferably, in the alarm filtering system of a nuclear power plant according to the present invention, the system further comprises:
the discrete module is used for discretizing the equipment function state 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 functions of the equipment 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 causality module includes:
the acquisition module is used for acquiring the function state dependency relationship when at least two equipment functions are connected;
and the establishing module is used for establishing the causal relationship between the alarm events of the at least two equipment 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 a 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 a reason alarm event of the function alarm if the independent result alarm event is obtained.
The present invention also constructs a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the alarm filtering method of a nuclear power plant as described in any of the above.
The present invention also constructs an electronic device including:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the alarm filtering method of a nuclear power plant as claimed in any one of the preceding claims.
By implementing the invention, the following beneficial effects are achieved:
the invention can effectively reduce the number of intermediate alarms of the nuclear power plant under transient or accident working conditions, keep useful alarms as few as possible, reduce the workload of operators, facilitate the analysis of the alarms by operators, quickly locate fault points, help operators identify and judge common mode faults and multiple independent faults, help operators to effectively control a unit as early as possible, and prevent event deterioration.
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 in accordance with the present invention;
FIG. 3 is a schematic diagram of alarm logic one of the present invention;
FIG. 4 is a second schematic diagram of alarm logic of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
It should be noted that the flow diagrams depicted in the figures are merely exemplary and do not necessarily include all of the elements and operations/steps, nor are they necessarily performed 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 order of actual execution may be changed according to actual situations.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
In a first embodiment, as shown in fig. 1, the present invention constructs an alarm filtering method for a nuclear power plant, which is suitable for functional alarm of a nuclear power plant device, and includes the following steps:
step S1: pre-establishing causal relationships among all alarm events;
step S2: after receiving the alarm event, analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all pre-established 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 processing, retaining the processed reason alarm event.
In this embodiment, before step S1, the method further includes:
step S0: the method comprises the steps of discretizing the equipment function state 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, temperature, and the like. The functional state can be generally discrete into high, normal and low states, corresponding (high, normal and low) water level, flow, pressure temperature, etc. alarms. The functions can be further dispersed into more detailed alarm states according to actual conditions, such as high-high alarm states, low alarm states and the like.
In this embodiment, step S1 includes: and acquiring the function state dependency relationship when at least two equipment functions are connected, and establishing the causal relationship between alarm events of the at least two equipment functions. Determining causal relationships between alarm events can determine functional status dependencies when at least two device functions are connected based on principles of conservation of energy and conservation of matter, thereby establishing causal relationships between alarm events for at least two device functions.
In this embodiment, the cause alarm event is the cause of the other alarm event, the result alarm event is the result of the other alarm event, and the unknown alarm event is an alarm event independent of the other alarm event, i.e. not associated with the other alarm event. The fault point can be rapidly positioned through alarm classification, and the control of the unit is facilitated.
In the present embodiment, the analysis processing in step S3 includes: if the unknown alarm event is obtained, updating the unknown alarm event into the reason alarm event of the function alarm, and further reserving all reason alarms.
The analysis processing in this step S3 may further include: if an independent result alarm event is obtained, namely, when no reason alarm event exists, the result alarm event is updated to be the reason alarm event of the function alarm, and all reason alarms are reserved.
For example, two related events AB, where a is the cause of B and a is the result, are analyzed in advance, and in actual alarm analysis, several cases occur, AB. A occurs, B does not occur, and A is the cause. A does not occur, B occurs, and B is the cause. AB did not occur and was not analyzed. By applying the principle, the direct association events are analyzed one by one, two by two, so that the result events can be eliminated, and the reason events can be reserved.
Also for example, FIG. 3, which shows alarm logic between individual reactive devices in a nuclear power plant, wherein the symbol indicated by F1 represents a source, indicating the ability of a physical component to produce matter and energy. The arrow symbols indicated by F2 represent the transmission, representing the ability of the physical component to transmit substances, energy and information flow. The symbol indicated by F3 represents a storage function, representing the ability of the physical component to store matter and energy.
For example, fig. 4 shows the association between the high (H), medium (OK), and low (L) flows on each of the components (F21, F22, and F23), and will not be described again.
A second embodiment, as shown in fig. 2, the present invention constructs an alarm filtering system of a nuclear power plant, which is suitable for functional alarm of equipment of the nuclear power plant, comprising:
the causality module is used for establishing causality among all alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all the pre-established alarm events after the alarm event is received, so as to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
and the reservation module is used for reserving all the reason alarm events through analysis and processing.
In this embodiment, the system further includes: the discrete module is used for discretizing the equipment function state 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, temperature, and the like. The functional state can be generally discrete into high, normal and low states, corresponding (high, normal and low) water level, flow, pressure temperature, etc. alarms. The functions can be further dispersed into more detailed alarm states according to actual conditions, such as high-high alarm states, low alarm states 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;
and the establishing module is used for establishing the causal relationship between the alarm events of at least two equipment functions.
Wherein, the causal relationship between alarm events is determined, and the function state dependency relationship when at least two device functions are connected can be determined based on the principles of energy conservation and material conservation, so as to establish the causal relationship between the alarm events of at least two device functions.
In this embodiment, the cause alarm event is the cause of the other alarm event, the result alarm event is the result of the other alarm event, and the unknown alarm event is an alarm event independent of the other alarm event, i.e. not associated with the other alarm event. The fault point can be rapidly positioned through alarm classification, and the control of the unit is facilitated.
In this embodiment, the reservation module includes: and the unknown alarm event updating module is used for updating the unknown alarm event into a reason alarm event of the function alarm if the unknown alarm event is obtained.
The reservation module further 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, namely, if the reason alarm event does not exist.
For example, two related events AB, where a is the cause of B and a is the result, are analyzed in advance, and in actual alarm analysis, several cases occur, AB. A occurs, B does not occur, and A is the cause. A does not occur, B occurs, and B is the cause. AB did not occur and was not analyzed. By applying the principle, the direct association events are analyzed one by one, two by two, so that the result events can be eliminated, and the reason events can be reserved.
In a third embodiment, the present invention also constructs a computer readable medium having a computer program stored thereon, which when executed by a processor implements the alarm filtering method of a nuclear power plant according to the first embodiment.
In a fourth embodiment, the present invention also constructs an electronic device including: one or more processors; and a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the alarm filtering method of a nuclear power plant as described in the first embodiment.
By implementing the invention, the following beneficial effects are achieved:
the invention can effectively reduce the number of intermediate alarms of the nuclear power plant under transient or accident working conditions, keep useful alarms as few as possible, reduce the workload of operators, facilitate the analysis of the alarms by operators, quickly locate fault points, help operators identify and judge common mode faults and multiple independent faults, help operators to effectively control a unit as early as possible, and prevent event deterioration.
It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (6)
1. The alarm filtering method for the nuclear power plant is suitable for functional alarm of nuclear power plant equipment and is characterized by comprising the following steps of:
s0: discretizing the equipment function state in advance, determining an alarm event of each equipment function, stripping the alarm event from alarm events of other equipment functions, and determining all independent alarm events; the equipment functions comprise water level, flow, pressure and temperature;
s1: pre-establishing causal relationships among all alarm events;
s2: after receiving the alarm event, analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all pre-established alarm events to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
s3: analyzing and processing, and reserving all cause alarm events;
wherein, the analysis processing in step S3 includes:
if an unknown alarm event is obtained, updating the unknown alarm event into a reason alarm event of the function alarm;
if the independent result alarm event is obtained, the result alarm event is updated to be the reason alarm event of the function alarm.
2. The alarm filtering method of a nuclear power plant according to claim 1, wherein step S1 includes:
and acquiring the function state dependency relationship when at least two equipment functions are connected, and establishing the causal relationship between alarm events of the at least two equipment functions.
3. An alarm filtering system of a nuclear power plant adapted to alarm a nuclear power plant equipment function, comprising:
the discrete module is used for discretizing the equipment function state in advance, determining the alarm event of each equipment function, stripping the alarm event from the alarm event of other equipment functions and determining all independent alarm events; the equipment functions comprise water level, flow, pressure and temperature;
the causality module is used for establishing causality among all alarm events in advance;
the analysis module is used for analyzing and determining the causal relationship of the received alarm event according to the causal relationship among all the pre-established alarm events after the alarm event is received, so as to obtain at least one of a cause alarm event, a result alarm event and an unknown alarm event;
the reservation module is used for reserving all cause alarm events through analysis and processing;
wherein, the reservation module includes:
the unknown alarm event updating module is used for updating the unknown alarm event into a reason alarm event of the function alarm if the unknown alarm event is obtained;
and the result alarm event updating module is used for updating the result alarm event into a reason alarm event of the function alarm if the independent result alarm event is obtained.
4. The alarm filtering system of a nuclear power plant of claim 3, wherein the causality module comprises:
the acquisition module is used for acquiring the function state dependency relationship when at least two equipment functions are connected;
and the establishing module is used for establishing the causal relationship between the alarm events of the at least two equipment functions.
5. A computer readable medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the alarm filtering method of a nuclear power plant as claimed in any one of claims 1-2.
6. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which when executed by the one or more processors cause the one or more processors to implement the alarm filtering method of a nuclear power plant as claimed in any one of claims 1-2.
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| CN202110084579.4A CN112927481B (en) | 2021-01-21 | 2021-01-21 | Nuclear power plant alarm filtering method, system, medium and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101651576B (en) * | 2009-08-28 | 2011-11-30 | 国家计算机网络与信息安全管理中心 | Alarm information processing method and system |
| CN101916499B (en) * | 2010-08-12 | 2012-05-30 | 深圳市共济科技有限公司 | Intelligent alarm device and intelligent alarm method |
| CN103680654B (en) * | 2013-12-10 | 2016-08-17 | 中广核工程有限公司 | For control method and system for nuclear power plant master-control room |
| CN104637555B (en) * | 2014-09-12 | 2017-08-04 | 中广核工程有限公司 | Based on nuclear power station unit station intelligent control method and system |
| CN106227133B (en) * | 2016-08-31 | 2018-11-13 | 中广核工程有限公司 | Integrate the monitoring system and method for npp safety function supervision and alarm |
| US11093310B2 (en) * | 2018-12-31 | 2021-08-17 | Paypal, Inc. | Flow based pattern intelligent monitoring system |
| CN111541559A (en) * | 2020-03-23 | 2020-08-14 | 广东工业大学 | Fault positioning method based on causal rule |
| CN111538643B (en) * | 2020-07-07 | 2020-10-16 | 宝信软件(成都)有限公司 | Alarm information filtering method and system for monitoring system |
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