KR20160062516A - System and method for tracking plant trip cause using data link between plant gateway system and single point vulnerability monitor in CANDU Type NPPs - Google Patents

Abstract

The present invention relates to a system for tracking the cause of a power generation shutdown of a heavy water reactor. The system comprises: a message collection unit which accesses a remote monitoring network system (plate gateway system) of a heavy water reactor, and collects alert messages from the remote monitoring network system; a message extraction unit which extracts alert messages based on power generation shutdown or output cutback, from the collected alert messages; a device link unit which manages the link with a device of a fault tree for each system and the extracted alert messages, wherein the fault tree is modeled with shutdown and output cutback based on malfunction, erroneous signal, and human error of the device, as the vertex; and a device tracking unit which tracks the cause of a device to breakdown on the basis of the fault tree information linked with the alert messages.

Description

[TECHNICAL FIELD] The present invention relates to a system and method for tracking a cause of a stoppage of a nuclear power plant using a remote monitoring network of a nuclear power plant,

More particularly, the present invention relates to a system and method for tracking a cause of a power failure using a remote monitoring network of a heavy water reactor and a monitoring program for monitoring a power generation stoppage device.

In this paper, we analyze the cause of failure of domestic standard type nuclear power plant and examine the improvement of reliability of electric power generation facility which stops generation of power generation (hereinafter referred to as " ).

The above-mentioned prior art discloses the analysis of the cause of the electric equipment related to the case of the standard type nuclear power plant in the present state of the nuclear power plant accident fault presented in the nuclear power plant accident information.

On the other hand, the fault trees of the SPV Monitor, which is currently being developed, are modeled in units of equipment. When a work order is input in connection with a work order, quantification is performed to reduce the risk of equipment maintenance .

If the result of the risk assessment using the SPV monitor shows that the reactor is stopped or stopped, or if the output power is less than 50%, it is necessary to identify the effect of the equipment on which the work is performed, Can be used to adjust. Accordingly, in addition to the risk of stopping the power generation due to the maintenance work, there is a need for a technique to track the cause of the power failure in an online state in connection with the remote monitoring network system (Plant Gateway System) that monitors various operating parameters of the heavy water reactor.

The currently developed SPV monitoring program (SPV Monitor) is to assess the impact on the operation of the plant when it is in the out-of-service state of the equipment before it is serviced in conjunction with the work order. In other words, there has been a problem in that there is no method of tracking and checking in reverse when the power generation stoppage monitoring program (SPV monitor) occurs due to a device failure or a bad signal,

An object of the present invention to solve the above-mentioned problems is to provide a system and method for controlling a power plant by connecting a warning message of a remote monitoring network system (Plant Gateway Ststem) of a heavy water channel and a fault tree logic diagram information of a power- And to provide a system and a method for tracking the cause when a detent occurs.

In order to accomplish the above object, according to the present invention, there is provided an alarm message collecting unit connected to a plant gateway system of a heavy waterpipe and collecting alarm messages from the remote monitoring network system, A message extracting unit for extracting an alarm message of the power generation stoppage or output aborting system among the alarm messages, and the extracted alarm message and the fault trees according to the system - the fault trees are suspended due to a malfunction of the apparatus, a mistake, A device linking unit for managing linkage with the device of the device modeled as a vertex, and a device trace unit for tracing the cause of the fault based on the fault tree information of the device associated with the alert message.

The device interface unit is connected to the power generation stop caused device monitoring program and includes a device information extracting unit for extracting device information corresponding to the basic event of the fault tree according to the system from the power generation stopping caused device monitoring program, And a device information linking unit for linking the basic event information of the failure tree of the device extracted through the device information extracting unit.

The generation stop monitoring device monitoring program evaluates the effect on the operation of the power plant when the equipment is in an out-of-service state for repairing the equipment in connection with the work order, And tree information.

The device tracing unit may trace the device that caused the failure based on the alarm message and the basic event information of the fault tree of the device connected through the linkage unit.

The device tracking unit may track a failure cause device for a predetermined period inputted through a user interface.

The monitoring system of the power failure stop cause of the heavy water reactor includes information generated through the alarm message collecting unit, the message extracting unit, the device linking unit, and the device tracking unit as a failure source, the remote monitoring network system of the heavy water channel, And a display unit for displaying various kinds of information.

In accordance with another aspect of the present invention, there is provided a method for tracking a cause of a power failure in a heavy water reactor, comprising the steps of: collecting an alarm message from a remote monitoring network system by connecting to a plant gateway system of a heavy water channel; A message extracting step of extracting an alarm message of a power generation stoppage or an output descending system among the generated alarm messages and the extracted alarm message and a system of a fault tree by a system, And a device tracking step of tracking the cause of the failure based on the faulty tree information of the device associated with the alert message and the device linkage step of managing linkage with the device of the modeled vertex.

Wherein the device linkage step comprises: a device information extracting step of connecting to the power generation suspension causing device monitoring program and extracting device information corresponding to a basic event of the fault tree according to the grid from the power generation suspension causing device monitoring program; And an information linking step of linking the message with the basic event information of the failure tree of the device extracted through the device information extracting unit.

The step of tracking the cause of the trouble includes a step of checking whether the power generation is stopped or output is checked based on the alarm message and the basic event information of the fault tree of the device linked through the device association step can do.

The method of tracking the cause of the power failure of the heavy water reactor includes transmitting the information generated through the alert message collecting unit, the message extracting unit, the linking unit, and the device tracking unit as a cause of failure and the remote monitoring network system and the power generation stopping device monitoring program And a display step of displaying various information.

According to the system and method for tracking down the cause of the power failure of the heavy water reactor of the present invention, the alarm message collected from the remote monitoring network system of the heavy water channel is linked with the fault tree information extracted from the power generation stopping device monitoring program (SPV Monitor) When a stop or an output is detected, the cause of the device is tracked, and the cause of the stop can be detected quickly.

FIG. 1 is a block diagram schematically showing a system for tracking down the cause of power failure of a heavy water reactor according to an embodiment of the present invention.
FIG. 2 is a view showing a kind of an alarm message extracted by a message extracting unit of a power failure stop cause tracking system of a heavy water reactor according to an embodiment of the present invention;
FIG. 3 is a detailed block diagram specifically illustrating a device connection unit of a power failure stop cause tracking system of a heavy water reactor according to an embodiment of the present invention;
FIG. 4 is a diagram for explaining the linkage of basic event information of a fault tree in a device linkage unit of a power failure stop cause tracking system of a heavy water reactor according to an embodiment of the present invention;
FIG. 5 is a flowchart schematically illustrating a method of tracking a cause of a power failure in a heavy water reactor according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate the understanding of the present invention, the same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a block diagram schematically illustrating a system for tracking down the cause of a power failure of a heavy water reactor according to an embodiment of the present invention. 1, the generation stop cause tracking system 100 according to an embodiment of the present invention includes an alarm message collecting unit 110, a message extracting unit 120, a device linking unit 130, A tracking unit 140, a display unit 150, a user interface 160, and a storage unit 170.

Referring to FIG. 1, the alarm message collecting unit 110 may access the remote monitoring network system (Plant Gateway System) 10 of the heavy water channel to collect alert messages. The heavy water remote monitoring network system 10 monitors various operation parameters of the heavy water system and can monitor and generate operating variable information including alarm messages of the system. The alarm message collecting unit 110 collects alarm messages including a wired or wireless communication function through a communication processor (not shown). The alert message may include at least one of alert target equipment, function location, device type, function, and failure mode related information. For example, the failure mode of a specific generator of a particular generator may include a high pressure / low pressure warning, a low / high water level steam generator alarm, a reactor coolant flow alarm, door open alarm, high temperature and low temperature alarm, voltage / current alarm, Alarms, turbine overspeed alarms, and so on. The alarm message is transmitted to the alarm message collecting unit 110 through the wired / wireless network.

The message extracting unit 120 may extract only the alarm messages related to the power generation stop or output triggering from at least one alarm message collected through the alarm message collecting unit 110. [ This will be described in detail with reference to FIG.

FIG. 2 is a view showing a kind of an alert message extracted by a message extracting unit of a power failure stop cause tracking system of a heavy water reactor according to an embodiment of the present invention. FIG.

Referring to FIG. 2, the message extracting unit 200 extracts only messages related to output spurt or generation stop among various types of alarm messages. That is, the message extracting unit 200 can retrieve the alert message of the system related to the power generation stop or output evocation among the collected alert messages, and extract only the retrieved messages. If the system information is included in the alarm message, it is possible to extract only the related message by confirming only the system related to the power generation stop or output detection. If the system information is not included in the alarm message, it is necessary to map the system related to the generation stop or output detection based on the failure code information included in the plurality of types of alarm messages. The mapping of the failure code information and the grid information can be determined by user setting. For example, it is possible to confirm whether a specific fault code is a message of a system related to power stoppage or a message of a system related to output spoofing through mapping information. User configuration information that determines the mapping relationship between the failure code of the message and the information of a particular system may initially be stored by default. The mapping relationship between the system and the failure code can be changed through the user interface 160. [ The message extracting unit 200 can extract only alarm messages related to power generation stop or output based on the grid information of the alarm message.

Referring back to FIG. 1, the device linking unit 130 performs a function of linking the alert message extracted through the message extracting unit 120 and the devices of the fault tree according to the system. That is, it receives fault tree information from the power generation suspension causing device monitoring program 20 and performs linkage with the extracted warning message. This will be described in more detail with reference to FIG.

FIG. 3 is a detailed block diagram illustrating an apparatus connection part of a power failure stop cause system of a heavy water reactor according to an embodiment of the present invention. 3, the device interface unit 300 according to an exemplary embodiment of the present invention may include a device information extraction unit 310 and a device information interface unit 320. FIG.

Referring to FIG. 3, the device information extracting unit 310 may connect to a power generation stop caused device monitoring program to extract device information corresponding to a basic event of a fault tree according to a system from the power generation stop caused device monitoring program. Here, the generation stop monitoring device monitoring program evaluates the influence on the operation of the power plant when the equipment is in an out-of-service state in order to repair the equipment in connection with the operation order, May include the fault tree information modeled as < RTI ID = 0.0 > That is, the device information extracting unit 310 can arbitrarily extract device information corresponding to the basic event of the fault tree in the system related to the generation stop or the output detection.

The device information linking unit 320 links the alert message of the power generation stop or output evacuation related system extracted by the message extracting unit 200 with the fault tree basic event information of the system extracted by the device information extracting unit 310. [

FIG. 4 is a diagram for explaining linking of basic event information of a fault tree in a device linkage unit of a power failure stop cause tracking system of a heavy water reactor according to an embodiment of the present invention.

Referring to FIG. 4, a fault tree may be modeled as a peak event in which a basic event 410 is a top event, and a malfunction of the device, a mistake, a power failure due to a human error, or an output malfunction is detected. That is, the device information linking unit 320 can link the basic event 410 of the modeled device with the alert message to track which device causes the failure of the device. The association of the message with the basic event 410 can be made by determining whether the identification information (system / device name, function location) of the alarm target device included in the message and the device information of the basic event 410 are identical. If they are the same, the execution of the association operation can be terminated, but if they are not the same, the association operation can be performed by adjusting the degree of association. For example, if the same underlying event 410 name as the alert message for the "steam turbine" is not retrieved, then the degree of association with the "turbine" At this time, a plurality of linked fault trees can be linked.

Referring back to FIG. 1, the device information linking unit 130 may store the information extracted from the message extracting unit 120 and the device information extracting unit and the associated information in the storage unit 170.

The device tracking unit 140 can track the device that is the cause of the failure based on the fault tree information of the device associated with the alarm message.

Referring to FIG. 4, the device tracking unit 140 may search the information of the lower layer associated with the basic event based on the basic event information of the fault tree of the device connected through the device information linking unit 130 have. It is possible to trace a device which causes power generation stoppage or output spawning by checking whether the power generation stop or output output of the device related to the detected lower layer information is detected. At this time, the device tracking unit 140 may set a predetermined period of time through the user interface 160, and may track the generation stopping or output causing device for a desired period.

1, the display unit 150 displays information generated through the alarm message collecting unit 110, the message extracting unit 120, the device information linking unit 130, and the device tracking unit 140, It is possible to display various kinds of information transmitted and received with the system such as the monitoring system 10 and the power generation stopping device monitoring program 20. [

How to trace the cause of stoppage of heavy water reactor nuclear power plant

FIG. 5 is a flowchart schematically illustrating a method of tracking a cause of a power failure in a heavy water reactor according to an embodiment of the present invention.

Referring to FIG. 5, the monitoring device for stopping the power generation of the heavy water reactor can access the plant gateway system of the heavy water reactor to collect alarm messages (S510). The tracking device of the power failure cause of the heavy water reactor collects alarm messages including wired or wireless communication functions. The alert message may include at least one of alert target equipment, function location, device type, function, and failure mode related information, and may include various failure cause related codes.

Then, the power failure stop cause tracking device of the heavy water reactor can search and extract only the alarm messages of the system related to the power generation stop or output detection from the collected at least one alarm message (S520). In other words, the tracking device of the power failure stoppage of the heavy water reactor nuclear power plant extracts only the messages relating to the output stoppage or the power stoppage among the various types of alarm messages. This is accomplished by retrieving alarm messages of the system related to power generation stop or output detection among the collected alarm messages, and extracting only the retrieved messages. If the system information is included in the alarm message, it is possible to extract only the related message by confirming only the system related to the power generation stop or output detection. If the system information is not included in the alarm message, it is necessary to map the system related to the generation stop or output detection based on the failure code information included in the plurality of types of alarm messages. The mapping of the failure code information and the grid information can be determined by user setting. For example, it is possible to confirm whether a specific fault code is a message of a system related to power stoppage or a message of a system related to output spoofing through mapping information. User configuration information that determines the mapping relationship between the failure code of the message and the information of a particular system may initially be stored by default. This means that the mapping relationship between the system and the fault code can be changed through the user interface.

The monitoring device of the power failure stop cause of the heavy water reactor can be connected to the monitoring device for monitoring the power generation stopping device to extract the device information corresponding to the basic event of the faulting tree by the power generation stopping device monitoring program (S530). The tracking device of the power failure stop cause of the heavy water reactor can arbitrarily extract the device information corresponding to the basic event of the fault tree of the system related to the power generation stoppage or output detection.

The power failure stop cause tracking device of the heavy water reactor links the alarm message of the power generation stop or output ignition related system extracted in step S520 and the fault tree basic event information of the device extracted in step S530 (S540) . Since the fault tree can be modeled as a top event in which the main event is the top event and the generation stoppage due to the malfunction of the equipment, error signal, human error, or the output detonation, The basic event of the device and the alert message can be linked to track which device is causing the failure of the device. The linkage between the message and the basic event can be made by determining whether the identification information (system / device name, function location) of the alert target device included in the message and the device information of the basic event are identical. If they are the same, the execution of the association operation can be terminated, but if they are not the same, the association operation can be performed by adjusting the degree of association. For example, if the same basic event name as the alarm message for the "steam turbine" is not retrieved, the association operation can be performed by lowering the degree of association to "turbine". At this time, a plurality of linked fault trees can be linked. The power failure stop cause tracking device of the heavy water reactor nuclear power plant may store the extracted information and the associated information in the storage unit (not shown) in step S520 and step S530.

The tracking device of the power failure stop cause of the heavy water reactor can track the device causing the failure based on the faulty tree information of the device associated with the alarm message (S550). The development stop cause tracking device of the heavy water reactor can search the lower layer information related to the basic event based on the basic event information of the faulty tree of the associated device. It is possible to trace a device which causes power generation stoppage or output spawning by checking whether the power generation stop or output output of the device related to the detected lower layer information is detected. At this time, the tracking device of the power failure stop cause of the heavy water reactor can set a predetermined period through a user interface (not shown), and can trace a device causing power generation stop or output for a desired period.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions as defined by the following claims It will be understood that various modifications and changes may be made thereto without departing from the spirit and scope of the invention.

10: Remote monitoring network system (Plant Gateway System)
20: Generation stop monitoring device monitoring program
100: Generation stop cause tracking system
110: alarm message collecting unit 120: message extracting unit
130: device linkage unit 140:
150: display unit 160: user interface
170:
200: message extracting unit
300: device connection unit 310: device information extraction unit
320: Device information linkage
410: Basic case

Claims (10)

In the system for tracking down the cause of power failure in a heavy water reactor,
An alarm message collecting unit connected to the remote monitoring network system (Plant Gateway System) for collecting alarm messages from the remote monitoring network system;
A message extracting unit for extracting an alarm message of the power generation stoppage or output alarm system from among the collected alarm messages;
The extracted alarm message and the fault trees according to the system - the fault trees are modeled as a peak point of the malfunction of the apparatus, the mistake due to the mistake, the human error, and the output spurt; And
And a device tracking unit for detecting a cause of the failure based on the fault tree information of the device associated with the alert message. The apparatus according to claim 1,
A device information extracting unit connected to the power generation stop caused device monitoring program and extracting device information corresponding to the basic event of each fault tree from the power generation stopping caused device monitoring program; And
And a device information linking unit for linking the alarm message extracted through the message extracting unit and the basic event information of the fault tree of the device extracted through the device information extracting unit. 3. The method of claim 2,
The generation stop monitoring device monitoring program evaluates the effect on the operation of the power plant when the equipment is in an out-of-service state for repairing the equipment in connection with the work order, Wherein the system includes tree information. The apparatus according to claim 1,
Wherein the device for tracing the cause of the failure of the heavy water reactor is traced based on the basic event information of the fault trees linked through the device linkage unit to check whether the power generation is stopped or output is turned off. 5. The method of claim 4,
Wherein the device tracing unit for the fault source tracks the fault cause device for a predetermined period inputted through the user interface. The method according to claim 1,
And a display unit for displaying information generated through the alarm message collecting unit, the message extracting unit, the device linking unit, and the device tracking unit as a cause of failure, and various information transmitted and received with the remote monitoring network system and the power generation stoppage- Wherein said system further comprises: In the method for tracking down the cause of power failure in a heavy water reactor,
An alarm message collecting step of collecting an alarm message from the remote monitoring network system by accessing a remote monitoring network system (Plant Gateway System) of the heavy water channel;
A message extracting step of extracting an alarm message of a power generation stoppage or an output alarm system among the collected alarm messages;
The extracted alarm message and the fault tree according to the system - the fault tree is modeled as a peak point of a malfunction, a mistake, a human error, and an output malfunction; And
And a device tracking step of tracking the cause of the failure based on the fault tree information of the device associated with the alert message. 8. The method of claim 7,
A device information extracting step of connecting to the monitoring device for monitoring the generation stopping device and extracting the device information corresponding to the basic event of the faulting tree according to the system from the power generation stopping device monitoring program; And
And an information linking step of linking the alert message extracted through the message extracting unit with basic event information of a fault tree of the device extracted through the device information extracting unit. 8. The method according to claim 7,
And tracking the cause of the failure of the heavy water reactor by checking whether the power generation is stopped or output is output based on the basic event information of the fault trees linked through the device linkage step . 8. The method of claim 7,
And a display step of displaying information generated through the alarm message collecting unit, the message extracting unit, the linking unit, and the device tracking unit as a failure source, and various information transmitted and received with the remote monitoring network system and the power generation stoppage- And the method for tracking the cause of power failure in a heavy water reactor nuclear power plant.

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