JPH08129415A - Support system for analysis of plant failure - Google Patents

Abstract

PURPOSE: To support the analysis of a plant failure by displaying the position of the failure causing part together with the failure state and the treating method for the failure. CONSTITUTION: A monitor menu 70a displays a system name in a background color in accordance with the degree of a failure, and a system diagram display screen 70b shows a device name in a background color in accordance with the degree of the failure. A device information offer screen 70c including the explanation of the device and the failure treating method is displayed in response to the contact with a device name display area 11 of the screen 70b. And, a trend graph of the quantity of state is shown in response to the contact with a quantity-of state display area 17. Furthermore, the trip information is stored and displayed on a trip data screen 70e when a trip occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a failure analysis support system for plant monitoring and failure analysis, and more particularly to a failure analysis support system suitable for condition monitoring and failure monitoring in a field electric room during gas turbine operation. .

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional gas turbine control panel 1 for controlling an industrial gas turbine is for inputting a meter 2 for displaying various state quantities and an instruction for controlling operation. The operation switch 3 and the failure indicator lamp 4 were provided. However, with this alone, it is difficult to instantly recognize which component has what state quantity in a system of a complex plant.

Therefore, in the inventions disclosed in Japanese Patent Laid-Open Nos. 61-185008 and 63-217494, a plant monitoring device is provided with an image display device, and the image display device is prestored in the image display device. By displaying the system diagram of the plant, the contents of the system can be easily recognized.

[0004]

However, even in these techniques, only the failure indicator lamp 4 is used to indicate the failure state. Therefore, if a failure occurs in the control panel that controls the plant such as the industrial gas turbine,
The failure indicator lamp 4 corresponding to the failure location is only turned on, and other information is not output to the control panel. Therefore, it is difficult to understand in detail what causes the failure, and it is necessary to examine the instruction manual to determine what kind of action should be taken against the failure.
It took time to clear the fault condition.

Therefore, it is an object of the present invention to provide a failure analysis support system for easily knowing the position of a failure-causing point, the failure situation and the coping method.

[0006]

Therefore, in the present invention, in order to achieve the above-mentioned object, a failure of a plant having an image display device having a display screen and a control unit for displaying an image on the image display device. In the analysis support system, the control unit is a means for receiving state quantity data indicating a state of a device belonging to a system forming a plant, and a monitor displaying a monitoring menu which is a list of the systems forming the plant on the display screen. The menu display means and the failure detection means for judging whether or not the device has a failure based on the state quantity data are provided, and the monitoring menu display means is judged to have failed by the failure detection means. A failure analysis support system for a plant is provided, which has means for highlighting a system to which the device belongs.

Further, according to the present invention, in a plant failure analysis support system having an image display device having a display screen and a control unit for displaying an image on the image display device,
The control unit is a system diagram that displays a system diagram of the selected system in the display image, a unit that receives state quantity data indicating a state of a device that belongs to a system that constitutes the plant, a unit that receives the selection of the system. Display means and failure detection means for judging whether or not the device has a failure based on the state quantity data, and the systematic diagram includes a display of devices belonging to the system shown in the systematic diagram, There is provided a plant failure analysis support system characterized in that the system diagram display means includes means for highlighting a device determined to have failed by the failure detection means.

In this failure analysis support system, the control unit further comprises a monitoring menu display means for displaying a monitoring menu, which is a list of the systems, on the display screen, and the monitoring menu display means operates by the failure detection means. It has a means for highlighting the system to which the device determined to be faulty belongs, and means for accepting the selection of the system,
Upon receiving an instruction to display the system in the monitoring menu, it is desirable that the system of the instructed display is selected.

Further, according to the present invention, in a failure analysis support system for a plant having an image display apparatus having a display screen and a control section for displaying an image on the image display apparatus, the control section accepts the selection of the device. There is provided a plant failure analysis support system comprising: means and a text display means for displaying text information predetermined on the display screen according to the selected device.

Here, the control unit receives the state quantity data indicating the state of the device belonging to the system constituting the plant, the unit for receiving the selection of the system, and the system of the system selected in the display image. The system diagram display means for displaying a diagram, and a failure detection means for judging whether or not the device has a failure based on the state quantity data are further provided, and the system diagram is a system shown in the system diagram. Including the display of the device to which the device belongs, the systematic diagram display means has means for highlighting the device determined to be in failure by the failure detection means, and the means for accepting the selection of the device is the display of the device. It is desirable that the device of the instructed display is selected when the instruction of is detected.

Further, according to the present invention, a failure analysis of a plant having an image display device having a display screen, a control unit for displaying an image on the image display device, and state quantity storage means for holding state quantity data. In the support system, the control unit, means for receiving the state quantity data indicating the state of the devices belonging to the system constituting the plant, the received state quantity data, means for storing the state quantity storage means over time, It is characterized by comprising means for accepting selection of the type of the state quantity data, and trend graph display means for reading the state quantity data of the selected type from the state quantity storage means and displaying it on the display screen. A failure analysis support system for a plant is provided.

Here, the trend graph display means is
It is desirable to display the state quantity data as a graph. Further, the control unit, means for accepting the selection of the system, system diagram display means for displaying the system diagram of the selected system in the display image, and whether the device has a failure based on the state quantity data Failure detection means for determining whether or not the system diagram includes a display of devices belonging to a system shown in the system diagram and state quantities of the devices, and the system diagram display means includes the failure detection means. The means for highlighting the device determined to be in failure by the means for accepting the selection of the type of the state quantity, when detecting the instruction to display the state quantity, the type of the displayed state quantity Should be selected.

Further, according to the present invention, failure analysis of a plant having an image display device having a display screen, a control unit for displaying an image on the image display device, and trip data storage means for holding state quantity data. In the support system, the control unit is a means for receiving an instruction from the outside, a failure detection means for determining whether or not a serious failure has a failure based on the state quantity data, and a time point when the serious failure is detected. The state quantity data received during a predetermined time before and after, means for storing the state data in the trip data storage means over time, and according to the instruction, read the state quantity data from the trip data storage means, There is provided a plant failure analysis support system comprising: a trend graph display means for displaying on the display screen.

Here, the trend graph display means is
It is desirable to display the state quantity data as a graph. Further, it is preferable that the failure analysis support system includes an external storage device, and the trip data storage means is provided in the external storage device.

[0015]

Since the monitoring menu display means of the present invention displays the system name on the monitoring menu screen in the background color according to the degree of failure, it is possible to easily know the system in which the failure has occurred and the extent of the failure. Further, in the present invention, in response to the contact to the system name display area of the monitoring menu, the system diagram display screen including the system diagram of the system displayed in the area is displayed. It is possible to easily know the device in which a failure has occurred and the extent of the failure.

Further, in response to a contact with the device name display area of the systematic display screen, a device information providing screen including a description of the device displayed in the area and a troubleshooting method is displayed. In addition, in response to the contact with the state quantity display area of the system diagram display screen, a trend graph is displayed that shows the change over time in the state quantity displayed in the area and the value of the state quantity related to the state quantity. As described above, according to the present invention, various kinds of information necessary for the determination of the coping method for the failure are immediately provided, so that the operator can quickly grasp the failure situation and can easily perform the operation. A failure coping method can be selected.

Further, in the present invention, in the plant,
When a trip occurs, state quantity data for a certain period of time including the time when the trip is detected is saved in an external storage device, and this saved data can be displayed as a graph, which helps analyze the cause after the trip. can do.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. A. Configuration of Failure Analysis Support System The failure analysis support system 20 of the present embodiment is mounted on a gas turbine control panel 25 that controls a plant including an industrial gas turbine as shown in FIG. The gas turbine control panel is connected to the plant 21 by a signal line 22, and has a plant control means 23 and a failure analysis support system 2
With 0 and. The plant control means 23 takes in the signal output from each device via the signal line 22, performs calculation / judgment, creates a control command to each device of the plant 21, and sends it to each device via the signal line 22. It is a means to notify.

The failure analysis support system 20 of this embodiment is
As shown in FIG. 1, the control unit 5 that creates information to be output.
And an input / output unit 6 and a memory unit 6 for holding information
Have and. The control unit 5 is connected to the plant control means 23 via a signal line 24, and the plant control means 23
From the notification of the state quantity data of each device from
This is means for notifying the memory unit 7 of information such as the state quantity data and notifying the input / output unit 6 of image information to be displayed. The hardware configuration of the failure analysis support system 20 according to the present embodiment is, as shown in FIG.
U (Central Processing Unit) 9
2, the external storage device 93, and the input / output means 6.

(1) Input / Output Means The input / output means 6 receives input of instructions from the outside,
It is means for notifying the control unit 5 and displaying an image in accordance with the image information notified from the control unit 5. The input / output means 6 is
An image display device 61, which is a graphic panel for displaying an image, is provided. The image display device 61 of the present embodiment is
Although it is a CRT (Cathode Ray Tube), other means such as a liquid crystal display device may be used. In the present embodiment, the output screen of the image display device 61 is provided with a touch sensor and also serves as an input means, but a keyboard, a mouse or the like may be provided as an input means instead.

(2) Memory Unit The memory unit 7 is a storage area secured in the external storage device 93, and as shown in FIG. 10, as a functional block, a system diagram storage means 107, a text storage means 108, State quantity storage means 109 and trip data storage means 110
And a criterion storage means 106. Based on the design information of the plant 21, etc., the system diagram storage means 107, the text storage means 108 and the judgment reference storage means 106 are
Data is registered in advance.

As shown in FIG. 11, the systematic diagram storage means 107 comprises a systematic table 111 which is a list of systems constituting the plant 21 and a device table 112 which holds information for creating a systematic diagram. . The system table 111 holds, for each system constituting the plant 21, a system name storage area 1111 holding a system name and a display color of a rectangular area in which the system is displayed (background color of the displayed system name). A system name display color storage area 1112 and a device table address storage area 1113 for holding the address of the device table 112 are provided.

The device table 112 is the table 1
For each device belonging to the system represented by 12, a device information storage area 1121 holding a device name, a display position storage area 1122 holding a display position of the device on the system diagram, and a display of the device. A display color storage area 1123 for holding the display color of the rectangular area (background color of the displayed device name), a state quantity storage area 1124 for holding state quantity data of the device, and a displayed rectangle of the device. It has a graphic information storage area 1125 that holds graphic information such as the size of the area and the connection relationship with the rectangular area of another device. The state quantity storage area 11
The data of the state quantity measured by the device is stored in 24, but the data indicating that there is no state quantity measured by the device (in the present embodiment, "nu"
11 ”) is retained. In FIG. 11, the illustration of the information held in the graphic information storage area 1125 is omitted.

In the text storage means 108, text information (name, purpose, information such as coping method in case of failure) about the device is registered in advance for each device. In this embodiment, one type of text is registered for each device, but the device status (normal,
A plurality of texts may be registered according to (light failure, serious failure).

The state quantity storage means 109 has a predetermined unit time (1 in this embodiment) for each type of state quantity.
A state quantity storage area (not shown) for holding state quantity data for each minute) is provided for a fixed time. The state quantity storage area is connected by a link for each type of state quantity,
The link order is the order in which the information was recorded.
In this embodiment, an area for 3 hours (180 state quantity storage areas for each device) is secured, and when the operating time exceeds 3 hours, the state quantity data is the oldest information. Is stored in a storage area that holds the.

The type of state quantity is predetermined. In this embodiment, for example, in the case of a lubricating oil system,
Five kinds of state quantities of gas turbine bearing temperature, lubricating oil temperature, lubricating oil pressure, generator bearing temperature, and lubricating oil tank temperature are measured, monitored, and stored.

The trip data storage means 110 is a state quantity storage area (not shown) for holding state quantity data for each predetermined unit time (1 second in this embodiment) for each type of state quantity. For a certain period of time. The state quantity storage areas are connected by links for each type of state quantity, and the order of links is the order in which information is recorded. In this embodiment, an area for 60 seconds (60 state quantity storage areas for each device) is secured.

The judgment criterion storage means 106 is a memory area for holding, for each device, a predetermined criterion for judging whether or not the device has a failure, for each of a minor failure and a major failure. Here, the criterion is a condition part "what value of the state quantity data of which state quantity type is" and "what device is what kind of failure (major failure or minor failure)." Is a causal relationship rule (if-then rule). Therefore, as shown in FIG. 18, the determination criterion storage unit 106 stores, for each rule, a state quantity type storage area 191 that holds the state quantity type to be judged, and a device that holds the name of the device described in the conclusion section. It has a row including a name storage area 192, a light failure condition storage area 193 holding a condition of a light failure, and a heavy failure condition storage area 194 holding a condition of a heavy failure.

In this embodiment, for example, the lubricating oil pressure is 1.
If the pressure is 7 to 1.4 kg / cm ² , the pressure switch “PS
4 ”is judged to be a minor failure, and the lubricating oil pressure is 1.4k.
If g / cm ² or less, it is determined that the pressure switch “PS4” has a serious failure. Therefore, the criterion storage means 1
As shown in FIG. 18, 06 is a state quantity type storage area 19
1, "lubricant pressure", "PS4" in the device name storage area 192, and "1.7 ~" in the minor failure condition storage area 193.
A row 195 for storing "1.4" and "1.4 or less" in the severe failure condition storage area 194 is provided.

(3) Control Unit As shown in FIG. 10, the control unit 5 includes a display control unit 100 and a monitoring menu display unit 10 as functional blocks.
1, system diagram display means 102, failure detection means 103
A text display means 105, a trend graph display means 104, a display screen storage means 97, a system name storage means 98, and a trip data storage means 99. It should be noted that each of the above-described means 100 to 105 includes the main storage device 91.
It is realized by the central processing unit 92 executing the instruction stored in advance. The storage means 97 to 99 are storage areas secured in the main storage device 91.

The display screen storage means 97 is a storage area for holding one screen name, and the system name storage means 98 is
This is a storage area for holding one system name.

The trip data storage means 99 stores a state quantity storage area for holding a state quantity data for each predetermined unit time (1 second in this embodiment) for each type of state quantity for a fixed time. Prepare The state quantity storage areas are connected by links for each type of state quantity, and the order of links is the order in which information is recorded. In addition,
In this embodiment, an area for 60 seconds (60 for each device)
Each state quantity storage area) is secured, and the operating time is 6
When the time exceeds 0 seconds, the state quantity data is stored in the storage area that holds the oldest information.

The display control means 100 has means for displaying an image and means for changing the display color. The means for displaying an image is any one of the monitoring menu display means 101, the system diagram display means 102, the text display means 105, and the trend graph display means 104 according to the instruction received through the input / output means 6. , Is a means for displaying an image. The means for changing the display color indicates the failure data notified from the failure detection means 103 (the device name of the device determined to be the failure and the magnitude of the failure (whether it is a light failure or a serious failure)). If the image currently displayed on the display screen is a monitoring menu or a system diagram based on the information (comprising information), the device determined to be defective in the monitoring menu display unit 101 or the system diagram display unit 102. Is a means for changing the display color (color of the rectangular area in which the device name is displayed) to a color according to the size of the failure.

The monitoring menu display means 101 outputs a list of systems of the plant 21 as shown in FIG. 4A to the display screen of the image display device 61 based on the information held in the system table 111. Is a means to do.

The system diagram display means 102 outputs the system diagram of the instructed system as shown in FIG. 3A to the display screen of the image display device 61 based on the information held in the device table 112. Is a means to do.

The text display means 105 displays, on the display screen of the image display device 61, the explanatory text of the instructed device as shown in FIG. 5B, based on the information stored in the text storage means 108. It is a means for outputting.

When the trend graph output means 104 is instructed to output the normal trend graph, the trend graph display means 104 uses the information stored in the state quantity storage means 109 as shown in FIG. A means for outputting a graph showing the transition of the state quantity data of the state quantity type to the display screen of the image display device 61, and a trip (a serious failure occurs. In this embodiment, the plant stops when a serious failure occurs). When the output of the trend graph at the time of occurrence is instructed, a graph showing the transition of the state quantity data of each state quantity type as shown in FIG. 8 is displayed based on the information held in the trip data storage means 110. , And means for outputting to the display screen of the image display device 61.

The fault detecting means 103 stores the state quantity data notified from the plant control means 23 via the signal line 24 in the system diagram storage means 107 and the trip data storage means 9.
9 and the means for storing in the state quantity storage means 109 and the judgment standard held in the judgment standard storage means 106, it is judged whether or not the status quantity data is a normal value, and if it is abnormal, the When the means for notifying the display control means 100 and the occurrence of the trip are detected, the content of the trip data storage means 99 is copied to the trip data storage means 110 after a fixed time (20 seconds in this embodiment). And means.

B. Transition of Display Screen Next, an image displayed on the display screen of the image display device 61 in this embodiment and its transition will be described. The transition of the display screen in this embodiment is shown in FIG.

(1) Monitoring menu screen In the initial state immediately after the start-up, the display screen 70 has a screen shown in FIG.
As shown in (a), the monitoring menu screen 70a is displayed. An example of the monitoring menu screen 70a is shown in FIG. As shown in FIG. 4A, the monitoring menu screen 70a includes a rectangular area region 14 that displays a system name for each system that constitutes the plant 21. In this example,
Since the plant 21 is composed of nine systems, the screen 70a has nine system name display areas 14. Furthermore, the monitoring menu screen 70a includes a caution area 10 for displaying predetermined information. Notes display area 10
Is an area for displaying important information for controlling the plant 21, and is provided commonly to all the screens 70a to 70e.

When the failure is detected by the failure detecting means 103, the display color of the system name display area 14 of the system in which the failure is detected is changed as shown in FIG. 4 (b). In this embodiment, the display color of the system name is black, the display color of the display area 14 (background color of the system name) when no failure is detected is white, and the display color when a minor failure is detected is displayed. The display color of the area 14 is yellow, and the display color of the display area 14 when a serious failure is detected is red. Therefore, according to the present embodiment, the operator can immediately determine which level of failure has occurred in which system. Note that FIG.
(B) is shown as an example when a failure is detected in the "lubricating oil system".

System name display area 1 by the input / output means 61
4 is detected, and accordingly, the contact shown in FIG.
As shown in, the system diagram display screen 70b including the system diagram of the system displayed in the area 14 is displayed.

(2) System diagram display screen A system diagram display screen 70b is shown in FIG. System diagram display screen 7
0b includes a systematic diagram display area 9, a selection area 12, and a cautions display area 10. In the system diagram display area 9,
The system diagram of the selected system is displayed. The systematic diagram is a line 3 representing the relationship between the device display area 11 which is the display area of the devices among the devices constituting the system and the device.
1 and 17 which is a display area of state quantity data.
Note that FIG. 3A illustrates a display example when the lubricating oil system is selected. The state quantity display area 17 and the device display area 11 of the device whose state quantity is displayed in the area are associated with each other.

In the present embodiment, the lubricating oil system is provided with the pressure switch "PS4" and the pressure converter "PT6". Therefore, the system diagram displayed in the system diagram display area 9 shows "PS".
A rectangular area 11a indicating "4" and a rectangular area 11b indicating "PT6" are displayed. "PS4" is a pressure switch that detects the presence or absence of lubricating oil pressure in the lubricating oil system. "PT6" is a pressure converter that converts the lubricating oil pressure in the lubricating oil system. Since the pressure transducer “PT6” has a state quantity indicating the state of the device, the pressure value 270 kPa, which is the state quantity data, is displayed in the state quantity display area 17a near the area 11b.

When a failure is detected by the failure detecting means 103, the display color of the area in which the device name of which the failure is detected is displayed is changed, as shown in FIG. 3B. The display color is the same as in the case of the system name described above. Therefore, according to this embodiment, the operator can immediately determine which device has which level of failure. Note that FIG. 3B illustrates the case where the device “PS4” has failed as an example.

In the selection area 12a, the monitoring menu screen 7 is displayed.
The display instruction of 0a is defined in advance. When the input / output unit 61 detects contact with the selection area 12a, the monitoring menu screen 70a described above is displayed accordingly, as shown in FIG. 7A.

When the contact with the device display area 11 is detected by the entering / exiting means 61, in response thereto, FIG.
As shown in, the device information provision screen 70c showing the text registered in advance in the text storage means 108 is displayed corresponding to the device defined in this area 11.

When the contact with the state quantity display area 17 is detected by the entering / exiting means 61, in response thereto, as shown in FIG. 7D, a graph display showing the change over time of the state quantity data is included. The trend graph screen 70d is displayed.

Display instructions for the trip data screen 70e are defined in advance in the selection area 12b. When the input / output unit 61 detects contact with the selected area 12d, the trip data screen 70e is displayed accordingly, as shown in FIG. 7E.

(3) Device Information Providing Screen FIG. 5 shows the device information providing screen 70c. The device information providing screen 70c includes a text display area 15 in which the text of the device information is displayed and a caution display area 10
And a selection area 12e. Text display area 15
Includes text information (name, purpose, coping method in case of failure, etc.) held in the text storage unit 108 corresponding to the device defined in the device display area 11 in which the contact is detected in the system diagram display screen 70b. Information) is displayed.

A system diagram display screen 70 is displayed in the selection area 12e.
The display instruction of b is defined in advance. When the input / output unit 61 detects contact with the selected area 12e,
In response to this, as shown in FIG. 7B, the system diagram display screen 70b displayed immediately before is displayed again.

FIG. 5 exemplifies a case where the contact to the display area 11a of the device "PS4" is detected on the system diagram display screen 70b. The text displayed when "PS4" is selected indicates that "PS4" is a lubricating oil pressure switch, its purpose is to detect the presence or absence of pressure, and the operating pressure of the switch is 140 kPa or more. What to do and what to do if something goes wrong is included.

As described above, since the explanation information and failure coping method for each device can be displayed as needed, according to the present embodiment, the operator can be immediately informed of how to deal with the failure that has occurred. I can teach.

(4) Trend graph screen The trend graph screen 70d is shown in FIG. The trend graph screen 70d includes a trend graph display area 18 in which a graph showing a change over time of the state quantity data is displayed, a cautions display area 10, and a selection area 12e. As in the case described above, when the contact with the selected area 12e is detected,
In response to this, as shown in FIG. 7B, the system diagram display screen 70b displayed immediately before is displayed again.

The combination of state quantity types displayed in the trend graph display area 18 is predetermined for each device. The state quantity data displayed on the trend graph screen 70d corresponds to the device defined in the device display area 11 associated with the state quantity display area 17 whose contact is detected on the system diagram display screen 70b.
It is the data of the state quantity of the state quantity type of a predetermined combination. The graph displayed in the trend graph display area 18 is a graph created based on the state quantity data stored in the state quantity storage unit 109.

FIG. 6 exemplifies a case where the contact of the device "PT6" with the display area 16a is detected on the system diagram display screen 70b. The state quantity types determined according to the device "PT6" are bearing temperature, lubricating oil temperature, and lubricating oil pressure. Therefore, when contact with the area 17a is detected, the bearing temperature, the lubricating oil temperature, and the lubricating oil pressure of the device display area 11b associated with the area 17a, which are determined according to the device "PT6", are detected. A graph showing changes over time is displayed in the graph display area 18 of the trend graph screen 70d.

In this embodiment, in this way, by displaying the trend graph immediately as needed, it is possible to determine the progress of the failure of the operator and the current failure state. We can assist you in making decisions.

(5) Trip Data Screen The trip data screen 70e is shown in FIG. The trip data screen 70e is a trip data display area 1 in which a graph showing changes over time in state quantity data before and after a trip is displayed.
9, a caution display area 10, and a system diagram selection area 12e
And a deletion selection area 12f. Similar to the case described above, when the contact with the selection area 12e is detected, the systematic diagram display screen 70b is displayed again.

In the trip data display area 19, a graph created based on the state quantity data stored in the trip data storage means 110 is displayed. It should be noted that, of the state quantity data stored in the trip data storage means 110, which state quantity type data is used to create the graph is predetermined.

In the delete selection area 12f, a trip data initialization instruction is defined in advance. In this embodiment, the trip data is temporarily stored in the trip data storage means 11
When the data is saved to 0, the data is not stored in the trip data storage means 110 even if the occurrence of a trip is detected next time, unless the data is initialized, in order to prevent the data from being destroyed by overwriting. By the input / output means 61, the selection area 12
When the contact with f is detected, the contents of the trip data storage means 110 are initialized accordingly, and the data can be saved when the occurrence of a trip is detected next.

In this embodiment, the trend graph is immediately displayed as needed in this manner, so that the operator can be assisted in analyzing the cause of the failure.

C. Processing of Failure Detecting Unit FIG. 18 shows a flow of processing of the failure detecting unit 103. The failure detection means 103 is activated when the gas turbine control panel 25 is activated. In this embodiment, via the signal line 24,
The state quantity data is notified from the plant control means 23 to the failure detection means 103 every one second.

When the failure detection means 103 is activated, first, as an initialization process, a state quantity storage time storage area (not shown) is stored in the main storage device 91 as a temporary storage area.
A trip time storage area (not shown) and a trip flag storage area (not shown) are secured, and a state quantity storage time storage area, a trip time storage area, a trip flag storage area,
State quantity storage area 1124 of system diagram storage means 107, state quantity storage means 109, and trip data storage means 99.
"0" is stored as an initial value in (step 180)
1).

Next, the failure detecting means 103 receives a notification of a set of state quantity data from the plant control means 23 (step 1802), and sends the notified state quantity data to
According to the state quantity type, the data is stored in the state quantity storage area 1124 of the system diagram storage means 107, the state quantity storage means 109, and the trip data storage means 99 (step 180).
3) The current time is stored in the state quantity storage time storage area (step 1804).

Further, the failure detecting means 103 sets one of the received sets of state quantity data (the one notified first in this embodiment) as a processing target (step 1).
805), the following steps 1806 to 1814 are executed.

In step 1806, the failure detecting means 103 judges whether the notified state quantity data is a normal value or not, based on the judgment standard stored in the judgment standard storage means 106. That is, from the criterion storage means 106,
The state quantity type storage area 19 indicates the type of state quantity data to be processed.
When the row held in 1 is detected and none of the conditions held in the light failure condition storage area 193 and the heavy failure condition storage area 194 of that row is satisfied, it is determined that the value is normal, and If the above condition applies, it is determined that the value is abnormal.

If the failure detection means 103 is normal, the display color information held in the systematic diagram storage means 107 is updated to information indicating "white" which means normal (step 1807), The process proceeds to step 1813.

In step 1807, the failure detection means 103 searches the system diagram storage means 107, and in step 1
In 806, the device name of the device detected to be normal (the device name stored in the device name storage area 192 of the detected line in the determination reference storage unit 106) is stored in the device name storage area 1121. Detect all device tables 112 provided. Next, the failure detection unit 103 displays “white” in the display color storage area 1123 of all the rows of the detected device table 112 in which the device name of the device in which the failure is detected is held in the device name storage area 1121. Is stored. Further, the failure detecting unit 103 is configured to operate in the area 1123.
Area 1 of all rows of the updated device table 112 for all device tables 112 whose contents have been changed
If there is no area 1123 that scans 123 and holds information indicating a color other than “white”, the system table 11
From 1, the line holding the device table 112 address in the device table address storage area 1113 is detected, and the information indicating “white” is stored in the system name display color storage area 1112 of the row.

If an abnormality is detected in step 1806, the failure detecting means 103 advances the process to step 1811 as it is if it is a minor failure (step 1808), and stores the trip time if it is a major failure (step 1808). It is determined whether the value held in the area is "0". If it is not "0", the trip time has already been set, and therefore the failure detection means 103 directly proceeds to step 1
The process proceeds to 811. If it is "0", it is not set, so the failure detection unit 103 stores the current time in the trip time storage area (step 1810), and advances the processing to step 1811.

At step 1811, the failure detecting means 10
3 updates the display color information held in the system diagram storage means 107 to information according to the detected failure. That is,
The failure detection unit 103 searches the system diagram storage unit 107, and detects all the device tables 112 including a row in which the device name of the device in which the failure is detected is held in the device name storage area 1121. Next, the failure detecting unit 103 detects the detected failure in the display color storage area 1123 of all the rows of the detected device table 112 in which the device name of the device in which the failure is detected is held in the device name storage area 1121. Depending on the degree, information indicating “red” for a major failure and information indicating “yellow” for a minor failure are stored. Further, the failure detecting unit 103 searches the system table 111, detects a line that holds the address of the detected device table 112 in the device table address storage area 1113, and stores the system name display color of the line. In the area 1112, information indicating “red” is displayed for a major failure and “yellow” for a minor failure according to the degree of failure.
Is stored. It should be noted that the degree of failure of the system at this time is determined by searching all display color storage areas 1123 in the device table of the system, and if there is even one area 1123 in which the information indicating “red” is held, It will be a failure,
There is no area 1123 in which the information indicating "red" is held, and area 11 in which the information indicating "yellow" is held
If there is only one, it is considered a minor failure and all areas 112
If 3 holds information indicating “white”, it is regarded as normal.

Next, the failure detection means 103 notifies the display control means 100 that a failure has been detected (step 1812) and advances the processing to step 1813.

In step 1813, the failure detecting means 103 determines whether there is unprocessed state quantity data. If there is unprocessed data (step 1813), one of the unprocessed data is processed (step 1
814), and the process is returned to step 1806.

If there is no unprocessed data, the failure detecting means 103 checks whether or not 20 seconds have elapsed from the time held in the trip time storage area (step 1815), and if so, trips. The value held in the flag storage area is inspected (step 1816). If 20 seconds have not elapsed from the trip time, or if the trip flag is not "0" even if it has elapsed, the failure detection unit 103 advances the process to step 1819 without saving the trip data.

If 20 seconds have elapsed from the trip time and the trip flag is "0", the failure detecting means 1
Reference numeral 03 denotes the data held in the trip data storage means 99, which is stored in the trip data storage means 110 of the external storage device 93.
Is copied (step 1817) and "1" is stored in the trip flag storage area (step 1818).

Next, the failure detecting means 103 checks whether one minute has passed from the time stored in the state quantity storage time storage area (step 1819), and if it has passed, the process proceeds to step 1802. Return to. If the time has not passed, the failure detection means 103 determines the plant control means 23.
A notification of a set of state quantity data from is received (step 1820), the notified state quantity data is stored in the storage area of the trip data storage means 99 corresponding to the state quantity type (step 1821), and the process is executed. Return to step 1805.

D. Display Control Means and Processing of Each Display Means (1) Initial Processing FIG. 12 shows a flow of processing of the display control means 100. The display control means 100 is started along with the start of the gas turbine control panel 25, first stores the identification information of the monitoring menu screen 70a in the display screen storage means 97, and then, as an initial screen, in the monitoring menu display means 101, The monitor menu screen 70a is instructed to be displayed on the display screen 70 of the image display device 61 (step 1201), and each display means 10 is displayed.
1, 102, 104, 105 and failure detection means 103
Wait for input from any of (step 120
2).

Monitor menu display means 101 that has received the instruction
Displays the monitoring menu screen 70a as shown in FIG. 13 (step 1301). At this time, the monitoring menu display means 101 fills the system name display area 14 to be processed with the display color held in the system name display color storage area 1112 of all the rows of the system table 111, and then, The procedure of displaying the system names held in the system name storage area 1111 in the same row in the area 14 is repeated to create and display the system name list.

Next, the monitoring menu display means 101
Input of the system name is accepted (step 1302). That is, the display screen 70 of the image display device 61 is provided with a touch sensor, and the input / output unit 61 is configured to display each system name display area 1
When the contact with No. 4 is detected, it is considered that the system name displayed in the area 14 is input, and the system name is notified to the monitoring menu display means 101.

Upon receiving the notification of the system name, the monitoring menu display means 101 stores the notified system name in the system name storage means 98.
(Step 1303) and notifies the display control means 100 that the display of the system diagram has been instructed (step 1).
304), the process ends.

(2) Image display processing The display control means 1 which has waited in step 1202
If there is any input to 00, the display control means 100
Depending on the content of the input (step 1203), step 1204, step 1214, or step 1
The process proceeds to 218. Here, first, the image display processing (steps 1204 to 1213) performed when the input is from other than the failure detection unit 103 will be described.

A. Display of Monitoring Menu Screen Upon receiving an input from other than the failure detecting means 103, first, the display control means 100, if the content of the instruction is an instruction to display the monitoring menu screen (step 1204), causes the display screen storage means 97 to display it. After storing the identification information of the monitoring menu screen 70a, the monitoring menu display means 101 is instructed to display the monitoring menu screen 70a on the display screen 70 (step 1205), and the process is returned to step 1202. Upon receiving the instruction, the monitoring menu display means 101 displays the monitoring menu screen 70a through steps 1301 to 1304 described above.

B. If the content of the display instruction on the system diagram display screen is the instruction to display the system diagram (step 1
206), the display control means 100 includes the display screen storage means 9
After storing the identification information of the system diagram display screen 70b in 7,
The systematic diagram display means 102 is instructed to display the systematic diagram display screen 70b on the display screen 70 (step 120).
7) and returns the process to step 1202.

Upon receiving the instruction, the system diagram display means 102 reads the system name stored in the system name storage means 98 as shown in FIG. 14 (step 1401), and the system table 1
11 to the device table address storage area 1113 of the row holding the system name in the system name storage area 1111.
The address held by is detected (step 1402).

Next, the system diagram display means 102 displays the system diagram display screen 70b on the display screen 70 based on the information held in the device table 112 of the detected address (step 1403). At this time, the system diagram display means 1
02 indicates the display color storage area 1123 at all the rows of the device table 112 at the position on the screen indicated by the position information held in the display position storage area 1122 of the row.
The rectangular area 11 of the display color held in the area is created, the device held in the device name storage area 1121 in the same row is displayed in the area 11, and the state quantity storage area 112 is displayed.
If the value held in 4 is not "null", area 11
The state quantity display area 17 is secured near the
The state quantity data held in is displayed in the area 17.

When the screen 70b is displayed, the system diagram display means 102 displays the device display area 11 and the state quantity display area 1
7, the input of a pre-defined instruction to any one of the monitoring menu selection area 12a and the trip data selection area 12b is accepted via the input means 6 (step 1404).

If the input instruction is a monitor menu display instruction (input by touching the monitor menu selection area 12a) (step 1405), the system diagram display means 102.
Notifies the display control means 100 of the display instruction of the monitoring menu screen 70a (step 1406) and ends the processing.

If the input instruction is an instruction for providing device information (input by touching the device display area 11) (step 1407), the systematic diagram display means 102 controls the display instruction of the device information providing screen 70c. Means 10
0 is notified (step 1408), and the process ends.

If the input instruction is a trend graph display instruction (input by touching the state quantity display area 17) (step 1409), the system diagram display means 102 controls the display of the trend graph screen 70d. Means 100
Is notified (step 1410) and the process ends.

If the input instruction is a trip data display instruction (input by touching the trip data selection area 12b) (step 1411), the system diagram display means 1
02 notifies the display control means 100 of the display instruction of the trip data screen 70e (step 1412) and ends the processing. If the input instruction is not the trip data display instruction (step 1411), it is an input error, and therefore the system diagram display means 102 executes the processing in step 1404.
Return to and accept input again.

C. Display of Device Information Providing Screen If the content of the instruction is the display of the device information providing screen (step 1208), the display control means 100 stores the identification information of the device information providing screen 70c in the display screen storage means 97, and then the text. The display device 105 is notified of the notified device name (step 1209) and the process is returned to step 1202. The text storage means 108
If a plurality of texts are registered according to the device status, the device name and the status of the device are notified in step 1209.

Upon receiving the notification of the device name, the text display means 105 reads the text information registered corresponding to the notified device name from the text storage means 108 (step 1501), and the text information is displayed as text. Device information provision screen 7 displayed in area 15
0c is created and displayed on the display screen 70 (step 1
502). Finally, the text display means 105 receives an input of an instruction by touching the systematic diagram selection area 12e via the inputting means 6 (step 1503), and notifies the display control means 100 of a display instruction of the systematic diagram display screen 70b. Then (step 1504), the process ends. In addition, in the case of notifying the device status together with the device name in step 1209, the notified device status in step 1501 (whether normal, minor failure, or major failure)
Read the registered text according to.

D. Display of Trend Graph Screen If the content of the instruction is an instruction to display the trend graph screen 70d (step 1210), the display control means 100
After storing the identification information of the trend graph screen 70d in the display screen storage means 97, the trend graph display means 104 is stored.
To the notified device name (step 121
1), the process returns to step 1202.

Upon receiving the notification of the device name, the trend graph display means 105, as shown in FIG. 16, stores the state quantity data of the state quantity type of the combination determined according to the notified device name in the state quantity storage means. It is read from 109 (step 1601), the trend graph screen 70d is created using the state quantity data, and is displayed on the display screen 70 (step 1602). Finally, the trend graph display means 104 accepts the input of an instruction by touching the system diagram selection area 12e via the input means 6 (step 1603), and the display control means 100 receives the display instruction of the system diagram display screen 70b. A notification is given (step 1604), and the process ends.

E. Display of Trip Data Screen If the content of the instruction is an instruction to display the trip data screen 70e (step 1212), the display control means 100
After storing the identification information of the trip data screen 70e in the display screen storage means 97, the trend graph display means 104 is displayed.
Is instructed to display the trip data screen 70e (step 1213), and the process is returned to step 1202.

The text display means 105, which has received the instruction to display the trip data screen 70e, reads out the state quantity data stored in the trip data storage means 110 (step 1701) and displays the state quantity data as shown in FIG. A trip data screen 70e is created by using it and displayed on the display screen 70 (step 1702). Finally, the trend graph display means 104 receives an input of an instruction by touching the selection area 12 via the input means 6 (step 1703). The trend graph display means 104 is
If the input of an instruction by touching the system diagram selection area 12e is accepted (step 1704), the system diagram display screen 70b.
Is notified to the display control means 100 (step 1705), the process is terminated, and if an instruction input by contact with the trip data deletion selection area 12f is accepted (step 1706), the trip data is initialized. The display control means 100 is notified of the instruction (step 1707), and the process ends. Even with the instruction to display the system diagram display screen 70b,
If it is not a trip data initialization instruction (step 1
706), since there is an input error, the process is performed in step 17
The value is returned to 03 and the input is accepted again.

(3) Display Color Change Process Next, the display color change process (steps 1214 to 121) performed when the input is from the failure detection means 103.
7) will be described.

The display control means 100, which has received the notification of the occurrence of the failure by the failure detection means 103, displays the display screen storage means 97.
If the identification information of the monitor menu screen 70a is held (step 1214), the monitor menu 70a is currently displayed on the display screen 70. Therefore, the monitor menu screen 70a is displayed on the monitor menu display means 101. The display is instructed (step 1215) and the process returns to step 1202. Upon receiving the instruction, the monitoring menu display means 101 executes the above steps 1301 to 1304.
The monitoring menu screen 70a is displayed again. System table 1
The display color information held in the system name display color storage area 1112 of 11 has already been updated by the failure detection unit 103. Therefore, by re-displaying, the monitoring menu screen 7
The system name display area 14 of 0a is displayed in the display color indicated by the updated display color information.

System diagram display screen 7 in display screen storage means 97
If the identification information of 0b is held (step 121
6) Then, the display control means 100 instructs the system diagram display means 102 to display the system diagram display screen 70b (step 1217), and returns the process to step 1202. Upon receiving the instruction, the system diagram display means 102 causes the above-mentioned step 140.
The system diagram display screen 70b is re-displayed from 1 to 1412. Display color storage area 1123 of device table 112
The display color information held in is already updated by the failure detection means 103. Therefore, by redisplay, the system name display area 11 of the system diagram display screen 70b is displayed in the display color indicated by the updated display color information.

(4) Trip Data Initialization Process Next, the trip data initialization process (step 1218) performed when the trend graph display means 104 notifies the trip data initial instruction will be described.

In step 1202, the display control means 100, which has received the notification of the trip data initial instruction, stores the trip time storage area and the trip flag which are temporary storage areas in the main storage device 91 as the trip data initialization processing. The initial value “0” is stored in the area and all the storage areas of the trip data storage means 99 of the external storage device 93 (step 1218), and the process is executed in step 120.
Return to 2.

E. Effects of this Embodiment According to this embodiment, it is possible to easily know the system in which a failure has occurred and its failure level from the background color of the system name display in the monitoring menu 70a. Further, in this embodiment, in response to the contact of the system name display area 14 of the monitoring menu 70a, the system diagram display screen 70b including the system diagram of the system displayed in the area 14 is displayed. The background color of the display makes it possible to easily know the device in which a failure has occurred and the extent of the failure.

Further, in response to the contact with the device name display area 11 of the systematic diagram display screen 70b, a device information providing screen 70c including a description of the device displayed in the area 11 and a troubleshooting method is displayed. In addition, in response to the state quantity display area 17 of the system diagram display screen 70b being touched, a trend graph showing the change over time in the state quantity displayed in the area 17 and the value of the state quantity related to the state quantity is displayed. To be done. As described above, according to the present embodiment, various information necessary for determining a method of coping with a failure is immediately provided, so that the operator can quickly grasp the failure situation and can easily perform the operation. The failure coping method can be selected.

Further, in this embodiment, when a trip occurs in the plant 21, the state quantity data for 40 seconds before and 20 seconds after the occurrence is detected is saved in the external storage device 93, and this saving is performed. Since the collected data can be displayed as a graph, the cause analysis after the trip can be supported.

[0104]

According to the present invention, it is possible to easily know the position of the failure cause portion, the failure situation and the coping method.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a gas turbine control panel according to an embodiment.

FIG. 2 is an external view of a conventional gas turbine control panel.

FIG. 3 is an explanatory diagram showing a transition of a system diagram display screen according to the embodiment.

FIG. 4 is an explanatory diagram showing a transition of a monitoring menu screen according to the embodiment.

FIG. 5 is an explanatory diagram showing a device information provision screen of the embodiment.

FIG. 6 is an explanatory diagram showing a trend graph screen of the embodiment.

FIG. 7 is an explanatory diagram showing a transition of a display screen in the embodiment.

FIG. 8 is an explanatory diagram showing a trip data screen according to the embodiment.

FIG. 9 is a hardware configuration diagram of the failure analysis support system according to the embodiment.

FIG. 10 is a functional block diagram of the failure analysis support system of the embodiment.

FIG. 11 is a schematic diagram showing a data structure of a systematic diagram storage means.

FIG. 12 is a flowchart showing the processing of the display control means.

FIG. 13 is a flowchart showing the processing of the monitoring menu display means.

FIG. 14 is a flowchart showing the processing of the systematic diagram display means.

FIG. 15 is a flowchart showing the processing of the text display means.

FIG. 16 is a flowchart showing the display processing of the trend graph screen of the trend graph display means.

FIG. 17 is a flowchart showing a trip data screen display process of the trend graph display means.

FIG. 18 is a flowchart showing the processing of the failure detecting means.

FIG. 19 is a schematic diagram showing a data structure of a judgment criterion storage means.

[Explanation of symbols]

1 ... Appearance of conventional gas turbine control panel, 2 ... Meter, 3 ...
Operation switch, 4 ... Fault indicator, 5 ... Control section, 6 ... Input / output means, 7 ... Memory section, 9 ... System diagram display area, 10 ... Precautions display area, 11 ... Device display area, 12 ... Selection area, 14 ... System display area, 15 ... Text display area,
17 ... State quantity display area, 18 ... Trend graph display area, 19 ... Trip data display area, 97 ... Display screen storage means, 98 ... System name storage means, 99 ... Trip data storage means, 100 ... Display control means, 101 ... Monitoring menu display means 102 ... System diagram display means 103 ... Failure detection means 104 ... Trend graph display means 105 ... Text display means 106 ... Judgment standard storage means 107 ...
System diagram storage means 108 ... Text storage means 109 ...
State quantity storage means, 110 ... Trip data storage means, 1
11 ... System table, 112 ... Device table.

Claims (11)

[Claims] 1. A failure analysis support system for a plant, comprising: an image display device having a display screen; and a controller for displaying an image on the image display device, wherein the controller is a state of devices belonging to a system constituting the plant. Means for receiving state quantity data, a monitor menu display means for displaying a monitor menu, which is a list of the grids that make up the plant, on the display screen, and whether the device has failed based on the state quantity data. And a failure detecting means for judging whether or not the monitoring menu display means has means for highlighting a system to which a device judged to be in failure by the failure detecting means belongs. Failure analysis support system. 2. A failure analysis support system for a plant, comprising: an image display device having a display screen; and a control unit for displaying an image on the image display device, wherein the control unit is a state of devices belonging to a system constituting the plant. Means for receiving state quantity data, means for receiving selection of the system, system diagram display means for displaying the system diagram of the selected system in the display image, and the device based on the state quantity data. Failure detection means for determining whether or not there is a failure, the systematic diagram includes a display of devices belonging to the system shown in the systematic diagram, the systematic diagram display means is a failure caused by the failure detection means. A failure analysis support system for a plant, comprising means for highlighting a device determined to be present. 3. The control unit according to claim 2, further comprising: a monitor menu display means for displaying a monitor menu, which is a list of the systems, on the display screen, wherein the monitor menu display means is configured to operate by the failure detection means. Having means for highlighting the system to which the device determined to be faulty belongs, the means for accepting the selection of the system receives the instruction for displaying the system in the monitoring menu, and the system for the instructed display A failure analysis support system for a plant, characterized in that 4. A failure analysis support system for a plant, comprising: an image display apparatus having a display screen; and a control section for displaying an image on the image display apparatus, wherein the control section includes means for accepting selection of the device, and A failure analysis support system for a plant, comprising: a display screen; and a text display means for displaying text information predetermined according to the selected device. 5. The control unit according to claim 4, wherein the control unit receives state quantity data indicating a state of a device belonging to a system that constitutes the plant, a unit that receives a selection of the system, and the selection is made in the display image. The system diagram display means for displaying the system diagram of the system, and the failure detection means for determining whether or not the device has a failure based on the state quantity data are further provided. , Including the display of devices belonging to the system, the systematic diagram display means has a means for highlighting the device determined to have a failure by the failure detection means, means for accepting the selection of the device, A failure analysis support system for a plant, characterized in that, when an instruction to display the device is detected, the device having the instructed display is selected. 6. A failure analysis support system for a plant, comprising: an image display device having a display screen; a control section for displaying an image on the image display device; and a state quantity storage means for holding state quantity data, The control unit receives a state quantity data indicating a state of a device belonging to a system forming a plant, a means for storing the received state quantity data in the state quantity storage means over time, and the state quantity data Failure analysis of a plant, which comprises means for accepting selection of the type, and trend graph display means for reading the state quantity data of the selected type from the state quantity storage means and displaying it on the display screen. Support system. 7. The failure analysis support system according to claim 6, wherein the trend graph display means displays the state quantity data as a graph. 8. The control unit according to claim 6, wherein the control unit receives a selection of the system, a system diagram display unit for displaying a system diagram of the selected system on the display image, and the state quantity data as a basis. And a failure detection means for determining whether or not the device has a failure. The systematic diagram includes a display of devices belonging to the system shown in the systematic diagram and state quantities of the device. The display means has a means for highlighting the device determined to be in failure by the failure detection means, and means for accepting the selection of the type of the state quantity detects the instruction to display the state quantity, A plant failure analysis support system, characterized in that the displayed type of state quantity is selected. 9. A failure analysis support system for a plant, comprising an image display device having a display screen, a control unit for displaying an image on the image display device, and trip data storage means for holding state quantity data, The control unit has means for receiving an instruction from the outside, failure detection means for judging whether or not the major failure is a failure based on the state quantity data, and predetermined before and after the time when the major failure is detected. Means for storing the state quantity data received during the specified time in the trip data storage means over time, and reading the state quantity data from the trip data storage means according to the instruction, and displaying the state data on the display screen. A failure analysis support system for a plant, comprising: a trend graph display means for displaying. 10. The failure analysis support system according to claim 9, wherein the trend graph display means displays the state quantity data as a graph. 11. The plant failure analysis support system according to claim 9, further comprising an external storage device, wherein the trip data storage means is provided in the external storage device.