JP2003058242A - Plant operation support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant operation support system which can support not only the decision of a plant abnormality cause but also a plant operation procedure for eliminating plant abnormality. SOLUTION: The plant operation support system is provided with an abnormality cause deriving means for inputting state information of a plant and deriving the cause of the plant abnormality on the basis of the inputted state information and an operation procedure deriving means for deriving the plant operation procedure for dissolving the plant abnormality. Both of the abnormality cause derived by the abnormality cause deriving means and the operation procedure derived by the operation procedure deriving means are displayed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sewage plant,
The present invention relates to an operation support system for various plants such as a rainwater treatment plant, a tap water plant, a water purification plant, a water storage plant, and a power generation plant, and more particularly to a plant operation support system that assists in determining an operation procedure for eliminating a plant abnormality that occurs in the plant. It is a thing.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram of a conventional plant abnormality diagnosing device disclosed in, for example, Japanese Patent Laid-Open No. 3-125922.
10 and 10 are explanatory views for explaining the knowledge stored in the knowledge database shown in FIG. In FIG.
1 is a computer, 2 is a plant, 3 is a process input section,
4 is an abnormality detection processing unit, 7 is a display device using a CRT, 8 is a display processing unit, 9 is a cause investigation processing unit, 10 is a cause knowledge database, 10a is a direct causal knowledge database in the cause knowledge database 10, and 10b is a cause. Knowledge database 1
Investigative operation knowledge database in 0, 11 is an input device, 1
Reference numeral 2 is a confirmation input processing unit.

Next, the operation will be described. The abnormality detection processing unit 4 inspects the data of the plant 2 sent from the process input processing unit 3, and if there is an abnormality, sends the abnormal event to the cause investigation processing unit 9. The cause investigation processing unit 9 searches the cause investigation database 10 for the cause of the abnormal event sent from the abnormality detection processing unit 4.

That is, if the abnormal event is directly contained in the causal knowledge database 10a, for example, "abnormal event 21" in FIG. 9, "cause 22" is output as the cause. Further, if the abnormal event is included in the investigative operation knowledge database 10b, for example, "abnormal event 31" in FIG. 10, "cause investigating operation guide 32" is output, and the completion of the operation according to this output is input device 11 Will be accepted via. After completing the operation, check the status of the operation result,
For example, in FIG. 10, if the state is “state 33”, “cause
34 ”, and if the status is“ Status 35 ”,“ Cause 36 ”is output.

The display processing unit 8 includes a cause investigation processing unit 9
Display the abnormal event, investigation operation guide, and cause of abnormality sent from the display device (CRT) 7. As described above, the conventional plant operation support system presents the plant operation procedure for confirming the cause of the plant abnormality, and the operator determines the cause of the plant abnormality by permitting execution of the plant operation procedure. It supports operators.

[0006]

As described above, the conventional plant operation support system presents the plant operation procedure for confirming the cause of the plant abnormality, and the operator permits the execution of the plant operation procedure. This assists the operator in investigating the cause of the plant abnormality. Therefore, after the cause of the plant abnormality is determined, the operator cannot be assisted with the plant operation for eliminating the plant abnormality. Therefore, in the past, the operator not only works to determine the cause of the plant abnormality, narrows down the cause of the plant abnormality by using the conventional plant operation support system, and finally determines the cause of the plant abnormality. There is a problem in that it is necessary to judge and determine the plant operation for eliminating the abnormality by itself, which imposes a heavy burden on the operator.

The present invention has been made in order to solve such a problem, and the plant operation support system can support not only the determination of the cause of the plant abnormality but also the plant operation procedure for eliminating the plant abnormality. The purpose is to do so.

[0008]

According to a first aspect of the present invention, there is provided a plant operation support system, which is an abnormality cause deriving means for inputting plant state information and deriving a cause of a plant abnormality based on the input state information. , And an operation procedure deriving means for deriving a plant operation procedure for eliminating the plant abnormality, and both of the abnormality cause derived by the abnormality cause deriving means, and the operation procedure derived by the operation procedure deriving means. It is what is displayed.

According to a second aspect of the present invention, there is provided a plant operation support system, in which plant state information is input, and a plurality of plant fault cause candidates are derived based on the input state information. An operation procedure deriving means for deriving a plurality of plant operation procedure candidates for eliminating an abnormality, an abnormality cause candidate derived by the abnormality cause deriving means, and an operation procedure candidate derived by the operation procedure deriving means, Is displayed in an adjacent area that can be compared.

A plant operation support system according to a third aspect of the present invention is the plant operation support system according to the second aspect, which has a plant operation execution means for operating equipment constituting a plant. The means executes the plant operation according to the operation procedure selected based on the abnormal cause candidate and the operation procedure candidate displayed in contrast.

A plant operation support system according to a fourth aspect of the present invention is the plant operation support system according to any one of the first to third aspects, in which the state information of the equipment constituting the plant is the abnormality. It is displayed in the adjacent area that can be compared with the cause candidate and the operation procedure candidate.

A plant operation support system according to a fifth aspect of the present invention is the plant operation support system according to any one of the first to fourth aspects, in which a symptom when a plant abnormality occurs and a symptom when the abnormality is eliminated There is a plant abnormality case database in which the cause of the abnormality and the operation procedure selected until the abnormality is resolved are recorded, and the plant abnormality cause is derived by the abnormality cause deriving means and the plant abnormality by the operation procedure deriving means. Derivation of the elimination operation procedure is performed using the plant abnormality case data base.

A plant operation support system according to a sixth aspect of the present invention is the plant operation support system according to the fifth aspect, wherein the plant abnormality case data is recorded based on the record of the plant abnormality case data base. -The tab displays the cause of abnormal recording and the reliability of the operating procedure.

A plant operation support system according to a seventh aspect of the present invention is the plant operation support system according to the fifth aspect, which is operated by an operator based on the record of the plant abnormality case data base. The contents are displayed.

The plant operation support system according to an eighth aspect of the present invention is the plant operation support system according to any one of the first to seventh aspects, in which, apart from the display, an abnormality is notified to a plant operator. Is what is done.

A plant operation support system according to a ninth aspect of the present invention is the plant operation support system according to any one of the first to eighth aspects, in which abnormal symptoms are displayed.

A plant operation support system according to a tenth aspect of the present invention is the plant operation support system according to any one of the first to ninth aspects, wherein an abnormality elimination display and an abnormality other than the indication are displayed. At least one of the cancellation notifications is performed.

An eleventh aspect of the plant operation support system according to the present invention is the plant operation support system according to any one of the first to ninth aspects, in which the abnormality cause derived by the abnormality cause deriving means is , The plant operating procedure derived by the operating procedure deriving means is relatively associated, and when any abnormal cause is selected, the plant operating procedure associated with the selected abnormal cause is also selected following. When an arbitrary plant operation procedure is selected, the cause of the abnormality associated with the selected plant operation procedure is also selected in accordance.

A plant operation support system according to a twelfth aspect of the present invention is the plant operation support system according to any one of the first to tenth aspects, wherein: , The plant operating procedure derived by the operating procedure deriving means,
If any abnormal cause is relatively related and the selected abnormal cause is deleted, the plant operating procedure related to the selected abnormal cause is also deleted, and if any plant operating procedure is deleted, the selected plant operating procedure is deleted. The cause of abnormality associated with is also deleted.

A plant operation support system according to a thirteenth aspect of the present invention is the plant operation support system according to the eleventh aspect or the twelfth aspect, wherein the cause-of-abnormality and the plant operation procedure have at least a one-to-one follow-up relationship. It is a relationship.

A plant operation support system according to a fourteenth aspect of the present invention is the plant operation support system according to the thirteenth aspect, in which the tracking relationship between the cause of abnormality and the plant operation procedure is displayed.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 is a diagram showing an example of a system configuration of an example of a plant operation support system according to Embodiment 1 of the present invention, FIG. 2 is an operation explanatory diagram of FIG. 1, and FIG. 3 is an example of a display screen of a display device in FIG. Figure,
FIG. 4 is a diagram showing another example of the display screen of the display device in FIG. 1 to 4 show the case of a rainwater treatment plant as an example.

In FIGS. 1 and 2, 100 is a plant, for example, various plants such as a sewage plant, a rainwater treatment plant, a tap water plant, a water purification plant, a water storage plant, and a power plant. Reference numeral 101 denotes a plant state monitoring means for constantly monitoring the state of the plant 100 to predict or detect the occurrence and elimination of an abnormality (which means both an abnormal state and an abnormal state) of the plant 100. For the purpose and other purposes, for example, in the case of a rainwater treatment plant, for example, the No. 1 pump output of the No. 1 tank (50%, etc.), the No. 2 pump pump output of the No. 1 tank (0
%), No1 inflow valve opening of No1 water tank (100%, etc.),
No. 1 water intake gate opening (100%), river A area rainfall (120 mm / hr, etc.), untreated water discharge (0 t / s
ec), No1 water tank water level (95%, etc.), etc. are detected.

Reference numeral 102 denotes an abnormality cause analyzing means, which receives a symptom of the plant abnormality from the plant state monitoring means 101, notifies an operator of the occurrence of the plant abnormality, and derives a candidate group of the cause of the plant abnormality. is there.
Reference numeral 103 denotes an operation procedure derivation means, which is the abnormality cause analysis means 1
02 to receive a candidate group of abnormality causes and derive a candidate group of plant operation procedures for eliminating the plant abnormality. 104 is a plant operation execution means, which receives an instruction to execute a plant operation procedure from the operation procedure derivation means 103 and executes the plant operation procedure.

Reference numeral 105 is a knowledge database, which stores knowledge of the types of plant abnormalities / relationship between events and abnormal causes, relationship between abnormal causes and plant operating procedures, plant equipment configuration, treated water system connection, etc. Has been done. Reference numeral 106 denotes a dialogue processing means for exchanging information between the abnormality cause analyzing means 102 and the operation procedure determining means 103. Reference numeral 107 denotes an electronic computer, which includes hardware such as an arithmetic unit, a control unit, a storage unit, and I / O, and the plant state monitoring unit 101, an abnormality cause analyzing unit 102, an operation procedure deriving unit 103, a plant operation executing unit 104, knowledge. It is composed of a database 105 and a dialogue processing means 106. A display device 108 includes a liquid crystal display device, a CRT, a printer, and various other display devices. An input device 109 is a keyboard, mouse,
Touch panels and other various input devices are used.

In FIG. 3, a display screen 108A shows an example in which one display example is displayed on one display device.
In FIG. 4, 108A and 108B are respective screens of two different display devices, and one display example in FIG. 3 is shown divided into two display devices.

Next, the operation will be described with reference to FIGS. 2 and 3. First, the plant state monitoring means 101 detects information on the plant state and predicts or detects the occurrence of a plant abnormality. The abnormality cause analysis means 102 is notified of the symptom of the plant abnormality, for example, “heavy rain in the upstream area of the river. There is a risk of overflowing No. 1 water tank”. Abnormal cause analysis means 10
2 is plant knowledge such as equipment configuration of the plant and connection of treated water system, and the plant state monitoring means at that time
Information on plant status obtained from 101, for example, "No 1 pumping pump output 50%, No 2 pumping pump output 0
%, No1 inflow valve opening 100%, water intake gate opening 100%, river A area rainfall 120 mm, river A area rainfall 120 mm, untreated water discharge ”(0), water tank water level 95% ... -A group of events that may cause the plant abnormality, such as "A: No1 pump pump output is too small, B: No2 pump pump output is 0, C: No1 inlet valve opening is too large, D: Water intake Excessive gate opening ... "Derive" etc.

This event group is an abnormal cause candidate group, and the abnormal cause analyzing means 102 displays the abnormal cause candidate group and the symptom of the plant abnormality on the display device 108 via the interactive processing means 106 and presents it to the operator. At the same time, the abnormality cause candidate group is notified to the operation procedure deriving means 103. When the operation procedure deriving means 103 receives the abnormality cause candidate group,
When it is assumed that each abnormality cause is the true cause of the plant abnormality, a plant operation procedure group for eliminating the plant abnormality is provided with plant knowledge including plant equipment configuration and system connection and its time point. It is derived using the information about the plant state in.

This procedure group is an operation procedure candidate group, and the operation procedure deriving means 103 displays the operation procedure candidate group on the display device 10.
It is displayed on 8 and presented to the operator. For example, in a rainwater treatment plant, when a plant abnormality of "water level is too high" of the No. 1 water storage tank occurs, the plant operation support system indicates that "the opening of the inflow valve is too large" and "No.
Abnormal cause candidate group C consisting of three candidates, "1 pump pump output is too low" and "No1 reservoir No. 2 pump pump output is too low", and "No1 reservoir opening control of No1 inlet valve" Increased output of No. 1 pump for No. 1 water storage tank
An operation procedure candidate group P composed of three candidates, "No. 1 No. 2 pumping pump output increase" is displayed on the display device 108 and presented to the operator.

From the operation plan of the day that depends on a predetermined long-term operation plan, the plant equipment status of the day, the contents of the abnormal display, the contents of the abnormal condition, etc., the operator arbitrarily makes the above-mentioned display of the day. From the abnormality cause candidate group displayed on the screen 108A of the device 108, selection of an abnormality cause candidate, execution of the selection or determination of deletion of an abnormality cause candidate, execution of the deletion, and selection from the operation procedure candidate group Either the determination of the operation procedure candidate and the execution of the determination operation or the determination of the deletion of the operation procedure candidate and the execution of the deletion are input to the input device 109. By this operation, an instruction is given via the dialogue processing means 106 to the abnormality cause analysis means 102 or the operation procedure derivation means 103, whichever is appropriate. The instruction for selecting and deleting the abnormality cause candidate is sent to the abnormality cause analyzing means 102, and the abnormality cause analyzing means 10
2 updates the abnormality cause candidate group according to the instruction, sends the updated abnormality cause candidate group to the operation procedure deriving means 103, and presents it to the operator.

For example, in the example of the rainwater treatment plant described above, when the operator gives an instruction to delete from the abnormality cause candidate group of the abnormality cause candidate "inflow valve opening is excessively large", the abnormality cause analysis means 102 The abnormal cause candidate group C
“No. 1 pump pump output is too small” and “No.
A new abnormality cause candidate group D composed of two candidates "2 pumping pump output is too small" is sent to the operation procedure deriving means 103 and is displayed on the display device 108 to be presented to the operator. Updates the operation procedure candidate group P and displays on the display device 108 a new operation procedure candidate group Q consisting of two candidates, "No 1 pumping pump output increase" and "No 2 pumping pump output increase". And present it to the operator.

Further, when the instruction from the operator is the execution of the operation procedure candidate, the instruction is sent to the operation procedure deriving means 103, and the operation procedure deriving means 103 executes the operation procedure in accordance with the instruction. The plant operation execution means 104 is instructed, the abnormality cause analysis means 102 is notified of the execution of the operation procedure, the operation procedure candidate group is updated, and the updated operation procedure candidate group is displayed on the display device 108 to show the operator. Present to. The plant operation execution means 104 which has received the operation command execution instruction executes the operation procedure, and the abnormality cause analysis means 102 appropriately updates the abnormality cause candidate group based on the received execution notification of the operation procedure, The updated abnormality cause candidate group is displayed on the display device 108 and presented to the operator.

For example, in the example of the rainwater treatment plant described above, the operator selects the operation procedure candidate “No” from the operation procedure candidate group Q.
In the case of instructing the execution of "1 pump output increase", the operation procedure derivation means 103 causes the plant operation execution means 104 to operate.
To the plant operation procedure “No 1 pump output increase”, and the abnormality cause analysis unit 102 is requested to have operation procedure candidate “No”.
Notifying that "1 pumping pump output increase" has been executed, and indicating that the operation procedure candidate "No 1 pumping pump output increase" in the operation procedure candidate group Q has already been executed, etc. Display device 1 for new operation procedure candidate group R
It is displayed on 08 and shown to the operator. The plant operation execution means 104 executes the plant operation procedure “Increase output of No. 1 pump”, and the abnormality cause analysis means 102 detects abnormality cause candidate “No. 1 pump output is too small” in the abnormality cause candidate group D.
, A new abnormality cause candidate group E with a mark such as “Done” indicating that the corresponding operation procedure candidate has been executed is displayed on the display device 108 and presented to the operator.

If the instruction from the operator is to delete the operating procedure candidate, the instruction is sent to the operating procedure deriving means 103, and the operating procedure deriving means 103 follows the instruction and outputs the operating procedure candidate group. Is updated and abnormality cause analysis means 1
The deletion of the operation procedure is notified to 02, and the updated operation procedure candidate group is displayed on the display device 108 and presented to the operator. The abnormality cause analysis unit 102 appropriately updates the abnormality cause candidate group based on the received notification of deletion of the operation procedure, displays the updated abnormality cause candidate group on the display device 108, and presents it to the operator.

For example, in the example of the rainwater treatment plant described above, the operator selects the operation procedure candidate “No” from the operation procedure candidate group Q.
If you instructed to delete the output increase of No. 1 pumping pump ”,
The operation procedure derivation means 103 removes the operation procedure candidate from the operation procedure candidate group Q, notifies the abnormality cause analysis means 102 that the operation procedure candidate “No. 1 pump output increase” is deleted, and “No. 2”. The operator is presented with a new operation procedure candidate group S composed of one candidate of “increase in output of pumping pump”. The abnormality cause analysis means 102 uses the abnormality cause candidate “No 1
A new abnormality cause candidate group F marked with a mark indicating that the corresponding operation procedure candidate is deleted for "the output of the pumping pump is too small" is displayed on the display device 108 and presented to the operator.

When the plant state monitoring means 101 detects that the above abnormality has been eliminated in the course of the above-mentioned operation, the elimination of the above abnormality is caused by the abnormality cause analyzing means 102.
Will be notified immediately. Upon receiving the abnormality elimination notification, the abnormality cause analysis means 102 displays the fact that the abnormality has been eliminated on the display device 108 to notify the operator, deletes the abnormality cause candidate group, and issues the abnormality elimination notification. Transfer to the operation procedure derivation means 103. The operation procedure deriving means 103 that has received the abnormality elimination notification deletes the operation procedure candidate group.

An example of various displays on the above-mentioned display device 108 is shown in FIG. 3, and [abnormality display], [abnormality symptom],
[Plant equipment status], [Cause candidate] (No1 water tank),
The contents of [Operating procedure candidate] (No. 1 water tank) are displayed in the respective frames in different areas on the same screen 108A. In other words, for the [Error display]
"Water level abnormality" is displayed. Similarly, [abnormal symptoms]
Regarding “Amount of heavy rain in the upstream area of the river. There is a risk of overflowing the No. 1 water storage tank.” Regarding “Plant equipment status”, “No. 1 pumping pump output 50%, No. 2 pumping pump output 0%, ...
.., No. 1 inlet valve opening 100%, ..
Opening rate 100% ......, River A area rainfall 120m
m, No1 water tank untreated water discharge 0, No1 water tank water level 95%
...... ", and [Candidate for cause] (No1 water tank)," A: No1 pumping pump output is undersized, B: No2 pumping pump output is 0, C: No1 inlet valve opening is too large, D: Water intake --- Excessive opening, ... For [Operation procedure candidate] (No1 water tank), "1: Increase No1 pump output → 100% completed,
2: No2 pump output increase → 100% 3: No1 inflow valve opening suppression → opening 50% 4: water intake gate opening suppression → opening 80
%, ...... "are displayed respectively.

In FIG. 3, if the water level abnormality in the No. 1 water storage tank is eliminated, "abnormality elimination" is displayed in the "abnormality indication" and "abnormality symptom" is displayed in the "abnormality symptom".
Is displayed. In the [plant equipment state], as the anomaly is resolved, for example, “river A district rainfall 30
mm, No1 water tank water level 70% ", etc., the display content changes correspondingly in real time. In [Cause candidate] (No1 water tank), the candidate selected by the operator is input to the input device 109. , "Done" at the end of the candidate
Is displayed. In FIG. 3, “A: No. 1 pumping pump output undercompleted” is displayed. [Operating procedure candidates] (No1
Similarly, in the water storage tank), the candidate selected and determined by the operator is input to the input device 109, and thus “done” is displayed at the end of the candidate. In Figure 3, "1: No1"
Pump output increase → 100% completed ”is displayed.

[Plant equipment status] indicates another related plant monitored and controlled by the electronic computer 107, for example, No1.
By displaying not only the No. 1 water storage tank of the rainwater treatment plant but also the No. 2 water storage tank of the No. 2 rainwater treatment plant and others, it will help the operator to judge the status of other related plants. There is. Other [Abnormality Display],] Abnormal Symptoms], [Cause Candidate] (No1 Reservoir), and [Operating Procedure Candidate] (No1 Reservoir) are targeted only at the plant in which the operator is in charge It is designed to be displayed only when it occurs to reduce the burden on the operator.

FIG. 4 shows [abnormality display], [abnormality symptom],
[Plant equipment status] is displayed on the display screen 108A,
[Cause candidate] (No1 water tank), [Operation procedure candidate] (No1
Regarding the water tank), an example of displaying on the other display screen 108B adjacent to the display screen 108A is shown, and when the display information amount is large, the number of characters to be included in one screen, the scroll amount of the screen, From the viewpoint of size, etc., it is more preferable than that of FIG.

As described above, according to the first embodiment, the operator can interactively grasp the cause of the abnormality and the method of eliminating the abnormality regarding the generated plant abnormality while narrowing down the candidate group. It is possible to reduce the burden on the operator when the plant is abnormal.

Embodiment 2. In the first embodiment described above,
The abnormality cause analysis unit 102 derives an abnormality cause candidate group of the plant abnormality using the plant knowledge such as the equipment configuration and system connection of the plant and the information about the plant state at that time, and the operation procedure deriving unit 103 outputs the abnormality. An example of deriving the operation procedure candidate group using the plant information such as the cause candidate group and the equipment configuration and system connection of the plant and the information on the plant state at that time has been shown. Derivation of a candidate group of causes and a candidate group of operation procedures A plant consisting of a symptom of abnormalities in the plant and a candidate group of abnormality causes deleted by the operator until the abnormality is resolved, and a group of plant operation procedures executed by the operator until the abnormality is resolved It uses anomalous cases.

5 to 7 are views for explaining an example of the plant operation support system according to the second embodiment of the present invention, FIG. 5 is a view showing a system configuration example, and FIG. 6 is an operation explanation view of FIG. FIG. 7 is a diagram showing an example of a display screen of the display device in FIG. Note that these FIGS. 5 to 7 show the case of a rainwater treatment plant as an example as in the case of FIGS. 1 to 4.

5 and 6, the plant state monitoring means 101, the abnormality cause analyzing means 102, the operation procedure deriving means 103, and the plant operation executing means 104 are basically the same as those in the first embodiment. It is a thing.
Reference numeral 110 denotes a plant abnormality case database, which stores plant abnormality cases received from the operation procedure deriving unit 103, and when a plant abnormality symptom is notified from the plant state monitoring unit 101, a past plant abnormality case similar to the symptom. Is provided and provided to the abnormality cause analysis means 102.

Next, the operation will be described with reference to FIGS. First, the plant state monitoring means 101 predicts or detects the occurrence of a plant abnormality. The symptom of the plant abnormality is notified to the plant abnormality case database 110, and the plant abnormality case database 110 retrieves a past plant abnormality case similar to the symptom of the plant abnormality and retrieves it as the symptom of the plant abnormality. The abnormality cause analysis unit 102 is notified of the similar plant abnormality case group. The abnormality cause analysis unit 102 derives an event group that may be a cause of the plant abnormality by using the plant abnormality case group, plant knowledge such as equipment configuration and system connection of the plant, and information about the plant state at that time. .

This event group is an abnormal cause candidate group, and the abnormal cause analyzing means 102 displays the symptoms of the plant abnormality and the abnormal cause candidate group on the display device 108 and presents them to the operator, and the operating procedure deriving means 103. Notify the symptom of the plant abnormality, the plant abnormality case group, and the abnormality cause candidate group. When the operation procedure deriving unit 103 receives the abnormality cause candidate group, the operation procedure deriving unit 103 obtains a plant operation procedure group for eliminating the plant abnormality, assuming that each abnormality cause candidate is the true cause of the plant abnormality. It is derived using plant information such as abnormal case groups, plant equipment configurations and system connections, and information on the plant state at that time. This procedure group is an operation procedure candidate group, and the operation procedure deriving unit 103 displays the operation procedure candidate group on the display device 108 and presents it to the operator.

For example, in the example of the rainwater treatment plant mentioned in the first embodiment, "the water level of the No. 1 water storage tank is too high"
In the past plant abnormality with the same symptom, for example, the abnormality cause candidate “Inflow valve opening is too large” and the operation procedure candidate “No1 pump pump output increase” were deleted by the operator. Is recorded in the similar plant abnormality case group, the plant operation support system displays the abnormality cause candidate group F and the operation procedure candidate group S on the display device 108 and presents them to the operator.

The operator selects an abnormal cause candidate for the abnormal cause candidate group and the operation procedure candidate group presented by the plant operation support system and executes the selection or deletes the abnormal cause candidate and executes the deletion or determines the operation procedure candidate. The operation of the driving support system in response to the input operation to the input device 109, which is the execution of the determination operation or the determination of the deletion of the operation procedure candidate and the execution of the deletion, is the same as that in the first embodiment. Is.

In the process of the above operation, when the plant state monitoring means 101 detects that the above abnormality has been eliminated, the elimination of the above abnormality is caused by the abnormality cause analyzing means 102.
Will be notified immediately. Upon receiving the abnormality elimination notification, the abnormality cause analyzing means 102 notifies the operator that the abnormality has been eliminated, deletes the abnormality cause candidate group, and transfers the abnormality elimination notification to the operation procedure deriving means 103. . The operation procedure derivation means 103 which has received the abnormality elimination notification deletes the operation procedure candidate group, and deletes the plant abnormality case corresponding to the abnormality elimination notification from the symptoms of the plant abnormality and the abnormality deleted by the operator until the abnormality is eliminated. Created from a group of cause candidates and a group of plant operation procedures executed by the operator until the abnormality is resolved,
The plant abnormality case database 110 is notified. Upon receiving the plant abnormality case, the plant abnormality case database 110 adds the plant abnormality case to the plant abnormality case database 110.

An example of various displays on the above-mentioned display device 108 is shown in FIG. 7. As a [similar case] (No1 water tank), "1." Water level abnormality "→ raw A (No1 pump output shortage).
→ Operation 1 & 2, "(Operation history) Operation procedure 3 deleted, cause C
Follow-up deletion ”(indicated by a box in the figure. The same applies hereinafter), 2. “Water level abnormality” → Original A (No1 pump failure)
→ Operation 2 "is displayed, and the operation history of the above-mentioned operator is displayed. Also, in [Cause candidate] (No1 water tank)"
"A: No1 pumping pump output under-cut", B: No2 pumping output zero, C: No1 inlet valve opening too large ...
・ "Is displayed and" A: No1 pumping pump output undercut "was deleted in the above similar cases in the cause candidate group. "Displayed by and. This [Cause Candidate] (No1
Similar to the (water tank), for the [Operation procedure candidate] (No1 water tank), "1: No1 pump output increase → 100%, 2: No2 pump output increase → 100% completed," 3: No1 inflow valve suppression → Opening 50
% ”...” is displayed, and in the above similar cases in the cause candidate group, “3: No1 inflow valve suppression → opening 50% reduction” was deleted. It is displayed by the display of "Delete" at the end and "Enclosure by a frame".

As described above, according to the second embodiment, the candidate group of abnormality causes and the candidate group of abnormality elimination methods relating to the generated plant abnormality are narrowed down by using similar cases in the past, and then the operator is selected. It is possible to reduce the burden on the operator when the plant is abnormal.

Third Embodiment In the second embodiment described above, the abnormality cause analysis means 10 is used.
2 and the operation procedure derivation means 103 uses the plant abnormality case group similar to the occurring plant abnormality, the plant knowledge such as the equipment configuration and system connection of the plant, and the information about the plant state at that time to identify the plant abnormality. An example has been shown in which the abnormality cause candidate group and the operation procedure candidate group are derived and displayed on the display device 108 to be presented to the operator. However, the third embodiment is included in the derived abnormality cause candidate group and operation procedure candidate group. Each candidate is presented to the operator together with the contents instructed by the operator in the past similar cases in the light of the similar plant abnormality case group. The configuration of the plant operation support system according to the third embodiment is the same as the configuration (FIG. 5) of the plant operation support system according to the second embodiment described above.

The operation and operation procedure deriving means 1 when the anomaly cause analyzing means 102 derives an anomaly cause candidate group will be described below.
The operation when 03 derives the operation procedure candidate group will be described. The anomaly cause analysis means 103 uses the plant anomaly case group received from the plant anomaly case database 105, plant knowledge such as plant equipment configuration and system connection, and information on the plant state at that time to use the above-described embodiment. Similarly to 2, the abnormality cause candidate group of the plant abnormality that has received the symptom from the plant abnormality case database 110 is derived. At this time, the abnormality cause analysis means 102 displays, for each candidate in the abnormality cause candidate group, to the operator on the display device 108 together with the contents instructed by the operator in the past similar cases in light of the plant abnormality case group. The operation procedure deriving means 103 is notified of the symptoms of the plant abnormality, the plant abnormality case group, and the abnormality cause candidate group. The contents instructed by the operator in the similar cases in the past include, for example, in the display area of [Similar case] (No. 1 water tank) in FIG. 1 & 2 ". In addition, ““ (Operation history) Operation procedure 3 & 4 deleted, cause A &
It is also illustrated as "C follow-up deletion"".

In the third embodiment, when the operation procedure deriving means 103 receives the abnormality cause candidate group, in order to eliminate the plant abnormality when it is assumed that each abnormality cause candidate is the true cause of the plant abnormality. The operation procedure candidate group is derived using the plant abnormality case group, plant knowledge such as equipment configuration and system connection of the plant, and information on the plant state at that time. At this time, the operation procedure deriving means 103 displays to the operator, for each candidate in the operation procedure candidate group, the contents instructed by the operator in the past similar cases in the light of the plant abnormality case group.
To be displayed and presented.

For example, in the example of the rainwater treatment plant described in the first embodiment, as shown in FIG. 7, a plant abnormality "the water level of the No. 1 water storage tank is too high" has occurred, and the plant abnormality of the same symptom in the past has occurred. In, for example, it is recorded in the similar plant abnormal case group that the abnormality cause candidate “No1 inflow valve opening excessively large” was deleted by the operator and the operation procedure candidate “No1 pumping pump output increase” was executed by the operator. In this case, the plant operation support system is composed of three candidates of “excessive opening of inflow valve”, “insufficient output of No. 1 pump” and “insufficient output of No. 2 pump”, and the cause of abnormality “inflow” A mark indicating that it has been deleted in the past in "Excessive valve opening" (for example, "Delete" and enclose it with a frame) is displayed in the past as a cause of abnormality "No1 pump pump output is too small". To An abnormal cause candidate group C2 with a mark indicating that the corresponding operation procedure candidate has been executed, and “No1 inflow valve opening suppression” and “No
"1 pump output increase" and "No2 pump output increase"
It is composed of three candidates, and the operation procedure candidate “No1 inflow valve opening control” is a mark that has been deleted in the past and the operation procedure candidate “No1 pumping pump operation enhancement” is executed in the past. The operation procedure candidate group P2 marked with a mark indicating that something has happened is displayed on the display device 108 and presented to the operator.

As described above, according to the third embodiment, the operator selects an appropriate operating method of the plant from the candidate group of the abnormality cause and the candidate group of the abnormality eliminating method regarding the generated plant abnormality. In that case, since similar cases in the past can be used, the burden on the operator at the time of plant abnormality can be reduced.

Fourth Embodiment The first embodiment, the second embodiment, and the third embodiment described above.
In the above, the example in which the derived abnormality cause candidate group and the operation procedure candidate group are independently presented to the operator has been shown, but in the fourth embodiment, the abnormality cause candidate group and the operation procedure candidate group are presented to the operator. In presenting to the operator, the many-to-many correlation between each abnormality cause candidate and each operation procedure candidate is simultaneously displayed on the display device 108 and presented to the operator. The configuration of the plant operation support system according to the fourth embodiment is basically the same as the system configuration (FIG. 1) of the above-described first embodiment.

The operation of the operation procedure deriving means 103 and the above-mentioned many-to-many correlation will be described below. The operation procedure deriving unit 103 derives an operation procedure candidate group in the same manner as the operation in the first embodiment described above, and displays it to the operator.
It is displayed and presented on 8. At this time, the operation procedure deriving means 103
For each candidate in the operation procedure candidate group, the correlation with each candidate in the abnormality cause candidate group received from the abnormality cause analysis unit 102 is presented, and the abnormality by the abnormality cause analysis unit 102 is presented. The display is shown on the display device 108 for the operator so as to link the presentation of the cause candidate group.

For example, in the rainwater treatment plant exemplified in the first embodiment, when a plant abnormality occurs such that the water level of the water tank is too high, the plant operation support system causes the abnormality cause candidate group C and the operation procedure candidates to be set. Group P
From the display area of [Cause candidate] to the display area of [Operation procedure candidate] in FIG. 7, the operation procedure candidate “Inflow valve opening suppression” The arrow pointing to "," the abnormal cause candidate "Insufficient output of the No. 1 pumping pump" and the operation procedure candidate, the arrow pointing to "Increase output of the No. 1 pump", and the abnormal cause candidate "Insufficient output of the No. 2 pump" No2 pumping pump output increase ”
The abnormality cause candidate group C and the operation procedure candidate group P are displayed on the display device 108 and presented to the operator with an arrow pointing to and.

The above-mentioned correlation between the cause of abnormality and the operating procedure is not simple, and depending on the state of the plant or the state of the plant constituent equipment, it does not have a one-to-one relationship but a many-to-many correlation, that is, , Operation procedure 1 & 2 for error cause A
However, the operation procedure 2 for the cause of abnormality B and the operation procedure 1 & 2 & 3 for the cause of abnormality C are valid,
In addition, from the opposite point of view, execution of the operation procedure 1 causes the abnormality A
& C is the cause of abnormality A & B & C due to execution of operation procedure 2.
However, there is a case where the cause of abnormality C has a strong tendency to be eliminated by the execution of the operation procedure 3, and these are determined by the accumulation of past cases, and contribute to the subsequent operation at the time of occurrence of a similar abnormality. An example of the many-to-many correlation between the cause of abnormality and the operation procedure is shown as "cause candidate many-to-many relationship" in the display area of "similar case" in FIG.

As described above, according to the fourth embodiment, the operator can easily visually confirm the correlation between the candidate group of the abnormality cause and the candidate group of the abnormality eliminating method regarding the generated plant abnormality. Therefore, it is possible to reduce the burden on the operator when the plant is abnormal. It should be noted that the same effects as those of the fourth embodiment can be obtained in the above-described second and third embodiments, and in those cases, the same effect as that of the fourth embodiment can be obtained.

As shown in FIG. 7, the reliability of each of the abnormality cause candidate and the operation procedure candidate is also displayed in the [Cause operation candidate reliability] area, so that the operator can refer to this display. By doing so, it is possible to reduce the burden on the operator and to select the abnormality cause candidate and the operation procedure candidate more accurately. The reliability is displayed as "large" when the cause of the abnormality is, for example, a plant equipment failure and the operation procedure in that case is clear, or when the number of selections is clear due to the accumulation of cases so far. If not, it is displayed as “small”.

Further, when an abnormality occurs or the abnormality is resolved, the operator may not always monitor the display device 108. Therefore, the abnormality occurrence and the abnormality elimination can be displayed on the display device 108. Instead, the speaker of the electronic computer 107 is informed by an alarm and a sound or a sound of alarm release.

Further, as described above, when a certain abnormality cause candidate is selected from the abnormality cause candidate group, the information is notified from the abnormality cause analyzing means 102 to the operation procedure deriving means 103, and vice versa. When a certain operation procedure candidate is selected from the candidate group, the information is used as the operation procedure deriving means 10.
When a certain abnormality cause candidate is selected or deleted by being notified to the abnormality cause analysis means 102 from 3, the operation procedure candidate, the similar case, and the cause having a correlation are tracked according to the selection or deletion. The operation candidate reliability, the cause operation candidate many-to-many relationship, etc. are automatically displayed or deleted from the display. Therefore, depending on the type, scale, etc. of the plant, Knowledge database 105, plant abnormality case database 110, which has been thoroughly examined based on the experience knowledge and theory up to
By preparing the abnormality cause analysis means 102, the operation procedure derivation means 103, and the dialogue processing means 106, the burden on the operator can be sufficiently reduced.

[0065]

According to the invention of the plant operation support system described in claim 1, not only the abnormality cause deriving means for inputting the state information of the plant and deriving the cause of the plant abnormality based on the input state information, but also the plant abnormality. Since the operation procedure derivation means for deriving the plant operation procedure for solving the problem is provided, the burden of plant operation by the plant operator is reduced, and further, the abnormality cause derived by the abnormality cause derivation means, and the operation. Since any of the operating procedures derived by the procedure deriving means is displayed, the plant operator can operate the plant with reference to both the cause of the abnormality and the derived operating procedure. This has the effect of further reducing the burden of plant operation.

The invention of the plant operation support system according to claim 2 inputs the state information of the plant and derives a plurality of candidates for the cause of the plant abnormality based on the input state information, and an abnormality cause deriving means. The operation procedure deriving means for deriving a plurality of plant operation procedure candidates for solving the problem, the abnormality cause candidate derived by the abnormality cause deriving means, and the operation procedure candidate derived by the operation procedure deriving means, Since it is displayed in the adjacent area that can be compared, in addition to the effect of the invention described in claim 1, there are a plurality of candidates for the cause of abnormality and candidates for the plant operation procedure. It can handle subtle abnormalities of different types, and even if there are multiple candidates for the cause of abnormality and multiple candidates for the plant operation procedure, the candidate for the cause of abnormality is The effect of load on the plant operation by the plant operator is reduced since the fine plant operation procedure candidates are displayed in the adjacent regions can be compared.

A plant operation support system according to a third aspect of the present invention is the plant operation support system according to the second aspect, which has a plant operation execution means for operating equipment constituting a plant. Since the means executes the plant operation according to the operation procedure selected based on the comparatively displayed abnormality cause candidate and operation procedure candidate, in addition to the effect of claim 2, the operator has a plurality of abnormalities. There is also an effect that the plant operation is executed by selecting an arbitrary abnormality cause candidate and operation procedure candidate from the cause candidate and the plurality of operation procedure candidates.

According to the invention of a plant operation support system described in claim 4, in the plant operation support system according to any one of claims 1 to 3, the status information of the equipment constituting the plant is the cause of the abnormality. Since it is displayed in the adjacent area that can be compared with the candidate and the operation procedure candidate, the plant operator also has the effect of being able to perform more appropriate plant operation while confirming the state of the equipment that constitutes the plant.

The invention of the plant operation support system according to claim 5 is the plant operation support system according to any one of claims 1 to 4, wherein a symptom when a plant abnormality occurs and an abnormality when the abnormality is resolved are provided. It has a plant abnormality case database in which the cause and the operation procedure selected until the abnormality is resolved are recorded, and the plant abnormality cause is derived by the abnormality cause deriving means and the plant abnormality is resolved by the operation procedure deriving means. Since the operation procedure is derived by using the plant abnormality case database, there is also an effect that the plant operation can be accurately performed early based on the operation procedure that can solve the same or similar plant abnormality in the past. Play.

The invention of a plant operation support system according to a sixth aspect is the plant operation support system according to the fifth aspect, wherein the plant abnormality case data is recorded based on the record of the plant abnormality case data base. Since the cause of abnormal recording and the reliability of the operating procedure are displayed on the database, the plant operator can operate the plant depending on the reliability, and therefore the burden of plant operation is further increased. It also has the effect of being reduced.

The invention of the plant operation support system according to claim 7 is the plant operation support system according to claim 5, wherein the contents operated by the operator based on the record of the plant abnormality case data base. Is displayed, the operator can operate the plant while looking at the display when the same or similar abnormality occurs, and therefore, the plant can be operated accurately at an early stage.

The invention of a plant operation support system described in claim 8 is the plant operation support system according to any one of claims 1 to 7, in which, apart from the display,
Since the plant operator is notified of the abnormality,
The operator can know the plant abnormality even if the operator is away from the display device, so that the operator can also operate the plant early because the operator is far from the display device.

According to the invention of the plant operation support system described in claim 9, in the plant operation support system according to any one of claims 1 to 8, the abnormal symptom is displayed. The operator can grasp the detailed contents of the abnormality, and accordingly, there is also an effect that a more accurate early operation can be performed.

The invention of a plant operation support system described in claim 10 is the plant operation support system according to any one of claims 1 to 9, wherein an abnormality elimination display and an abnormality elimination different from the indication are displayed. Since at least one of the notifications is made to be performed, there is an effect that the operator can quickly know the abnormality elimination.

According to the invention of a plant operation support system described in claim 11, in the plant operation support system according to any one of claims 1 to 9, an abnormality cause derived by the abnormality cause deriving means, The plant operation procedure derived by the operation procedure deriving unit is relatively associated with each other, and when an arbitrary cause of abnormality is selected, the plant operation procedure associated with the selected abnormality cause is also selected to follow, When the plant operation procedure is selected, the cause of abnormality associated with the selected plant operation procedure is also selected so as to be selected, so that the burden of plant operation on the plant operator can be further reduced.

According to the invention of a plant operation support system described in claim 12, in the plant operation support system according to any one of claims 1 to 10, an abnormality cause derived by the abnormality cause deriving means, The plant operation procedure derived by the operation procedure deriving unit is relatively associated with each other, and when an arbitrary cause of abnormality is deleted, the plant operation procedure associated with the selected abnormality cause is also deleted following the operation. When the plant operation procedure of is deleted, the cause of abnormality associated with the selected plant operation procedure is also deleted in a follow-up manner. Therefore, there is an effect that the burden of plant operation on the plant operator is further reduced.

The invention of the plant operation support system according to claim 13 is the plant operation support system according to claim 11 or 12, wherein the following relationship between the cause of abnormality and the plant operation procedure is at least one-to-one. Therefore, the cause of the abnormality and the plant operation procedure always follow each other, and accordingly, the work of selecting the cause of the abnormality and the plant operation procedure of the plant operator can be reduced, and the burden on the plant operator of the plant operation is further reduced. It also has the effect of being reduced.

According to the invention of the plant operation support system described in claim 14, in the plant operation support system described in claim 13, the follow-up relationship between the cause of abnormality and the plant operation procedure is displayed. The operator can operate the plant while looking at the display while predicting, and the burden on the plant operator of the plant operation can be further reduced.
There is also an effect that more accurate plant operation is performed.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an example of a plant operation support system showing a first embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of an example of a plant operation support system showing the first embodiment of the present invention.

FIG. 3 is a diagram showing an example of a display screen in the plant operation support system example showing the first embodiment of the present invention.

FIG. 4 is a diagram showing another example of a display screen in the plant operation support system example showing the first embodiment of the present invention.

FIG. 5 is a system configuration diagram of an example of a plant operation support system showing a second embodiment of the present invention.

FIG. 6 is an operation explanatory diagram of an example of a plant operation support system showing the second embodiment of the present invention.

FIG. 7 is a diagram showing an example of a display screen showing a third embodiment and a fourth embodiment of the present invention.

FIG. 8 is a system configuration diagram showing a conventional plant abnormality diagnosis device.

FIG. 9 is a diagram for explaining the operation of a conventional plant abnormality diagnosis device.

FIG. 10 is a diagram for explaining the operation of a conventional plant abnormality diagnosis device.

[Explanation of symbols]

100 plant, 101 plant state monitoring means, 102 abnormality cause analysis means, 103
Operation procedure deriving means, 104 plant operation executing means,
105 knowledge database 108 display device,
108A display screen 108B display screen
109 input device, 110 plant abnormality case database.

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Claims (14)

[Claims] 1. An abnormality cause deriving means for inputting plant state information and deriving a cause of a plant abnormality based on the input state information, and an operation procedure deriving means for deriving a plant operation procedure for eliminating the plant abnormality. A plant operation support system comprising: an abnormality cause derived by the abnormality cause deriving unit and an operation procedure derived by the operation procedure deriving unit. 2. An abnormality cause deriving means for inputting plant state information and deriving a plurality of plant abnormality cause candidates based on the inputted state information, and a plurality of plant operation procedure candidates for eliminating the plant abnormality. A plant operation support system comprising operation procedure deriving means for deriving individual pieces, wherein the abnormality cause candidates derived by the abnormality cause deriving means and the operation procedure candidates derived by the operation procedure deriving means are displayed in adjacent areas where they can be compared. 3. The plant operation support system according to claim 2, further comprising a plant operation executing means for operating a device that constitutes a plant, wherein the plant operation executing means includes the abnormal cause candidate and the operation displayed in contrast with each other. A plant operation support system that executes a plant operation according to an operation procedure selected based on a procedure candidate. 4. The plant operation support system according to any one of claims 1 to 3, wherein status information of equipment constituting a plant is displayed in an adjacent area that can be compared with the abnormality cause candidate and the operation procedure candidate. Plant operation support system. 5. The plant operation support system according to claim 1, wherein a symptom when a plant abnormality occurs, a cause of the abnormality when the abnormality is resolved, and an operation procedure selected until the abnormality is resolved. And a plant abnormality case database in which is recorded. The derivation of the plant abnormality cause by the abnormality cause derivation means and the derivation of the plant abnormality elimination operation procedure by the operation procedure derivation means are performed by the plant abnormality case data. A plant operation support system that is performed using a table. 6. The plant operation support system according to claim 5, wherein an abnormality cause and an operation procedure recorded in the plant abnormality case data base are recorded based on the record of the plant abnormality case data base. A plant operation support system that displays reliability. 7. The plant operation support system according to claim 5, wherein the contents operated by an operator are displayed based on the record of the plant abnormality case data base. 8. The plant operation support system according to claim 1, wherein a plant operator is notified of an abnormality separately from the display. 9. The plant operation support system according to claim 1, wherein an abnormal symptom is displayed. 10. The plant operation support system according to claim 1, wherein at least one of an abnormality elimination display and an abnormality elimination notification different from the indication is performed. 11. The plant operation support system according to claim 1, wherein an abnormality cause derived by the abnormality cause deriving unit and a plant operation procedure derived by the operation procedure deriving unit. Is relatively related, and when an arbitrary cause of abnormality is selected, the plant operation procedure associated with the selected cause of abnormality is also tracked and selected, and when the arbitrary plant operation procedure is selected A plant operation support system that also selects the cause of abnormality associated with the plant operation procedure. 12. The plant operation support system according to claim 1, wherein the abnormality cause derived by the abnormality cause deriving unit and the plant operation procedure derived by the operation procedure deriving unit. Is relatively related, and when any cause of abnormality is deleted, the plant operation procedure associated with the cause of abnormality is also tracked and deleted, and when any plant operation procedure is deleted A plant operation support system that also deletes the cause of abnormality associated with the plant operation procedure. 13. The plant operation support system according to claim 11 or 12, wherein the follow-up relationship between the cause of abnormality and the plant operation procedure is at least one-to-one. 14. The plant operation support system according to claim 13, wherein the tracking relationship between the cause of abnormality and the plant operation procedure is displayed.