JP3493059B2 - Plant operation equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant operating apparatus for promptly recovering a plant and reducing the labor burden on an operator when the plant is abnormal.

[0002]

2. Description of the Related Art FIG. 16 shows a block diagram of a conventional plant operation system.

The illustrated plant operating system 1 comprises an input device 2, a control computer 3 and an external output device 4, and the control computer 3 comprises an input processing section 5, an arithmetic processing section 6 and an external output processing section 7. ing. The external output device 4 includes a CRT monitor 8, a printer 9 and a control output unit 10.

In the plant operating system 1 having the above-described configuration, first, the required analog value and ON / OFF state of the plant are read into the input processing section 5 of the control computer 3 via the input device 2. The arithmetic processing unit 6 determines whether control is started or stopped by the control logic that determines the operation timing condition in advance as the state of the process value and the operation timing condition.

When the arithmetic processing unit 6 determines that the control is started, the arithmetic processing unit 6 outputs information and control signals necessary for control to the external output processing unit 7 and displays an operator message on the CRT monitor 8, while The data is recorded and output to the printer 9, and the control output unit 10 further outputs a control signal to a plant (not shown).

Here, the control logic processing of the arithmetic processing section 6 will be described with reference to FIG.

The control logic calculates a condition consisting of an operation timing condition 101, an operation completion condition 102 and a pre-operation condition 103 for each operation by process data and outputs whether the condition is satisfied or not satisfied. Here, the operation timing condition defines when the operation is performed during plant startup / normal operation / stop. The operation completion condition defines the completion condition of this operation. The pre-operation conditions define various conditions to be monitored when operating the operation target device.

In the control logic, generally, an AND circuit 6b of an NOT circuit 6a for the operation timing condition 101 and the operation completion condition 102 is assembled, and an output of the AND circuit 6b and an AND circuit 6c to which the pre-operation condition 103 is input. It is built in.

In this control logic, the operation timing condition 101 is an ON signal and the operation completion condition 102 is OFF.
AND circuit 6 when signal, pre-operation condition 103 is ON signal
The logical product of b is established, and the logical product of the AND circuit 6c is established. As a result, the operation start guide message 1
04 is created by the CRT output data creation unit 6d1 and displayed on the CRT monitor 8.

After that, when the operation completion condition 102 is satisfied after the operation is started and the signal becomes an ON signal, the logical product of the AND circuit 6b is not established and the logical product of the AND circuit 6c is not established. As a result, the operation is completed, and the operation completion guide message 104 is displayed on the CRT monitor 8.

On the other hand, in the control logic, the ON signal of the operation timing condition 101 and the OF of the operation completion condition 102 are set.
A logical product of the F signal and the ON signal via the NOT circuit 6a is established in the AND circuit 6b. Then, the pre-operation condition 103
0FF signal of ON and AN via the NOT circuit 6e
An AND signal with the ON signal of the D circuit 6b is established in the AND circuit 6f. In this case, it is judged as the pre-condition traffic jam of the operation,
The CRT output data creation unit 6d2 creates the precondition defect message 106 and displays it on the CRT monitor 8.

Next, an example in which the above control logic is applied to the control valve warming of a nuclear power plant will be described with reference to FIG.

First, as the operation timing condition 101, when the main steam pressure is 7 kg / square centimeter or more and the main turbine is reset, the AND condition of the AND circuit 6g is satisfied, and the operation timing condition 101 is satisfied.

If the control valve warming operation as the operation completion condition 102 is not finished yet, that is, if the control valve warming is OFF, the NOT circuit 6a causes the AND circuit 6b to satisfy the logical product condition. .

The MSV (main steam stop valve) seat front drain valve fully open, the CV (control valve) seat front drain valve fully open, which is the pre-operation condition 103 of the control valve warming operation, and the Crandseal steam pressure is 0. When the plant condition of 11 kg / square centimeter or more is prepared, the pre-operation condition 103 is satisfied by the AND circuit 6h.

As a result, the CRT output data creation unit 6
A message for the control valve warming operation is created by d1 and “Start control valve warming” is displayed on the CRT monitor 8.
Is displayed.

Further, when the pre-operation condition 103 is not satisfied, the AND signal of the ON signal of the NOT circuit 6e and the ON signal of the AND circuit 6b is established in the AND circuit 6f. Along with this, the CRT output data creation unit 6d2 creates a pre-conditioning / warming pre-condition traffic jam message,
It is output to the outside. For example, on the CRT monitor 8, a message "precondition failure" is displayed.

In this way, in the arithmetic processing unit 6, when the operation start is determined by the control logic, the control program is activated and the output command value is calculated and output to the preset operation end.

FIG. 19 is a flowchart showing an example thereof. First, necessary control data is read, and then it is judged whether or not the read data is normal (S1, S).
2) At this time, if it is abnormal, the process ends abnormally.

When the read value is normal, it is judged whether or not the target has been reached, and when the target is reached, the process ends normally (S3).
In this case, the CRT monitor 8 displays a message of "completion of valve warming operation completion".

If it has not arrived, then the number of times of completion of control is set in advance, and if it is not completed by performing control for a specified amount or more, it is abnormally terminated. On the other hand, it is determined whether the specified number of times has been exceeded (S
4) When the number of times is equal to or less than the specified number, the output time of the control signal is calculated (S5) and output to the control output unit 10 (S6).

[0022]

However, in the above plant operating apparatus 1, there is very little information for dealing with a plant abnormality, the labor burden on the operator is large, and the recovery work may be delayed due to the plant abnormality. There is a problem.

First, if the plant data is normally input under the operation timing condition as described above,
Each operation is executed and the operation is started normally, and at the same time, appropriate driving operation information is provided to the operator. However, when the plant data used for the operation timing condition is bad, the operation will be congested and no information will be output, so it is not possible to know which operation stopped it and the operator's operation burden and recovery because the cause is unknown. There may be a delay.

Secondly, when the plant does not operate normally in response to the control signal from the plant operating device 1, whether the process of the control program is abnormal or the plant is abnormal is information for pursuing the cause. However, there is a problem that it takes a lot of time to search for the cause because the operator has a large load.

Thirdly, there is a problem that when the control by the plant operation device 1 becomes impossible, it takes a lot of time to search for the plant data and the control signal which cause the trouble.

Fourthly, in the conventional plant operation system 1, the operator has to work while watching the manual of the operation procedure in order to operate, which is one of the causes of the burden on the operator. There is.

Therefore, it is an object of the present invention to provide a plant operating apparatus which is useful for recovery when a plant is abnormal and notifies appropriate information to the operator, thereby reducing the burden on the operator and enabling quick recovery.

[0028]

According to the present invention, an input processing unit for inputting plant data and plant data obtained from the input processing unit are input to a control logic to determine whether a predetermined control condition is satisfied or not satisfied. An output processing unit that outputs a control signal according to the result, and an external output processing unit that outputs a control signal processed by the processing unit to the plant and provides control information to an operator by an output device. In the plant operating device to do, a control logic input point storage unit that saves the input point name and the operation item name of the plant data used in the control logic for each control logic used for the calculation of the control logic as the input point of the plant data, Determine whether the plant data corresponding to the input point stored in this control logic input point storage unit is normal or abnormal and Is the input point name runt data and operation item names and control logic name using the input point that a determination processing unit that notifies to said external output processing unit.

Further, the determination processing unit determines whether the plant data is normal or abnormal, and if there is abnormal plant data, searches the control logic input point storage unit and extracts the corresponding operation item and input point name. Then, means for creating an output list and outputting it to the external output processing unit is provided.

[0030]

[0031]

[0032]

[0033]

[0034]

[0035]

[0036]

According to the invention of claim 1, when the plant data of the input point used for the calculation of the control logic is defective, the output device notifies the operator of the defective input point name and the control logic name. Therefore, when a traffic jam or the like occurs due to the failure of the logical condition of the control logic, the cause can be known, the restoration work can be performed quickly, and the labor of the operator can be reduced.

According to the second aspect of the invention, when the plant data of the input point used for the calculation of the control logic is defective, the output device notifies the operator of the operation item and the name of the input point. Therefore, when traffic jams such as operation timing conditions occur, the cause can be known, restoration work can be performed quickly, and the labor of the operator can be reduced.

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a plant operating system showing a first embodiment of the present invention.

The same reference numerals as those in the conventional example shown in FIG.
The same or corresponding parts are shown in FIG.
A determination processing unit 12 and a control logic input point storage unit 13 are additionally provided in A.

The control logic input point storage unit 13 preliminarily retrieves and stores operation items and input point names for each operation timing condition used in the control logic of the arithmetic processing unit 6. For example, in the A operation timing condition, a condition, b condition, and c condition are set.

When there is an abnormality in the plant data fetched by the input processing unit 5, the judgment processing unit 12 fetches the input point name and the fetched input point name is used by the control logic input point storage unit 13. It is searched for whether or not it is present, and if used, the operation item corresponding to the input point name is extracted and notified to the screen display output processing means 6. The abnormality of the input data is detected by the abnormality detecting unit in the input device 2.

In this configuration, when the operation timing of the control logic of the arithmetic processing unit 6 is abnormal, the abnormal plant data can be notified to the operator, the cause of the progressing congestion of the operation timing can be promptly eliminated, and the labor burden on the operator can be reduced. Can be achieved.

An example in which the first embodiment shown in FIG. 1 is applied to the adjusting valve warming operation and the operation to enter the field breaker will be described with reference to FIGS. 2 to 5.

As shown in the figure, in the control logic 11c of the arithmetic processing unit 6, the operation timing condition 101 for the control valve warming operation is the main steam pressure> 7 kg / square centimeter and the main turbine reset ON. In the control logic 11d, the operation timing condition 101 for the operation to enter the field breaker is that the main turbine rotation speed is higher than or equal to the rated rotation speed.

On the other hand, in the control logic input point storage unit 13, as shown in FIG. 3, the operation item and the input point name of the operation timing condition using the control logic of FIG. Now, save the main steam pressure and the main turbine reset, and in the field breaker on operation,
Each main turbine speed input point is set.

Next, the determination processing unit 12 executes the processing in the procedure shown in FIG. 4, and when the operation timing condition is abnormal, the input name processed by the input processing unit 5 and the input from the input value list are in the BAD defective state. The BAD input value 12d is input, and the corresponding input point name, main turbine reset, is added to the abnormality list 12a.

Subsequently, in the judging section 12b, the abnormality list 1
The main turbine reset set to 2a is retrieved and the control logic input point storage 13 is searched. As a result,
BAD input value 12d in the control logic input point storage unit 13,
That is, it is determined whether the operation item corresponding to the main turbine reset is used in the operation timing condition. In this determination, the main turbine reset is used as the operation timing condition of the control logic input point storage unit 13. Therefore, the determination unit 12b of the determination processing unit 12 creates the output list 12c of the main turbine reset as the input and output of the adjusting valve warming operation.

The external output processing section 7 converts the data in the output list 12c into CRT monitor data and outputs it to the CRT monitor 8 as shown in FIG. The CRT monitor 8 displays the congestion of the control valve warming operation progress and the main turbine reset input abnormality. As a result, the operator can immediately know that the cause of the congestion of the control valve warming operation, which is the operation timing condition of the control logic, is the input abnormality of the main turbine reset.

According to the first embodiment, when the traffic is congested by the control logic, it is possible to quickly know what causes the congestion, and the restoration work during the plant operation can be easily performed to reduce the burden on the operator. Become.

Next, a second embodiment of the present invention will be described with reference to FIG.

The same reference numerals as those in FIG. 16 showing the conventional example in FIG.
6 shows the same portion or a corresponding portion, and FIG. 6 is configured by additionally providing the storage unit 14 and the display processing unit 15 in FIG.

The storage unit 14 stores the plant data input when the control program of the arithmetic processing unit 6 is executed and the result calculated by the control program. The display processing unit 15 converts the data stored in the storage unit 14 into CRT monitor display data and printer output data.

With this configuration, when the control program of the arithmetic processing unit 6 is activated, the plant data used for the processing by the control program and the result data calculated by the control program are stored in the storage unit 14. The data stored in the storage unit 14 is output to the CRT monitor 8 and the printer 9 via the external output processing unit 7. Thereby, the control history data can be displayed during the control or after the control.

Next, the operation of FIG. 6 will be specifically described with reference to FIG. 7. The control program 11b of the arithmetic processing unit 6
It is activated by the calculation result of the control logic 11a. When the control program 11b is activated, the control input data,
That is, plant data and the like for processing and executing the control program are read, and the next read data is written in the storage unit 14 (S11, S12).

Next, it is checked whether the read input is normal or not, and if there is an abnormality, the processing ends abnormally. At this time, if normal, it is determined whether or not the operation amount has already reached the target value. If the target value is reached by this judgment, the process ends normally and C
A message "operation completed" is output to the RT monitor 8 (S13, S14).

In this case, if the target value has not been reached, the number of control completions is set in advance, and if the control is not completed even if the control exceeds the specified value, abnormal termination is performed (S15).

On the other hand, when the number of times is less than the specified number of times, the output time of the control signal is calculated and the output time of the control signal is stored in the storage unit 14 (S16, S17). Then, the external output processing unit 7
Command is output, the process data used in the control program is read after a preset delay time, and a series of processing is repeated (S18, S19).

The processing status of the control program is sequentially written in the storage unit 14 as shown in FIG. 8 until the control program processing is completed. That is, 1 is stored in the storage unit 14.
At the second time, setter position signal 10.0k, main steam pressure signal 1
It is saved from the first time to the n-th time in sequence, such as 0.0 k and the output time of the control computer is 4 sec.

The display processing unit 15 takes in data from the storage unit 14 and converts it into data for displaying as a trend graph as shown in FIG. 9, and the external output processing unit 7
It is displayed on the CRT monitor 8 via. The display processing unit 15 can also be represented by a digital value. 1
07 is a positioner position signal, 108 is a main steam pressure signal, 10
Reference numerals 9 respectively indicate control signals.

According to the CRT monitor screen 8 of FIG. 9,
Control signal 109 from control computer 3 (ON-O of a certain width)
It can be seen that the setter position signal 107 rises in a constant curve with respect to the FF output signal) and the main steam pressure signal 108 is added.

As described above, according to the plant operation device, it is determined whether the condition of the plant side is insufficient at the time of the control interruption or whether the processing of the control program is abnormal, and the burden on the operator is reduced. Further, since it can be displayed even while the control program processing is being executed, the burden on the operator is further reduced.

Next, a third embodiment of the present invention will be described with reference to FIG.

The same reference numerals as those in FIG. 16 showing the conventional example in FIG. 10 indicate the same or corresponding portions. In FIG. 10, a guide display section 16 and a guide data section 17 are additionally provided.

The guide data unit 17 stores in advance the data necessary for the investigation regarding the control interruption factor. The guide display unit 16 extracts the survey item data for the related control interruption factor from the guide data unit 17 and outputs it to the external output processing unit 7.

With this configuration, in the item controlled by the arithmetic processing unit 6, when the control of each control output unit becomes abnormal and the control is interrupted, the guide display unit 16 is notified of the control abnormality occurrence factor. The guide display unit 16 takes out survey item data for a control interruption factor preset in the guide data unit 17 and outputs it to the CRT monitor 8 via the external output processing unit 7. In this way, it is possible to display the related information according to the control abnormality.

Here, a specific example of the third embodiment will be described with reference to FIGS. 11 and 12, the control program 11b of the arithmetic processing section 6 is activated by the judgment result of the control logic 11a. When the control program 11b is activated, the control input, that is, the process data or the like used for executing the control program processing is read. It is determined whether the read process data is normal.

In this case, for example, in the processing of the control program, if each input signal of the setter position and the main steam pressure is taken in, it is judged whether or not each input signal is normal,
If it is determined to be abnormal, the guide display unit 16 is notified.
The guide display unit 16 retrieves guide information preset in the guide data unit 17.

First, when it is determined that the setter position input is abnormal, the guide data section 17 stores the guide data corresponding to the setter position input information. Guide display section 16
Via the external output processing unit 7 as shown in FIG.
Display on T monitor 8.

On the CRT monitor 8, as shown in FIG. 12, "bat location XX" is input as setting device position input information.
Board number XX and sensors are displayed. In this way, when the control becomes abnormal, necessary guide information can be easily obtained, and the cause pursuit work can be reduced.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

FIG. 13 shows a conventional example, and the same reference numerals as those in FIG. 16 indicate the same or corresponding portions. In FIG. 13, a determination processing section 19 and a driving procedure table 18 are additionally provided in FIG.

The judgment processing section 19 is for taking out the driving procedure information corresponding to the break point during execution of processing in the control logic of the arithmetic processing section 6.

The operation procedure table 18 stores plant operation procedure information for each break point.

With this configuration, the operation procedure table 18 contains
The operation procedure of the breakpoint corresponding to each operation timing by the control logic of the arithmetic processing unit 6 is set. The determination processing unit 19 inputs the plant data into the input device 2
Is read via the input processing unit 5 and the operating procedure information corresponding to the operation stored in the operating procedure table 18 is taken out, notified to the external output processing unit 7, and output to the CRT monitor 8.

Therefore, the operating procedure information of the breakpoint including the guidance corresponding to the operation timing of the control logic of the arithmetic processing unit 6 can be displayed on the CRT monitor 8.

Next, an example in which the fourth embodiment is applied to the adjusting valve warming operation will be described with reference to FIGS. 14 and 15.

First, the arithmetic processing unit 6 reads the plant data through the input processing unit 5, executes the logic judgment of the control logic, and when the operation timing condition is satisfied, the control valve warming operation start notification is sent to the judgment processing unit 19. Is passed to. Accordingly, the determination unit 19b of the determination processing unit 19
The operating procedure table 18 shown in FIG. 15 is searched for the operating procedure information corresponding to the operation, and the retrieved operating procedure information is set in the output list 12c. Subsequently, the external output processing unit 7 converts the driving procedure information set in the output list 12c into CRT monitor data and outputs it to the CRT monitor 8.

Here, in the operating procedure information of the control valve warming of the operating procedure table 18, the operating information that the control valve warming operation is completed when the main steam pressure becomes 7 kg / cm 2 or more after the first HPCS is started. Has been saved. At this time, the guidance is stored that "the water supply during HPCS in-service is not performed rapidly, and abrupt cold water may cause an increase in neutron flux".

Further, the operation procedure information of the reactor pressure control in the operation procedure table 18 indicates that "When the main steam pressure becomes 10 kg / cm 2 or more, the reactor pressure control is started, and at this time, the pressure setter output is the main output. Steam head pressure + 2k
Track to g / square centimeter. Next, it is judged whether or not the main steam pressure has become 20 kg / square centimeter or more. "

As described above, the content of the driving procedure is displayed on the CRT together with the guidance for each break point. As a result, the operator can grasp what operation, confirmation, and inspection item is next, and thus the work is facilitated and the burden on the operator is reduced.

[0088]

As described above, according to the invention of claim 1, when the plant data of the input point used for the calculation of the control logic is defective, the output device notifies the operator of the defective input point. When a traffic jam or the like of the operation timing condition occurs, the cause can be known, the restoration work can be performed quickly, and the labor of the operator can be reduced.

According to the second aspect of the invention, when the plant data of the input point used for the calculation of the control logic is defective, the operation item and the input point are notified to the operator by the output device, so that the operation timing condition is congested. When a problem occurs, the cause can be known, the recovery work can be performed quickly, and the labor of the operator can be reduced.

[0090]

[0091]

[0092]

[0093]

[0094]

[0095]

[Brief description of drawings]

FIG. 1 is a configuration diagram of a plant operating system showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of the arithmetic processing unit of FIG.

FIG. 3 is an explanatory diagram showing a control logic input point storage unit of FIG. 1.

FIG. 4 is an explanatory view showing the operation of FIG.

5 is an explanatory diagram showing an example of the CRT monitor screen of FIG. 1. FIG.

FIG. 6 is a configuration diagram of a plant operating system showing a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an operation of the arithmetic processing unit of FIG.

8 is a configuration diagram showing an example of a storage unit of FIG.

9 is an explanatory diagram showing an example of the CRT monitor screen of FIG.

FIG. 10 is a configuration diagram of a plant operating system showing a third embodiment of the present invention.

11 is an explanatory diagram showing the operation of FIG.

12 is an explanatory diagram showing an example of a CRT monitor screen of FIG.

FIG. 13 is a configuration diagram of a plant operation system showing a fourth example of the present invention.

FIG. 14 is an explanatory diagram showing a specific operation of FIG.

15 is an explanatory diagram showing a driving procedure table of FIG.

FIG. 16 is a configuration diagram of a plant operation device showing a conventional example.

FIG. 17 is an explanatory diagram showing an operation of the arithmetic processing unit of FIG. 16.

18 is an explanatory diagram showing a specific example of the arithmetic processing unit of FIG.

FIG. 19 is an explanatory diagram showing a processing example of the control program of FIG.

[Explanation of symbols]

1 Plant operation equipment 2 input devices 3A-3D control computer 4 External output device 5 Input processing unit 6 Arithmetic processing unit 7 External output processing unit 8 CRT monitor 9 Printer 10 Control output section 12 Judgment processing unit 13 Control logic input point storage 14 Memory 15 Display processing unit 16 Guide display 17 Guide data section 18 Operating procedure table 19 Judgment processing unit

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G05B 23/00-23/02

Claims (2)

(57) [Claims] 1. An input processing unit for inputting plant data, and plant data obtained from this input processing unit are input to a control logic to determine whether or not a predetermined control condition is satisfied, and to perform control according to the result. In a plant operation device comprising an arithmetic processing unit that outputs a signal and an external output processing unit that outputs a control signal processed by the arithmetic processing unit to the plant and provides control information to an operator by an output device, the control A control logic input point storage unit that stores the input point name and the operation item name of the plant data used in the control logic for each control logic used for the logic calculation as the input point of the plant data, and the control logic input point storage unit. Input point name of abnormal plant data by judging normality / abnormality of the plant data corresponding to the saved input point Plant operation apparatus, characterized in that it comprises a an operation item name and determination processing unit for notifying the control logic name using the input point to the external output unit. 2. The determination processing unit determines whether the plant data is normal or abnormal, and if there is abnormal plant data, searches the control logic input point storage unit and extracts a corresponding operation item and input point name. 2. The plant operation apparatus according to claim 1, further comprising means for creating an output list and outputting it to the external output processing unit.