JPH0526702A - Monitor-control apparatus for plant - Google Patents

Abstract

PURPOSE:To estimate the response of a plant to an arbitrary operation of working by simulative computation and to enable selection of a more appropriate operation of working on the basis of information on this estimation. CONSTITUTION:An input processing element 5 to which process data from a plant 4 are inputted and a mode control element 6 which sets a monitoring- controlling apparatus of the plant in a monitoring mode or an estimation mode are provided. Moreover, a simulative computation element 7 which estimates a responsive operation of the plant 4 to the data on operations of apparatuses inputted through the intermediary of a working console 3, using as initial values the data on the state of the plant inputted to the input processing element 5, on the basis of an estimation mode signal from the mode control element 6, and a display control element 8 which makes a display element 1 display the actual data on the state of the plant being the process data from the plant 4 or the simulated data on the state of the plant from the simulative computation element 7, according to a control mode set by the mode control element 6, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring control device for controlling operation of a plant and monitoring it.

[0002]

2. Description of the Related Art As a monitoring device in a conventional plant (for example, a nuclear power plant), a process computer or the like is used, and a current state such as a plant process value or an operating condition of plant equipment is displayed on a display device such as a CRT display device. It was shown on the alarm device, indicator, recorder, etc. The plant operator judges the plant state from these pieces of information and executes an appropriate operation operation based on the operation procedure manual.

However, for example, when there are a plurality of driving operations that can be taken in a certain operating state within the range of the operating procedure manual, and when the optimum operating operation is selected from among these, the operator is required to operate in the current plant condition. It is necessary to know the change in the plant response when the above operation is performed before the operation is performed.

Conventionally, since this kind of prediction information has not been prepared, the operator has selected a driving operation based on past experience, driving training and the like.

[0005]

As described above, conventionally, the prediction of the plant response to each operation is performed based on the past experience of the operator, the operation training, etc., and the judgment is different depending on the operator. There was also. Therefore, if quantitative prediction information of the plant response to each operation can be obtained, more appropriate operation can be selected, and it is expected that the operation reliability will be improved without being affected by the ability of the operator. You can

The present invention has been made in view of the above circumstances, and predicts a plant response to an arbitrary driving operation by using a plant simulator that operates faster than real time, and based on this prediction information, a more appropriate An object of the present invention is to provide a plant monitoring control device that enables selection of operation.

[0007]

In order to achieve the above object, the present invention comprises input / output display means for inputting equipment operation data of a plant and displaying plant state data on a screen. In a plant monitoring control device for monitoring, plant data input processing means for inputting plant state data from a plant, and plant status data input by this plant data input processing means are input via input / output display means. When a plant simulation calculation means for performing a simulation calculation of a change in the plant state with respect to the equipment operation data to be predicted and a plant state prediction request input through the input / output display means are discriminated, a prediction mode signal is generated and input. Equipment operation data input via output display means is simulated without sending to the plant Mode control means for sending to the calculation means and plant state data from the plant are displayed on the screen of the input / output display means, and when the prediction mode signal from the mode control means is discriminated, the plant is simulated by the plant simulation calculation means. Display control means for displaying status data on the screen of the input / output display means is provided.

[0008]

In the present invention, the simulated operation means can provide the operator with plant response information for the operation of the equipment faster than the real time, so that the operator can select an operation more appropriate than before. Driving reliability can be further enhanced.

Further, regarding the means for providing information to the operator, the mode control means switches between the simulation information (plant response information using the simulated computing means) and the monitoring information of the actual plant process, and the normal operation is performed. Since the display is provided on the same screen of the input / output display means used, the operator can easily obtain the monitoring and prediction information.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a plant monitoring control apparatus according to an embodiment of the present invention. An operating console (input / output display unit) 3 having a display unit 1 and an input unit 2 such as a device operation switch, and a plant 4 are shown. An input processing unit 5 for inputting process data from the above, a mode control unit 6 for setting the plant monitoring control device in a monitoring mode or a prediction mode,
A simulation calculation unit 7 that predicts the response operation of the plant 4 to the equipment operation data input via the operation console 3 by using the plant state data input by the input processing unit 5 as an initial value by the prediction mode signal from the mode control unit 6. And a display control unit 8 for displaying on the display unit 1 the actual plant state data which is the process data from the plant 4 or the simulated plant state data from the simulated calculation unit 7 according to the control mode by the mode control unit 6. Composed.

In the plant monitoring and controlling apparatus having the above-mentioned structure, the input processing section 5 periodically inputs the process data from the plant 4 and transmits the process data to the simulation calculating section 7.

In the mode control unit 6, the mode control circuit 11
Whether the control mode of the plant monitoring controller is the plant monitoring mode (M mode) based on the alarm data from the plant indicating whether the plant is in the normal state and the presence or absence of the plant state prediction request from the operator. (P mode) is determined. In the monitoring mode, the operation operation of the plant can be performed by the operation console 3, and in the prediction mode, the equipment operation performed by the operation console 3 corresponds to the simulation calculation unit 7.

The logic for mode determination in the mode control unit 6 will be described based on the operation logic of the mode control circuit 11 shown in FIG. The mode control circuit 11 inputs the alarm data from the plant 4 and is in the “alarm-free state (that is, the plant is in a normal state)” and “the plant state prediction request is made” by the operator, or
If "alarm has occurred" and the operator "alarm bypass switch is ON" and "plant state prediction request", the prediction mode (P mode) is set; otherwise, it is determined to be the monitoring mode (M mode). To do.

In the mode control unit 6, the mode control circuit 11
The data transmission switches 12 and 13 between the plant 4 or the simulation calculation unit 7 and the operation console 3 are switched based on the prediction or monitoring mode signal from. That is,
When the mode signal is the monitoring mode (M mode), the switches 12 and 13 are both switched to the M side,
The display device 1 on the operation console 3 includes all the plants 4
The actual data from is displayed and the operation signal from the device operation switch on the operation console 3 is transmitted to the plant 4. When the mode signal is the prediction mode (P mode), the data transmission switches 12 and 1 of the mode control unit 6
The 3 switches are both switched to the P side, and the display unit 1 on the operation console 3 displays all the simulation prediction data from the simulation calculation unit 7 and operation signals from the device operation switches on the operation console 3. Are all transmitted to the simulation calculator 7.

Further, the mode signal from the mode control circuit 11 is also transmitted to the simulation calculator 7 and the display controller 8. The mode signal transmitted to the simulation calculation unit 7 activates the simulation calculation unit 7, and the mode signal transmitted to the display control unit 8 simulates whether the information displayed on the display unit 1 is actual information in the plant. It is used to distinguish whether it is information.

The simulation calculation unit 7 is for predicting a plant response to an arbitrary device operation, simulated failure, etc. faster than real time, with the current plant state as an initial state. It has a built-in mathematical model that can simulate the above.

The operation of the simulation calculator 7 will be described with reference to the flow chart of FIG. First, plant state data is input from the input processing unit 1 (101), and initial value data required for simulation is set in a predetermined data area in the simulation calculation unit 7 (102). This is not the initial value data prepared in advance, but the process value at the present time of the plant is used as the initial value, so that more accurate plant response calculation can be performed. Next, the mode signal from the mode control unit 6 is input (103). If this mode signal is the prediction mode (non-monitoring mode), the input of the plant state data from the input processing unit 1 is stopped and the current setting is made. With the latest plant status data being set as an initial value, a simulated operation signal that changes the plant response such as simulated device operation or simulated failure is input by the device operation switch on the operation console 3 (104). This is, for example, "how many minutes from the present time ... stop the pump", "... the valve does not open even if there is a request for opening".

When a simulated operation signal is input, a future plant state predicted from the present plant state is periodically calculated (105) in real time according to a mathematical model incorporated in advance, and the display controller 8 The simulated plant state data that is the calculation result is transmitted to (106). This prediction calculation is similarly repeated for a predetermined number of different simulated operations (107), and when the prediction calculation is completed for all the predetermined simulated operations, the process returns to the plant state data input (108).

The display control unit 8 distinguishes the actual process information from the plant 4 or the simulation prediction information from the simulation calculation unit 7 based on the mode signal from the mode control circuit 11 and transmits it to the display unit 1 on the operation console 3. To do.

A display unit 1 on the operation console 3, for example, C
The RT display device, the liquid crystal display device, and the like display the output data from the display control unit 8 and, in order to prevent the operator from confusing the actual plant data or the simulator data, in the prediction mode, The prediction mode is displayed on the display screen.

As described above, according to this embodiment,
For example, even when there are a plurality of operation operations that can be performed in a certain operation state within the range of the operation procedure manual, the plant operation changes when these operation operations are performed are quantitatively predicted in advance by the simulation calculation unit 7. Therefore, the optimum driving operation can be selected. Further, even if an equipment failure occurs in the plant, a change in the plant state due to the equipment failure can be predicted quickly by the simulation calculation unit 7. Therefore, what should be done to perform the best plant operation? It is possible to increase the reliability of plant operation by performing optimum equipment operation.

[0022]

As described above, according to the plant monitoring and controlling apparatus of the present invention, the operator can quantitatively change the plant state when the arbitrary plant operation is performed from the current plant state. Since it is possible to know at high speed, it is possible to evaluate and confirm in advance the pros and cons of the driving operation prior to the actual driving operation. Therefore, erroneous operation can be prevented more than ever, and it becomes possible to maintain and improve the operational reliability.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a plant monitoring control device of the present invention.

FIG. 2 is a diagram showing an operation logic of a mode control circuit in a mode control unit.

FIG. 3 is a flowchart showing an operation of a simulation calculation unit.

[Explanation of symbols]

 1 ………… Display unit 2 ………… Input unit 3 ………… Operation console 4 ………… Plant 5 ………… Input processing unit 6 ………… Mode control unit 7 ………… Simulation calculation unit 8 ………… Display control Part 11: Mode control circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location G21C 17/00 G21D 3/04 B 7808-2G // G05B 23/02 302 V 7208-3H

Claims (1)

Claim: What is claimed is: 1. A plant monitoring control device for inputting equipment operation data of a plant and displaying input / output display means for displaying plant status data on a screen, wherein the plant monitoring control device controls and monitors the plant. From the plant data input processing means for inputting the plant status data from the, and based on the plant status data input by the plant data input processing means, the change of the plant status with respect to the equipment operation data input through the input / output display means When a plant simulation calculation means for performing a simulation calculation and a plant state prediction request input via the input / output display means are discriminated, a prediction mode signal is generated and input through the input / output display means. Sending device operation data to the plant simulation calculation means without sending it to the plant When the mode control means and the plant state data from the plant are displayed on the screen of the input / output display means, and when the prediction mode signal from the mode control means is determined, the simulation simulated by the plant simulation computing means is performed. A plant monitoring control device, comprising: display control means for displaying plant state data on the screen of the input / output display means.