JPH09134213A - Plant state visualization system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a visualization system which can visualize the internal state of a plant which is not visualized. SOLUTION: When data is received from a plant operation/monitoring system, the simulation correction model 7 of a computer 6 corrects the plant state estimation model of a plant simulation model 8 and simulates a correction result again. A plant value in a plant state, which is not detected by the detector of a real plant and which cannot be viewed by an operator, is generated and the process value is displayed on a visualization device 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant state visualization system for visualizing an internal state of a plant which is not visualized to an operator in an industrial plant.

[0002]

2. Description of the Related Art Conventionally, regarding the operating state of an industrial plant, it is possible to confirm the process parameter value detected by a detector or the like, but the internal state of the plant, for example, the process such as void rate or boiling start point. It was almost impossible to confirm the values.

[0003]

However, such parameters obtained from the inside of the plant are effective for operation and monitoring in plant operation, and there is a strong need to display them.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a plant state visualization system capable of visualizing an internal state of a plant which is not visualized.

[0005]

According to the first aspect of the present invention,
When the plant actual data is received, the plant state estimation model is corrected by the data, and the correction result is re-simulated, whereby the process value of the plant state that is not detected by the detector of the actual plant and cannot be seen by the operator. Is generated and these process values can be displayed. As a result, according to the first aspect of the present invention, it is possible to visualize parameters that are not normally seen by the operator, and to provide the operator with parameters that are advantageous for monitoring.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a plant state visualization system to which the present invention is applied. In the figure, reference numeral 1 denotes a plant operation / monitoring system. The plant operation / monitoring system 1 generates and outputs a plant parameter and a switch operation signal by an operator.

The plant operation / monitoring system 1 includes
A computer 4 is connected via the plant parameter input interface 2 and the operation input interface 3.
The plant parameter input interface 2 sends the plant parameters imported from the plant operation / monitoring system 1 to the computer 4, and the operation input interface 3
Sends a switch operation signal of an operator in the plant operation / monitoring system 1 to the computer 4,
The data from these interfaces 2 and 3 are periodically transferred to the.

The computer 4 has a boundary condition input interface task 5 and a plant state estimation model task 6. The boundary condition input interface task 5 receives data transferred from the plant operation / monitoring system 1 and sends the received data to the plant state estimation model task 6.

The plant state estimation model task 6 has a simulation correction model 7 and a plant simulation model 8, and the simulation correction model 7
Receives the data of the plant parameter and the switch operation signal periodically transmitted from the boundary condition input interface task 5, and corrects the calculated value of the plant state estimation model of the plant simulation model 8 with these data. Then, the plant simulation model 8 re-simulates this correction result to generate a plant state process value that is not detected by the detector of the actual plant and cannot be seen by the operator.

Further, the plant simulation model 8
A visualization device 9 such as a display is connected to the process value of the plant state calculated by the plant simulation model 8 (for example, void ratio or boiling point starting point).
Is displayed on the visualization device 9 so that the operator can visualize the inside of the plant.

Next, the operation of the above-described embodiment will be described. In this case, the plant operation / monitoring system 1
When the plant parameters are fetched via the plant parameter input interface 2 and the switch operation signal by the operator is fetched via the operation input interface 3, these data are periodically transferred to the computer 4.

In the computer 4, when these boundary data are received by the boundary condition input interface task 5, the data received here are sent to the plant state estimation model task 6, and the simulation correction model 7 causes the plant state estimation model of the plant simulation model 8 to be transmitted. Is corrected, and re-simulation is performed by the plant simulation model 8 to generate a plant state process value that is not detected by the detector of the actual plant and cannot be seen by the operator. Then, each process value generated by the plant simulation model 8 is displayed on the visualization device 9.

FIG. 2 is a flow chart showing the processing process in the computer 4. in this case,
It is assumed that the plant simulation model 8 in the plant state estimation model task 6 regularly performs a simulation of the plant state. First, step 20
In step 1, when the execution of the simulation of the plant state is instructed, it is determined in step 202 whether the simulation correction timing has come. If the simulation correction timing has not come, the next simulation is waited for.

On the other hand, if it is determined in step 202 that the simulation correction timing has come, step 2
In 03, the simulation correction model 7 receives the plant parameter and the switch operation signal transferred via the boundary condition input interface task 5, places them in a predetermined memory area of the plant simulation model 8, and calculates the plant state estimation calculation value. To correct.

Then, in step 204, the plant simulation model 8 re-simulates these correction results until each parameter converges, so that the plant cannot be detected by the detector of the actual plant and cannot be seen by the operator. Generate a process value for a state.

FIG. 3 and FIG. 4 concretely explain a correction method in such a simulation calculation. In this case, FIG. 3 shows a case of a normal simulation calculation, each parameter in such a simulation state is shown by nodes 14 to 16, and a physical calculation process is shown as a link by arrows 17 to 20.

Here, the meanings of the link arrows 17 to 20 mean that the parameters of the link upstream arrow are calculated by physical calculation using the parameters of the link downstream.
Then, in the plant simulation model 8, a normal simulation calculation is performed with such a structure including the nodes 14 to 16 and the link arrows 17 to 20, but when the timing of correction of the simulation comes, the state of the simulation changes. As shown in FIG.

In this case, the link arrows 17 '...
Reference numeral 20 ′ indicates suspension of physical calculation, and boundary links 21 and 22 indicated by solid lines indicate correction operation by forced input of the simulation correction model 7.

When the correction by the simulation correction model 7 is completed, the configuration in FIG. 3 is returned to and the convergence execution of the simulation is calculated again. Therefore, by repeating these simulation states of FIGS. 3 and 4, process values in a plant state that cannot be detected by the detector of the actual plant and cannot be seen by the operator will be generated.

[0020]

As described above, according to the present invention, it is possible to visualize the parameters which the operator normally imagines in his / her head but which cannot be normally seen, so that the burden on the operator can be reduced. It can be greatly useful for preventing driving errors in handling driving operations.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a processing process on a computer according to an embodiment.

FIG. 3 is a diagram illustrating a correction method in a simulation calculation according to an embodiment.

FIG. 4 is a diagram illustrating a correction method in a simulation calculation according to an embodiment.

[Explanation of symbols]

 1 ... Plant operation / monitoring system, 2 ... Plant parameter input interface, 3 ... Operation input interface, 4 ... Computer, 5 ... Boundary condition input interface task, 6 ... Plant state estimation model task, 7 ... Simulation correction model, 8 ... Plant Simulation model, 9 ... Visualization device.

Claims (1)

[Claims] 1. When receiving actual plant data, the plant state estimation model is corrected by the data, and
By re-simulating the correction result, process values of the plant state that are not detected by the detector of the actual plant and cannot be seen by the operator are generated, and these process values can be displayed. Visualization system.