JPS62194275A - Plant simulator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a plant simulator for learning the behavior and operation of a power plant.

[Technical background of the invention and its problems] In order to perform plant operation training and learning of dynamic characteristics, the dynamic characteristics and control functions of an actual plant are simulated by a computer, and the results are used to simulate the dynamic characteristics and control functions of an actual plant. A plant simulator is known that enables operation training equivalent to that of an actual plant by outputting data to a simulated control panel.

One of the functions of this plant simulation device is to prevent erroneous activation of auxiliary equipment such as pumps and valves that make up each system of Plan I, malfunctions, burnout of alarm system indicator lamps, and changes in plant process data. It has a state change function that simulates changes in the state of the plant and learns changes in plant behavior and corresponding operations.

When executing this state change function with a conventional simulation device,
The instructor must enter the PID (POI) that identifies each device to be changed, that is, plant auxiliary equipment such as pumps and valves, and equipment located in each part of the plant such as various detectors.
The changes to the ENTIFICATION) numbers and their states were done by manually inputting letters, codes, etc. representing their types and numbers one by one from the instructor's console.

However, since there are many devices in the plant, the PIDN of the desired device is selected from the file list.
The task of searching for a is difficult unless one is familiar with the plant, and there is a problem in that an operator trainer cannot simply perform state change operations and easily conduct plant operation training.

[Object of the Invention] An object of the present invention is to provide a plant simulator that allows even a beginner to easily perform a state change operation.

[Summary of Umei] For this reason, the present invention displays a plant system diagram on the display screen so that the equipment whose status is to be changed can be selected, and when the selection operation is performed, a status change screen is displayed, and the status of the selected equipment is displayed. It is characterized by the ability to set state changes.

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

FIG. 1 shows a configuration diagram of a plant simulator according to an embodiment of the present invention. In this figure, CRT display device f! 1 displays a screen such as a system diagram to which the plant component equipment whose state is to be changed belongs or a state change screen for selecting and operating the object and type of state change.

A touch screen 2 is installed on the CRT display device 1, and the learner uses the touch screen 2 to perform selection operations from the screen on the display device 1.

The signal processing device 3 receives the signal a from the touch screen 2, and if it is a signal specifying a state change mode, it sends a signal S, and if it is a signal specifying a state change target, it sends a signal C, If the signal designates the type of state change, the signal d is output; if the signal designates execution or cancellation of the state change, the signal e is output.

The state change target selection device 4 receives the selection signal C, determines the state change target, and outputs a target selection signal f to the display control device 8, which will be described later.

The state change type selection device 5 receives the selection signal d, determines the type of state change, and outputs a selection signal g to the display control device 8.

State change execution l release device! ! 6 receives the operation signal e.

The target of the state change and its type are extracted by the signal and i, and a request signal j for execution or cancellation of the state change is sent to the simulated arithmetic unit 7.

Mock calculation bag v! 17 is a state change execution/cancellation request signal j
Accordingly, plant simulation calculations are executed during state changes and during normal operation, and the results are outputted to the display control device 8 using a signal k and to the alarm device 9 using a signal a.

The display control device 8 is a device that receives the two types of state change objects or the simulated calculation results, and displays the results on the CRT display device 1 in the form of numbers, characters, or marks.

A screen operation switch 10 is also connected to this device.

With the above configuration, when it is desired to cause a state change such as a plant equipment failure, the screen operation switch 10 is operated to display the plant system diagram to which the plant equipment belongs. for example,
If it is desired to perform a simulated plant operation in a state where the turbine bypass valve is stuck, the plant system diagram to which the turbine bypass valve belongs, ie, the turbine system diagram, is selected using the screen operation switch IO and displayed on the CRT display device 1.

Next, look at the display screen and touch the displayed turbine bypass valve from above the touch screen 2. At this time, the signal generated from the touch screen 2 is transmitted from the signal processing device 3 to the display control device 8, so that the display control device 8 displays the state change screen as shown in FIG.
T display device i! Display on 1.

The operator trainer looks at this display screen and first touches the display part of the state change mode designation switch 201 in order to change the state of the plant equipment. Then, as shown in FIG. 3, the signal processing device 3 judges that the signal a generated from the touch screen 2 is incorrect (301), and since the signal input at this time is a state change mode designation, it will not be used as a future input signal. are all treated as state change mode signals (3
02).

Next, since the plant equipment whose state should be changed is a turbine bypass valve, the operator trainer touches the valve display portion of the state change target selection switch 202, 203. At this time, if it is desired to change the atmospheric temperature, atmospheric pressure, etc. as a state change target, touch the corresponding display VJ point 203 and operate the numeric keypad 205 to set the desired value to 210. Then, the signal processing device 3 determines that the signal a generated from the touch screen 2 is a signal in the state change mode (303), and further determines the content of the input signal (304). Since this is a selection of a change target, this signal C is input to the state change target selection device 4. The state change target selection device 4 stores the contents of this signal C in an internal table (305).

Furthermore, when the operator trainer touches the stuck display part of the status change type selection switch 204 that indicates that the turbine bypass valve is stuck, the operator receives a status change type selection signal d from the touch screen 2 (No. 4 is a status change type selection signal d in the signal processing device 3). It was judged (30/I
), its contents are state change type selection 'Fllll! 5 (305).

Thereafter, the operator trainer determines when the turbine bypass valve becomes stuck and when he wants to release it, and then touches the execution timing switch 206 and the release timing switch 207 at those times.

Touch the numeric keypad 205 to set the fields 208 and 209, respectively. Then, signal a from touch screen 2
is determined to be the state change execution/cancellation signal e in the signal processing bag @3 (304), and its contents are input to the state change execution/cancellation device 6 and stored.

Finally, since the driver trainer has completed the state change setting operation, he touches the state change mode designation switch 201 again to cancel the mode designation. Then, the display on the CRT display device 1 can be selected by operating the screen operation switch 1o, and the operator trainer selects the desired plant system from the display control device 8 to the touch screen 2 by operating the screen operation switch 1O. At the same time as displaying the diagram, the display control device 8 also sends a signal m to the simulation calculation device 7 to start the plant simulation.

This simulated computing device! ! During the plant simulation by I7.

The state change execution/cancellation device 6 monitors the time, and when the execution timing time set using the above-mentioned state change screen is reached, the state change execution signal is sent as the signal j to the simulated calculation device 7.
(306 in Figure 3). Also.

At the same time, an instruction to save the current simulation data is given to the simulation'/gL'R device 7 (307).
, the state change target selection device 4. Status change type selection device! ! The state change target data saved in the internal table of 5,
The state change type data is taken out and sent as a signal j to the simulated arithmetic unit @7, the state of the internal table is changed and set, and the simulated arithmetic unit 7 is caused to execute the simulation to the plan 1 whose state has been changed (308). In other words, a simulated arithmetic unit! ! ! After this point, a plant simulation is executed assuming that the turbine bypass valve is stuck.

In this way, while the simulation 15 arithmetic unit 7 is executing the simulation to Plan 1 with the state changed, the state change execution/cancellation device 6 monitors the time again, and when the previously set release timing time is reached, the state change execution/cancellation device 6 cancels the simulation. Output the signal to the simulated calculation device 7 (
306). Next, the state of the internal table in which the restored data is changed to the simulation data and the destination of the simulated arithmetic operation device 7 is restored to its original normal state (309). Furthermore, by resetting each part using the simulation data previously saved in the simulation calculation device 7, the plant simulation is returned to the state immediately before the state change was executed, and the money transfer state change mode is canceled (310). .

As described above, in this embodiment, all operations for selecting, executing, and canceling changes in the status of each part of the plant can be performed with simple operations from the display screen and touch screen. This eliminates the need for the conventional complicated operations of flipping through multiple files to find the desired plant equipment, and even beginners who do not have deep knowledge of the entire plant can easily change the status and operate the plant. It becomes possible to self-study the training.

Incidentally, in the above embodiment, an example was explained in which a touch screen was used as the operation %2I, but it can be performed using a light pen, a cursor, or the like.

[Effects of the Invention] As described above, according to the present invention, all operations for executing and canceling status changes can be performed through the screen on the display device. Complicated input operations such as input are no longer required,
To obtain a plant simulator that allows even beginners to easily change conditions and train plant operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a plant simulator according to an embodiment of the present invention, and FIG. 2 is a CRT of the plant simulator.
FIG. 3 is an explanatory diagram of a state change screen displayed on a display device, and a time chart for explaining the operation of the simulation device. DESCRIPTION OF SYMBOLS 1...CRT display device, 2...Touch screen, 3...Signal processing device, 4...Status change target selection device, 5...Status change type selection device, 6...Status change execution /Release device, 7... Simulation calculation device, 8... Display control device, 9... Alarm device, 10... Screen operation switch. Figure 1

Claims (1)

[Claims] A plant simulator comprising a simulation calculation device that simulates the physical characteristics and control device of a plant, and a display control device and a display device that display the plant state calculated by the simulation calculation device on a screen, wherein the display device includes: means for selectively displaying a plant system screen to which a state change target belongs;
Means for displaying a status change screen including items necessary for status change by selecting and operating a status change target on the displayed plant system screen; and by selecting and operating items on the status change screen. A plant simulation device comprising: means for instructing the simulation calculation device to set and execute or cancel a state change.