JPS60118876A - Plant sumilator - 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 conducting plant operation training, behavior analysis, etc.

[Technical background of the invention and its problems] Plant simulators generally have a simulated control panel similar to the actual machine,
Equipped with an electronic computer, instructor console, etc., the computer simulates the dynamic characteristics of the plant and the logic characteristics of the actual plant and control panel, inputs and outputs from the simulated control panel, and allows instructors to train efficiently. - It is configured to process functions and input/output them to the instructor console.

In such plant simulators, the dynamic characteristics of the plant are obtained by calculating the dynamic characteristics model in the arithmetic control unit in the electronic computer, and the simulated operating conditions are displayed on various recording needles and meters on the simulated control panel. It is displayed and output as a process amount commensurate with the amount.

At this time, in the actual machine, the recording set and meter pointer exhibit fluctuations due to slight noise being added to various process quantities. Therefore, in order to create the same sense of realism in the Buran-simulation device as in the actual device, we considered installing a noise generator and adding the noise generated from the noise generator to the necessary simulated process signal and outputting it to the simulated control panel. It will be done. However, in actual plants, there are some signals whose noise amplitude changes depending on the process signal level. For example, when the pump is stopped, the flow rate signal is 0 and no noise is generated. When the pump is started and the rotational speed is increased, the meteor value increases and the noise IIJ also increases. If noise simulation is performed on such a process signal by simply adding noise generated from a noise generator to the simulated process signal as described above, the simulated process signal will be different from the actual plan 1-, and on the contrary, A problem arises that impairs the sense of realism.

[1] Purpose of the present invention In view of the above points, an object of the present invention is to provide a plant simulator that is more similar to the actual plant by performing noise simulation suitable for the actual plant.

[Summary of the invention] Therefore, in the present invention, the ratio between the maximum value of the process amount from the dynamic characteristic model calculated by the simulation calculation device is determined, and the noise amplitude is adjusted according to this ratio. The feature is that it is added to the process signal.

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

FIG. 1 shows a block configuration diagram of a plant simulation device according to an embodiment of the present invention, where ] is a simulation control panel, 2 is an electronic computer, and 3 is a noise (quadruple addition device).

The simulated control panel 1 is of the same type and has the same functions as the control panel of the actual plant, and the operation trainee understands the plant status using various lamps, indicators, etc. on the simulated control panel 1, and Plant operation is performed using various operation switches.

The electronic computer 2 includes a human control device 4 that takes in operation signals from the simulated control panel 1, a storage device 5 that stores dynamic characteristic models, etc., and a human control device 4 that takes in operation signals from the input control device 4. The arithmetic and control device 6 calculates a dynamic characteristic model, and the arithmetic and control device determines whether or not to add noise to the process signals calculated by the arithmetic and control devices, and the process signals to which no noise is added are directly recorded on the simulation control panel 1. 81, Process of outputting meters and adding noise (No. 8 is the process of adding noise (q addition'J device:
It consists of

The noise adding device 3 includes a noise generator 8 and a vibration generator that adjusts the amplitude 1J of the noise signal v output from the noise generator 8 in response to the amplitude +[+ of the process signal pt from the output control device 7. +i converter 9, shake +1J adjusted rice 4j
Adder 1 that adds No. j WL' to process signal Pt5
Consists of 0. The +1J converter 9 outputs a gain signal corresponding to the process signal P (1+).
It consists of a regulator 11 and a multiplier 12 for multiplying the noise signal W from the noise generator 8 by the gain signal G and converting it into a noise signal '.

With the above configuration, the output processing of the simulated process signal is performed as shown in the flowchart of FIG.

That is, the electronic computer 2 receives operation signals from the simulated control panel 1 via the input control device 4, and the calculation control device 6 generates a dynamic characteristic model retrieved from the memory device 5 based on the operation signals. 4. Calculate the pseudo process signal l) L from this calculation (a). Next, the calculated A
If the simulated process signal PL generated is a signal that requires noise (to determine whether it is a signal that requires q addition or not) and does not require noise addition, it is output as is from the output control device 7 to the simulated control panel 1 (c). .

On the other hand, the simulated process signal P to which it is necessary to add noise
L is input to the amplitude converter 9 and adder 10 of the noise adding device 3 for noise addition. Shake 11] Shake r of converter 9
The IJ adjuster 11 sets a gain according to the signal level of the input simulated process signal pt and outputs it to the multiplier 12.

In this embodiment, the gain Gj is calculated as follows because the noise signal level and the simulated process signal pt level are proportional, and is calculated according to the relationship shown in FIG. 3(A) (d).

At this time, the noise generator 8 generates a noise signal with a constant amplitude 11ja as shown in FIG.
:'i Enter in 12 (e). This allows multiplier 1
2 multiplies the noise signal by the gain (we' = Gl;
・1lllL) Then, set the variable vibration 1 as shown in Fig. 3 (C).
tl noise signal w1.tl. ' Calculate (to). The adder 10 calculates the calculated value from the electronic calculator 2 (]]) in FIG.
Add the variable noise signal WL' from the +lJ converter 9 to the simulated process signal pL as shown in (1) L' 2P
By (1-), we get the result J
A simulated process signal PL' with added noise as shown in FIG. 3(E) is output to the simulated control panel 1 (c).

As a result, a simulated process signal containing a variable noise component is displayed and output on the control panel 1 and 2, so that the indicators such as the instruction n1 exhibit lag between the actual machines. , the same sense of realism as in the actual plan 1- can be obtained.

In the above embodiment, the noise adding device 3 is configured as hardware as shown in FIG. 3 can also be omitted.

[Effects of the Invention] As described above, according to the present invention, since the level of the simulated process signal and the noise component added to the simulated process signal are made variable, it is possible to simulate noise equivalent to that of an actual plant. It becomes possible to obtain a simulation device that is closer to the actual device and has one bran.

[Brief explanation of the drawing]

FIG. 1 is a plan according to an embodiment of the present invention (-plotter groove diagram of a simulation device, FIG. 2 is a flowchart 1 for explaining the operation of FIG. 1, and FIG. It is a signal waveform diagram for explaining the operation. 1... 4A pseudo control board, 2... Electronic computer, 3...
Noise 4: J) JI+ device, 4... input control device, 5
...Storage device, 6. Arithmetic control device, 7.. Output control device, 8.. Noise generator, 9.. Amplitude converter,
10... Adder, 11... Width adjuster, 12...
Multiplier. Figure 2 Figure 3 f

Claims (1)

[Claims] A simulated control panel that simulates an actual plant, and an electronic computer that simulates and calculates the operating characteristics of the plant, and the electronic computer calculates the plant dynamic characteristics based on the operation signals from the simulated control panel, and the results are obtained. A plant simulator for displaying and outputting a simulated process signal on the simulated control panel, comprising: a determining means for determining whether to add noise to the simulated process signal to be displayed and output on the simulated control panel; a noise generating means; a swing rlJ converting means for varying the swing j1j of the noise signal obtained from the generating means according to the swing rlj of the simulated professional seven signal; and a variable noise signal obtained from the swing II converting means being added to the simulated process signal. According to the judgment result of the judgment means, the simulated process signal to which no noise is added is left as is, and the simulated process signal to which noise should be added is added with a variable noise signal by the addition means, and then the Plant simulator 6 characterized by displaying output on a simulating control panel