JP2001296792A - Simulation system and recording medium with program for realizing the same recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the training period and the learning time by making it possible to seamlessly switching between an equipment design and a dynamic characteristic simulation, and easily reflecting the simulation result in the equipment design. SOLUTION: A design support device 3 automatically prepares specifications for equipment based on the given design conditions. The design support device 3 is provided with a design condition storage device 4 and an equipment specification storage means 5. A simulator 6 is provided with a constant storage means 7, an initial value storage means 8, and a simulated operation result storage means 9. The design support device 3 is provided with a constant generating means 31 and an initial value generating means 32. The simulator 6 is provided with a design condition generating means 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to plant operation training and learning and design of plant components and control systems.
The present invention relates to a simulation system used for analysis and a recording medium that records a program for realizing the system.

[0002]

2. Description of the Related Art In order to properly operate a large-scale and complex system such as a power plant or a chemical plant, daily training and sufficient education are indispensable. For this reason, plant startup / shutdown training and accident response training using a large-scale operation training simulator have been implemented. In addition, education on plant equipment and control systems has been actively conducted for the purpose of early training of engineers and succession of technology.

A conventional simulation system used for such a purpose will be described with reference to an operation training simulator used for operation training of a power plant as an example. The operation training simulator is used for learning the operation method of the power generation plant, the operation for responding to the abnormality of the plant, and the like for the operator to learn. There are many types of driving training simulators according to the purpose. From a full replica simulator that faithfully simulates the central operation room of a power plant,
There are various types of compact simulators that can easily learn plant equipment, its dynamic characteristics, and control systems using a personal computer. In recent years, since the actual driving operation has shifted to the CRT operation, hardware switches and the like are no longer required, and it is now possible to simulate a driving operation equivalent to that of a real machine by using a compact simulator.

FIG. 12 shows an example of a basic hardware configuration of a relatively large-scale driving training simulator. In FIG. 12, the training room 80 is a room that faithfully simulates the central operation room of the power plant, and includes an operator console 81 and the like. In this room, trainees can perform almost the same operations as those in the central operation room of the actual machine, such as operating switches and push buttons, monitoring the state of the plant on a CRT, and opening and closing valves. The dynamic characteristics and control system of the plant are stored in a computer 83 installed in the computer room 82.
By software. Depending on the type of the driving training simulator, the control system may use the same control device as the actual machine. The instructor room 84 has a computer terminal 8
5 and the like, and can perform various operations necessary for training, such as executing and temporarily stopping the driving training simulator, setting an initial state, and generating a failure. Usually, the training room 80 can be overlooked from the instructor room 84 so that the behavior of the trainee can be grasped.

FIG. 13 shows the basic elements of the driving training simulator. Simulators have many areas of application and vary in form, but the basic elements are the same. In FIG. 13, a simulation model 91 is shown.
Is a mathematical model of the behavior of the plant as a device or system, and is programmed as software executed on the computer 83. The model is usually composed of simultaneous differential equations, and by solving this using a numerical integration method, it is possible to simulate the temporal change of process values such as temperature, pressure, and flow rate. It should be noted that there are many types of modeling methods and numerical integration methods, which are used depending on the simulation target.

In order to execute a simulation using the simulation model 91, constants 101 indicating the characteristics of the modeled equipment, for example, a flow coefficient, a heat transfer coefficient, a sectional area, a volume, etc., and pressure, temperature, water storage amount, etc. The initial value 102 of the numerical integration calculation is required. The constant 101 and the initial value 102 are stored in a constant storage unit 92 and an initial value storage unit 93, respectively. Usually, these are stored in a storage device (main memory, external storage device, or the like) of the computer 83.

On the other hand, a typical application field of the simulation technique is plant engineering. For example, in a design support apparatus used for designing plant equipment, FIG.
Based on the design conditions 94 given as shown in FIG. 4, the requirements specified in the design conditions 4 are satisfied by performing calculations in a predetermined procedure using the device specification determining means 96 provided in the apparatus. The device specification 95 can be automatically generated. That is, for the design support device, the design condition 4
For example, when the plant gives process values such as pressure, temperature and flow rate in the rated operation state, the equipment specification determining means 96 determines the equipment specifications 95 such as the material and capacity of the equipment with a design margin based on regulations and know-how. .

In the design of such plant equipment, it is necessary to confirm the effect of the equipment specifications as a result of the design work on the entire plant and the control system. Conventionally, simulations have been applied to the equipment design, and simulations have been performed based on the equipment specifications obtained by the design support equipment, so that the effects of the equipment specifications on the entire plant and the control system can be visually confirmed by simulation. In addition, it is performed to determine whether or not the device specification is appropriate and whether or not the determination unit 96 itself used to obtain the device specification is appropriate.

[0009]

However, in the prior art, a simulator for training and learning and a design support device for designing a device specification are provided independently, and the device which is the result of the design work is provided. Reflecting the specifications on the simulator was done manually. for that reason,
From the viewpoint of the design support apparatus, there is a problem that it takes time to determine whether the designed device specification is appropriate or not, and to re-design based on the result of the simulation. In addition, the simulator cannot easily perform training and learning based on the new specification based on the design result, which is very inefficient.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art. It is possible to seamlessly switch between device design and dynamic characteristic simulation, and the result of simulation can be easily applied to device design. And a simulation system capable of reducing the training period and the learning time.

[0011]

In order to achieve the above object, the invention of claim 1 comprises a simulator for performing a simulation operation of a plant behavior, a constant storage means for storing constants used for the simulation operation, and a simulation device. In a simulation system having initial value storage means for storing an initial value for starting an operation, and equipment specification determining means for determining an equipment specification based on a given design condition, a constant for the simulation operation based on the equipment specification And an initial value generating means for generating an initial value for the simulation operation from the design condition and the device specification (or a constant generated by the constant generating means). I do.

According to the first aspect of the present invention, the constant generating means generates a constant for a simulation operation from the equipment specification determined by the equipment specification determining means, and the initial value generating means determines the design condition given to the equipment specification determining means. By generating an initial value for a simulation operation from the specified device specifications (or the constant generated by the constant generation unit), it is possible to easily shift from device design to dynamic characteristic simulation.

According to a second aspect of the present invention, there is provided a simulator for performing a simulation operation of a plant behavior, constant storage means for storing a constant used for the simulation operation, and an initial value storage for storing an initial value for starting the simulation operation. A simulation system comprising: means; simulation calculation result storage means for storing a result of a simulation calculation performed based on the constants and the initial value; and equipment specification determination means for determining equipment specifications based on given design conditions. A constant generation means for generating the constant for the simulation operation from the equipment specification; a simulation operation result stored in the equipment specification (or a constant generated by the constant generation means) and the simulation operation result storage means; And an initial value generating means for generating an initial value for the simulation operation from the above.

According to the second aspect of the present invention, the constant generating means generates a constant for a simulation operation from the device specification determined by the device specification determining means, and the initial value generating means generates the constant for the device specification (or the constant generated by the constant generating means). By generating an initial value from the simulation operation result stored in the simulation operation storage means and the simulation operation storage means, it is possible to easily shift from device design to dynamic characteristic simulation.

According to a third aspect of the present invention, there is provided a simulator for performing a simulation operation of a plant behavior, constant storage means for storing a constant used for the simulation operation, and an initial value storage for storing an initial value for starting the simulation operation. Means, and a simulation system having equipment specification determining means for determining equipment specifications based on given design conditions, wherein a simulation is performed based on a constant stored in the constant storage means and an initial value stored in the initial value storage means. The apparatus further comprises a design condition generating means for generating a design condition for the device specification determining means.

According to the third aspect of the present invention, the design condition generating means generates design conditions for the device specification determining means from the constants stored in the constant storage means and the initial values stored in the initial value storage means. Thereby, it is possible to easily shift from the dynamic characteristic simulation to the design of the device specifications.

According to a fourth aspect of the present invention, there is provided a simulator for performing a simulation operation of a plant behavior, constant storage means for storing a constant used for the simulation operation, and initial value storage for storing an initial value for starting the simulation operation. A simulation system comprising: means; simulation calculation result storage means for storing a result of a simulation calculation performed based on the constants and the initial value; and equipment specification determination means for determining equipment specifications based on given design conditions. And a design condition generating means for generating a design condition for the device specification determining means from the simulation result stored in the simulation result.

According to a fourth aspect of the present invention, the design condition generating means retrieves a value of the simulation operation result stored in the simulation operation result storage means at an arbitrary point in time and generates design conditions for the equipment specification determining means. Thereby, it is possible to easily shift from the dynamic characteristic simulation to the design of the device specifications.

According to a fifth aspect of the present invention, a simulation model representing a method for simulating a plant behavior is provided on a recording medium,
A constant storage step of storing a constant used for the simulation operation, an initial value storage step of storing an initial value for starting the simulation operation, and an equipment specification determination step of determining equipment specifications based on given design conditions. A constant generation step of generating the simulation calculation constant from the device specification, an initial value generation step of generating the simulation calculation initial value from the design condition and the device specification, and the constant storage step. A design for generating design conditions for the device specification determining step from the stored constants and the initial values stored in the initial value storing step, or a result of a simulation operation performed based on these constants and the initial values. A computer-readable program including a condition generating step is stored.

According to the fifth aspect of the present invention, by mounting this recording medium on a computer and executing a program,
The simulation system can be easily realized.

[0021]

Embodiments of the present invention will be described below. The same parts as those in the conventional example shown in FIGS. 13 and 14 are denoted by the same reference numerals, and description thereof will be omitted. Also,
The specific software and hardware configurations for implementing the present invention can be variously modified. For example, there are various types of software such as a compiler, an interpreter, and an assembler. For exchanging information with the outside, various types of removable recording media such as a floppy (registered trademark) disk, a network connection device, and the like are conceivable. Further, a recording medium such as a CD-ROM in which software or a program for realizing the present invention is recorded is also an aspect of the present invention even when used alone. Since various aspects of realizing the present invention using a computer are conceivable,
Hereinafter, embodiments of the present invention will be described using virtual block diagrams and flowcharts for realizing individual functions included in the present invention and the embodiments.

(1) First Embodiment FIG. 1 is a block diagram showing a configuration of a simulation system according to a first embodiment of the present invention. The configurations of the design support device and the simulator according to the present embodiment are basically the same as those of conventionally known devices.

In FIG. 1, reference numeral 1 denotes an input device such as a keyboard, a mouse, and a communication line for inputting various data and commands in the present embodiment, and 2 denotes a device specification as a design result or a simulation result. Output device such as a display, a printer, a communication line, etc. Reference numeral 3 denotes a design support device. The design support device 3 calculates a design condition based on a given design condition by using a device specification determining means provided in the device in a predetermined procedure. This automatically generates device specifications that satisfy the requirements specified in. The design support apparatus 3 is provided with a design condition storage device 4 for storing given design conditions, and a device specification storage unit 5 for storing device specifications as design results. Reference numeral 6 denotes a plant simulator, which is composed of a simulation model obtained by mathematically modeling the behavior of a plant as a device or system. The simulator 6 stores a constant storage unit 7 that stores constants indicating characteristics of equipment necessary for executing the simulation model, an initial value storage unit 8 that stores an initial value of the numerical integration calculation, and a simulation result. A simulation operation result storage means 9 is provided.

In this embodiment, the design support device 3 is provided with a constant generating means 31 and an initial value generating means 32. The constant generating means 31 generates a constant for a simulation operation required for performing a simulation from the device specifications obtained by the design support device 3. The initial value generating means 32 generates an initial value for the simulation operation from the design conditions given to the design support device 3 and the device specifications obtained by the design support device 3. Here, the constant generation means 31 generates the simulation calculation constant based on the correspondence between the device specification and the constant created in advance from the calculation content in the design support device 3 and the calculation content in the simulator 6. The initial value generation means 32 is configured to determine the correspondence between design conditions and device specifications created in advance from the operation contents in the design support apparatus 3 and the operation contents in the simulator 6 and initial values,
Alternatively, an initial value for a simulation operation is generated based on the design conditions and the correspondence between the constant generated by the constant generating means 31 and the initial value.

The simulator 6 includes a simulator 6
There is provided a design condition generating means 61 for generating design conditions to be given to the design support device 3 based on the simulation operation result obtained by the above. The design condition generating means 61 generates design conditions to be given to the design support device 3 based on the correspondence between the design contents created in advance from the operation contents in the design support device 3 and the operation contents in the simulator 6 and the simulation operation results. .

FIG. 2 is a flow chart for explaining the operation of the present embodiment having the above configuration. Here, for the sake of simplicity, it is assumed that the specification of the cylindrical water storage tank as shown in FIG. explain. First, in the specification determination stage, when the water storage amount Md, the level Ld, and the specific volume vd of the fluid in the rated operation state are given to the design support device 3, the design support device 3 determines the equipment specifications provided therein. The necessary cross-sectional area A is determined in consideration of a design margin based on regulations and know-how in accordance with the operation content predetermined in the means.

Next, at the dynamic characteristic simulation stage in the simulator 6, the change rate of the water storage amount is the difference between the inflow amount Gi and the outflow amount Go. The level L is calculated from the water storage amount M, the sectional area A obtained by the design support device 3, and the specific volume v. Here, the cross-sectional area A is a constant and the others are functions of time. In particular, the water storage amount in this case is called a state variable, and is subject to numerical integration, so an initial value is required. It is assumed that the flow rate is controlled by a control system (not shown).

This series of flows will be described with reference to the flow chart shown in FIG. 2. When design conditions are given to the design support device 3 such as the water storage amount Md in the rated operation state, the level Ld, and the fluid specific volume vd. (S01), the design support apparatus 3 performs a calculation as shown in FIG. 3 (S02), and outputs a cross-sectional area A which is a device specification (S03). The constant generation means 31 generates a constant from the cross-sectional area A (S04).
Then, this is stored in the constant storage means 7 (S05). In this case, the generated constant has the same cross-sectional area A as the device specification. Next, the initial value generation means 32 generates an initial value of the water storage amount M from the design conditions obtained by the design support device 3 (S06), and stores this in the initial value storage means 8 (S07). In this example, the generated initial value is equal to the water storage amount Md.

By inputting the constant and the initial value obtained as described above to the simulator 6 (S08), if the specific volume v is constant in the simulator, for example, FIG.
It is possible to simulate the time change of the tank level L from the state of the design condition as shown in FIG.
09). This means that the method of generating the constants and the initial values is determined from the calculation contents in the specification determination and the calculation contents in the dynamic characteristic simulation, and it is easy to create the correspondence shown in FIG. 5 in advance. realizable. As a result, a dynamic characteristic simulation can be performed based on the design conditions and the device specifications obtained by the design support device 3, and the result can be obtained (S10).

Although the present embodiment has the above-described configuration and operation, it is not necessarily limited to the above description. For example, in the flowchart of FIG. 2, the process of generating a constant has been described to be performed before the process of generating an initial value, but any of the processes may be performed first. Further, in the step (S06) of FIG. 2, the initial value generating means 32 can generate the initial value by using the constants generated by the constant generating means 31 and the design conditions instead of the device specifications. .

As described above, according to the present embodiment, it is possible to determine the equipment specifications, that is, to easily perform the dynamic characteristic simulation from the design stage, to shorten the training time and the learning time, and to reduce the engineering time. There is an effect that efficiency can be improved in business.

(2) Second Embodiment FIG. 6 is a flowchart showing an example of a simulation system according to a second embodiment of the present invention. The difference between the simulation system of the present embodiment and the simulation system of the first embodiment is that
In 6), the initial value generation unit 32 uses the simulation result of the simulator 6 stored in the simulation result storage unit 9 instead of the design condition, so that the calculation result at any time and the device specification are used. The point is to generate an initial value. In FIG. 6, the other configuration is the same as that of the first embodiment shown in FIG. 2, and the description of the same portions will be omitted.

That is, in the simulation calculation result by the simulator 6, for example, the simulation result as shown in FIG. 4 is stored every moment. Although not shown in FIG. 4, the water storage amount as a state variable is also stored. Here, assuming that the level at a certain time section Tn is Ln,
It is clear from the calculation contents in the specification determination stage and the dynamic characteristic simulation stage shown in FIG. 3 that the water storage amount M at which the level becomes Ln when the cross-sectional area A is given can be obtained. Therefore, the initial value generation means 32 in the present embodiment stores the Ln at an arbitrary time from the simulation calculation result storage means 9 and the device specification or constant generation means 31.
It is possible to generate an initial value by using the constant generated by. FIG. 7 shows the correspondence in this case. This makes it possible to generate an initial value at an arbitrary point in the simulation in accordance with a newly designed device.

In this embodiment, as in the first embodiment, simulation of dynamic characteristics can be easily performed from the design stage for determining the equipment specifications, and the training time and learning time can be reduced. In addition, there is an effect that efficiency can be improved in engineering work.

(3) Third Embodiment FIG. 8 is a flowchart showing an example of a simulation system according to a third embodiment of the present invention. This embodiment also uses the example of the tank used in the first and second embodiments.

That is, in this embodiment, first, constants and initial values are input to the simulator (S11), a simulation is performed (S12), and the result is stored in the simulation result storage means 9. By referring to the result of the simulation, it is possible to determine whether a given constant or initial value is appropriate. In order to reflect the results of the simulation performed as described above in the device design, the constants and initial values given to the simulator are input to the design condition generating means 61 (S14). Then, the design condition generating means 6 gives the design support device 3 to the design support device 3 based on the correspondence between the design contents created in advance from the operation contents in the design support device 3 and the operation contents in the simulator 6 and the simulation operation results. A design condition is generated (S15). The generated design conditions are input to the design support device 6 (S1).
6) In the design support apparatus 6, a calculation of the device specification is performed according to the predetermined calculation content (S17), and the calculation result is output as a device specification reflecting the simulation (S18).

As described above, in this embodiment, the design condition generating means 61 provided in the simulator 6 stores the constants stored in the constant storage means 7 and the initial values stored in the initial value storage means 8. Is used to generate design conditions to be input to the design support device 3. This is the reverse process of the first embodiment. That is, it is possible to obtain a correspondence relationship as shown in FIG. 9 from the calculation contents in the device specification determination stage shown in FIG. 3 and the calculation contents in the dynamic characteristic simulation, and to generate design conditions based on this. As a result, according to the present embodiment, it is possible to easily design the device specifications using the dynamic characteristic simulation results, and there is an effect that the device specifications can be determined in terms of the dynamic characteristics.

(4) Fourth Embodiment FIG. 10 is a flowchart showing an example of a simulation system according to a fourth embodiment of the present invention. This embodiment is different from the third embodiment in that a step (S14)
In the above, the design condition generating means 10 takes out the value of the simulation result stored in the simulation operation result storage means 9 at an arbitrary point in time and generates the design condition.
Also in the present embodiment, a correspondence relationship as shown in FIG. 11 is obtained from the calculation contents in the equipment specification determination stage shown in FIG. Can be.

Also in the present embodiment, it is possible to easily design the equipment specifications by using the dynamic characteristic simulation results, and there is an effect that the equipment specifications can be determined in terms of the dynamic characteristics.

[0040]

As described above, according to the present invention, it is possible to seamlessly and easily switch between the design for determining the device specifications and the dynamic characteristic simulation, so that the training effect and the learning effect are enhanced, and the training time and the learning time are improved. In addition, there is an effect that the engineering work utilizing simulation technology can be made more efficient. In addition, by recording a program for processing each process shown in each of the above-described embodiments on a recording medium, the present invention can be easily realized in design support devices and simulators in various places.

[Brief description of the drawings]

FIG. 1 is a block diagram of a simulation system according to the present invention.

FIG. 2 is a flowchart according to the first embodiment of the present invention.

FIG. 3 is a diagram showing an example of a tank for explaining an embodiment of the present invention.

FIG. 4 is a graph showing an example of a simulation result.

FIG. 5 is a data relation diagram according to the first embodiment of the present invention.

FIG. 6 is a flowchart according to the second embodiment of the present invention.

FIG. 7 is a data relation diagram according to the second embodiment of the present invention.

FIG. 8 is a flowchart according to a third embodiment of the present invention.

FIG. 9 is a data relation diagram according to the third embodiment of the present invention.

FIG. 10 is a flowchart according to a fourth embodiment of the present invention.

FIG. 11 is a data relation diagram according to the fourth embodiment of the present invention.

FIG. 12 is a diagram showing an example of a configuration of a driving training simulator.

FIG. 13 is a block diagram showing the concept of a conventional simulation system.

FIG. 14 is a block diagram showing the concept of conventional plant equipment design.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Input means 2 ... Output means 3 ... Design support apparatus 4 ... Design condition storage apparatus 5 ... Equipment specification storage means 6 ... Simulator 7 ... Constant storage means 8 ... Initial value storage means 9 ... Simulation calculation result storage means 31 ... Constant generation Means 32: Initial value generation means 61: Design condition generation means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) G06F 17/60 106 G06F 17/60 106 19/00 110 19/00 110 (72) Inventor Takahisa Kato Tokyo 1 Toshiba-cho, Fuchu-shi F-term in the Toshiba Fuchu factory (reference) 5B046 AA02 JA04 5B049 AA01 AA06 BB07 BB22 DD01 EE03 EE43 EE56 FF09 GG04 GG07 9A001 BB03 HH32 JJ71

Claims (5)

[Claims] 1. A simulator for performing a simulation operation of a plant behavior, constant storage means for storing a constant used for the simulation operation, and initial value storage means for storing an initial value for starting the simulation operation. A simulation system having device specification determining means for determining device specifications based on the design conditions, wherein constant generation means for generating the simulation calculation constant from the device specifications; and the design conditions and the device specifications or the constant generation. A simulation system comprising: an initial value generation unit configured to generate an initial value for the simulation operation from a constant generated by the unit. 2. A simulator for performing a simulation operation of a plant behavior, constant storage means for storing a constant used for the simulation operation, initial value storage means for storing an initial value for starting the simulation operation, and the constant A simulation operation result storage unit for storing a result of the simulation operation performed based on the initial value, and a device specification determining unit for determining a device specification based on a given design condition; A constant generating means for generating the constant for the simulation operation from the constants generated by the device specification or the constant generation means and the simulation result stored in the simulation result storage means. A simulation system comprising an initial value generating means for generating an initial value. 3. A simulator for performing a simulation operation of plant behavior, constant storage means for storing constants used for the simulation operation, and initial value storage means for storing an initial value for starting the simulation operation. A simulation system having equipment specification determining means for determining equipment specifications based on the design conditions, wherein said equipment specification determining means is determined from constants stored in said constant storage means and initial values stored in said initial value storage means. A simulation system comprising a design condition generating means for generating a design condition for a computer. 4. A simulator for performing a simulation operation of plant behavior, constant storage means for storing a constant used for the simulation operation, initial value storage means for storing an initial value for starting the simulation operation, and the constant Simulation result storage means for storing the result of the simulation operation performed based on the initial value, simulation operation result storage means for storing the result of the simulation operation, and equipment specifications based on the given design conditions. A simulation system having device specification determining means for determining the simulation condition, comprising: a design condition generating means for generating a design condition for the device specification determining means from a simulation result stored in the simulation result. Simulation system. 5. A simulation model representing a simulation operation method for plant behavior, a constant storage step for storing constants used for the simulation operation, and an initial value storage step for storing an initial value for starting the simulation operation. A device specification determining step of determining a device specification based on the set design conditions, a constant generating step of generating a constant for the simulation operation from the device specification, and a constant generation process for the simulation operation from the design condition and the device specification. An initial value generating step of generating an initial value of the constant, a constant stored in the constant storing step and an initial value stored in the initial value storing step, or a simulation performed based on these constants and the initial value. From the result, including a design condition generating step of generating a design condition to the device specification determining step, stored a computer-readable program A recording medium characterized by the above-mentioned.