JPS62169203A - System for evaluating operation procedure of plant - Google Patents

Abstract

PURPOSE:To evaluate quickly the validity of operation procedures by operating a simulator at a speed higher than that in real time and comparing plural plant operation states with one another. CONSTITUTION:A plant operation procedure evaluating system 1 evaluates operation procedures stored in a plant operation guide system of a nuclear power plant and consists of a simulator 3, an operation guide system 5 for training, and a comparing part 7 which are connected to one another electrically. The simulator 3 simulates the operation of the plant at a speed higher than that in real time and is provided with two kinds of information file where past plant operation state information or the like is stored. The comparing part 7 compares plural simulated plant operation states with one another to evaluate quickly the validity of operation procedures stored in the plant operation guide system of the actual plant.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a plant operation procedure evaluation system that evaluates whether or not operation procedures stored in a plant operation guide system that supports plant operation are effective. Regarding.

[Technical background of the invention and its problems]

In recent years, various plants such as thermal power plants and nuclear power plants have become extremely complex and integrated into BUs, so plant operation guide systems have been installed to reduce the burden on plant operators and ensure proper plant operation. It is configured so that it can be done.

By the way, the effectiveness of the operating procedures stored in this plant operating guide system needs to be evaluated before or after being applied to an actual plant. For example, when evaluating a newly developed operating procedure, the new operating procedure is stored in an operating guide system for training plant operators, and an operation request signal is output from this operating guide system for training. This is done by operating a simulator that simulates plant operating conditions and examining this simulated plant operating condition.

However, since simulators are primarily used to train plant operators and are designed to operate in real time, it takes a great deal of time to objectively and quantitatively evaluate the effectiveness of new operating procedures. There is a drawback.

[Purpose of the invention]

This invention was made in consideration of the above facts,
It is an object of the present invention to provide a plant operating procedure evaluation system that can quickly evaluate the effectiveness of operating procedures stored in a plant operating guide system of an actual plant and that can contribute to the early development of appropriate operating procedures. purpose.

[IR requirements for invention]

In order to achieve the above object, the plant operation procedure evaluation system according to the present invention includes a simulator that simulates plant operation at a high speed higher than real time using operation request signals, and a system that can evaluate multiple operation procedures for the same event. a training operation guide system which is retractably provided and outputs the operation request signal to the simulator based on each of these operating procedures, and a plurality of plant operating states simulated by the plurality of operating procedures are mutually compared. It also has a comparing section.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a plant operation procedure evaluation system according to the present invention.

This plant operation procedure evaluation system 1 evaluates the suitability of operation procedures stored in a plant operation guide system of a nuclear power plant, and includes a simulator 3 and a training operation guide system 5 that are electrically connected to each other.
and a comparing section 7.

The simulator 3 is equipped with a high-performance computer and simulates the operation of a nuclear power plant at higher speed than real time.

In addition, this simulator 3 has two types of information files T.
, T2 are stored. The information file T1 includes past plant operating status information in an actual nuclear power plant or simulator (for example, reactor pressure at the time of plant abnormality, reactor water level, valve opening/closing status of main steam isolation valve, etc.),
Information regarding the operations performed by the operator at that time is combined along the time flow.

The information file T2 is information in which past plant operating conditions (causes of abnormality or causes of abnormality for training) in an actual nuclear power plant are arranged along the flow of time. The simulator 3 uses these information files T1 or T2
It operates based on a signal from the training operation guide system 5 and an operation request signal 11, which will be described later, from the training operation guide system 5. °Furthermore, the plant operating state when the simulator 3 is in operation is transmitted to the training operation guide system 5 as a plant operating state signal 9.
Output to.

Based on the plant operating state signal, the training operation guide system 5 selects and determines an operating procedure according to the plant operating state from among the stored operating procedures, and presents it to the trainee together with the plant operating state. This operating procedure is a time-based arrangement of plant operations. Further, the training operation guide system 5 is configured to be able to store a plurality of operation procedures to be evaluated for the same event, for example, an abnormal event such as a secondary pipe rupture accident. These multiple operating procedures are
These are the operating procedures for the newly developed F7NA, and each operating procedure is stored individually in the form of inputting it into a computer.

Further, the training operation guide system 5 outputs to the simulator 3 an operation request signal 11 based on the operation procedure or an operation request signal 11 based on the trainee's operation.

When the information file T2 is stored in the simulator 3 and a plurality of new operating procedures are stored in the training operation guide system 5, the comparison unit 7 compares a plurality of plant operations simulated by these plurality of operating procedures. Compare states with each other. This comparison is made, for example, by comparing the reactor water level settling time, leakage radiation dose, etc., as shown in FIG.

In addition, when the information file T1 is stored in the simulator 3, the comparison unit 7 compares the operation procedure performed in the past by the operator simulated in the simulator 3 with the same event stored in the training operation guide system 5. Compare with the corresponding operating procedure. As shown in FIG. 3, this comparison is performed by comparing, for example, an operation P1 actually performed by an operator in the past and an operation P corresponding to operation P1 among the operation procedures stored in the training operation guide system 5. Compare based on. Roughly,
The information file T2 is stored in the simulator, and the operating procedures to be evaluated are stored. When a trainer operates the simulator 3 via the training operation guide system 5, the operating procedures and training performed by the trainer are stored. The operating procedures stored in the operating guide system 5 are compared based on time as in FIG.

Next, the effect will be explained.

In explaining this effect, we evaluate the effectiveness of newly developed operating procedures, the operating procedures of operations performed in the past, and the validity of training results and operating procedures for trainers. Each of these will be discussed separately.

(A) When evaluating the effectiveness of a newly developed operating procedure In this case, the simulator 3 simulates plant operation at a higher speed than real time based on the stored information files. In addition, the training operation guide system 5 includes a plurality of operation procedures M, which were newly developed for the Shuichi event! Vj2.・
... are stored individually.

When the simulator 3 operates, the simulated plant operating state is outputted to the training operation guide system 5 as a plant operating state signal 9. In response to this plant operation status signal 9, an operation request signal 11 based on the operation procedure M1 is first generated.
is output from the training operation guide system 5 to the simulator 3, and the simulator 3 continues the simulated driving at a higher speed than real time. Next, regarding the operating procedure M2, the operating procedure M1
Similarly, the simulator 3 is operated in a simulated manner.

Each operation procedure M, M2. . . . After the simulated operation of the simulator 3 is completed, each operation procedure M1. M2
．． The plant operating conditions executed each time are compared as shown in Fig. 2. In this FIG. 2, the operating procedure M1. Comparison is made for M2. In the case of operating procedure M1, as shown by the solid line, the reactor water level J5 and pressure settling time are shorter than in the case of operating procedure M2, shown by the dashed line. However, in the case of operating procedure M2, other factors, especially leaked radioactivity, are significantly reduced, and it is ultimately evaluated that this operating procedure M2 is superior to operating procedure M1.

In this way, the simulator 3 performs simulated operation at a higher speed than real time, so that the effectiveness of a newly developed operating procedure can be quickly evaluated.

Furthermore, if the above-mentioned evaluation is performed on all of the information files T2 related to abnormal events stored in the simulator 3, which of the operating procedures M, M2゜... is the most versatile operating procedure. can be evaluated.

(B) When evaluating the operation procedure in J3 based on operations executed in the past In this case, the simulator 3 simulates the past plant behavior that was actually performed based on the stored information file T1 at a high speed higher than real time. and reproduce. Further, the training operation guide system 5 stores the operation procedures stored in the plant operation guide system of the actual plant as the operation procedures to be evaluated.

Now, during simulated operation by the simulator, the plant operation status signal 9 is output from the simulator 3 to the training operation guide system 5, so the comparison unit 7 compares each operation actually performed by the operator and the training operation. Compare the operation (operation that should have been performed by the operator) in the operation procedure to be evaluated stored in the guide system 5 (
(See Figure 3).

For example, the operator's operation P1 is executed according to the operation procedure P, but the operation P is forgotten and the operation P
2 is shown to have been executed later than operation P2-2.

As a result, it is possible to evaluate the effectiveness of the operating procedures stored in the plant operation guide system of the actual plant (whether the operations are easy or easy to understand, etc.) and the operations performed by the operators. In this case, since the simulator 3 operates at a higher speed than real time, it is possible to quickly perform the above-mentioned evaluation of the past behavior of the plant, which would have taken a long time.

(C) When evaluating the validity of training results of trainers and operating procedures In this case, the simulator 3 uses the stored information file T
2 to simulate plant operation in real time. Further, the training operation guide system 5 stores newly developed or known operation procedures. During operation of the simulator 3, the plant operating state is outputted to the training operation guide system 5 as a plant operating state signal. In this training operation guide system 5, the plant operation status signal 9
Present the operating procedures corresponding to the training personnel. The trainee operates the training operation guide system 5 based on the presented operation procedure.
The operation request signal 11 is outputted via the simulator 3.
simulate driving.

During or after the operation of the simulator 3 by such a trainee, the comparison unit 7 compares the operation procedure actually performed by the trainee and the operation stored in the training operation guide system 5, as in the case (B). The procedures are compared based on time as shown in FIG. Thereby, the training results of the trainees can be evaluated, and the validity of the operating procedures stored in the training operation guide system 5 can be evaluated.

〔Effect of the invention〕

As described above, the plant operation procedure evaluation system according to the present invention includes a simulator that simulates plant operation faster than real time using operation request signals, and a simulator that stores multiple operation procedures to be evaluated for the same event. a training operation guide system that outputs the operation request signal to the simulator based on each of these operation procedures; and a comparison section that mutually compares a plurality of plant operating states simulated by the plurality of operation procedures. By running the simulator in simulated time or more, it is possible to quickly evaluate the effectiveness of the operating procedures stored in the plant operation guide system of the actual plant, and to identify appropriate operating procedures at an early stage. This has the effect that it can be developed to

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the plant operating procedure evaluation system according to the present invention, FIG. 2 is a graph comparing plant operating states simulated by a simulator based on a plurality of operating procedures, and FIG. The figure is a time rate diagram comparing the operating procedure actually performed and the operating procedure stored in the training operating guide system. 1... Plant operation procedure evaluation system, 3... Simulator, 5... Training operation guide system, 7.
...Comparison section, 9...Plant operation status signal, 11...
- Operation request signal. Applicant's agent Hisashi Hatano (Meiyourennei)

Claims (1)

[Scope of Claims] 1. A simulator that simulates plant operation at a high speed higher than real time based on operation request signals, and a simulator capable of storing a plurality of operation procedures to be evaluated for the same event, and a simulator that simulates plant operation at higher speed than real time using operation request signals, and a simulator capable of storing a plurality of operation procedures to be evaluated for the same event, and based on each of these operation procedures. a training operation guide system that outputs the operation request signal to the simulator; and a comparison section that mutually compares a plurality of plant operating states simulated by the plurality of operation procedures. Operating procedure evaluation system. 2. The simulator stores information that combines past plant operating conditions in the actual plant and operator operations performed in this plant, and the simulator operates based on this information, and the comparison section 2. The plant operation procedure evaluation system according to claim 1, wherein the operator's operation procedure simulated by the simulator is compared with the operation procedure stored in the training operation guide system. 3. The simulator stores information regarding past plant operating conditions in the actual plant, and the simulator is activated by this information and an operation request signal from the training operation guide system executed by the trainee;
3. The plant operation procedure evaluation system according to claim 1, wherein the comparison unit compares the operation procedure executed by the trainee with the operation procedure stored in the training operation guide system.