JPS6280689A - Small-sized 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 [Field of Application of the Invention] The present invention relates to a plant simulator having an automatic CR/T screen switching function, and particularly to a small simulator device suitable for driving learning.

[Background of the invention]

A description of the prior art for all nuclear power plant operation training simulators is provided.

BACKGROUND ART Operation training simulators are used to train operators in starting and stopping operations of nuclear power plants, and in response operations during plant transients and accidents.

Figure 1 shows the configuration of the driving training simulator.

Driving training simulator is the start of the simulator.

A simulation control unit 1 controls the simulator such as stopping and setting initial conditions, a plant simulation unit 2 simulates plant characteristics using a computer, and simulates the central control panel of an actual plant, controlling switches, indicator lights, alarms, controllers, and instructions. It consists of a control panel 3 equipped with a device, a recorder, a CRT, etc.

The plant simulation unit 2 simulates the behavior of the nuclear power plant in response to control signals from the simulator control unit 1, and calculates the response of the plant in response to operation signals from the control panel.

The response of the plant parameters calculated by the simulation section 2 is outputted to an instruction recorder, indicator light, CRT, etc. on the control panel. In this way, operators can be trained to operate the plant as if they were at the plant's central control panel.

However, in contrast to such full-scope simulators with actual-scale control panels, recently, small-sized simulators with reduced operation panel size are being considered, with the main focus being on reducing equipment costs and learning how to drive for operation training. It is being done. Due to the size constraints of the compact simulator, the compact simulator control panel does not have dedicated operation switches for each device, but uses a small number of hard switches and touch screen functions on the CR and T screens to operate a wide variety of devices. - Monitoring of various parameters using a card indicator, or using the CR and T screens as the main monitoring methods, and monitoring multiple parameters by switching screens is used.

In a full-scope simulator that faithfully simulates the actual plant plan, CRT
Important plant main engine trip occurrence signals such as generator trip, turbine trip, and reactor scram are taken in as trigger signals for automatic screen switching. In this case, process parameters can be monitored using indicators, recorders,
This is done using a CRT, etc., and each device is operated using operation switches. On the other hand, the small nomulator can be operated as described above.
Although monitoring is versatile, for simulation cases where multiple operations overlap at the same time, transient changes in the plant, emergency judgments and operations are required such as in the event of an accident, it is necessary to select the screen to be monitored and the target to be operated. There is a problem in that a lot of effort is required to operate the simulator itself, such as switching the simulator, making it impossible to acquire driving techniques and operating techniques, which is the original purpose.

[Purpose of the invention]

The purpose of the present invention is to eliminate constraints on operation and monitoring performance due to the reduction of control panels in simulations for learning operating techniques and operating techniques for control panels installed in the central control rooms of nuclear power plants and other power plants. In addition, our aim is to provide all simulation methods using small-sized simulators that can be expected to be more effective than conventional full-scope simulators, especially in terms of learning plant operation methods.

[Summary of the invention]

The present invention generates a trigger signal when an important main engine trip occurrence signal and an important process parameter of a nuclear power plant or other power plants reach a specific set value.
A special feature is that it has a function to automatically switch screens.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail.

FIG. 1 shows the configuration of this embodiment. The simulator operation panel 1 is a control panel that is equivalent to or reduced in size to that of an actual plant, and performs necessary operations and monitoring according to the operating status of the plant. The computer 2 also includes an input/output processing unit 3 that takes in operation information on the operation panel or displays simulation results on the operation panel, a plant model unit 4 that simulates the states of plant equipment and parameters,
and various information necessary for conducting simulations,
That is, it is composed of a simulator control section 5 that manages and controls initial conditions, simulation speed, presence or absence of malfunctions, and the like.

The above configuration is almost the same as that of a conventional simulator device, but in the embodiment of the present invention, the simulator control section 5
A simulator time management unit 7 is provided for automatically setting the simulation speed not only by an external person using the keyboard 6 but also as an internal process of the simulator. The simulator time management section 7 basically includes a determination data section 8 that holds information for automatic simulation speed setting, and a determination command section 9 that compares reference information with the simulation state.

The data held in the judgment data section 8 is given in advance by the keyboard 6 or auxiliary devices such as magnetic tape, and is used to determine system equipment operation items, normal operation timing (time from occurrence of malfunction), etc. according to the state of plant parameters. , relationship with related process parameter values)
I'm saving up.

On the other hand, the determination command unit 9 receives a malfunction setting signal 10 indicating the currently set malfunction items from the simulator control unit, the state of the plant parameters,
Simulation signal 1 indicating whether or not to perform system equipment operation
1 and the input/output processing unit 3 receives a switching command 12 for the CRT screen or operation switch function required for regular corresponding operations.
Output to.

Figure 2 shows a schematic diagram of the transition of the reactor water level as all feedwater pumps trip. The following describes changes in the reactor water level when the feed water pump trips, and plant events associated with changes in the reactor water level.

If all water pumps trip, the reactor water level will be 5.
, 6, the water level gradually decreases, and when it reaches , the reactor enters a scram state. When the water level further decreases and reaches L2, RCIC is installed to protect the reactor.

HFO2 system starts automatically. While the RCIC and HFO8 are repeatedly activated, when the reactor water level recovers to an arbitrary point, the RCIC and HFO2 systems are stopped and water system restoration operations begin. In response to the above-mentioned events,
On the CRT screen of the actual plant and full-scope simulator, the water supply system screen is displayed when the water pump trips, and
During reactor scram, only the reactor and turbine summary screen was displayed. However, according to the present invention, the CRT screen is automatically updated when the reactor water level reaches a specific set value (L!, L-). When the water level recovers and reaches the water level, the screen is automatically updated and the water supply system screen is displayed again.The same applies to other events.

〔Effect of the invention〕

According to the present invention, when learning operating techniques and operating techniques using an operation panel that is reduced compared to an actual plant operation panel, such as a small simulator device, the visibility of the operation panel due to the reduction of the operation panel is improved. When using one simulator as the learning main body, the learning effect can be expected to be improved.

[Brief explanation of drawings]

Fig. 1 is a functional configuration diagram of a simulator that is an embodiment of the present invention, Fig. 2 is an explanatory diagram showing a simulation when the present invention is used, and Fig. 3 is a system configuration diagram of a conventional full-scope simulator. . 2... Computer, 3... Input/output processing section, 4... Plant model section, 5... Simulator control section, 6...
Keyboard, 8... Judgment data section, 9... Judgment command section.

Claims (1)

[Claims] 1. In a small simulator used to learn operating techniques and operation techniques for the control panel installed in the central control room that centrally controls and operates various system equipment of large-scale, large-capacity nuclear power plants and other power plants, a test is conducted in advance before the simulation starts. Automatically selects the system status display screen for monitoring the operation target system or the touch screen screen for operating equipment within the system and displays it on the CRT screen, depending on the set Marufanction item or simulation status. A small simulator device characterized by: