JPH0221555B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nuclear power plant control device that controls the operation of a nuclear power plant using an electronic computer system display device.

Nuclear power plant operations are carried out via a central control panel installed in the power plant's central control room, and this central control panel is equipped with over 100 meters,
A recorder and operation switches are installed, and necessary driving operations are performed through these.

However, this central control panel has become increasingly larger and more complex due to the increase in the scale of power plants and the addition of devices for safer monitoring and operation of power plants.

This has made it extremely difficult for operators to operate power plants. In other words, as the central control panel becomes larger and the number of meters and recorders increases, it becomes difficult for operators to grasp the plant status, and as the amount of monitoring increases, the number of operators increases. However, communication between operators becomes complicated, and there are limits to the efficiency of power plant operation and the ability to respond appropriately based on the overall situation of the power plant in an emergency, which poses an obstacle to safe operation of the power plant. .

For this reason, the process data displayed on the various instruments in the central control panel is displayed on a display device such as a color CRT, drawings that pictorially express the overall process amount, and systems that display the open/close status of the valves in each system and the process amount. It is possible to make it easier for operators to grasp the status of the power plant by displaying diagrams, etc., and to reduce the space required by reducing the number of instruments on the central control panel. However, when operating a nuclear power plant using a color CRT,
A computer system commensurate with this had not yet been realized. In other words, a computer system that can display and output process data as quickly as various instruments (on the order of tens of milliseconds) has not yet been realized.

This invention was made in order to eliminate these drawbacks, and it is the most suitable computer system configuration to realize a centralized central control panel using color CRTs for nuclear power plants. The present invention provides a nuclear power plant operation control device having a configuration capable of outputting (displaying) at high speed.

The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The process input/output device 22 includes process data of the nuclear power plant 1 and
It inputs instruction data for the plant control console 21, and this process input/output device 22
is a plant monitoring and control computer system (hereinafter referred to as
(hereinafter referred to as SVC) 23 and display computer system (hereinafter referred to as
(referred to as DSP) 24, and is connected to SVC23,
The DSP 24 is capable of reading process data of the nuclear power plant 1 via the process input/output device 22. Also, the process input/output device 22
An alarm display device 30 is connected to. SVC
23 and the reactor monitoring and management computer system (hereinafter referred to as
(referred to as RMM) 25 includes a CRT display control device 26;
A printer 27 and a CRT input/output device 28 are connected. Further, a color CRT display 29 installed on the central control panel 3 is connected to the DSP 24 via a CRT display control device 24A. Also SVC
The systems 23, DSP 24, and RMM 25 are connected to each other by a system linkage 200 that allows direct memory access, so that information can be transmitted. Further, the computer systems SVC 23, DSP 24, and RMM 25 are coupled with a shared memory 32 that can be accessed in the same manner as the main storage of the computer systems 23, 24, and 25, and has an exclusive control circuit between each computer system. Common data is stored and used when desired. This allows process input to be processed at high speed and displayed at high speed.

The operation of the nuclear power plant operation control device configured as described above will be explained below. The process quantities of the nuclear power plant 1, such as the reactor main steam flow rate of 5400 T/H, the reactor water level of 1200 MM, and the feed water pump operation, are read into the DSP 24 at high speed via the process input/output device 22. The DSP 24 displays process quantities on the color CRT display 29 on the central control panel 3 in the form of digital quantities such as flow rates and pressures between graphic devices that simulate meter recorders, and on/off status of valve pumps. The state of the place is displayed quickly and graphically in response to the movement of the actual process, like a meter or recorder. An example of this display is shown in Figure 2, which shows the reactor steam flow rate (TOTAL
The system diagram display screen shows STEAM FLOW) 5400T/H, reactor water level (WATER LEVEL) 1200MM, etc.

On the other hand, the SVC 23 monitors whether the process amount of the nuclear power plant 1 read through the process input/output device 22 exceeds a limit value and is abnormal, and if it is abnormal, sends the information to the process 27 and the alarm display device 30. is output. In addition, the details of the abnormality are transmitted through the system linkage 200 and the shared memory 32.
It is transmitted to the DSP 24, and if the input point is displayed, the display color is changed to red, blinking, or the shape is changed to indicate that there is an abnormality. For example, when the reactor water level (WATER LEVEL) in Figure 2 exceeds the limit water level, the color is set to red, for example, and it blinks.
The occurrence of an abnormality can be indicated to the operator.

RMM25 calculates the burnup of nuclear fuel in the reactor, reactor calorific value, etc. based on the process quantities related to the reactor inputted by SVC23, uses the results to monitor and manage the state inside the reactor, and reports the results. It is output to the CRT input/output device 28 via the printer 27 and the CRT display control device 26. Optional request functions such as a list of input point data by the operator,
The request is accepted by the CRT input/output device 28,
It is processed by the SVC 23 or RMM 25, and the result is output to the printer 27 or CRT input/output device 28. In addition, so-called automation such as control of turbine start-up and stoppage power generation is performed in response to operations on the plant control console 21, including interpretation of control instructions by the SVC 23, monitoring of process amounts, instructions to monitor the reactor state to the RMM 25, and control of the nuclear power plant 1. This can be accomplished by outputting this control signal to each control operation end of the process input/output device 22. During this time, the plant status is displayed to the operator by the DSP 24 on the color CRT display 29 via the CRT display control device 26A. This helps operators understand the plant status and enables safe and reliable power plant operation.

In the above embodiment, each computer system SVC2
3, DSP 24, and RMM 25 are each implemented by one computer, but the gist remains the same even if two or more computers are used as shown in FIG. FIG. 3 shows an example in which the DSP 24 is composed of two computers. In FIG. 3, the process input/output device 22 and the CRT display control device 26 are controlled by a signal switching device 100 that switches signals between static and dynamic signals.
Shared by DSP24a, 24b, and DSP24a,
This is an example in which the functions equivalent to the DSP 24 in FIG. 1 are configured by two computer systems by connecting the two computer systems 24b with a system linkage 200.

Furthermore, in the present invention, as shown in FIG. 4, the process reading process may be made independent and the read process data may be stored on a shared memory that can be accessed by a plurality of computers. FIG. 4 shows the process data processing computer system (hereinafter SCN) via the process input/output control device 22.
) 31 reads the process amount of the nuclear power plant 1 and stores it in the shared memory (hereinafter referred to as SM) 3
Save to 2. As a result, SVC23, DSP24,
The RMM 25 does not directly use the process input/output control device 24, but only needs to access the SM 32 for process quantities. Also, in this embodiment, SCN3
1. It is also possible to make the SM32 redundant, and it is clear that the gist does not change even if this is done.

As mentioned above, nuclear power plant operation control, plant monitoring control, reactor monitoring management, color CRT
By dividing the display into nearly independent functions and using each computer system as a computer system and minimizing mutual interference between the systems, process signals from the nuclear power plant can be output (displayed) at high speed. Therefore, it is possible to replace traditional hardware such as meter recorders with high-speed color
It is possible to provide an operation control device that has the ability to centralize and centralize control using a CRT display.

As a result, operators can easily grasp the plant status and perform prompt and accurate operations, which in turn improves the safety of nuclear power plant operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the nuclear power plant operation control system of the present invention, FIG. 2 is a diagram showing an example of the plant system displayed on the CRT display of the same embodiment, and FIG. FIG. 4 is a block diagram showing the main parts of a modification of the display computer system of the present invention having a redundant configuration. FIG. 4 is a block diagram showing the main parts of a modification using a process data processing computer and a shared memory. DESCRIPTION OF SYMBOLS 1...Nuclear plant, 2...Nuclear power plant operation control device, 3...Central control panel, 21...Plant control console, 22...Process input/output device, 23...Plant monitoring control computer system (SVC), 24...
Display computer system (DSP), 25... Reactor monitoring management computer system (RMM), 26, 26A...
CRT display control device, 27... printer, 28...
CRT input/output device, 29...Color CRT display, 3
0...Alarm display device, 31...Process data processing computer system, 32...Shared memory, 100...Signal switching device, 200...System linkage.

Claims (1)

[Claims] 1 Installed in an electronic computer system that inputs signals from a detector that detects process signals of a nuclear power plant, performs predetermined calculations, and outputs the calculation results,
In a nuclear power plant operation control device equipped with a color CRT display device that displays information necessary for the operation of the nuclear power plant, inputting process signals of the nuclear power plant and storing them in a shared memory,
a display computer system that calculates the state of the process signal and displays the result on the display device; and a display computer system that inputs the process signal of the nuclear power plant, stores it in a shared memory, and performs information processing for monitoring and controlling the plant. a plant monitoring and control computer system that outputs control information to the nuclear power plant and outputs monitoring information to the display computer system as display information; A reactor monitoring and management computer that performs arithmetic processing for reactor performance evaluation and predictive monitoring based on power plant process signals, and outputs the results as a signal to the display, the plant monitoring and control computer system, or directly to peripheral equipment. a system, a direct memory access type system linkage device that enables information transmission between each of the computer systems, and an exclusive control circuit between each of the computer systems that allows access equivalent to a main storage device from each of the computer systems. A nuclear power plant operation control device comprising a shared memory having a shared memory and having a redundant configuration for at least a part of the computer system.