KR20010076717A - Advanced Alarm System of Main Control Room in Nuclear Power Plant - Google Patents

Abstract

PURPOSE: An advanced alarm system within a main control room of an atomic power station is provided to rapidly support an operator to judge and deal with situations when a plurality of alarms are generated. CONSTITUTION: A computer based display unit(100) displays alarms by dividing the alarms according to importance. A screen classifies the divided alarms into one for reactor operator and other for turbine operator and includes an alarm list and an alarm tile. An alarm list and display calling screen(120) displays the alarms by assigning the same according to generated time in order. A button box(200) divides commands for treating the generated alarms into button types and installs the same on a console of the computer based alarm display unit. An alarm response process screen displaying button allows an alarm response procedure screen to show causes and responses with respect to the generated alarms. An operation support information display symbol part(400) classifies kinds of operation support information and displays the same.

Description

Advanced Alarm System of Main Control Room in Nuclear Power Plant

The present invention relates to a state-of-the-art alarm system in a nuclear power plant main room, and fixedly installs a computer-based alarm display device in the operator workstation to display all alarms according to priority, thereby providing a plurality of alarms such as abnormal and transient driving conditions. It is intended to provide prompt support in the operator's ability to cope and make judgments when they occur.

Conventional alarm system is composed of one-to-one correspondence of each measuring instrument such as switch and sensor and main control room alarm display device. However, the alarm function is effective to the operator during normal operation of the power plant. Alarms are generated which greatly increases the number of alarms that the operator must be aware of.

In addition, it is displayed as an alarm window grouped by system regardless of the importance of the alarm, and when an alarm occurs, it is difficult for the operator to determine the priority of the countermeasures, and it is difficult to determine the time after the alarm occurs. Alarm-only cathode ray tube (hereinafter referred to as CRT) has a problem that it is difficult to find a connection with the alarm tile.

In order to solve the above problems, the present invention, by fixedly installing a computer-based alarm display device in the operator workstation to display all the alarms by priority, so that the operator of the operator when a number of alarms such as abnormal, transient driving situation occurs The goal is to provide an alarm system that can be used to assist in the determination of coping capabilities.

In order to achieve the above object, the present invention provides a computer-based display device for dividing and displaying the alarm according to the importance of the alarm, and each divided alarm into an alarm list and an alarm tile by dividing the divided alarm into an alarm for the reactor operator and the turbine operator. A screen composed of an alarm tile that is displayed, an alarm list screen for each occurrence of time assigned by assigning the alarms for each generated time, and a computer-based alarm by dividing the commands for calling the generated alarms into respective button types. It includes a button box installed on the console of the display device, an alarm response procedure screen showing the cause and action of the generated alarms, and the driving assistance information display symbol section divided into the types of driving assistance information for each operator. It is characterized by.

The present invention prioritizes according to the importance of alarms on the alarm display screen in the computer-based alarm system installed in nuclear power generation, and displays them in chronological order, or grouped type according to the layout of the power plant system In addition, the system can efficiently combine the methods of displaying the list by the order of occurrence time regardless of the priority so that the operator can use the alarm display form differently as needed.

In addition, the alarm indication is divided according to the reactor operator (RO) and the turbine operator (TO) classified according to the duty of the power plant, so that the cognitive burden is not increased even in the event of many alarms. It is a technical feature to increase the operator's ability to replace the power plant situation in a short time by facilitating the linkage.

In other words, the present invention displays all the alarms generated in the computer-based alarm display device in various forms so that the operator can easily identify and cope with the abnormal state of the power plant.

1 is a block diagram of a computer-based alarm display system to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

100: computer based display device

101, 102, 103: priority alarm display area

104: priority sign display unit

105: alarm list

106: push button type dialog box

107: scroll bar

110: alarm tile screen

120: Alarm list display call screen by occurrence time

200: button box

210: Alert tile display call button for reactor operators

220: alarm tile display call button for the turbine operator

230: Alarm list display call button for the reactor operator

240: alarm list display call button for the turbine operator

250: Reactor / turbine operator two-way alarm list display call button

260: alarm list display call button per order of occurrence time

270: alarm flashing stop button

280: alarm flashing return button

290: test unit

300: Alarm Response Procedure Screen

400: driving support information display symbol

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a computer-based alarm display system to which the present invention is applied.

Looking at the configuration of the alarm display system, the priority alarm display area (101, 102, 103) divided according to the importance of the alarm, priority symbol display unit 104 showing the priority of the alarm in letters, numbers and special display , An alarm list 105 showing an alarm having the same property in a sequential order by item, a push-button type dialog box (which is a software button) 106 displaying an alarm response procedure number shown in the alarm list, and each alarm in the alarm list. A computer-based display device 100 displaying the alarms divided according to the importance of the alarms consisting of a scroll bar 107 indicating the position of the alarms; Alarm tiles for the reactor / turbine operator and the call list button (210, 220, 230, 240 250, 260), selected to see the required screen whenever the operator wants, flashing in addition to the high priority alarms in the alarm tile and list Alarm flashing stop button 270 to stop all the alarms to stop, Alarm flashing return button 280 to instruct a command to use to release the Stop Flash (Stop Flash) function, for testing the operating performance of the alarm system A button box provided with a test unit 290 installed in the console of the computer-based alarm display device; An alarm tile screen 110 for dividing each alarm into an alarm for the reactor operator and the turbine operator and displaying the alarm list and the alarm tile screen; The alarm list display call screen 120 for each occurrence of time, which sequentially displays the alarms assigned by time, the alarm response procedure screen 300 indicating the cause of the alarm and the corresponding action, and the operation for the operator. The driving support information display symbol unit 400 is divided into types of support information and displayed.

Looking at each of the above components in accordance with the configuration as follows.

First, the alarm display includes a computer-based display device 100 showing an alarm list screen divided according to importance, an alarm list display call screen example 120 for each occurrence time according to the occurrence time sequence, and a screen 110 composed of alarm tiles.

In addition, each alarm is divided into alarms for the reactor operator and turbine operator, and consists of an alarm list screen and an alarm tile screen for the reactor operator, an alarm list screen and an alarm tile screen for the turbine operator.

By installing six hard buttons 210, 220, 230, 240, 250, and 260 for selecting each screen, the operator can see the necessary screen whenever he wants.

The alarm tile display call button 210 for a nuclear reactor driver is a screen selection button for viewing a tile alarm for the reactor driver, and the alarm tile display call button 220 for a turbine driver is a screen selection button for viewing a tile alarm for a turbine driver. In addition, the alarm list display call button 230 for the reactor operator is a screen selection button for viewing the nuclear reactor operator list screen, and the alarm list display call button 240 for the turbine operator screen selection for viewing the turbine operator list screen Button, Reactor / Turbine Operator Two-Way Alarm List Display Call Button 250 is a button for viewing a screen in which all alarms are classified according to their priorities, and the alarm list display call button per occurrence time order is displayed in order of occurrence time. This button is selected to view.

This has the advantage of reducing the cognitive burden due to the alarm because the operator can only monitor the alarm associated with his job even during the alarm runaway.

In addition, a push button type dialog box 106 in which an alarm response procedure number is displayed in an alarm list, which is a soft button that can be connected to an alarm response procedure screen 300 indicating a cause and corresponding action for the generated alarm, is displayed in each alarm list. Connected to the alarm response procedure number, the procedure can be launched from the next computer-based display.

Previously, a considerable amount of hardcopy alarm response procedures had to be searched manually by the operator according to the generated alarm, and there was a problem that the operator must record and remember. However, in the present invention, the soft button appears in the generated alarm list. By using the push-button dialog box 106, an analysis time for an alarm condition can be considerably shortened through automatic connection as an alarm response procedure in a computer-based display device next to the user.

The alarm flashing stop button 270 stops all the flashing alarms in addition to the alarm 110 having the highest priority in the alarm list and the screen 110 composed of a large information display panel of the main control room and a computer-based alarm display. Function.

This feature allows the operator to pay attention only to the highest priority alarms in the event of an unacknowledged alarm.

For example, if the alarm stop button is pressed when multiple alarms occur, the highest priority alarm is not affected by the button's function, but the priority 2 and 3 alarms remain acknowledged and the alarm set point The state returned to within is returned.

The alarm flashing return button 280 is a command used to cancel the alarm flashing stop (Stop Flash) function.

The priority alarm display areas 101, 102, 103 of the alarms used in the present invention are divided according to their importance, and the criteria are based on six important operator actions.

Significant operator actions were defined as loss of essential safety functions, loss of essential power production capabilities, violation of technical guidelines, loss of success path performance, loss of success path availability, damage to critical equipment, and human hazards.

The alarm that occurred last before the state to take important operator action was defined as a priority 1 alarm, and priority 2 was defined as the alarm prior to the last alarm that occurred before the state to take important operator action. Priority 3 alarms are general device and process-related alarms that are not related to alarms prior to the alarm that occurred last before the condition that required important operator action and important operator action.

In addition, the driving support alarm indicator 21 called “Flag”, which is distinguished from the alarm, devised a method of distinguishing and displaying the type of driving support information, which is a color and a form to distinguish the main status information of the power plant from the alarm. The distinction between alarms and information has been clarified by indicating differently.

The operation assistance information is classified into two priorities: the state that the operator must know the major change state of the power plant and the state to be aware of when necessary.

The former is defined as reactor trip and turbine trip information, information indicating the operation of engineering safety equipment, and information indicating a change in power plant mode, the latter indicating system status indicating bypass or inoperability, control system operation prohibition or intentional It is defined as an indication of the status of a measurement system function that is not available due to locking, testing or maintenance, and a status indication indicating the inconsistency between the operator's request signal and the actual instrument status.

Priorities 1 and 2 of the flag are distinguished from each other and displayed differently from a method of displaying an alarm.

As described above, according to the present invention, a computer-based alarm display device is fixedly installed in an operator workstation to display all alarms to determine the driver's coping ability and judgment in the event of multiple alarms such as abnormal or excessive driving conditions. You can apply quickly.

In addition, it is possible to shorten the operator's alarm analysis and action time by enabling automatic linkage with alarm response procedures in the computer-based alarm-only display device. Operator judgment can be clarified by dividing the information into alarms and information indicating a simple change of state of the plant.

In addition, the alarm flashing function and the alarm flashing recovery function are installed to reduce the human error of the operator by focusing attention on the highest priority alarm when the alarm is congested.

Claims (8)

In the nuclear power plant alarm system in which each measuring instrument and the main control unit alarm display device are installed in a one-to-one correspondence, A computer-based display for dividing and displaying an alarm according to the importance of the alarm; A screen composed of an alarm list and an alarm tile by dividing the divided alarms into alarms for a reactor operator and a turbine operator; An alarm list for each occurrence time and a display call screen for allocating the alarms for each occurrence of the alarms in order; A button box for dividing the commands for processing the generated alarms into respective button types and installing them in the console of the computer-based alarm display device; A button for displaying an alarm response procedure screen included in an alarm list for displaying an alarm response procedure screen indicative of a cause and an action for occurrence alarms; And An advanced warning system in a nuclear power plant main control room, characterized in that it comprises a driving support information display symbol for displaying the type of the driving support information for each operator. The display device of claim 1, wherein the computer-based display device includes: A priority alarm display area unit for dividing priorities divided by areas according to the importance of alarms; A priority symbol display unit displaying the priority of the alarm in letters, numbers, and special symbols; An alarm list sequentially displaying the alarms having the same property divided by the area by item; A push button type dialog box in which a number is assigned to an alarm corresponding procedure shown in the alarm list and divided; Advanced alarm system in the nuclear power plant main control room, characterized in that consisting of a scroll bar representing the position of each alarm shown on the alarm list. The method of claim 2, wherein the priority symbol display unit State-of-the-art alarm in a nuclear power plant main control room, based on operator action of loss of essential safety functions, loss of essential power production capabilities, violation of technical guidelines, loss of successful path performance, loss of successful path availability, damage to critical equipment, and human hazards system. 4. The method of claim 3, wherein the priority is The last alarm that occurred before the condition to be taken by the operator is a priority 1 alarm, the last alarm that occurred before the condition to be taken by an important operator action, prior to the alarm that occurred last before the status 2 and before the condition that the operator should take action Advanced alarm system in a nuclear power plant main control room, which classifies general equipment and process-related information into 3 ranks irrespective of the generated alarm and important operator measures. The method of claim 1, wherein the button box An alarm tile and list call button for the reactor / turbine operator that the operator selects to view the required screen whenever he wants; an alarm flashing stop button to stop all alarms flashing other than the high priority alarm in the alarm tile and list; And an alarm flashing return button for instructing a command used for releasing the alarm flashing stop button function and a test button for displaying a system state indicating bypass or inoperation. According to claim 1, wherein the driving assistance information display symbol unit A state-of-the-art alarm system in a nuclear power plant main control room, characterized by different colors and shapes of the operator in the first state that must know the major changes in the power plant and the second state that should be recognized if necessary. 7. The method of claim 6 wherein the first state is An advanced warning system in a nuclear power plant main control room, characterized by reactor trip and turbine trip information, information indicating the operation of engineering safety equipment, and information indicating a change in power plant mode. 7. The method of claim 6 wherein the second state is Indication of system status indicating bypass or inoperation, prohibition or intentional locking of the control system, indication of the status of instrumentation control system functions that are not available due to testing or maintenance, or inconsistencies between operator request signals and actual instrument status. An advanced alarm system in the main control room of a nuclear power plant, characterized by a display definition.