Nuclear power plant digital main control room operator operation monitoring method and system

Abstract

The invention discloses a nuclear power plant digital main control room operator operation monitoring method and system. The method comprises the following steps: firstly, screening and identifying operation activities and personnel operation which need to execute a monitoring task; secondly, monitoring content needed when key operation is executed in the monitoring task is analyzed, and the monitoring content is displayed on a corresponding monitoring task picture; finally, entering a monitoring task process, completing a monitoring task in response to the operating personnel and the operation instruction of the monitoring personnel, and initiating a monitoring application in response to the operation instruction of the operating personnel; entering a corresponding monitoring task picture in response to an operation instruction of a monitoring person; responding to operation instructions of an operator and a guardian, and gradually completing monitoring tasks of operation activities and personnel operation; and after the monitoring task is completed, in response to operation instructions of the operator and the monitoring personnel, performing voice broadcast and quitting a monitoring task picture. According to the invention, under the condition that the low risk level of human errors is guaranteed, the efficiency of operating teams to handle accidents under the accident condition is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear power plant operation monitoring, and in particular to a method and system for monitoring the operation of operators in a digital main control room of a nuclear power plant. Background Art

[0002] Nuclear power plants are large industrial systems constructed by complex system equipment, and the safety of their operation has attracted much attention from the society. Nuclear power plant personnel are the main operators of the power plant, and they have great plasticity and difficulty in controlling their physiological, psychological, social and spiritual aspects. According to the feedback reports on the operating experience of the World Association of Nuclear Operators (WANO) and my country's nuclear power plants, the incidence of unsafe incidents caused by unsafe human behavior is more than 60%. This shows that simply relying on improving the reliability of equipment cannot completely guarantee the safety of the system. Preventing and reducing human errors is very important for improving the safety of nuclear power plant operations.

[0003] Traditional monitoring operation is an administrative management method adopted to improve the correctness of operation. It means that before and during the execution of work, two people (executor and guardian) jointly perform the same task at the same time and place, one of whom operates and the other confirms simultaneously. The executor and the guardian should confirm the correctness of the equipment and the correctness of the action. The current monitoring method and process of operators in the main control room of nuclear power plants are: the operator points to the controlled equipment and reads out the controlled object and control command, the guardian stands behind the operator, confirms the controlled object and control command, and then the operator issues the command to execute. There is a lack of clear principles for the identification of monitoring tasks, a lack of clear lists of monitoring contents, and too much reliance on the work experience of the monitoring personnel. In the event of an accident, key information is easily missed, and in the event of an accident, it may lead to problems such as insufficient manpower. In the operation of nuclear power plants, there have also been actual cases where the monitoring operation system has not been fully implemented, such as the operation sheet without monitoring identification and the monitoring task without a guardian.

[0004] The development and use of human error prevention tools is one of the important measures for the management of human error prevention in nuclear power plants, which is conducive to improving the safe operation level of nuclear power plants. As one of the important human error prevention tools, it is necessary to conduct comprehensive monitoring of operations that may lead to nuclear safety, personal safety, unit operation safety or equipment damage.

[0005] The existing patent CN116414973A discloses a method and system for automatically monitoring the operation technical specifications of a nuclear power plant. Based on the operation data of the nuclear power plant, the execution data of the supervisory test procedures related to the technical specifications and the required parameters of the fuel cycle, according to the supervisory requirements in the technical specifications, it is determined whether the operation of the nuclear power plant deviates from the operation restriction conditions. The method focuses on providing automatic monitoring of the technical specifications, facilitating the operation and nuclear safety supervision, and reducing the workload of the operators.

[0006] The existing patent CN114613527A discloses a method, system and main control equipment for preventing human errors in the main control room of a nuclear power plant. The method obtains the input control commands and notification control commands of the operator workstation in real time, and issues an early warning in time to remind the operator when the two are inconsistent, so as to prevent nuclear power plant operation safety accidents caused by human factors of the operator.

[0007] In summary, the above two existing patents have not solved the problems of high human error rate and insufficient manpower level of the operating team in the monitoring operation of nuclear power plants in the prior art. Summary of the invention

[0008] Based on the above technical problems, the present invention proposes a method and system for operator operation monitoring in a digital main control room of a nuclear power plant to solve the problems of the efficiency of the operation team in handling accidents and the possible lack of manpower in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention proposes a method and system for monitoring the operation of operators in the digital main control room of a nuclear power plant. The specific technical scheme is as follows:

[0010] A method for monitoring operation of a nuclear power plant digital main control room operator, the method specifically comprising the following steps:

[0011] S1. Screen and identify operational activities and personnel operations that require monitoring tasks;

[0012] S2. Analyze the monitoring content required when executing key operations and display it on the corresponding monitoring task screen;

[0013] S3. Enter the monitoring task process, respond to the operating instructions of the operator and the monitoring personnel, and complete the monitoring of the operating activities and personnel operations.

[0014] Furthermore, the screening and identification in step S1 adopts a method combining determinism and probabilism.

[0015] Furthermore, the step S2 specifically includes: for the screened and identified operation activities and personnel operations, according to the relevant regulations and operation screen design, analyzing the monitoring content required to perform the key operation, and displaying it on the corresponding monitoring task screen;

[0016] The monitoring task screen includes monitoring content and a monitoring application list.

[0017] Furthermore, the monitoring content includes parameters and valve status required for performing monitoring tasks, and the monitoring application list includes operation instructions and operation instruction information as well as links to valves and equipment for performing key operations.

[0018] Furthermore, the step S3 specifically includes:

[0019] S31. In response to the operator's instruction, initiate a guardianship application;

[0020] S32, responding to the instruction of the guardian, entering the corresponding guardianship task screen;

[0021] S33, responding to the instructions of the operator and the supervisor, gradually completing the monitoring tasks of the operation activities and personnel operations;

[0022] S34. After the monitoring task is completed, in response to the operation of the operator and the monitoring personnel, a voice broadcast is performed and the monitoring task screen is exited.

[0023] Furthermore, the step S31 specifically includes: when a key valve or equipment that needs to be monitored is started, the system submits a monitoring application in response to an application instruction from an operator, and sends the monitoring application to the monitoring personnel.

[0024] Furthermore, the step S32 specifically includes: in response to the guardian's consent instruction, the system enters the monitoring task screen and freezes the operation menu, after the operator and the guardian read the operation instruction and operation instruction information together, in response to the guardian's next instruction, the system unfreezes the operation menu and allows the operator to proceed to the next operation.

[0025] Furthermore, the step S33 specifically includes: in response to the operator's instructions, the system sends the operator's operation content to the monitor for confirmation; after the monitor checks the actual status and monitoring content of the nuclear power plant, in response to the monitor's instructions, the system confirms the completion of the monitoring task.

[0026] Furthermore, the step S34 specifically includes: in response to the operator's application for exit instruction, the system sends the exit application to the guardian for confirmation; in response to the guardian's consent instruction, the system makes a voice notification and exits the guardianship task screen.

[0027] The present invention also provides a nuclear power plant digital main control room operator operation monitoring system, the system is used to implement the above-mentioned nuclear power plant digital main control room operator operation monitoring method, the system includes a monitoring task screening module, a monitoring content recognition module connected to the output end of the monitoring task screening module, and a monitoring operation process module connected to the output end of the monitoring content recognition module;

[0028] The monitoring task screening module is used to screen and identify the operation activities and personnel operations that need to perform monitoring tasks in the digital main control room of the nuclear power plant;

[0029] The monitoring content recognition module is used to analyze the monitoring content of each monitoring task and integrate the monitoring content into the monitoring task screen;

[0030] The monitoring operation process module is used to complete the monitoring of operating activities and personnel operations in response to instructions from operators and monitoring personnel.

[0031] Based on the above technical solution, the present invention proposes a method and system for monitoring the operation of operators in a digital main control room of a nuclear power plant, which has at least the following beneficial effects:

[0032] 1. The present invention proposes a method and system for operator operation monitoring in a digital main control room of a nuclear power plant. Based on digital instrumentation and control technology, a digital main control room operator operation monitoring system is established to automatically identify tasks that require monitoring and gradually complete monitoring tasks in response to instructions from relevant personnel, which effectively solves the existing problems of insufficient manpower and inadequate implementation of the monitoring system.

[0033] 2. The present invention proposes a method and system for monitoring the operation of operators in the digital main control room of a nuclear power plant, which uses a combination of determinism and probability theory to screen and identify the operating activities and personnel operations in the main control room of a nuclear power plant. The two are screened and identified based on different rule standards, avoiding the limitations of a single method.

[0034] 3. The present invention proposes a method and system for monitoring operation by operators in a digital main control room of a nuclear power plant, which displays the monitoring content and application monitoring list of the current monitoring task on the same monitoring task screen, thereby facilitating the operation of operators and monitors and improving the efficiency of executing monitoring tasks.

[0035] 4. The present invention proposes a method and system for monitoring the operation of operators in the digital main control room of a nuclear power plant. During the monitoring operation process, in addition to operators and monitors, other relevant personnel (such as safety workers and shift supervisors) are added to check and supervise, further improving the reliability of monitoring and preventing and reducing human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 The present invention proposes a flow chart of a method for operator operation monitoring in a digital main control room of a nuclear power plant;

[0038] Figure 2 Schematic diagram of the monitoring content screen in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] The present invention is further described in detail below in conjunction with specific embodiments. These embodiments should not be construed as limiting the scope of protection claimed by the present invention.

[0041] Example 1

[0042] In order to solve the problems of the efficiency of the operation team in handling accidents and the possible lack of manpower in the prior art, the present invention proposes a method and system for monitoring the operation of operators in a digital main control room of a nuclear power plant.

[0043] To achieve the above-mentioned object, the present invention proposes a method and system for operator operation monitoring in a digital main control room of a nuclear power plant.

[0044] See also Figure 1 As shown, this embodiment proposes a method for operator operation monitoring in a digital main control room of a nuclear power plant, which specifically includes:

[0045] S1. Screen and identify operational activities and personnel operations that require monitoring tasks;

[0046] S2. Analyze the monitoring content required when executing key operations and display it on the corresponding monitoring task screen;

[0047] S3. Enter the monitoring task process, respond to the operating instructions of the operator and the monitoring personnel, and complete the monitoring of the operating activities and personnel operations.

[0048] In this embodiment, the combination of determinism and probability theory can be used to screen and identify the operation activities and personnel operations that require monitoring tasks. The combination of determinism and probability theory is the method used to identify important personnel actions in the human factors engineering design of nuclear power plants, but this method has not been used in the current nuclear power plants to determine the actions of monitoring operations. It is more based on experience judgment or reference to the experience of similar power plants.

[0049] Specifically, the determination of ethics is to identify the operation activities and personnel operations that have potential consequences for safety, environment, important equipment and occupational safety, as well as the operation activities and personnel operations whose potential consequences are immediately apparent and irreversible, through analysis of accident operation reports, expert judgment, and reference to nuclear power plant implementation experience. Potential consequences refer to direct consequences that will result if an operation goes wrong.

[0050] Furthermore, key personnel actions to prevent or mitigate the consequences of an accident are identified through accident analysis or diversity and defense in depth (D3) analysis under specific plant transient, design basis accident or beyond design basis accident scenarios.

[0051] Specifically, probability theory identifies key tasks and operations in human-caused incidents through probabilistic safety analysis and key risk indicators.

[0052] First, in the probabilistic safety analysis (including internal events of power operation conditions, internal events of low power and shutdown conditions, fire, flooding and earthquake events), it was determined that the core damage frequency (CDF) result would be greater than 1×10 -5 / reactor-year or large release frequency (LRF) result greater than 1×10 -6 / Key tasks and operations in human factors incidents over the years.

[0053] Then, the key tasks and operations in human-caused events are identified through risk-important indicators, including risk increase factor (RIF) and risk reduction factor (RDF).

[0054] The method of identification through risk increase factor is as follows: the risk increase factor gives an index for measuring the importance of personnel actions to maintaining the risk level of core damage or large-scale radioactive release in the current nuclear power plant. For this purpose, in the process of calculating the risk increase factor, the core damage frequency or large-scale radioactive release frequency should be recalculated under the assumption that a certain personnel action is wrong (that is, the probability of error is 1). The risk importance of each personnel action is defined as the multiple of the increase in the core damage frequency or large-scale radioactive release frequency when the probability of error is set to 1.

[0055] The risk increase factor is calculated as follows:

[0056]

[0057] Among them, Q i represents the error probability of human action, Q Total Represents the frequency of core damage or large radioactive release.

[0058] According to the degree of influence on the final quantitative results of the probabilistic safety analysis, the risk increase factor threshold of risk-critical tasks is set to 3. Operator actions in the main control room that are greater than this threshold require monitoring activities.

[0059] The method of identification through risk reduction factors is as follows: the risk reduction factor gives an index for measuring the importance of personnel actions in reducing the risk level of core damage or large-scale radioactive release in the current nuclear power plant. For this purpose, in the calculation process of the risk reduction factor, the core damage frequency or large-scale radioactive release frequency should be recalculated under the assumption that a certain personnel action is successful (i.e., the probability of error is 0). The risk importance of each personnel action is defined as the multiple by which the core damage frequency or large-scale radioactive release frequency is reduced when the probability of error is set to 0.

[0060] The formula for calculating the risk reduction factor is as follows:

[0061]

[0062] Among them, Q i represents the error probability of human action, Q Total Represents the frequency of core damage or large radioactive release.

[0063] According to the degree of influence on the final quantitative results of the probabilistic safety analysis, the risk reduction factor threshold of risk-critical tasks is set to 1.1. Operator actions in the main control room that are greater than this threshold require monitoring activities.

[0064] In a specific embodiment, taking a domestic reactor type nuclear power plant as an example, a list of operating activities and personnel operations that need to be monitored is screened and identified by combining determinism and probability theory as shown in Table 1.

[0065] Table 1 List of operational activities and personnel operations that require monitoring

[0066]

[0067]

[0068] In this embodiment, the monitoring content required for monitoring when executing key operations is identified and displayed on the monitoring task screen, specifically including:

[0069] According to the selected operation activities and personnel operations that need to perform monitoring tasks, according to the relevant regulations and operation screen design, the monitoring content required for monitoring when performing key operations is identified and integrated and displayed on the corresponding monitoring task screen for use by operators and supervisors when performing monitoring tasks. The monitoring task screen includes two parts: monitoring content and application monitoring list. The monitoring content is the key parameters required for the supervisor to perform the monitoring task, the system valve status, etc. The application monitoring list includes the "application monitoring" instruction, the "next step" confirmation instruction after completing the task, the purpose, risk, main operation steps and other information of the operation instruction, and the key valve or equipment link for performing key operations.

[0070] In a specific embodiment, taking "operation of the active CIS system in the event of an accident" as an example, the monitoring task screen of the monitoring task integration refers to Figure 2 As shown, the left side of the screen is the monitoring content. According to the analysis of the regulations, the contents that need to be monitored include the pressurizer pressure, core outlet temperature, RCS pressure, and the status of the pressurizer safety valve. The right side of the screen is the application monitoring list, which includes the "next step" confirmation instruction and the purpose, risk, and main operation steps of the operation instruction. The above content is integrated into the same task screen for the monitoring personnel to confirm the power plant status when performing monitoring.

[0071] In this embodiment, the monitoring task process specifically includes:

[0072] S31. In response to the operator's operation instruction, the system initiates a monitoring application;

[0073] Specifically, first identify the operating activities and personnel operations in the main control room that need to perform monitoring tasks, and determine the operators and monitors who perform monitoring tasks, usually reactor operators or machine operators. When the accident conditions of the nuclear power plant are met and the key valves or equipment that need monitoring operations are to be started, the operator submits a monitoring application through the operation interface. In response to the operator's application instructions, the system initiates a monitoring application and sends a monitoring application to the monitor (deputy shift supervisor). At the same time, the safety engineer and the shift supervisor also receive the monitoring application. The safety engineer and the shift supervisor can click to enter to view the operation progress, but they do not have operation authority.

[0074] S32, responding to the operation instruction of the guardian, entering the corresponding guardianship task screen;

[0075] Specifically, after the guardian receives the guardianship application at the workbench, he / she clicks to agree. The system responds to the guardian's consent instruction and enters the corresponding guardianship task screen and freezes the operation menu. The operator and the guardian read the operation instructions together and understand the purpose and risks of the operation instructions. After the guardian clicks next, the system unfreezes the operation menu and allows the operator to proceed to the next step.

[0076] S33, responding to the operation instructions of the operator and the guardian, gradually completing the guardianship task;

[0077] Specifically, in response to the operating instructions of the operator and the monitor, the system integrates the key valves or equipment required for the monitoring task operation into the monitoring task screen. After the operator completes the operation in the screen, he clicks Next. The system responds to the operator's operating instructions and sends them to the monitor for confirmation. The monitor checks the actual status of the nuclear power plant and the monitoring content. After confirming that there are no errors, he clicks Next to confirm the completion of the operation and the monitoring task is completed.

[0078] S34. After the monitoring task is completed, in response to the operation of the operator and the monitoring personnel, the system makes a voice announcement and exits the monitoring task screen.

[0079] Specifically, after the monitoring task is completed, the operator verifies the on-site status and applies to exit the monitoring list after confirming that it is correct. The system responds to the operator's instructions and sends an exit application to the supervisor. After the supervisor confirms again that it is correct, he clicks Next to agree to exit the monitoring task screen. The system responds to the supervisor's operating instructions and completes the corresponding operation through voice notification. The operator, supervisor, safety worker and shift supervisor exit the monitoring task screen together.

[0080] Example 2

[0081] This embodiment proposes a nuclear power plant digital main control room operator operation monitoring system, which is used to implement a nuclear power plant digital main control room operator operation monitoring method proposed in Example 1.

[0082] See also Figure 2 As shown, the system includes a monitoring task screening module, a monitoring content identification module, and a monitoring operation process module. The output end of the monitoring task screening module is connected to the input end of the monitoring content identification module, and the output end of the monitoring content identification module is connected to the input end of the monitoring operation process module.

[0083] Among them, the monitoring task screening module is used to screen and identify the operating activities and personnel operations that need to perform monitoring tasks in the digital main control room of the nuclear power plant. The monitoring task screening module includes a deterministic screening unit and a probabilistic screening unit. The deterministic screening unit and the probabilistic screening unit are combined to screen and identify the operating activities and personnel operations that need to perform monitoring tasks.

[0084] The monitoring content identification module is used to analyze the monitoring content of each monitoring task, and integrate the monitoring content into the monitoring task screen. The monitoring content screen includes two parts: monitoring content and application monitoring list.

[0085] The monitoring operation process module is used for operators and supervisors to complete the entire monitoring operation process. When the key valves or equipment that need to perform monitoring tasks are started, the system initiates a monitoring task application in response to the operator's instructions, and the supervisor and other relevant personnel receive the monitoring application at the same time; in response to the supervisor's instructions, the system enters the monitoring task screen; in response to the operator and supervisor's instructions, the monitoring task of the entire operation process is completed; finally, in response to the operator and supervisor's instructions, the system makes a voice notification and exits the monitoring task screen.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0087] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0088] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, which can be embodied in any computer-readable medium for use by an instruction execution system, apparatus or device (such as a computer-based system, a system including a processor or other system that can fetch instructions from an instruction execution system, apparatus or device and execute instructions), or used in combination with these instruction execution systems, apparatuses or devices.

[0089] It should be understood that each part of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system.

[0090] It should be noted that, in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. A method for monitoring the operation of operators in a digital main control room of a nuclear power plant, characterized in that: The method specifically comprises the following steps: S1. Screen and identify operational activities and personnel operations that require monitoring tasks; S2. Analyze the monitoring content required when executing key operations and display it on the corresponding monitoring task screen; S3. Enter the monitoring task process, respond to the operating instructions of the operator and the monitoring personnel, and complete the monitoring of the operating activities and personnel operations.

2. The method for monitoring the operation of the operator in the digital main control room of a nuclear power plant according to claim 1, characterized in that: The screening and identification in step S1 adopts a method combining determinism and probabilism.

3. The method for monitoring the operation of the operator in the digital main control room of a nuclear power plant according to claim 1, characterized in that: The step S2 specifically includes: analyzing the monitoring content required to perform key operations for the screened and identified operating activities and personnel operations, and displaying them on the corresponding monitoring task screen; The monitoring task screen includes monitoring content and a monitoring application list.

4. The method for monitoring the operation of the operator in the digital main control room of a nuclear power plant according to claim 3, characterized in that: The monitoring content includes the parameters and valve status required for performing the monitoring task, and the monitoring application list includes operation instructions and operation instruction information and links to valves and equipment that perform key operations.

5. The method for monitoring the operation of operators in the digital main control room of a nuclear power plant according to claim 1, characterized in that: The step S3 specifically includes: S31. In response to the operator's instruction, initiate a guardianship application; S32, responding to the instruction of the guardian, entering the corresponding guardianship task screen; S33, responding to the instructions of the operator and the supervisor, gradually completing the monitoring tasks of the operation activities and personnel operations; S34. After the monitoring task is completed, in response to the operation of the operator and the monitoring personnel, a voice broadcast is performed and the monitoring task screen is exited.

6. The method for monitoring the operation of the operator in the digital main control room of a nuclear power plant according to claim 5, characterized in that: The step S31 specifically includes: when a key valve or equipment that needs to be monitored is started, the monitoring instruction system makes a monitoring application in response to the operator's application, and sends the monitoring application to the monitoring personnel.

7. The method for monitoring the operation of the operator in the digital main control room of a nuclear power plant according to claim 5, characterized in that: The step S32 specifically includes: in response to the guardian's consent instruction, the system enters the monitoring task screen and freezes the operation menu. After the operator and the guardian read the operation instruction and operation instruction information together, in response to the guardian's next instruction, the system unfreezes the operation menu and allows the operator to enter the next operation.

8. The method for monitoring the operation of operators in the digital main control room of a nuclear power plant according to claim 5, characterized in that: The step S33 specifically includes: in response to the operator's instruction, the system sends the operator's operation content to the monitor for confirmation; after the monitor checks the actual status and monitoring content of the nuclear power plant, in response to the monitor's instruction, the system confirms that the monitoring task is completed.

9. The method for monitoring the operation of operators in the digital main control room of a nuclear power plant according to claim 5, characterized in that: The step S34 specifically includes: in response to the operator's application for exit instruction, the system sends the exit application to the guardian for confirmation; in response to the guardian's consent instruction, the system makes a voice notification and exits the guardianship task screen.

10. A system for monitoring operator operation in a digital main control room of a nuclear power plant, the system being used to implement the method for monitoring operator operation in a digital main control room of a nuclear power plant as claimed in any one of claims 1 to 9, characterized in that: The system includes a monitoring task screening module, a monitoring content identification module connected to the output end of the monitoring task screening module, and a monitoring operation process module connected to the output end of the monitoring content identification module; The monitoring task screening module is used to screen and identify the operation activities and personnel operations that need to perform monitoring tasks in the digital main control room of the nuclear power plant; The monitoring content recognition module is used to analyze the monitoring content of each monitoring task and integrate the monitoring content into the monitoring task screen; The monitoring operation process module is used to complete the monitoring of operating activities and personnel operations in response to instructions from operators and monitoring personnel.

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