Method and system for generating nuclear power plant operation procedure on basis of digital twin platform

A digital twin platform integrates nuclear power plant data to create user-customized operation procedures, enhancing safety and efficiency by reducing human error and delays through real-time assistance functions.

WO2026101386A1PCT designated stage Publication Date: 2026-05-15KOREA HYDRO & NUCLEAR POWER CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
KOREA HYDRO & NUCLEAR POWER CO LTD
Filing Date
2025-03-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Nuclear power plant operation and maintenance procedures rely heavily on operator skill, leading to potential human errors and delays due to the lack of integrated data utilization and assistance tools.

Method used

A digital twin platform-based system that integrates data from various legacy systems to generate user-customized operation procedures, providing real-time assistance functions such as variable monitoring, 3D modeling, simulation, and risk prediction, reducing human error and delays.

Benefits of technology

The system reduces operator workload and prevents human errors by offering intelligent, customizable procedures, ensuring safe and efficient nuclear power plant operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a method for generating a nuclear power plant operation procedure on the basis of a digital twin platform, comprising the steps of: retrieving the original text of an operation procedure by means of an operation document system linked to a digital twin platform; using a text scripting function of a digital twin platform configuration solution so as to digitize the retrieved original text of the operation procedure; and using the digital operation procedure and a plurality of performance auxiliary functions so as to generate a user-customized operation procedure.
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Description

Method and System for Generating Nuclear Power Plant Operation Procedures Based on a Digital Twin Platform

[0001] The present invention relates to a method and system for generating nuclear power plant operation procedures, and more specifically, to a method and system for generating nuclear power plant operation procedures based on a digital twin platform.

[0002] In relation to the operation of nuclear power plants, numerous maintenance and operation procedures are being executed, and in most cases, these procedures involve complex activities such as performing calculations by referencing variables from other documents or periodically checking the real-time process values ​​of the nuclear power plant.

[0003] At this time, the accuracy of the execution of the operating procedure relies solely on the capabilities of operators and maintenance personnel, and there are no means available for nuclear power plant personnel to utilize as assistance during the execution of the operating procedure; consequently, problems such as human error and delays in the execution of the operating procedure may occur.

[0004] [Prior Art Literature]

[0005] [Patent Literature]

[0006] (Patent Document 1) Republic of Korea Registered Patent 1917038 (Integrated management of reference documents required for the preparation of nuclear power plant commissioning test procedures and procedure representation device, Korea Hydro & Nuclear Power Co., Ltd.)

[0007] (Patent Document 2) Republic of Korea Registered Patent 1772260 (System and method for managing computerized procedures for nuclear power plants, Korea Hydro & Nuclear Power Co., Ltd.)

[0008] (Patent Document 3) U.S. Patent 7813817 (Computerized procedures system, Westinghouse Electric Company)

[0009] The technical objective of the present invention to solve the aforementioned problems is to provide a system and a method for implementing a solution that enables integrated utilization of nuclear power plant operation data based on facility information through a digital twin platform, and based on this, generating a digital operation procedure that enables the performance of auxiliary functions for operators and maintenance personnel during the execution of nuclear power plant maintenance and operation procedures.

[0010] However, the problem to be solved by the present invention is not limited thereto and may be expanded in various ways without departing from the spirit and scope of the present invention.

[0011] To achieve the above objectives, a method for generating a nuclear power plant operation procedure based on a digital twin platform according to one embodiment may include the steps of: calling the original text of the operation procedure through an operation document system linked to the digital twin platform; digitizing the original text of the called operation procedure using a text scripting function of the digital twin platform configuration solution; and generating a user-customized operation procedure using the digital operation procedure and a plurality of execution assistance functions.

[0012] The step of calling the original text of the operating procedure through an operating document system linked to the digital twin platform may include the step of collecting data or documents from at least one legacy system generated during nuclear power plant operation based on facility information.

[0013] The above at least one legacy system may include an operational document system, a real-time process signal monitoring system, a maintenance management system, an integrated simulation system, a 3D data system, a personnel information system, and a technical support system.

[0014] The above plurality of performance assistance functions may include a function that links and utilizes data included in the above operation document system as function location data of the above user-customized operation procedure.

[0015] The above plurality of execution assistance functions may include a function that provides auxiliary data necessary for executing an operation procedure, which enables the verification of process variables required for use during the execution of the operation procedure by linking the data of the real-time process signal monitoring system based on equipment standards.

[0016] The above multiple performance assistance functions may include a function that provides 3D field installation status and 3D disassembly data of the equipment subject to procedure execution by utilizing the maintenance management system.

[0017] The above plurality of execution assistance functions may include a function that utilizes the text scripting function of the digital twin platform to convert the calculation expression within the original text of the operation procedure into a development language desired by the user, and receives the input value of the calculation expression converted into the development language desired by the user through the real-time process signal monitoring system and user input.

[0018] The above plurality of performance assistance functions may include a function to automatically receive specific data tags of the real-time process signal system according to the period and duration specified in the operation procedure.

[0019] The above multiple performance assistance functions may include a function that detects abnormal changes in the real-time process signal data and evaluates risks through the analysis of the real-time process signal data and the generation of a prediction model, and provides countermeasures.

[0020] The above plurality of execution assistance functions may include a function to predict the results of the execution of the operation procedure by performing simulations of normal and abnormal operation procedures in advance in conjunction with the integrated simulation system.

[0021] The above multiple performance assistance functions may include a function that automatically links the person in charge of each task in conjunction with the nuclear power plant operation task distribution information provided by the personnel information system.

[0022] The above plurality of performance assistance functions may include a function to link operation history data related to equipment that performs operation procedures in conjunction with the above technical support system.

[0023] The user-customized operation procedure based on the digital twin platform can be registered and shared on a marketplace.

[0024] The disclosed technology may have the following effects. However, this does not mean that a specific embodiment must include all of the following effects or only the following effects; therefore, the scope of the rights of the disclosed technology should not be understood as being limited by this.

[0025] According to the method and system for generating operation procedures based on a digital twin platform according to the embodiments of the present invention described above, the workload of operators during the execution of nuclear power plant maintenance and operation procedures is reduced, and the occurrence of human error by operators and time delays in the execution of procedures are prevented, thereby ensuring the safe operation of the nuclear power plant.

[0026] Furthermore, the developed operating procedures enable the creation and utilization of various intelligent functions through text scripting capabilities and the diversification of linked data, tailored to the user's purpose of use.

[0027] In addition, the developed operating procedures can be shared through the nuclear power plant user marketplace, and it is possible to build an advanced database through the imitation and modification of functions among users.

[0028] FIG. 1 is a block diagram of a system for generating an operation procedure based on a digital twin platform using a legacy system according to an embodiment of the present invention.

[0029] FIG. 2 is a figure showing a legacy system according to one embodiment of the present invention.

[0030] FIG. 3 is a flowchart showing a method for generating an operation procedure based on a digital twin platform according to an embodiment of the present invention.

[0031] Figure 4 is a figure showing an example of the result of calling the original text of a procedure through an operation document system linked to a nuclear power plant digital twin platform according to one embodiment of the present invention.

[0032] FIG. 5 is a figure showing an example of the result of digitizing an operation procedure using a text scripting function linked to a nuclear power plant digital twin platform according to one embodiment of the present invention.

[0033] FIGS. 6a to 6f are drawings showing auxiliary functions according to an embodiment of the present invention.

[0034] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail.

[0035] However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0036] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0037] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0038] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0039] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0040] Hereinafter, preferred embodiments of the present invention will be described clearly and in detail with reference to the attached drawings so that a person skilled in the art can easily practice the present invention.

[0041] FIG. 1 is a block diagram of a system for generating an operation procedure based on a nuclear power plant digital twin platform according to one embodiment of the present invention.

[0042] A system (100) for generating operation procedures based on the nuclear power plant digital twin platform illustrated in FIG. 1 may include a data collection and conversion module (110), an auxiliary function generation module (120), an operation procedure generation module (130), and a digital twin platform (140).

[0043] A data collection and conversion module (110) based on a digital twin platform (140) can collect data or documents from various legacy systems (150) generated during nuclear power plant operation based on facility information, and can digitize and convert the collected data or documents. For example, a Korean file of the original operating procedure can be converted into HTML format and digitized through a text scripting function.

[0044] The auxiliary function creation module (120) can create auxiliary functions that can be linked to the operation procedure creation module (130) among the functions of each of the legacy systems (150).

[0045] The types of legacy systems (150) that can be linked with the digital twin platform (140) are shown in FIG. 2.

[0046] The legacy system (200) illustrated in FIG. 2 may include an operational document system (210), a real-time process signal monitoring system (220), a maintenance management system (230), an integrated simulation system (240), a 3D data system (250), a personnel information system (260), and a technical support system (270).

[0047] The operation document system (210) is an integrated database system that manages all documents produced and used throughout the entire operation cycle of a nuclear power plant, from construction to decommissioning. The data primarily used during the operation of the nuclear power plant includes operation procedures, system drawings in the mechanical, electrical, and instrumentation fields, and technical standard information. All of the above data are in the form of document formats, and during the process of generating the operation procedures of the present invention, professional utilization through conversion to HTML format and linked utilization as functional location data are possible.

[0048] The real-time process signal monitoring system (220) is a system that manages system operation variables collected in real time through measuring instruments installed in the system at the nuclear power plant site by creating a database. It has an effective signal range and alarm setting value for each signal, and allows for integrated use to check equipment information and system information in real time during the process of generating operation procedures. In addition, through analysis and prediction of process signals, it can be used as input data for implementing auxiliary functions when executing operation procedures, and it can detect abnormal changes in real-time process signal data, assess risks, and provide countermeasures.

[0049] The integrated simulation system (240) is a simulation system capable of analyzing the nuclear power plant system based on the real-time status of the power plant, and is a system capable of simulating the behavior of the actual power plant, such as fluid models, core and thermal hydraulic models, and logic control circuit models. The nuclear power plant operation procedure can simulate the normal operation procedure and abnormal operation procedure to be carried out in conjunction with the integrated simulation system in advance, thereby enabling the simulation of the results of the operation procedure execution.

[0050] The 3D data system (250) is a system for managing 3D model data of a nuclear power plant, and based on original data in dgn format, it is possible to output model data in a format desired by the user. The implemented models can be broadly classified into structures, equipment, instruments, and piping, and in the case of equipment models, it can provide data at a level where disassembly and assembly at the component level is possible. It can be used as linked data to enhance understanding at the equipment level in relation to the generation of operation procedures.

[0051] The personnel information system (260) is a system for managing the organizational structure according to the division of nuclear power plant operation tasks, and can reflect changes in organizational details. It can also be used as a function to automatically link the person in charge of each task in conjunction with the operation procedure.

[0052] The maintenance management system (230) is a system that supports the management of failures and maintenance tasks of nuclear power plant equipment, and provides data such as a list of failure / maintenance status, required materials, and the execution history of operation procedures of related equipment. It is also possible to implement a function that links and utilizes the execution history of past operation procedures in conjunction with operation procedures.

[0053] The technical support system (270) is a system that manages domestic and foreign nuclear power plant operation experience data, provides maintenance and operation experience data based on facility information, and manages the history of experience dissemination for the same type of power plant. It is possible to implement a function that links with the nuclear power plant operation procedure to perform the procedure and utilize experience data related to the target facility.

[0054] The operation procedure generation module (130) can generate auxiliary materials necessary for performing the operation procedure, generate a function to automatically perform the operation procedure, and generate a function to detect and respond to abnormal changes in data used in the operation procedure.

[0055] FIG. 3 is a flowchart showing a method for generating an operation procedure document on a digital twin platform that can assist in the execution of procedures by an operator and a maintenance worker according to an embodiment of the present invention.

[0056] A method (300) for generating a user-customized operation procedure based on a digital twin platform that can assist in the execution of procedures by operators and maintenance personnel illustrated in FIG. 3 may include the steps of: calling the original text of the procedure through an operation document system linked to the nuclear power plant digital twin platform (S310); digitizing the original text of the operation procedure using a text scripting function (S320); generating an auxiliary function required for nuclear power plant operation based on the operation procedure in digital format (S330); and generating and registering a user-customized operation procedure using the operation procedure in digital format and the execution auxiliary function (S340).

[0057] In the step (S340) of creating a user-customized operation procedure using digital operation procedure documents and execution assistance functions and registering it in a marketplace

[0058] 1) It is possible to generate user-customized operating procedures that provide auxiliary materials necessary for executing the operating procedures. Specifically, by linking data from a real-time process signal monitoring system to the digital operating procedure based on equipment, it is possible to identify process variables that require immediate use during the execution of the operating procedure. In addition, by utilizing a maintenance management system, it is possible to verify the on-site installation status and 3D exploded model of the equipment executing the operating procedure.

[0059] 2) It is possible to generate operational procedures that provide a function for automatically executing the operational procedures. Specifically, by utilizing the text scripting function of the digital twin platform, it is possible to implement the calculation formulas provided in the original operational procedure text using a development language of the user's choice and create a function to receive the calculation input values ​​through a real-time process signal monitoring system and user input. Additionally, it is possible to create a function that automatically receives specific data tags from the real-time process signal system according to the cycle and period specified in the operational procedure.

[0060] 3) Through the data analysis of real-time process signals related to the execution of operating procedures and the creation of a prediction model, it is possible to create an auxiliary function capable of detecting and responding to abnormal changes in data used in operating procedures.

[0061] Figure 4 is a figure showing an example of the result of calling the original text of an operation procedure through an operation document system linked to a nuclear power plant digital twin platform according to one embodiment of the present invention.

[0062] In FIG. 4, when a user selects a node (420) displayed on the nuclear power plant digital twin platform (410), the operational document system linked to the nuclear power plant digital twin platform can display a list of operational procedures (430) associated with the selected node (420).

[0063] FIG. 5 is a figure showing an example of the result of digitizing an operation procedure using a text scripting function linked to a nuclear power plant digital twin platform according to one embodiment of the present invention.

[0064] Figure 5 shows that when a user selects a shutdown margin (520) displayed on the nuclear power plant digital twin platform (410), a digital operation procedure (530) digitized from the operation procedure related to the shutdown margin (520) can be output.

[0065] FIGS. 6a to 6f are drawings showing auxiliary functions according to an embodiment of the present invention.

[0066] Figure 6a shows that by linking data from a real-time process signal monitoring system to a digital operation procedure based on equipment standards, process variables that need to be utilized immediately during the execution of the operation procedure can be identified.

[0067] Figures 6b and 6c show that a maintenance management system can provide the field installation status and 3D exploded model of the equipment performing the operation procedure.

[0068] Figure 6d shows that by utilizing the text scripting function of the digital twin platform, it is possible to create a function that implements the calculation formula provided in the original text of the operation procedure through a development language of the user's choice and receives the input value of the calculation through a real-time process signal monitoring system and user input.

[0069] Figure 6e shows that a function can be created to automatically input specific data tags of a real-time process signal system according to the cycle and period specified in the operation procedure.

[0070] Figure 6f shows that data analysis and prediction models of real-time process signals related to the operation of the operating procedure can be generated.

[0071] [Explanation of the symbol]

[0072] 100: System for generating operating procedures based on a nuclear power plant digital twin platform

[0073] 110: Data Collection and Transformation Module

[0074] 120: Auxiliary Function Creation Module

[0075] 130: Operational Procedure Generation Module

[0076] 140, 410: Digital Twin Platform

[0077] 150, 200: Legacy System

[0078] 300: How to Create Custom Operational Procedures

[0079] 420: Node

[0080] 430: Node Operation Procedures

[0081] 530: Digital Operating Procedures

Claims

1. A method for generating nuclear power plant operation procedures based on a digital twin platform, A step of retrieving the original text of the operational procedure through an operational document system linked to the digital twin platform; A step of digitizing the original text of the called operating procedure using the text scripting function of the digital twin platform configuration solution; and A method for generating a nuclear power plant operation procedure based on a digital twin platform, comprising the step of generating a user-customized operation procedure using the above-mentioned digital operation procedure and a plurality of execution assistance functions.

2. In Paragraph 1, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the step of calling the original text of the operation procedure through an operation document system linked to the digital twin platform includes the step of collecting data or documents from at least one legacy system generated during nuclear power plant operation based on facility information.

3. In Paragraph 2, A method for generating nuclear power plant operation procedures based on a digital twin platform, wherein at least one legacy system comprises an operation document system, a real-time process signal monitoring system, a maintenance management system, an integrated simulation system, a 3D data system, a personnel information system, and a technical support system.

4. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the above-mentioned plurality of performance assistance functions include a function that links and utilizes data included in the above-mentioned operation document system as functional location data of the above-mentioned user-customized operation procedure.

5. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the plurality of above-mentioned performance assistance functions include a function that provides procedure performance assistance data that enables verification of process variables required for use during the execution of the operation procedure by linking the data of the real-time process signal monitoring system based on equipment standards.

6. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the plurality of performance assistance functions include a function that provides 3D field installation status and 3D disassembly data of the equipment performing the operation procedure using the maintenance management system.

7. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the above-mentioned plurality of performance assistance functions include a function that utilizes the text scripting function of the digital twin platform to convert an operation expression within the original text of the operation procedure into a development language desired by the user, and a function that receives an input value of the operation expression converted into the development language desired by the user through the real-time process signal monitoring system and user input.

8. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the above-mentioned plurality of performance assistance functions include a function to automatically receive specific data tags of the real-time process signal system according to the period and duration specified in the operation procedure.

9. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the plurality of performance assistance functions include a function that detects abnormal changes in the real-time process signal data and evaluates risks and provides countermeasures through the analysis of the real-time process signal data and the generation of a prediction model.

10. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the plurality of execution assistance functions described above include a function to predict the results of the execution of the operation procedure by performing simulations of normal operation procedures and abnormal operation procedures in advance in conjunction with the integrated simulation system.

11. In Paragraph 3 A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the above-mentioned plurality of performance assistance functions include a function that automatically links the person in charge of each task in conjunction with nuclear power plant operation task distribution information provided by the personnel information system.

12. In Paragraph 3, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the above-mentioned plurality of performance assistance functions include a function to link operation history data of a facility performing the operation procedure in conjunction with the above-mentioned technical support system.

13. In Paragraph 1, A method for generating a nuclear power plant operation procedure based on a digital twin platform, wherein the user-customized operation procedure based on the digital twin platform is registered and shared in a marketplace.