Model-based nuclear equipment evaluation simulation method and system

Abstract

This application discloses a model-based nuclear equipment evaluation simulation method and system, including an equipment top-level requirement module, a function realization module, a logical architecture construction module, an evaluation simulation setting module, a function evaluation module, a comprehensive performance evaluation module, a data information communication module, and a model library module. This application combines the top-down decomposition of the index system in model-based system engineering with the bottom-up integrated calculation of equipment and systems in nuclear simulation technology to realize an integrated model representation of the index requirements, design proposals, performance evaluation and argument optimization of nuclear equipment, support the uniformity and traceability of data information of various related disciplines, specialties and fields in the complex system engineering of nuclear equipment, and improve the efficiency of the design and research and development of nuclear equipment in an intelligent and digitalized manner.

Description

[Technical field]

[0001] The present application relates to the field of simulation technology for nuclear equipment, and more particularly to a model-based method and system for evaluating and simulating nuclear equipment. [Background technology]

[0002] In response to the current expanding requirements of the marine energy market, various new types of marine nuclear device design concepts are emerging one after another, such as marine nuclear floating platforms, deep sea working nuclear submarines, nuclear unmanned underwater vehicles, etc. However, due to the lack of mature experience and references in the design and research and development of new nuclear devices, the maturity of the technology is relatively low at the design proposal stage, and they face unexpected technical, schedule and financial risks.

[0003] The design and development of nuclear equipment is characterized by a long cycle and many couplings, and always involves changes and adjustments to the overall plan, user requirements, and technical indicators. However, most of the traditional evaluation and optimization of nuclear equipment is based on document format, and the amount of adjustment work for technical documents and design drawings after design changes is huge, resulting in a huge waste of resources such as manpower, progress, and expenses. At the same time, after design changes, other related index parameters and overall technical performance may not meet the overall requirements and technical requirements, which is likely to cause problems such as plan non-convergence in the process of repeated design adjustment, and the technical state of the system may be difficult to harden. In addition, evaluation and optimization work is often carried out independently between each system, specialty, and stage, and the integration of changes, verification and feedback is not formed, resulting in a disconnect between design parameters and requirement indicators.

[0004] Model-Based Systems Engineering (MBSE) application modeling method supports all requirements, design, analysis, verification and validation work involved in the design, analysis and optimization process of the entire project from the conceptual design stage of systems engineering, and the subsequent engineering life cycle process. Therefore, the application of MBSE to the nuclear equipment design evaluation optimization process realizes good cooperation between each subsystem, equipment and component research process, and ensures the quality of the whole system by using the closed loop method of requirements-design-evaluation-verification. A good MBSE ideological framework improves the efficiency of complex systems engineering analysis, while ensuring the uniformity and traceability of data information of various related disciplines.

[0005] However, currently, there is a lack of application methods for MBSE in nuclear equipment design evaluation research, and the practice of model-based nuclear system performance evaluation has not been fully supported as a method to demonstrate the practical application of MBSE. In addition, in the face of complex nuclear system engineering involving multiple disciplines and specialties, the concept of MBSE system engineering is also in urgent need of proposals for coupling collaboration technology between currently existing simulation models.

[0006] Therefore, proposing an effective method for applying model-based system engineering to nuclear equipment evaluation simulation is a fundamental problem that those skilled in the art need to solve urgently in order to improve design and development. Summary of the Invention [Problem to be solved by the invention]

[0007] This application proposes a model-based nuclear equipment evaluation simulation method and system, which effectively integrates the concept of model-based system engineering with nuclear equipment evaluation simulation technology, opens up a closed loop of nuclear equipment design and simulation of "requirements-design-evaluation-verification", improves research efficiency, and ensures the uniformity and traceability of data information between each system equipment and discipline. [Means for solving the problem]

[0008] To achieve the above objectives, the present application provides the following solutions:

[0009] A model-based simulation method for evaluating nuclear equipment. S1: Analyze the top-level requirements of the nuclear equipment based on the application scenario and task profile, construct a requirements model, and obtain a downward output of the requirements model based on the requirements model; S2: Benchmark the downward output of the requirements model to form a function mapping of the nuclear equipment, and complete the construction of a function model and the output of data information according to the function mapping of the nuclear equipment and the specific functions that each subsystem, equipment and part of the top-level requirements of the nuclear equipment should perform; S3: Integrate port information between the requirement model and the function model, upstream and downstream elements, and the data information to be transferred, and build a logical architecture model based on the requirement allocation of the requirement model, the specific situation of the functional decomposition of the function model, and the configuration of the nuclear power equipment; S4: Construct a nuclear equipment evaluation simulation model based on the design plan, operating principle, and parameter settings and topology connections completed through the evaluation simulation of the nuclear equipment; S5: Based on the nuclear equipment evaluation simulation model, simulate and analyze the operating characteristics of each of the subsystems, equipment and parts to construct a function evaluation model; S6: Based on the functional evaluation model and the overall performance evaluation simulation verification for the nuclear equipment, a comprehensive performance evaluation model is constructed; S7: Construct a data information communication model, and realize information interaction between the requirements model in S1, the function model in S2, the logical architecture model in S3 and the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5, and the comprehensive performance evaluation model in S6, to complete the model-based nuclear equipment evaluation simulation.

[0010] Preferably, the requirements model, the functional model and the logical architecture model are graphically represented in the modelling language SysML.

[0011] Preferably, the information interaction in S7 includes: a point-by-point mapping between the requirement model in S1, the function model in S2, the logical architecture model in S3 and the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5 and the comprehensive performance evaluation model in S6, and an evaluation argument of the comprehensive performance index; The evaluation argument of the comprehensive performance index includes function evaluation feedback and performance evaluation feedback.

[0012] Preferably, the data information communication model in S7 realizes model conversion and data transfer between the requirement model in S1, the function model in S2, the logical architecture model in S3, the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5 and the overall performance evaluation model in S6 based on the XMI standard, the AP233 standard exchange protocol and the FMI interface standard.

[0013] Preferably, the model-based nuclear equipment evaluation simulation method further includes constructing a model library, and the model library is used to encapsulate the requirement model at S1, the function model at S2, the logical architecture model at S3, the nuclear equipment evaluation simulation model at S4, the function evaluation model at S5, the overall performance evaluation model at S6, and the data information communication model at S7.

[0014] The model-based nuclear equipment evaluation simulation system is The device includes a top-level requirement module, a function realization module, a logical architecture construction module, an evaluation simulation setting module, a function evaluation module, a comprehensive performance evaluation module, and a data information communication module; The equipment top-level requirement module is used to perform a top-level requirement analysis of the nuclear equipment according to an application scene and a task profile of the nuclear equipment, build a requirement model, and obtain a downward output of the requirement model according to the requirement model; The function realization module is used to benchmark the downward output of the requirement model, form a function mapping of the nuclear equipment, and complete the construction of a function model and the output of data information according to the function mapping of the nuclear equipment and the specific functions to be performed by each subsystem, equipment and part of the top-level requirements of the nuclear equipment; The logical architecture construction module is used to integrate port information between the requirement model and the function model, upstream and downstream elements, and the data information to be transferred, and to construct a logical architecture model based on the requirement distribution of the requirement model, the specific situation of the function decomposition of the function model, and the configuration of the nuclear power equipment; The evaluation simulation setting module is used to build a nuclear equipment evaluation simulation model based on the design plan, working principle, and parameter setting and topology connection completed through the evaluation simulation of the nuclear equipment; The function evaluation module is used to simulate and analyze the operating characteristics of each of the subsystems, equipment, and components based on the nuclear equipment evaluation simulation model, and to construct a function evaluation model; The comprehensive performance evaluation module is used to construct a comprehensive performance evaluation model based on the function evaluation model and a comprehensive performance evaluation simulation demonstration for the nuclear equipment; The data information communication module is used to construct a data information communication model, realize information interaction between the equipment top-level requirements module, the function realization module, the logical architecture construction module and the evaluation simulation setting module, the function evaluation module, and the comprehensive performance evaluation module, and complete a model-based nuclear equipment evaluation simulation system.

[0015] Preferably, the information interaction in the data information communication module includes: the device top-level requirement module, the function realization module, the logical architecture construction module, the evaluation simulation setting module, the point-by-point mapping between the function evaluation module and the comprehensive performance evaluation module, and the evaluation and argumentation of the comprehensive performance index; The evaluation argument of the comprehensive performance index includes function evaluation feedback and performance evaluation feedback.

[0016] Preferably, the device top-level requirement module, the function realization module and the logical architecture construction module are graphically represented by a modeling language, SysML.

[0017] Preferably, the data information communication module realizes model conversion and data transfer between the device top-level requirement module, the function realization module, the logical architecture construction module and the evaluation simulation setting module, the function evaluation module, and the comprehensive performance evaluation module based on the XMI standard, the AP233 standard exchange protocol, and the FMI interface standard.

[0018] Preferably, the model-based nuclear equipment evaluation simulation system further includes a model library module, which is used to construct a model library and encapsulate the equipment top-level requirement module, the function realization module, the logical architecture construction module, the evaluation simulation setting module, the function evaluation module, the overall performance evaluation module, and the data information communication module. Effect of the Invention

[0019] The beneficial effect of this application is to break through the traditional evaluation and analysis methods based on document formats, realize the effective integration of model-based system engineering concepts and nuclear equipment evaluation simulation technology, and fill the gaps in the current methods of MBSE in the field of nuclear engineering simulation.

[0020] This system can definitely improve the efficiency of research and development of nuclear equipment, ensure the completeness, systematicity, relevance and traceability of data and information in the design and evaluation process, and open up a closed-loop approach of "requirements-design-evaluation-verification". This system has a wide popularization space and use value. [Brief description of the drawings]

[0021] In order to more clearly explain the technical solutions of the present application, the following briefly introduces the accompanying drawings used in the embodiments. However, the accompanying drawings in the following description are only some embodiments of the present application, and it is obvious to those ordinary skilled in the art that they can obtain other accompanying drawings according to these drawings without paying creative efforts. [Figure 1] 1 is a flowchart of a model-based nuclear power equipment evaluation simulation method according to a first embodiment of the present invention. [Diagram 2] FIG. 11 is a schematic diagram of module connections in a model-based nuclear equipment evaluation simulation system according to a second embodiment of the present invention. [Diagram 3]FIG. 11 is a schematic diagram of a part of a device top-level requirement module in embodiment 2 of the present invention. [Figure 4] FIG. 11 is a schematic diagram of a part of a functional module according to a second embodiment of the present invention. [Diagram 5] FIG. 11 is a schematic diagram of a part of a logical architecture module in embodiment 2 of the present invention. [Figure 6] FIG. 11 is a schematic diagram of a part of a device top-level requirement module, a function module and a logical architecture module in embodiment 2 of the present invention. [Figure 7] FIG. 11 is a schematic diagram of a part of parameter transfer and processing in embodiment 2 of the present invention. [Figure 8] FIG. 11 is a schematic diagram of the data information transfer relationship of the standardized data information communication module in embodiment 2 of the present invention; [Figure 9] FIG. 11 is a schematic diagram showing a specific connection of modules in the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, but it is clear that the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more clearly comprehensible, the present application will be described in further detail in connection with the accompanying drawings and specific embodiments.

[0024] Embodiment 1: Model-based nuclear equipment evaluation simulation method

[0025] As shown in FIG. 1, a first embodiment of the present invention discloses a model-based simulation method for evaluating nuclear equipment, including the following steps.

[0026] Step 1: Based on relevant policies and strategic developments, develop the top-level requirements analysis and modeling representation of the nuclear equipment, focusing on the application scenario and typical task profile of the research subject, build a requirements model, and realize the downward output of the requirements model; Step 2: Benchmark the downward output of the requirements model, form a function mapping of the nuclear equipment, and complete the construction of the function model and the output of data information based on the function mapping of the nuclear equipment, and the specific functions that each subsystem, equipment and part of the top-level requirements of the nuclear equipment should perform; Step 3: Integrate the port information between the requirement model and the function model, the upstream and downstream elements, and the data information to be transferred, and build a logical architecture model based on the requirement allocation of the requirement model, the specific situation of the function decomposition of the function model, and the configuration of the nuclear power equipment; Step 4: Based on the design plan, working principle, and parameter settings and topology connections completed through the evaluation simulation, a nuclear equipment evaluation simulation model is constructed; Step 5: simulating and analyzing the operating characteristics of each of the subsystems, equipment and components based on the nuclear equipment evaluation simulation model, and constructing a function evaluation model; Step 6: Based on the functional evaluation model and the overall performance evaluation simulation verification for the nuclear equipment, a comprehensive performance evaluation model is constructed; Step 7: Using the standardized data information communication module, information interaction and data analysis are realized between the construction process of the requirements model, function model and logical architecture model, which are the comprehensive performance indicators system model of the nuclear equipment in steps 1 to 3, and the nuclear equipment simulation model and the evaluation calculation results, which are the nuclear equipment evaluation simulation model, function evaluation model and comprehensive performance evaluation model, in the nuclear equipment simulation model in steps 4 to 6, thereby realizing the one-by-one mapping of the requirements, functions, architecture and evaluation simulation model in the indicator system model and the evaluation and verification of the comprehensive performance indicators, and completing the closed-loop research route of "requirements-design-evaluation-verification" of the model-based nuclear equipment evaluation simulation method.

[0027] The method also builds a model library to encapsulate the requirements model, the functional model, the logical architecture model, the nuclear equipment evaluation simulation model, the functional evaluation model, the overall performance evaluation model, and the data information communication model.

[0028] Embodiment 2: Model-based nuclear equipment evaluation simulation system

[0029] As shown in FIG. 2, the model-based nuclear equipment evaluation simulation system includes an equipment top-level requirement module, a function realization module, a logical architecture construction module, an evaluation simulation setting module, a function evaluation module, a comprehensive performance evaluation module and a data information communication module.

[0030] The equipment top-level requirements module is used to perform a top-level requirements analysis of the nuclear equipment according to the application scene and task profile of the nuclear equipment, build a requirements model, and obtain a downward output of the requirements model according to the requirements model; The function realization module is used to form the specific functional action content to be performed by each subsystem, equipment and part according to the function mapping of the nuclear equipment and the top-level requirements of the nuclear equipment based on the data information of the downward output of the requirements model, to construct a function model and obtain data information; The logical architecture construction module is used to integrate the port information, the upstream and downstream elements, and the data information to be transferred between the requirement model and the function model, and to construct a logical architecture model based on the requirement allocation of the requirement model, the specific situation of the function decomposition of the function model, and the configuration of the nuclear equipment, so as to obtain a modeling expression of the comprehensive performance index system of the nuclear equipment; The evaluation simulation setting module is used to build a nuclear equipment evaluation simulation model based on the design proposal, working principle, and parameter setting and topology connection completed through the evaluation simulation of the nuclear equipment; The function evaluation module is used to simulate and analyze the operating characteristics of each subsystem, equipment and component based on the nuclear equipment evaluation simulation model, build a function evaluation model, and obtain the evaluation of the function realization effect; The comprehensive performance evaluation module is used to construct a comprehensive performance evaluation model based on the functional evaluation model and the comprehensive performance evaluation simulation demonstration for nuclear equipment, and to obtain support for the top-level requirement accessibility demonstration. The data information communication module is used to construct a data information communication model, realize the information interaction between the equipment top-level requirements module, the function realization module, the logical architecture construction module and the evaluation simulation setting module, the function evaluation module, and the comprehensive performance evaluation module, and complete the model-based nuclear equipment evaluation simulation system.

[0031] The system also includes a model library module that is used to build a model library and encapsulate the device top-level requirements module, the function realization module, the logical architecture construction module, the evaluation simulation setting module, the function evaluation module, the overall performance evaluation module, and the data information communication module.

[0032] For nuclear offshore floating platforms, the model-based nuclear equipment evaluation simulation system disclosed in this invention will be used to realize a closed-loop research flow of "requirements-design-evaluation-verification."

[0033] In a specific embodiment 2, as shown in FIG. 2 , the equipment top-level requirement module is graphically represented by the standardized system modeling language SysML, and the top-level performance requirements of the nuclear offshore floating platform can be hierarchically organized based on policy standards, user requirements, and expert experience.

[0034] Specifically, as shown in Figure 3, the top-level performance requirements of the nuclear offshore floating platform include, but are not limited to, performance requirements, maneuverability requirements, environmental adaptability requirements, security requirements, structural requirements, material requirements, reliability requirements, operability and maintainability requirements, equipment monitoring requirements, etc. Among these, taking the environmental adaptability requirement as an example, it also includes typical marine motion requirements, typical marine environment requirements, and platform application requirements. In addition, each sub-requirement can include elevation motion requirements, swing motion requirements, tilt motion requirements, seawater temperature requirements, atmospheric temperature requirements, salt oil and mold requirements, weight requirements, size requirements, and center of gravity requirements.

[0035] As shown in Figure 4, the function realization module is graphically represented in the standardized system modeling language SysML, the data information sent by the equipment top-level requirement module is benchmarked, the function mapping of the nuclear offshore floating platform is completed, and the specific functional content to be implemented by each subsystem, equipment, component, etc. based on the top-level requirements can be formed.

[0036] As shown in Figure 4, the functional implementation modules of the nuclear offshore floating platform can be divided into, but are not limited to, the reactor system function, the primary loop system function, the nuclear auxiliary system function, the secondary loop system function, the power system function, the control and protection system function, etc. Among them, taking the reactor system function as an example, it can be further decomposed into functions such as the generation of a predetermined design heat, radioactive containment, coolant injection, and reactive self-regulation. Taking the primary loop system as an example, it can also be further decomposed into functions such as the extraction of normal heat and decay heat of the core, the coolant pressure boundary, pressure stabilization, emergency cooling, and the discharge of non-condensable gases.

[0037] The logical architecture construction module can not only realize the construction of a logical architecture model based on the structural configuration of the system under study, as shown in Figure 5, but also build a logical architecture between the device top-level requirements module and the function realization module, as shown in Figure 6, to realize requirement transmission and function mapping.

[0038] Specifically, as shown in Figure 5, the standardized system modeling language SysML can be used to build a logical architecture construction module for the nuclear offshore floating platform system configuration. Among them, the nuclear offshore floating platform mainly consists of the reactor system function, the primary loop system function, the nuclear auxiliary system function, the secondary loop system function, the power system function, the control and protection system function, etc. The secondary loop system is further divided into the main steam system, the auxiliary steam system, the steam shortage system, the condensate feed water system, the cooling water system, the lubricating oil system, and the drainage system. The main steam system includes the main steam pipeline, the main steam turbine unit, the steam water separator and related valves, etc. In addition, the parameters can be preset for each system, equipment and part in the architecture model, and the parameter transfer and mapping to the simulation model of the evaluation simulation setting module can be realized by using the data transfer model.

[0039] Specifically, the logical architecture between the equipment top-level requirements module and the function realization module of the nuclear offshore floating platform system can be modeled and expressed by the standardized system modeling language SysML, the mapping of requirements to functions can be realized, the matching tracking of the function model can be realized based on the adjustment of the requirements model, and index traceability can be achieved.

[0040] Specifically, as shown in Figure 6, taking the seawater temperature and atmospheric temperature requirements in the marine environment requirements as an example, because they affect the functions of the non-active residual heat removal system and the cooling water system of the nuclear offshore floating platform, the above two requirements are respectively mapped to the shutdown heat export, core emergency cooling and cooler cooling water supply functions. When the requirements of seawater temperature or atmospheric temperature change, under the guidance of the logical architecture model, the shutdown heat export, core emergency cooling and cooler cooling water supply functions complete the matching adjustment to achieve the matching of requirements and functions.

[0041] Specifically, through the solution of conservation equations, graph theory, data cards and other methods can be used to complete the parameter input and model topology construction of the fluid network-based nuclear offshore floating platform evaluation simulation setting module.

[0042] Specifically, as shown in Figure 7, information interaction and data analysis between the nuclear offshore floating platform comprehensive performance index system model and the evaluation simulation model of the nuclear offshore floating platform is realized through the standardized data information communication module, and the one-by-one mapping of the requirements, functions and architecture in the index system model to the evaluation simulation model and the evaluation and verification of the comprehensive performance indexes are realized, and the closed-loop research route of "requirements-design-evaluation-verification" of the model-based nuclear equipment evaluation simulation system of the present invention is completed.

[0043] Specifically, the data transfer model in the data information communication module can realize model conversion and data transfer between the index system model (requirements model, function model and logical architecture model) and the evaluation simulation model (nuclear equipment evaluation simulation model, function evaluation model and comprehensive performance evaluation model) based on the XMI standard, AP233 standard exchange protocol, FMI interface standard, etc.

[0044] Specifically, the data processing model in the data information communication module includes analysis models based on methods such as numerical logic judgment, artificial neural network, fuzzy comprehensive evaluation, and expert fuzzy scoring weighting, and can realize closed-loop processing of the evaluation simulation calculation results for the comprehensive performance index system.

[0045] Specifically, as shown in FIG. 8, all models involved in the model-based nuclear equipment evaluation simulation system of the present invention are encapsulated in a model library module.

[0046] Specifically, as shown in Fig. 8, the indicator system model in the model library module includes, but is not limited to, the equipment top-level requirements model, the function model, the logical architecture model, etc. Through the above models, the requirements analysis, function decomposition, and architecture construction of the nuclear offshore floating platform can be completed.

[0047] Specifically, as shown in FIG. 8, the evaluation simulation models in the model library module include, but are not limited to, the reactor model, the primary loop system model, the nuclear auxiliary system model, the secondary loop system model, the power system model, the control and protection system model, etc., and the above modules can complete the construction of the evaluation simulation model of the nuclear offshore floating platform.

[0048] Specifically, as shown in Figure 8, the data information communication model in the model library module includes, but is not limited to, a data transmission model, a data processing model, etc., and the above models can be used to complete the information transmission and data processing between the indicator system model of the nuclear offshore floating platform and its evaluation simulation model. The specific connection of the modules in this embodiment is shown in Figure 9.

[0049] The above-described embodiments are merely illustrative of preferred aspects of the present application, and do not limit the scope of the present application. Various modifications and improvements made by those skilled in the art in the field of the technical solutions of the present application without departing from the design spirit of the present application shall belong to the scope of protection determined by the claims of the present application.

Claims

1. S1: According to the application scenario and task profile of the nuclear equipment, analyze the top-level requirements of the nuclear equipment, construct a requirements model, and obtain a downward output of the requirements model according to the requirements model; S2: benchmark the downward output of the requirements model to form a function mapping of the nuclear equipment; and complete the construction of a function model and the output of data information according to the function mapping of the nuclear equipment and the specific functions to be performed by each subsystem, equipment and component of the top-level requirements of the nuclear equipment; S3: Integrate port information between the requirement model and the function model, upstream and downstream elements, and the data information to be transferred, and build a logical architecture model based on the requirement allocation of the requirement model, the specific situation of the functional decomposition of the function model, and the configuration of the nuclear power equipment; S4: constructing a nuclear equipment evaluation simulation model based on the design plan, operating principle, and parameter settings and topology connections completed through the evaluation simulation of the nuclear equipment; S5: Based on the nuclear equipment evaluation simulation model, simulate and analyze the operating characteristics of each subsystem, equipment and component to construct a function evaluation model; S6: Constructing a comprehensive performance evaluation model based on the functional evaluation model and the comprehensive performance evaluation simulation verification for the nuclear equipment; S7: Construct a data information communication model, and realize information interaction between the requirements model in S1, the function model in S2, the logical architecture model in S3, and the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5, and the comprehensive performance evaluation model in S6, thereby completing the model-based nuclear equipment evaluation simulation.

2. 2. The model-based simulation method for evaluating nuclear equipment according to claim 1, wherein the requirement model, the function model, and the logical architecture model are graphically expressed in a modeling language SysML.

3. The information interaction in S7 includes: a point-by-point mapping between the requirement model in S1, the function model in S2, the logical architecture model in S3 and the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5 and the comprehensive performance evaluation model in S6, and an evaluation argument of the comprehensive performance index; 2. The model-based nuclear equipment evaluation simulation method according to claim 1, wherein the evaluation and argument of the comprehensive performance index includes a function evaluation feedback and a performance evaluation feedback.

4. 2. The model-based nuclear equipment evaluation simulation method of claim 1, wherein the data information communication model in S7 is based on the XMI standard, the AP233 standard exchange protocol and the FMI interface standard to realize model conversion and data transfer between the requirement model in S1, the function model in S2, the logical architecture model in S3, the nuclear equipment evaluation simulation model in S4, the function evaluation model in S5 and the overall performance evaluation model in S6.

5. 2. The model-based nuclear equipment evaluation simulation method of claim 1, further comprising: constructing a model library, the model library being used to encapsulate the requirement model at S1, the function model at S2, the logical architecture model at S3, the nuclear equipment evaluation simulation model at S4, the function evaluation model at S5, the overall performance evaluation model at S6, and the data information communication model at S7.

6. The device includes a top-level requirement module, a function realization module, a logical architecture construction module, an evaluation simulation setting module, a function evaluation module, a comprehensive performance evaluation module, and a data information communication module; The equipment top-level requirement module is used to perform a top-level requirement analysis of the nuclear equipment according to an application scene and a task profile of the nuclear equipment, build a requirement model, and obtain a downward output of the requirement model according to the requirement model; The function realization module is used to benchmark the downward output of the requirement model, form a function mapping of the nuclear equipment, and complete the construction of a function model and the output of data information according to the function mapping of the nuclear equipment and the specific functions to be performed by each subsystem, equipment and part of the top-level requirements of the nuclear equipment; The logical architecture construction module is used to integrate port information between the requirement model and the function model, upstream and downstream elements, and the data information to be transferred, and to construct a logical architecture model based on the requirement distribution of the requirement model, the specific situation of the function decomposition of the function model, and the configuration of the nuclear power equipment; The evaluation simulation setting module is used to build a nuclear equipment evaluation simulation model based on the design plan, working principle, and parameter setting and topology connection completed through the evaluation simulation of the nuclear equipment; The function evaluation module is used to simulate and analyze the operating characteristics of each of the subsystems, equipment, and components based on the nuclear equipment evaluation simulation model, and to construct a function evaluation model; The comprehensive performance evaluation module is used to construct a comprehensive performance evaluation model based on the function evaluation model and a comprehensive performance evaluation simulation demonstration for the nuclear equipment; The data information communication module is used to construct a data information communication model, and realize information interaction between the equipment top-level requirements module, the function realization module, the logical architecture construction module and the evaluation simulation setting module, the function evaluation module, and the comprehensive performance evaluation module, to complete a model-based nuclear equipment evaluation simulation.

7. The information interaction in the data information communication module includes: the device top-level requirement module, the function realization module, the logical architecture construction module, the evaluation simulation setting module, the point-by-point mapping between the function evaluation module and the comprehensive performance evaluation module, and the evaluation and argumentation of the comprehensive performance index; 7. The model-based nuclear equipment evaluation simulation system according to claim 6, wherein the evaluation and argument of the comprehensive performance index includes a function evaluation feedback and a performance evaluation feedback.

8. 7. The model-based nuclear equipment evaluation simulation system according to claim 6, wherein the equipment top-level requirement module, the function realization module, and the logical architecture construction module are graphically expressed by a modeling language SysML.

9. 7. The model-based nuclear equipment evaluation simulation system according to claim 6, wherein the data information communication module realizes model conversion and data transfer between the equipment top-level requirement module, the function realization module, the logical architecture construction module and the evaluation simulation setting module, the function evaluation module, and the comprehensive performance evaluation module based on the XMI standard, the AP233 standard exchange protocol, and the FMI interface standard.

10. 7. The model-based nuclear equipment evaluation simulation system according to claim 6, further comprising a model library module, the model library module being used to construct a model library and encapsulate the equipment top-level requirement module, the function realization module, the logical architecture construction module, the evaluation simulation setting module, the function evaluation module, the overall performance evaluation module, and the data information communication module.

Images