Research And Development Of Graphical Modeling And Simulation Software For Nuclear Power System

Nuclear energy is an important energy source that effectively solves the energy crisis and meets the needs of military,industrial,and living power.The development of nuclear power system-related technologies is a major direction for China to move toward industrial powers and military powers.Safety and reliability are the top priorities in the development of nuclear power system related technologies.With the continuous improvement of computer computing power and the continuous development of modeling and simulation technology,graphical modeling and simulation software will be more involved in the design of nuclear power systems with its intuitive graphical interface and rapid modeling capabilities.During the construction process,the work efficiency of engineers and technicians is greatly improved,and the safe and stable operation of the nuclear power system is better ensured.This study focuses on the development of graphical modeling and simulation software for nuclear power systems.Firstly,the functional composition and related characteristics of graphical modeling and simulation software are studied.Based on the development requirements of nuclear power system modeling and simulation,the technical solutions and development environment are selected,the overall development plan of the software is designed.Then the research and analysis of the nuclear power system thermal equipment system control and logic system are carried out.According to the modularization and parameterization ideas,these complex systems are decomposed into independent simple function modules,and the actual working process of these functional modules is analyzed.The abstract mathematical model of each functional module is derived,and the mathematical model of the fluid network and the calculation method of water and water vapor properties are studied in detail.Then according to the overall design of the software,the user interface of the software was developed by using the technical scheme of Vue + Electron,and the user interface component tree structure was given.The function of software simulation calculation is realized by the joint programming of Java Script + Python and its scientific computing library.The data organization form of the project file is designed by JSON format,and the graphic of the built-in primitive module is drawn by SVG format,try to develop a cross-platform graphical modeling simulation software.Last but not least,the graphical modeling and simulation software was thoroughly tested.The test results show that the model building simulation software and the simulation calculation function are correct and stable.In general,the main purpose of this project is to build on the research and development work,accumulate relevant experience,and take the lead in digital modeling and simulation calculation of nuclear power systems.Through the pilot research,the actual autonomous nuclear power system simulation development project is prepared for the substantive design and verification of technology,platform,software and talents.