随着国家生产力的不断提高，能源需求的急剧上升与环境保护的高压政策形成了一个备受关注的矛盾点，而核能作为一种新型清洁能源，开始不断受到全球各国的关注。我国在全球小型核能系统的研发中仍处于奋力追赶的角色，尤其是核安全级设备的研制面临着严峻的攻坚战，而热态考核试验作为核安全级设备研制过程中的重要一环，往往具有试验环境要求高、试验周期长的特点，为了解决这一难点，本项目完成了一套高温高压试验台架的建设。本课题以此为依托，设计并实现了一套现代化的计算机化综合控制系统。本文首先对高温高压试验台架的组成进行了分析，对系统设备的功能以及运行流程进行深入探索，提出了综合控制系统基于现场级、自动化级以及显示操作级的三级设计结构，并通过梳理系统控制需求完成了各设备控制、保护逻辑的分析工作。针对现有控制器缺少饱和压力计算模块的问题，本文通过MATLAB仿真的方式，采用遗传算法对IAPWS-IF97饱和线的压力计算公式进行了多段拟合。考虑系统抗外部高频扰动的需求，本文通过采用不完全微分以及变速积分对PID控制器进行了优化设计，同时探索了最速跟踪微分器在求取过程参数变化速率方面的应用。本文还根据综合控制系统的控制需求与各被控设备的电制、功率及功能要求，完成了一次仪表选型、设备多线原理图设计、接地系统设计等内容，并以此为基础，结合高温高压试验台架的运行流程分析，分别完成了下位机控制器控制算法的编程实现以及上位机监控系统的开发。最后，在完成各设备的生产制造后，本系统与试验台架一同开展了单机试验与联调试验，对系统的控制性能进行了验证。本课题通过对高温高压试验台架综合控制系统的设计，实现了其全运行流程的测量、控制、保护、监视任务，兼具了安全性、可靠性与先进性，保证了长周期下基于高温高压试验台架各项热态考核试验的顺利进行。

With the continuous improvement of national productivity, the sharp rise in energy demand and the high-pressure policy of environmental protection have formed a contradiction that has attracted much attention. As a new type of clean energy, nuclear energy has begun to attract the attention of countries all over the world. China is still playing a catch-up role in the research of small nuclear energy systems, especially the development of nuclear safety equipment is facing a severe battle. As an important part of the development process of nuclear safety equipment, thermal assessment test often has the characteristics of strict environmental requirements and long test cycle. In order to solve this difficulty, the project has completed the construction of a set of high temperature and high pressure test bench. Based on this, this paper designs and realizes a set of modern computerized integrated control system.Firstly, this paper analyzes the composition of the high temperature and high pressure test bench. Then the function and operation process of the system equipment are deeply explored. At the same time, a three-level structure of the control system based on field level, automation level and display operation level is proposed. By sorting out the system control requirements, the analysis work of each equipment control and protection logic has been completed. Aiming at the problem that the existing controller lacks the saturation pressure calculation module, this paper uses the genetic algorithm to perform multi-segment fitting to the pressure calculation formula of the IAPWS-IF97 saturation line by means of MATLAB simulation. Considering the requirement of the system to resist external high-frequency disturbance, this paper optimizes the design of the PID controller by using incomplete differentiation and variable speed integral, and also explores the application of the fastest tracking differentiator in calculating the change rate of process parameters. According to the control requirements of the control system , the voltage level, rated power and functional requirements of each controlled equipment, this paper also completes the selection of primary instruments, the design of the multi-wire schematic diagram of the equipment, and the design of the grounding system. And based on this, combined with the analysis of the operation process of the high temperature and high pressure test bench, this paper completes the programming of the control algorithm of the lower computer controller and the development of the monitoring system in the upper computer. Finally, after the production and manufacturing of each equipment, the single machine test and joint commissioning test of the control system are carried out together with the test bench to verify the control performance of the system.The design of the integrated control system has realized the task of measuring, controlling, protecting and monitoring the entire operation process of the high temperature and high pressure test bench.Through the design of the control system, the tasks of measuring, controlling, protecting and monitoring the entire operation process of the high temperature and high pressure test bench. are realized. It has the advantages of safety, reliability and progressiveness. As well it ensures that the various thermal assessment tests based on the high temperature and high pressure test bench under the long period can be carried out successfully.