Design And Research Of Diagnostic And Control System For CSMC Testing Platform

Fusion energy is a kind of high-density clean energy,which is one of the effective ways to solve the future resource crisis of human beings.The magnetic confinement fusion research device is the most promising fusion research device at present.As the next generation fusion research device in China,CFETR is in progress of design task.Among them,the central solenoid model coil(CSMC)development and testing experimental technology is one of the key research and development tasks of CFETR.The purpose of CSMC testing experiments are to veryfy the performance of CSMC magnet,to develop the magnet test platform technology and to improve the quench detection technology.The CSMC test platform diagnostic control system research and development,is one of the magnet test platform technology research content,diagnostic control system engineering tasks is to control and coordinate each subsystem to complete the performance test of superconducting magnets,as well as collect the engineering and scientific research data generated in the experiment,and also provide the safety protection function of magnets.Its research prospects lies in the study of superconducting magnet monitoring test system,to provide technical support for CRAFT and CFETR after construction.After analyzing the CSMC test requirements,this paper develops the design of the test platform diagnostic control system,which includes the magnet diagnostic system for monitoring the state of magnets and data collection;a central data system for data storage and data services;a network alarm system for monitoring the alarm status of the system;and a safety interlock system for the safe operation of magnets.On account of diverse testing requirements,an elastic system architecture was developed.In the magnet diagnosis system,we package the control programs of various kinds of equipment and instruments that need to be used in the test,to get the standardized program interface.Then we use the instrument control module to call these interface.This method greatly improving the expansion performance of the system.In the central data system,EPICS Archiver Appliance and MDSplus were used to manage engineering data and scientific data,respectively.The enterprise WEB technology is applied to the development of network alarm system.We use MVC design pattern,adopt B/S architecture,and choose JavaBean to encapsulate EPICS PV.The web server and client page were developed with the JSP/Servlet technology.We use MyBatis as data persistence framework.In our efforts,web alarm system with high ability in extensibility and maintainability,and it can be deployed in any support EPICS CA system,to monitor the network PV alarm status,which greatly improving the application range of the system.The failure analysis of the magnet test platform was carried out,and the potential failure modes of the magnet test platform were analyzed by FMEA and FTA method,and the corresponding failure avoidance methods or fault detection methods were given,thus greatly reducing the failure probability of the system and improving the reliability of the system.According to the result of fault analysis,the design of the central interlocking system is carried out and the deployment test is carried out.