【作者】 阎尖兵；

【导师】 舒炎泰；

【作者基本信息】 天津大学 ， 计算机应用技术， 2003， 硕士

【摘要】 中科院等离子体物理研究所正在兴建的HT-7U是世界上最大的超导托卡马克装置之一,它的目标是实现长脉冲稳态运行,要实现这个目标,必须科学、合理的设计和实现HT-7U的控制及数据采集系统。HT-7U控制及数据采集系统是一个庞大的分布式系统,它包含有中央定时系统、安全巡检系统及各诊断控制系统,其中一个关键的子控制系统便是等离子体位形实时反馈控制系统。本文从可行性和科学实现的角度,借鉴国外同类装置的设计思想,结合计算机应用领域的先进技术,特别是基于Linux操作系统的高性能计算集群技术,提出了HT-7U等离子体位形实时反馈控制系统的设计方案,此方案涉及到HT-7U等离子体位形实时反馈控制系统的控制模型、控制算法、硬件结构和工作流程。在与国外的设计进行对比之后介绍了HT-7U等离子体位形实时反馈控制系统的特点。实时数据采集、实时平衡反演计算及控制器的设计是实现HT-7U等离子体位形实时反馈控制系统的三个关键技术,本文介绍了基于实时操作系统iRMX的实时采集系统,并提出了将它应用到HT-7U等离子体位形实时反馈控制系统中的改进方案。本文介绍了将EFIT(平衡反演程序)从Sun Solaris上的Fortran源码移植到Linux下由C语言实现,以及用C函数替换了部分Fortran子程序后进行的一系列测试工作,同时提出了将EFIT优化为实时核心计算程序的工作方向。本文还简单的介绍了一种新的控制器设计方法——基于多变量模型的多路输入多路输出(MIMO)算法。这些工作对HT-7U等离子体位形实时反馈控制系统的实现打下了坚实的基础。更多还原

【Abstract】 One of the largest Superconducting Tokamak fusion device in the world-- HT-7U is under construction in the Institute of Plasma Physics, Academia of Sinica, which aims at extremely long pulse and steady-state operation. To achieve this aim, the control and data acquisition system in HT-7U should be scientifically and reasonably designed and implemented. The control and data acquisition system in HT-7U is a large distributed system, which contains a main timing system, a main safety-protective system, other control subsystems and diagnostic systems. Among which, the real-time control system of plasma shape and position (RTCSPSP) is one of the most important control sub-systems. In this paper, we use the ideas of the foreign congeneric devices’ design for reference, combine the advanced technology in the computer application domain, and propose the design scheme of the RTCSPSP in HT-7U, which includes the control model, the control arithmetic, the hardware structure and the work flow of the RTCSPSP in HT-7U. After comparing it with those abroad, we discuss the characteristic of the RTCSPSP in HT-7U.The three key technologies of the RTCSPSP in HT-7U are real-time data acquisition, real-time equilibrium fit calculation and the design of the controller. We describe the development of the iRMX-based real-time data acquisition and the continued work on applying it to the RTCSPSP in HT-7U. Then we introduce the transplanting work of EFIT(Equilibrium Fit program), which includes the transplantation from Sun Solaris(written in Fortran) to Linux(written in C) and some test. Future work includes turning EFIT code into real-time control program. We also briefly present a new controller design method—multivariable model-based multiple input multiple output (MIMO) arithmetic. All these work establish a stable base for the implementation of the RTCSPSP in HT-7U.更多还原