【作者】 刘琳；

【导师】 谢庆国； 陈燎原；

【作者基本信息】 华中科技大学 ， 系统工程， 2008， 硕士

【摘要】 托卡马克(tokamak)核聚变研究对于开发核聚变能具有重要意义。对于现有的中国环流器二号装置(HL-2A),要想增加等离子体电流,获得高参数等离子体,必须将HL-2A装置升级改造成HL-2M装置。等离子体的位形控制是HL-2M升级改造的重要工程问题。垂直截面拉长使等离子体具有内在的垂直不稳定性,为了避免等离子体的逃逸破裂,必须控制等离子体垂直不稳定性。而要使等离子体具有先进的位形,就必须进行等离子体形状控制。本文对HL-2M控制等离子体垂直不稳定性的被动板和主动线圈进行了概念设计,对等离子体响应模型中的参数进行了数值计算,设计PID和自适应控制系统进行仿真,后者能够将垂直位移最大为5cm的等离子体控制到中平面,说明了被动板和主动线圈设计的合理性。并期望将自适应控制方法应用到HL-2A装置的垂直位移控制实验中。对托卡马克装置形状控制进行了调研,选择适用于HL-2M形状控制的等离子体响应模型(RZIP模型)和PID控制器以及H ?鲁棒控制器。主要设计了解耦的PID控制系统并进行仿真,编写了等离子体形状控制代码输入文件,计算等离子体形状响应模型。将PID控制和形状代码应用到HL-2M的控制中,为等离子体形状控制问题探索了一条道路。文章最后作了总结,并提出了对下一步工作的计划和建议。本文的研究工作对今后的HL-2M等离子体控制系统的工程设计和理论研究提供了一定的意义和作用。更多还原

【Abstract】 The research of tokamak is very important to develop the fusion power. In order toobtainbigplasma current andhighperformanceparameters, theHL-2AdeviceshouldbeupdatedtoHL-2M.The most important engineering problem for the update of HL-2M is the plasmaposition and shape control. The plasma with vertically elongated poloidal section isunstable. To avoid the plasma escaping and breaking, the vertical instability must becontrolled firstly. And it’s also necessary to control the plasma shape to get advancedshape. This paper describes the design of the passive plates and the active control coilsfor the plasma vertical instability control of HL-2M.The parameters for the plasmaresponse model are calculated.The PID and adaptive control systems are designed andsimulated, the latter one is able to control the plasma from the maximal displacement5cmtothemiddleplane,whichprovethatthedesignofthepassiveplatesandtheactivecoils is rational. The adaptive controller is also supposed to control the verticalmovement in the experiments of HL-2A. This work adopts an appropriate plasmaresponse model (RZIP), the PID and H ?robust controllers for the HL-2M shapecontrol. The decoupling PID control system is designed and simulated. The work aboutprogramming the input documents for the shape control code, calculating the plasmashape response model and designing the shape controller is valuable for the furtherresearch of HL-2M shape control. At the last of the paper, the main idea is summarizedandsomesuggestionispresent.Theworkinthis paperismeaningfulfortheresearchoftheplasmacontroltheoryandthedesignofthecontrolsystemforHL-2M.更多还原