| 实验物理与工业控制系统平台在HL-2A主机测控系统中的应用 |
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| 引用本文： | �� �ã��� �֣��� ���� ������һ������ ������ռ�ԣ�Ԭ������ٲ����� 尣�HLA�Ŷ�. 实验物理与工业控制系统平台在HL-2A主机测控系统中的应用[J]. 核聚变与等离子体物理, 2018, 38(1): 87-92. DOI: 10.16568/j.0254-6086.201801001 |
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| 作者姓名： | �� �ã��� �֣��� ���� ������һ������ ������ռ�ԣ�Ԭ������ٲ����� 尣�HLA�Ŷ� |
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| 作者单位： | (核工业西南物理研究院，成都 610041) |
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| 摘 要： | 描述了利用实验物理与工业控制系统(EPICS)平台对HL-2A主机运行参数进行的集中测控系统开发。系统采用s7nodave设备驱动模块，实现了SoftIOC与各PLC的通讯，将各子系统的PLC集成到了EPICS控制系统中。通过对关系型数据库和应用层软件CSS中数据归档及报警等组件的扩展与配置，实现OPI层与各个子系统的实时通信。测控系统成功地将HL-2A主机参数集中在EPICS平台下运行，为下一代装置的主机集中测控系统设计打下了基础。
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| 关 键 词： | HL-2A主机 集中测控 EPICS PLC CSS |
| 收稿时间： | 2016-12-23 |
Poloidal rotation driven by turbulent residual stress in the edge of HL-2A plasmas |
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| LONG Ting,NIE Lin,KE Rui,XU Min,WU Yi-fan,GUO Dong,WANG Zhan-hui,YUAN Bo-da,GONG Shao-bo,LIU Hao,HLA-Team. Poloidal rotation driven by turbulent residual stress in the edge of HL-2A plasmas[J]. Nuclear Fusion and Plasma Physics, 2018, 38(1): 87-92. DOI: 10.16568/j.0254-6086.201801001 |
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| Authors: | LONG Ting NIE Lin KE Rui XU Min WU Yi-fan GUO Dong WANG Zhan-hui YUAN Bo-da GONG Shao-bo LIU Hao HLA-Team |
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| Affiliation: | (Southwestern Institute of Physics, Chengdu 610041) |
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| Abstract: | The first measurement of turbulent poloidal residual stress profile in the edge of tokamak plasmas is reported in this article. A specially designed reciprocating Langmuir probe array on the out mid-plane of HL-2A tokamak was used to measure turbulent momentum transport. It is observed that the residual stress is finite and opposite to diffusive stress near last closed flux surface (LCFS). Both of them are about an order of magnitude larger than Reynolds stress. These experimental results indicate that poloidal momentum sources exist at the boundary of plasma and the momentum mainly transports away with diffusion. In the region −2cmLCFS<−0.5cm, the negative radial gradient of residual stress serves as an intrinsic torque to drive poloidal rotation. |
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| Keywords: | HL-2A host Centralized control EPICS PLC CSS |
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