RMP(Resonant Magnetic Perturbation,共振磁场扰动)是托卡马克中用于磁流体力学不稳定性主动控制的基本手段之一,被广泛的应用于国际上各大主流装置。为了在EAST(Experimental Advanced Superconducting Tokamak)装置上开展相关的物理...RMP(Resonant Magnetic Perturbation,共振磁场扰动)是托卡马克中用于磁流体力学不稳定性主动控制的基本手段之一,被广泛的应用于国际上各大主流装置。为了在EAST(Experimental Advanced Superconducting Tokamak)装置上开展相关的物理实验,在真空室内部设计制造安装了一套多功能的磁扰动线圈,在EAST PCS(Plasma Control System)上利用PID控制方法开发了RMP线圈电流控制算法,算法实现了对RMP线圈电流的开环与闭环控制。利用EAST PCS集成的simserver工具对算法进行了模拟运行测试,验证了算法的正确性。RMP线圈电流控制算法在2014年的EAST实验中得到了使用,实现了对RMP线圈电流的有效控制,为进一步的等离子物理研究奠定了基础。展开更多
Accurate detection of a magnetic island in real time is one of the important issues for the tearing mode（TM） and neoclassical tearing mode（NTM） control.This paper presents a real-time detection system for the magn...Accurate detection of a magnetic island in real time is one of the important issues for the tearing mode（TM） and neoclassical tearing mode（NTM） control.This paper presents a real-time detection system for the magnetic island of NTM control in the EAST Plasma Control System（PCS）.Diagnosis is based on magnetic periodic perturbation and electron temperature fluctuation caused by the magnetic island.Therefore,a Mirnov measurement has been selected to calculate the island＇s parameters,such as island width,frequency of island rotation,and toroidal number.The electron cyclotron emission（ECE） system can detect the island position,which is calculated by two fast detection algorithms called correlation analysis and Hilbert transform.For future NTM control,real-time equilibrium reconstruction（rt-EFIT） is needed to locate the rational q-surface where the island is detected.This fast detection system is able to detect an island within 3 ms.It can be integrated into PCS to provide effective parameters of the island for NTM control by using EC resonance heating（ECRH） in the next experiment of EAST.展开更多
文摘RMP(Resonant Magnetic Perturbation,共振磁场扰动)是托卡马克中用于磁流体力学不稳定性主动控制的基本手段之一,被广泛的应用于国际上各大主流装置。为了在EAST(Experimental Advanced Superconducting Tokamak)装置上开展相关的物理实验,在真空室内部设计制造安装了一套多功能的磁扰动线圈,在EAST PCS(Plasma Control System)上利用PID控制方法开发了RMP线圈电流控制算法,算法实现了对RMP线圈电流的开环与闭环控制。利用EAST PCS集成的simserver工具对算法进行了模拟运行测试,验证了算法的正确性。RMP线圈电流控制算法在2014年的EAST实验中得到了使用,实现了对RMP线圈电流的有效控制,为进一步的等离子物理研究奠定了基础。
基金supported by the National Magnetic Confinement Fusion Science Program of China(Nos.2014GB103000,2012GB103000,and2012GB103002)National Natural Science Foundation of China(No.11205200)
文摘Accurate detection of a magnetic island in real time is one of the important issues for the tearing mode（TM） and neoclassical tearing mode（NTM） control.This paper presents a real-time detection system for the magnetic island of NTM control in the EAST Plasma Control System（PCS）.Diagnosis is based on magnetic periodic perturbation and electron temperature fluctuation caused by the magnetic island.Therefore,a Mirnov measurement has been selected to calculate the island＇s parameters,such as island width,frequency of island rotation,and toroidal number.The electron cyclotron emission（ECE） system can detect the island position,which is calculated by two fast detection algorithms called correlation analysis and Hilbert transform.For future NTM control,real-time equilibrium reconstruction（rt-EFIT） is needed to locate the rational q-surface where the island is detected.This fast detection system is able to detect an island within 3 ms.It can be integrated into PCS to provide effective parameters of the island for NTM control by using EC resonance heating（ECRH） in the next experiment of EAST.
