Recent developments in engineering design for the quasi-axisymmetric stellarator CFQS
Recent developments in engineering design for the quasi-axisymmetric stellarator CFQS
复制标题
准轴对称仿星器CFQS工程设计的最新进展
DOI：
10.1088/1741-4326/ac369a
复制
发表时间：
2021
期刊：
影响因子：
3.3
通讯作者：
Y. Wan
中科院分区：
文献类型：
--
作者：
A. Shimizu;S. Kinoshita;M. Isobe;S. Okamura;K. Ogawa;M. Nakata;Y. Yoshimura;C. Suzuki;M. Osakabe;T. Murase;S. Nakagawa;H. Tanoue;Y. Xu;H.F. Liu;H. Liu;J. Huang;X. Wang;J. Cheng;G. Xiong;C. Tang;D. Yin;Y. Wan
为了证明准轴对称仿星器的内在优势，中国核聚变科学研究所与西南交通大学合作设计了准轴对称仿星器CFQS。CFQS的主要参数如下：长半径为1 m，磁场强度为1 T，纵横比为4，环形周期数为2。磁场配置是基于CHS-qa的磁场配置设计的。在新古典理论的背景下，增强的约束性能是通过其准轴对称配置实现的。在整个径向范围内，磁阱被保留以保持磁流体动力学平衡中的有利稳定性特征。为CFQS设计了一个磁场线圈系统，该系统由16个模块线圈、12个环向场线圈和4个极向场线圈组成。支撑结构的设计可承受1 T运行下的强电磁力，为加热和诊断系统保持足够的空间。最复杂形状的模块化线圈模型由合肥科业电物理设备制造有限公司制造，有限公司检查可制造性和达到的精度。进行了热运行试验，以检查导体的温升，并确认了1 T运行的能力。在对模型线圈进行各种测试之后，实际模块化线圈和真空容器的建造已经开始。
A quasi-axisymmetric stellarator, the CFQS, has been designed as a joint project of the National Institute for Fusion Science and Southwest Jiaotong University to prove intrinsic advantages of quasi-axisymmetry. Principal parameters of the CFQS are as follows: the major radius is 1 m, the magnetic field strength is 1 T, the aspect ratio is 4, and the toroidal periodic number is 2. The magnetic field configuration is designed based on that of the CHS-qa. Enhanced confinement properties within the context of neoclassical theory are achieved by its quasi-axisymmetric configuration. In the entire radial range, the magnetic well is retained to keep favourable stability features in the magnetohydrodynamic equilibrium. A magnetic field coil system was designed for the CFQS, which consists of 16 modular coils, 12 toroidal field coils, and 4 poloidal field coils. The supporting structure is designed to withstand strong electromagnetic force under 1 T operation, maintaining enough space for heating and diagnostic systems. The mock-up modular coil with the most complicated shape was constructed by Hefei Keye Electro Physical Equipment Manufacturing Co., Ltd. to check manufacturability and the achieved accuracy. A heat-run test was performed to check the temperature rise of conductors, and the capability of 1 T operation was confirmed. After various tests for the mock-up coil, construction of actual modular coils and the vacuum vessel has begun.