本文利用低杂波电流驱动(LHCD)的理论和实验结果,讨论了电流驱动效率和电流分布控制与等离子体参量及入射波谱的关系,强调了波传播在确定功率沉积分布区域中的作用,并讨论了控制电流密度分布的方法,探索在HL-2A装置上实现中心负磁剪切位形的可能性。 早在80年代,实验和理论研究就奠定了低杂波电流驱动(LHCD)的物理基础。在理论上,利用射线追踪技术和Fokker-Planck方程的不 Based on the theoretical and experimental results of low clutter current driving (LHCD), the relationship between current driving efficiency and current distribution control and plasma parameters and incident spectra is discussed in this paper. The role of wave propagation in the determination of power deposition distribution is emphasized The method of controlling the current density distribution is discussed and the possibility of achieving the center negative magnetic shear shape on the HL-2A device is explored. As early as the 1980s, experimental and theoretical studies laid the physical foundation for low clutter current drive (LHCD). In theory, the use of ray tracing techniques and the Fokker-Planck equation does not