Future tokamaks will require robust technologies for the mitigation of heat exhaust onto the plasma-facing components. As a first step towards this development, a system has been developed at DIII-D that estimates and controls in real-time the heat flux to the PFCs. Real-time estimation of the peak power flux from this model-based approach is validated with off-line infra-red measurements for various DIII-D plasma discharges. A nonlinear free-boundary simulation code (GSevolve) is used for simulating the closed loop response and for the off-line determination of the control parameters. The implementation and first experimental results of the application during the DIII-D plasma campaign are reported.

未来的托卡马克将需要强大的技术来减少热量散发到面对等离子体的组件上。作为该开发的第一步，在DIII-D开发了一个系统，该系统可以实时估算和控制流向PFC的热通量。这种基于模型的方法对峰值功率通量的实时估计已通过离线红外测量针对各种DIII-D等离子放电进行了验证。非线性自由边界仿真代码（GSevolve）用于仿真闭环响应和离线确定控制参数。报告了在DIII-D等离子运动期间该应用程序的实施和首次实验结果。