EAST PCS异常事件处理算法

Current Slope Reduction Algorithm of EAST PCS

随着EAST实验装置的不断升级和等离子体放电参数的不断提高,获得的等离子体电流也在不断提高.高能量等离子体一旦破裂,将直接作用在实验装置的第一壁上面,带来毁灭性的灾害.本文研究了针对放电过程中出现的异常事件的处理,并且通过代码实现了控制等离子体电流在异常状态下斜率下降的算法.通过主动反馈控制的方法对发生异常的等离子体进行控制,达到对于电流的斜率下降.这个方法的有效性已经采用带圆等离子体模型的simulation server验证过了.

With the escalating of EAST and the continuous improvement of plasma discharge parameters, the obtained plasma current and energy storage also have been increased. Once such a high-energy plasma disrupts, the harm to the first wall of the experiment device is destructive. This article is to handle the abnormal events occurring during the plasma discharge, and proposes the algorithm which can control plasma current in the abnormal state of the slope down through the code. The abnormal plasma is controlled by the active feedback control method, and the current of the plasma can be sloping down. The effectiveness of this method has been verified by a simulation server with a circular plasma model.