摘要
磁流体不稳定性(MHD)是影响HT-7长脉冲放电的一个重要因素,通常可以通过调制低杂波电流驱动的方法来抑制MHD。实验发现全程调制低杂波电流驱动会降低低杂波的驱动效率。我们采用了主动反馈调制低杂波电流驱动的方法,设计并实现了MHD的实时检测与处理系统。研究结果表明,该系统既可以实时地抑制MHD,又不降低低杂波驱动效率。
In the experiments of HT-7 superconducting tokamak, the instability of the magneto-hydrodynamics （MHD） is an important factor influencing HT-7 long pulse discharge. Usually, we can suppress MHD through the method of modulating lower hybrid current drive （LHCD）. However, experiments found that the LHCD modulation of the whole journey will reduce the drive efficiency of the lower hybrid wave （LHW）. Adopting the method of initiative feedback modulating LHCD, we have designed and realized an MHD real-time measuring and processing system. Experimental result has indicated that the system can not only suppress MHD real-timely, but also is unlikely to reduce the drive efficiency of LHW.
出处
《核技术》
EI
CAS
CSCD
北大核心
2005年第10期794-798,共5页
Nuclear Techniques
基金
国家发展计划委员会"计投资(1998)1303号项目"(子项目)
