Comment on 'Numerical study on neoclassical tearing mode stabilization via minimum seeking method for the island width growth rate'

Nuclear Fushion

article

C.J. Rapson¹  D.A. Humphreys²  M. Maraschek¹  W. Treutterer¹ 

[1] Max Planck Institute for Plasma Physics;General Atomics

关键词: robust control;    neoclassical tearing modes;    numerical simulation;   

DOI  :  10.1088/0029-5515/56/3/038001

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

The discussion in paper [1] is centred around the optimalmethod to localise a neoclassical tearing mode (NTM).Specifically, the authors compare two methods using theresponse of the NTM to a nearby electron cyclotron (EC)beam, since the closer the centre of the EC beam is to the centre of the NTM, the stronger the stabilising effect will be. Thepaper in question compares the efficacy of using the amplitudeof the NTM (island width, w(t)) or the island width growthrate w t( )tdd for a controller. The paper concludes that using theisland width growth rate is both faster and more robust.

【 授权许可】

Unknown