English

EAST discharge prediction without integrating simulation results

Plasma Physics 2022-11-23 v4

Abstract

In this work, a purely data-driven discharge prediction model was developed and tested without integrating any data or results from simulations. The model was developed based on the experimental data from the Experimental Advanced Superconducting Tokamak (EAST) campaign 2010-2020 discharges and can predict the actual plasma current IpI_{p}, normalized beta βn\beta_{n}, toroidal beta βt\beta_{t}, beta poloidal βp\beta_{p}, electron density nen_{e}, store energy WmhdW_{mhd}, loop voltage VloopV_{loop}, elongation at plasma boundary κ\kappa, internal inductance lil_{i}, q at magnetic axis q0q_{0}, and q at 95% flux surface q95q_{95}. The average similarities of all the selected key diagnostic signals between prediction results and the experimental data are greater than 90%, except for the VloopV_{loop} and q0q_{0}. Before a tokamak experiment, the values of actuator signals are set in the discharge proposal stage, with the model allowing to check the consistency of expected diagnostic signals. The model can give the estimated values of the diagnostic signals to check the reasonableness of the tokamak experimental proposal.

Keywords

Cite

@article{arxiv.2110.00346,
  title  = {EAST discharge prediction without integrating simulation results},
  author = {Chenguang Wan and Zhi Yu and Alessandro Pau and Xiaojuan Liu and Jiangang Li},
  journal= {arXiv preprint arXiv:2110.00346},
  year   = {2022}
}
R2 v1 2026-06-24T06:33:08.532Z