PaMMA-Net: Plasmas magnetic measurement evolution based on data-driven incremental accumulative prediction
This addresses the challenge of robust and efficient plasma evolution for fusion research, though it is incremental as it builds on deep learning methods in this domain.
The paper tackles the problem of accurately evolving magnetic measurements in fusion plasmas for control and study, introducing PaMMA-Net, a deep learning method that achieves superior evolution results on real experimental data from EAST compared to existing studies.
An accurate evolution model is crucial for effective control and in-depth study of fusion plasmas. Evolution methods based on physical models often encounter challenges such as insufficient robustness or excessive computational costs. Given the proven strong fitting capabilities of deep learning methods across various fields, including plasma research, this paper introduces a deep learning-based magnetic measurement evolution method named PaMMA-Net (Plasma Magnetic Measurements Incremental Accumulative Prediction Network). This network is capable of evolving magnetic measurements in tokamak discharge experiments over extended periods or, in conjunction with equilibrium reconstruction algorithms, evolving macroscopic parameters such as plasma shape. Leveraging a incremental prediction approach and data augmentation techniques tailored for magnetic measurements, PaMMA-Net achieves superior evolution results compared to existing studies. The tests conducted on real experimental data from EAST validate the high generalization capability of the proposed method.