Schema de realizare a proiectului 23 03 01 - Anul 2024 - Etapa II

Contractul nr.: 30N/12.01.2023
Proiectul: "Dezvoltarea de solutii inovatoare si tehnologii de fabricație avansată cu laseri, plasmă și radiații pentru rezolvarea problemelor societale"

Faza 11/2024: "Dezvoltarea de metode de predicție a disrupțiilor în plasma de fuziune prin analiza semnalelor ce descriu evoluția topologiei configurației magnetice"

Responsabili fază: Dr. Teddy CRACIUNESCU, Dr. Eduard GRIGORE

Termen de încheiere a fazei: 08.10.2024

Abstract:

  The approaching initial operation of major new tokomaks is rendering more pressing the need for effective disruption prediction techniques. The required tools should be not only accurate but also capable of operating with a minimum number of signals, because in the first campaigns of new devices typically only a very limited number of diagnostics is available. A method has been developed based on an advanced statistical techniques, dedicated to the detection of the concept drift in plasma diagnostic time series. This method is capable of detecting the plasma drifting towards dangerous regions of the operational space using only global signals such as the plasma current or the locked mode amplitude. The obtained performances meet the requirements of mitigation in devices such as JT60-SA and ITER at the beginning of their operation. The method provides a high rate of correct predictions, arround 98%, missed alarms of the order of a few percent and the false alarms of the order of 10%. The method is able to issue prediction at ~400 ms before the disruption which is a comfortable time allowing the safe landing of the plasma.

Abstract grafic: