Extraction of the plasma current contribution from the numerically integrated magnetic signals in ISTTOK

Corona, D.; Torres, A.; Aymerich, E.; Cianciulli, A.; Falco, Antonietta de; Carvalho, Bernardo B.; Figueredo, H.; Alves, Helena; Fernandes, H.

doi:10.1088/1748-0221/15/02/c02020

Cited by 1 publication

(2 citation statements)

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“…ISTTOK integrates a set of different diagnostics to retrieve important plasma parameters, including Langmuir probes, interferometry, tomography and magnetic probes [14]. In particular, ISTTOK has a set of 12 poloidally distributed magnetic field probes (Mirnov coils), as shown in figure 2.…”

Section: B Diagnostics and Actuatorsmentioning

confidence: 99%

“…The real-time measurements of the plasma current and centroid position are used in the implementation of a feedback control loop for these quantities. The reconstruction of these quantities has been widely addressed in the previous work presented in [14]. The controller design, on the other hand, is based on a state-space model that links the PF currents to the quantities of interest; such model is obtained through a data-driven procedure, discussed in section V-B.…”

Section: Isttok Real-time Plasma Position Controlmentioning

confidence: 99%

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Implementation of a High-Speed Multichannel Data Acquisition System for Magnetic Diagnostics and Plasma Centroid Position Control in ISTTOK

et al. 2023

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In tokamak and other fusion devices, magnetic control is the main tool that allows to regulate the plasma current, position and shape; it is in charge of actuating the desired plasma current waveform, steering the plasma position to a given set point and maintain the plasma shape close to a prescribed plasma equilibrium. This work describes the application of several physics concepts and computational tools in order to obtain a novel optimal controller for the plasma centroid position, which has been implemented and tested in the real-time plasma control system at the ISTTOK tokamak. A key point for the development of the new control system was the installation of a recently upgraded hardware, that numerically integrates in real-time the magnetic probes signals.INDEX TERMS Real-time control, plasma current, plasma current centroid position, magnetic probe, poloidal field coils, numerical integration.

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Section: B Diagnostics and Actuatorsmentioning

confidence: 99%

Section: Isttok Real-time Plasma Position Controlmentioning

confidence: 99%