Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Per Brunsell"'
Autor:
Riccardo Ragona, Marek Rubel, Yurii Kovtun, A. Goriaev, Tom Wauters, Dirk Nicolai, Christian Linsmeier, Per Petersson, Sören Möller, S. Brezinsek, Sunwoo Moon, Per Brunsell
Publikováno v:
Physica scripta 96(12), 124025-(2021). doi:10.1088/1402-4896/ac2494
Electron- (ECWC) and ion- (ICWC) cyclotron wall conditioning are essential means for controlled fusion to modify the surface state of plasma-facing components in order to reduce impurity generation and fuel accumulation in the wall. Development of EC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a67c97d2a5f89f835d4d7e15e7830bb
https://juser.fz-juelich.de/record/910661
https://juser.fz-juelich.de/record/910661
Publikováno v:
Fusion Engineering and Design
This paper presents a graybox methodology to model the resistive wall mode instability by combining first principle approach and system identification technique. In particular we propose a separate ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::133b54a087102d74e40b8ffe70f270c8
https://doi.org/10.1016/j.fusengdes.2017.07.011
https://doi.org/10.1016/j.fusengdes.2017.07.011
Publikováno v:
Fusion Engineering and Design. 87:1926-1929
A multibatch formulation of a multi-input multi-output closed-loop subspace system identification method is employed for the purpose of obtaining control-relevant models of the vacuum-plasma respon ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::492ad2fd9ed29d34b08e19fa936e9c20
https://doi.org/10.1016/j.fusengdes.2012.04.001
https://doi.org/10.1016/j.fusengdes.2012.04.001
Publikováno v:
Plasma Physics and Controlled Fusion
Many implementations of a model-based approach for toroidal plasma have shown better control performance compared to the conventional type of feedback controller. One prerequisite of model-based co ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dedfd2b5dccee71ea018f884568c587
An error field (EF) detection technique using the amplitude modulation of a naturally rotating tearing mode (TM) is developed and validated in the EXTRAP T2R reversed field pinch. The technique was used to identify intrinsic EFs of $m/n = 1/-12$, whe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28250ce4f42c6448b36d21a38afe6bb3
Publikováno v:
CDC
Magnetic confinement fusion (MCF) devices suffer from magnetohydrodynamic (MHD) instabilities. A particular unstable mode, known as the resistive wall mode (RWM), is treated in this work. The RWM perturbs the plasma globally and can degrade the confi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af8c3ea9d8500c0cefdb527f7518e0fe
https://doi.org/10.1109/cdc.2015.7403379
https://doi.org/10.1109/cdc.2015.7403379
Closed-Loop System Identification and Controller Reconfiguration for EXTRAP T2R Reversed-Field Pinch
Publikováno v:
IEEE Transactions on Plasma Science. 38:365-370
We first briefly summarize a supposedly efficient novel method for measuring the external plasma response as applied to the inherently unstable reversed-field pinch EXTRAP T2R. Second, the set of parameters estimated with this particular method is ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa023801f1b9c593f65e889ac664194d
https://doi.org/10.1109/tps.2009.2038380
https://doi.org/10.1109/tps.2009.2038380
Autor:
Erik Olofsson, Per Brunsell
Publikováno v:
Fusion Engineering and Design. 84:1455-1459
A novel control system design for magnetohydrodynamic (MHD) resistive-wall mode (RWM) stabilization is developed from the viewpoint of process control. The engineering approach assumed consists o ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e83a313eb1d0af826cd8e1a696bfaa
https://doi.org/10.1016/j.fusengdes.2008.11.052
https://doi.org/10.1016/j.fusengdes.2008.11.052
Publikováno v:
Plasma Physics and Controlled Fusion
A model predictive control (MPC) method for stabilization of the resistive wall mode (RWM) in the EXTRAP T2R reversed-field pinch is presented. The system identification technique is used to obtain ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3d24c0c3d1f9750d193bc87c169736f
Autor:
James R. Drake, Per Brunsell, Elisabeth Rachlew, Dimitry Yadikin, Mattias Kuldkepp, Anders Hedqvist, Sheena Menmuir, Marco Cecconello
Publikováno v:
Nuclear Fusion. 46:904-913
Discharges in the thin shell reversed field pinch (RFP) device EXTRAP T2R without active feedback control are characterized by growth of non-resonant m = 1 unstable resistive wall modes (RWMs) in a ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10bb07b59c18307091b6e79a248c6531
https://doi.org/10.1088/0029-5515/46/11/004
https://doi.org/10.1088/0029-5515/46/11/004