A first attempt at few coils and low-coverage resistive wall mode stabilization of EXTRAP T2R
2012 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 54, no 9, 094005- p.Article in journal (Refereed) Published
The reversed-field pinch features resistive-shell-type instabilities at any (vanishing and finite) plasma pressure. An attempt to stabilize the full spectrum of these modes using both (i) incomplete coverage and (ii) few coils is presented. Two empirically derived model-based control algorithms are compared with a baseline guaranteed suboptimal intelligent-shell-type (IS) feedback. Experimental stabilization could not be achieved for the coil array subset sizes considered by this first study. But the model-based controllers appear to significantly outperform the decentralized IS method.
Place, publisher, year, edition, pages
2012. Vol. 54, no 9, 094005- p.
Coil arrays, Full spectrum, Model-based control, Model-based controller, Plasma pressures, Resistive wall modes, Reversed-field pinch, Algorithms, Plasma diagnostics, Stabilization
IdentifiersURN: urn:nbn:se:kth:diva-103670DOI: 10.1088/0741-3335/54/9/094005ISI: 000308046300007ScopusID: 2-s2.0-84865176374OAI: oai:DiVA.org:kth-103670DiVA: diva2:561224
QC 201210172012-10-172012-10-172013-12-04Bibliographically approved