A locked mode indicator for disruption prediction on JET and ASDEX upgrade

the ASDEX Upgrade Team, the EUROfusion MST1 Team, the JET Contributors, the EUROfusion MST1 Team

Research output: Contribution to journalArticle

Abstract

The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks. A common definition of such an indicator for different machines would facilitate the development of portable systems for disruption prediction, which is becoming of increasingly importance for the next tokamak generations. Moreover, the indicator allows us to overcome some intrinsic problems in the diagnostic system such as drift and offset. The behavior of the proposed indicator as disruption predictor, based on crossing optimized thresholds of the signal amplitude, has been analyzed using data of both JET and ASDEX Upgrade experiments. A thorough analysis of the disruption prediction performance shows how the indicator is able to recover some missed and tardy detections of the raw signal. Moreover, it intervenes and corrects premature or even wrong alarms due to, e.g., drifts and/or offsets.

Original languageEnglish
Pages (from-to)254-266
Number of pages13
JournalFusion Engineering and Design
Volume138
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Signal processing
Experiments

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

the ASDEX Upgrade Team, the EUROfusion MST1 Team, the JET Contributors, & the EUROfusion MST1 Team (2019). A locked mode indicator for disruption prediction on JET and ASDEX upgrade. Fusion Engineering and Design, 138, 254-266. https://doi.org/10.1016/j.fusengdes.2018.11.021

A locked mode indicator for disruption prediction on JET and ASDEX upgrade. / the ASDEX Upgrade Team; the EUROfusion MST1 Team; the JET Contributors; the EUROfusion MST1 Team.

In: Fusion Engineering and Design, Vol. 138, 01.01.2019, p. 254-266.

Research output: Contribution to journalArticle

the ASDEX Upgrade Team, the EUROfusion MST1 Team, the JET Contributors & the EUROfusion MST1 Team 2019, 'A locked mode indicator for disruption prediction on JET and ASDEX upgrade', Fusion Engineering and Design, vol. 138, pp. 254-266. https://doi.org/10.1016/j.fusengdes.2018.11.021
the ASDEX Upgrade Team, the EUROfusion MST1 Team, the JET Contributors, the EUROfusion MST1 Team. A locked mode indicator for disruption prediction on JET and ASDEX upgrade. Fusion Engineering and Design. 2019 Jan 1;138:254-266. https://doi.org/10.1016/j.fusengdes.2018.11.021
the ASDEX Upgrade Team ; the EUROfusion MST1 Team ; the JET Contributors ; the EUROfusion MST1 Team. / A locked mode indicator for disruption prediction on JET and ASDEX upgrade. In: Fusion Engineering and Design. 2019 ; Vol. 138. pp. 254-266.
@article{164a7eb268604edab203d7d6e8a21b31,
title = "A locked mode indicator for disruption prediction on JET and ASDEX upgrade",
abstract = "The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks. A common definition of such an indicator for different machines would facilitate the development of portable systems for disruption prediction, which is becoming of increasingly importance for the next tokamak generations. Moreover, the indicator allows us to overcome some intrinsic problems in the diagnostic system such as drift and offset. The behavior of the proposed indicator as disruption predictor, based on crossing optimized thresholds of the signal amplitude, has been analyzed using data of both JET and ASDEX Upgrade experiments. A thorough analysis of the disruption prediction performance shows how the indicator is able to recover some missed and tardy detections of the raw signal. Moreover, it intervenes and corrects premature or even wrong alarms due to, e.g., drifts and/or offsets.",
author = "{the ASDEX Upgrade Team} and {the EUROfusion MST1 Team} and {the JET Contributors} and {the EUROfusion MST1 Team} and G. Sias and B. Cannas and A. Fanni and A. Murari and A. Pau and A. Kallenbach and D. Aguiam and L. Aho-Mantila and C. Angioni and N. Arden and {Arredondo Parra}, R. and O. Asunta and {de Baar}, M. and M. Balden and K. Behler and A. Bergmann and J. Bernardo and M. Bernert and M. Beurskens and A. Biancalani and R. Bilato and G. Birkenmeier and V. Bobkov and A. Bock and A. Bogomolov and T. Bolzonella and B. Boeswirth and C. Bottereau and A. Bottino and {van den Brand}, H. and S. Brezinsek and D. Brida and F. Brochard and C. Bruhn and J. Buchanan and A. Buhler and A. Burckhart and D. Cambon-Silva and Y. Camenen and P. Carvalho and G. Carrasco and C. Cazzaniga and M. Carr and D. Carralero and L. Casali and C. Castaldo and M. Cavedon and C. Challis and A. Chankin and I. Chapman",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.fusengdes.2018.11.021",
language = "English",
volume = "138",
pages = "254--266",
journal = "Fusion Engineering and Design",
issn = "0920-3796",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - A locked mode indicator for disruption prediction on JET and ASDEX upgrade

AU - the ASDEX Upgrade Team

AU - the EUROfusion MST1 Team

AU - the JET Contributors

AU - the EUROfusion MST1 Team

AU - Sias, G.

AU - Cannas, B.

AU - Fanni, A.

AU - Murari, A.

AU - Pau, A.

AU - Kallenbach, A.

AU - Aguiam, D.

AU - Aho-Mantila, L.

AU - Angioni, C.

AU - Arden, N.

AU - Arredondo Parra, R.

AU - Asunta, O.

AU - de Baar, M.

AU - Balden, M.

AU - Behler, K.

AU - Bergmann, A.

AU - Bernardo, J.

AU - Bernert, M.

AU - Beurskens, M.

AU - Biancalani, A.

AU - Bilato, R.

AU - Birkenmeier, G.

AU - Bobkov, V.

AU - Bock, A.

AU - Bogomolov, A.

AU - Bolzonella, T.

AU - Boeswirth, B.

AU - Bottereau, C.

AU - Bottino, A.

AU - van den Brand, H.

AU - Brezinsek, S.

AU - Brida, D.

AU - Brochard, F.

AU - Bruhn, C.

AU - Buchanan, J.

AU - Buhler, A.

AU - Burckhart, A.

AU - Cambon-Silva, D.

AU - Camenen, Y.

AU - Carvalho, P.

AU - Carrasco, G.

AU - Cazzaniga, C.

AU - Carr, M.

AU - Carralero, D.

AU - Casali, L.

AU - Castaldo, C.

AU - Cavedon, M.

AU - Challis, C.

AU - Chankin, A.

AU - Chapman, I.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks. A common definition of such an indicator for different machines would facilitate the development of portable systems for disruption prediction, which is becoming of increasingly importance for the next tokamak generations. Moreover, the indicator allows us to overcome some intrinsic problems in the diagnostic system such as drift and offset. The behavior of the proposed indicator as disruption predictor, based on crossing optimized thresholds of the signal amplitude, has been analyzed using data of both JET and ASDEX Upgrade experiments. A thorough analysis of the disruption prediction performance shows how the indicator is able to recover some missed and tardy detections of the raw signal. Moreover, it intervenes and corrects premature or even wrong alarms due to, e.g., drifts and/or offsets.

AB - The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks. A common definition of such an indicator for different machines would facilitate the development of portable systems for disruption prediction, which is becoming of increasingly importance for the next tokamak generations. Moreover, the indicator allows us to overcome some intrinsic problems in the diagnostic system such as drift and offset. The behavior of the proposed indicator as disruption predictor, based on crossing optimized thresholds of the signal amplitude, has been analyzed using data of both JET and ASDEX Upgrade experiments. A thorough analysis of the disruption prediction performance shows how the indicator is able to recover some missed and tardy detections of the raw signal. Moreover, it intervenes and corrects premature or even wrong alarms due to, e.g., drifts and/or offsets.

UR - http://www.scopus.com/inward/record.url?scp=85057571211&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057571211&partnerID=8YFLogxK

U2 - 10.1016/j.fusengdes.2018.11.021

DO - 10.1016/j.fusengdes.2018.11.021

M3 - Article

AN - SCOPUS:85057571211

VL - 138

SP - 254

EP - 266

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

SN - 0920-3796

ER -