Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise

doi:10.1080/15361055.2017.1404416

Title: Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise

Abstract

Not provided.

Authors:

Wang, S. ^[1]; Liu, Y. Q. ^[2]; Song, X. M. ^[1]; Zheng, G. Y. ^[1]; Xia, G. L. ^[3]; Li, L. ^[4]

Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China; General Atomics, P.O. Box 85608, San Diego, California 92186-5608
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China; Culham Science Centre, CCFE, Abingdon, OX14 3DB, United Kingdom
Donghua University, College of Science, Shanghai 201620, China

Publication Date:: 2017-12-28

Research Org.:: General Atomics, San Diego, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1540361

DOE Contract Number:: FC02-04ER54698; FG02-95ER54309

Resource Type:: Journal Article

Journal Name:: Fusion Science and Technology

Additional Journal Information:: Journal Volume: 73; Journal Issue: 4; Journal ID: ISSN 1536-1055

Publisher:: American Nuclear Society

Country of Publication:: United States

Language:: English

Subject:: Nuclear Science & Technology

Citation Formats


                    Wang, S., Liu, Y. Q., Song, X. M., Zheng, G. Y., Xia, G. L., and Li, L. Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise.  United States: N. p., 2017. 
        Web.  doi:10.1080/15361055.2017.1404416.

Copy to clipboard


                    Wang, S., Liu, Y. Q., Song, X. M., Zheng, G. Y., Xia, G. L., & Li, L. Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise.  United States.  doi:10.1080/15361055.2017.1404416.

Copy to clipboard


                    Wang, S., Liu, Y. Q., Song, X. M., Zheng, G. Y., Xia, G. L., and Li, L. Thu .  
        "Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise".  United States.  doi:10.1080/15361055.2017.1404416.

Copy to clipboard


                    
@article{osti_1540361,

  title        = {Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise},

  author       = {Wang, S. and Liu, Y. Q. and Song, X. M. and Zheng, G. Y. and Xia, G. L. and Li, L.},

  abstractNote = {Not provided.},

  doi          = {10.1080/15361055.2017.1404416},

  journal      = {Fusion Science and Technology},

  issn         = {1536-1055},

  number       = 4,

  volume       = 73,

  place        = {United States},

  year         = {2017},

  month        = {12}

}

Copy to clipboard

Journal Article:

DOI: 10.1080/15361055.2017.1404416

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Improved plasma performance in tokamaks with negative magnetic shear
journal, February 1994

Kessel, C.; Manickam, J.; Rewoldt, G.
Physical Review Letters, Vol. 72, Issue 8
DOI: 10.1103/PhysRevLett.72.1212

Resistive Wall Mode in Collisionless Quasistationary Plasmas
journal, September 2004

Hu, Bo; Betti, R.
Physical Review Letters, Vol. 93, Issue 10
DOI: 10.1103/PhysRevLett.93.105002

Resistive wall stabilized operation in rotating high beta NSTX plasmas
journal, April 2006

Sabbagh, S. A.; Sontag, A. C.; Bialek, J. M.
Nuclear Fusion, Vol. 46, Issue 5
DOI: 10.1088/0029-5515/46/5/014

Reduced Critical Rotation for Resistive-Wall Mode Stabilization in a Near-Axisymmetric Configuration
journal, February 2007

Reimerdes, H.; Garofalo, A. M.; Jackson, G. L.
Physical Review Letters, Vol. 98, Issue 5
DOI: 10.1103/PhysRevLett.98.055001

Identification of a Low Plasma-Rotation Threshold for Stabilization of the Resistive-Wall Mode
journal, February 2007

Takechi, M.; Matsunaga, G.; Aiba, N.
Physical Review Letters, Vol. 98, Issue 5
DOI: 10.1103/PhysRevLett.98.055002

Toroidal self-consistent modeling of drift kinetic effects on the resistive wall mode
journal, November 2008

Liu, Yueqiang; Chu, M. S.; Chapman, I. T.
Physics of Plasmas, Vol. 15, Issue 11
DOI: 10.1063/1.3008045

The role of kinetic effects, including plasma rotation and energetic particles, in resistive wall mode stability
journal, August 2010

Berkery, J. W.; Sabbagh, S. A.; Reimerdes, H.
Physics of Plasmas, Vol. 17, Issue 8
DOI: 10.1063/1.3474925

Kinetic effects of trapped energetic particles on stability of external kink modes with a resistive wall
journal, March 2012

Hao, G. Z.; Liu, Y. Q.; Wang, A. K.
Physics of Plasmas, Vol. 19, Issue 3
DOI: 10.1063/1.3692185

Plasma-Resistivity-Induced Strong Damping of the Kinetic Resistive Wall Mode
journal, October 2014

He, Yuling; Liu, Yueqiang; Liu, Yue
Physical Review Letters, Vol. 113, Issue 17
DOI: 10.1103/PhysRevLett.113.175001

Effects of plasma shear flow on the RWM stability in ITER
journal, May 2015

Liu, Chao; Liu, Yueqiang; Liu, Yue
Nuclear Fusion, Vol. 55, Issue 6
DOI: 10.1088/0029-5515/55/6/063022

Active Feedback Stabilization of Toroidal External Modes in Tokamaks
journal, January 2000

Liu, Y. Q.; Bondeson, A.
Physical Review Letters, Vol. 84, Issue 5
DOI: 10.1103/PhysRevLett.84.907

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. I. Electromagnetic model
journal, September 2000

Liu, Y. Q.; Bondeson, A.; Fransson, C. M.
Physics of Plasmas, Vol. 7, Issue 9
DOI: 10.1063/1.1287744

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. II. Control analysis
journal, January 2000

Fransson, C. M.; Lennartson, B.; Breitholtz, C.
Physics of Plasmas, Vol. 7, Issue 10
DOI: 10.1063/1.1290481

Active feedback stabilization of the resistive wall mode on the DIII-D device
journal, May 2001

Okabayashi, M.; Bialek, J.; Chance, M. S.
Physics of Plasmas, Vol. 8, Issue 5
DOI: 10.1063/1.1351823

Closed-loop feedback of MHD instabilities on DIII-D ^†
journal, February 2001

Fredrickson, E. D.; Bialek, J.; Garofalo, A. M.
Plasma Physics and Controlled Fusion, Vol. 43, Issue 3
DOI: 10.1088/0741-3335/43/3/307

Resistive wall mode dynamics and active feedback control in DIII-D
journal, September 2001

Garofalo, A. M.; Chu, M. S.; Fredrickson, E. D.
Nuclear Fusion, Vol. 41, Issue 9
DOI: 10.1088/0029-5515/41/9/305

Resistive wall stabilization of high-beta plasmas in DIII–D
journal, May 2003

Strait, E. J.; Bialek, J.; Bogatu, N.
Nuclear Fusion, Vol. 43, Issue 6
DOI: 10.1088/0029-5515/43/6/306

Resistive wall mode stabilization with internal feedback coils in DIII-D
journal, May 2004

Strait, E. J.; Bialek, J. M.; Bogatu, I. N.
Physics of Plasmas, Vol. 11, Issue 5
DOI: 10.1063/1.1666238

Comprehensive control of resistive wall modes in DIII-D advanced tokamak plasmas
journal, October 2009

Okabayashi, M.; Bogatu, I. N.; Chance, M. S.
Nuclear Fusion, Vol. 49, Issue 12
DOI: 10.1088/0029-5515/49/12/125003

Optimal control of tokamak resistive wall modes in the presence of noise
journal, November 2003

Sen, A. K.; Nagashima, M.; Longman, R. W.
Physics of Plasmas, Vol. 10, Issue 11
DOI: 10.1063/1.1616560

Physical understanding of the instability spectrum and the feedback control of resistive wall modes in reversed field pinch
journal, April 2011

Wang, Z. R.; Guo, S. C.
Nuclear Fusion, Vol. 51, Issue 5
DOI: 10.1088/0029-5515/51/5/053004

Active control of the resistive wall mode with power saturation
journal, January 2012

Li, Li; Liu, Yue; Liu, Yueqiang
Physics of Plasmas, Vol. 19, Issue 1
DOI: 10.1063/1.3672512

Synergetic effects of magnetic feedback and plasma flow on resistive wall mode stability in tokamaks
journal, July 2014

Xia, Guoliang; Liu, Yue; Liu, Yueqiang
Plasma Physics and Controlled Fusion, Vol. 56, Issue 9
DOI: 10.1088/0741-3335/56/9/095009

Stabilization of resistive wall modes in tokamaks by drift kinetic effects combined with magnetic feedback
journal, July 2015

Xia, Guoliang; Liu, Yueqiang; Liu, Yue
Nuclear Fusion, Vol. 55, Issue 9
DOI: 10.1088/0029-5515/55/9/093007

Chapter 3: MHD stability, operational limits and disruptions
journal, June 2007

Hender, T. C.; Wesley, J. C.; Bialek, J.
Nuclear Fusion, Vol. 47, Issue 6
DOI: 10.1088/0029-5515/47/6/S03

MHD-Limits to Plasma Confinement
journal, January 1984

Troyon, F.; Gruber, R.; Saurenmann, H.
Plasma Physics and Controlled Fusion, Vol. 26, Issue 1A
DOI: 10.1088/0741-3335/26/1A/319

Effects of thick blanket modules on the resistive wall modes stability in ITER
journal, November 2010

Villone, Fabio; Liu, Yueqiang; Rubinacci, Guglielmo
Nuclear Fusion, Vol. 50, Issue 12
DOI: 10.1088/0029-5515/50/12/125011

Modelling resistive wall modes in ITER with self-consistent inclusion of drift kinetic resonances
journal, February 2009

Liu, Yueqiang; Chu, M. S.; Chapman, I. T.
Nuclear Fusion, Vol. 49, Issue 3
DOI: 10.1088/0029-5515/49/3/035004

Effects of α particles on the resistive wall mode stability in ITER
journal, July 2010

Liu, Yueqiang
Nuclear Fusion, Vol. 50, Issue 9
DOI: 10.1088/0029-5515/50/9/095008

Control of resistive wall modes in tokamak plasmas
journal, March 2014

Ariola, M.; De Tommasi, G.; Pironti, A.
Control Engineering Practice, Vol. 24
DOI: 10.1016/j.conengprac.2013.11.009

Equilibrium and global MHD stability study of KSTAR high beta plasmas under passive and active mode control
journal, January 2010

Katsuro-Hopkins, O.; Sabbagh, S. A.; Bialek, J. M.
Nuclear Fusion, Vol. 50, Issue 2
DOI: 10.1088/0029-5515/50/2/025019

Feedback suppression of rotating external kink instabilities in the presence of noise
journal, August 2008

Hanson, Jeremy M.; De Bono, Bryan; James, Royce W.
Physics of Plasmas, Vol. 15, Issue 8
DOI: 10.1063/1.2974797

A Kalman filter for feedback control of rotating external kink instabilities in the presence of noise
journal, May 2009

Hanson, Jeremy M.; De Bono, Bryan; Levesque, Jeffrey P.
Physics of Plasmas, Vol. 16, Issue 5
DOI: 10.1063/1.3110110

Modeling of resistive wall mode and its control in experiments and ITER
journal, May 2006

Liu, Yueqiang; Chu, M. S.; Garofalo, A. M.
Physics of Plasmas, Vol. 13, Issue 5
DOI: 10.1063/1.2177199

Multimachine Data–Based Prediction of High-Frequency Sensor Signal Noise for Resistive Wall Mode Control in ITER
journal, November 2016

Liu, Yueqiang; Sabbagh, S. A.; Chapman, I. T.
Fusion Science and Technology, Vol. 70, Issue 3
DOI: 10.13182/FST15-207

Identification of Vertical Instabilities in the JET Tokamak
journal, June 2008

Albanese, R.; Artaserse, G.; Maviglia, F.
IEEE Transactions on Magnetics, Vol. 44, Issue 6
DOI: 10.1109/TMAG.2007.915331

Similar records in OSTI.GOV collections:

Multimachine data–based prediction of high-frequency sensor signal noise for resistive wall mode control in ITER

Journal Article Liu, Yueqiang ; Sabbagh, S. A. ; Chapman, I. T. ; ... - Fusion Science and Technology

The high-frequency noise measured by magnetic sensors, at levels above the typical frequency of resistive wall modes, is analyzed across a range of present tokamak devices including DIII-D, JET, MAST, ASDEX Upgrade, JT-60U, and NSTX. A high-pass filter enables identification of the noise component with Gaussian-like statistics that shares certain common characteristics in all devices considered. A conservative prediction is made for ITER plasma operation of the high-frequency noise component of the sensor signals, to be used for resistive wall mode feedback stabilization, based on the multimachine database. The predicted root-mean-square n = 1 (n is the toroidal mode number)more »« less
DOI: 10.13182/fst15-207

Full Text Available
Destabilization of resistive plasma resistive wall mode by anisotropic thermal transport

Journal Article Bai, Xue ; Liu, Yueqiang ; Gao, Zhe ; ... - Physics of Plasmas

Here, both an analytic model and the toroidal MARS-F code have been employed to study the effect of the anisotropic thermal transport on the stability of the resistive wall mode (RWM) in resistive tokamak plasmas. The results show that thermal transport destabilizes the resistive plasma RWM, by effectively eliminating the Glasser-Greene-Johnson favorable average curvature stabilization associated with the resistive layer. Modification of the mode eigenfunction is also observed in MARS-F computations, due to the presence of the anisotropic thermal transport.
DOI: 10.1063/1.5041025

Full Text Available
Multiple branches of resistive wall mode instability in a resistive plasma

Journal Article Yang, S. X. ; Liu, Y. Q. ; Hao, G. Z. ; ... - Physics of Plasmas

We observe that the resistive wall mode (RWM) instability is numerically investigated for a toroidal resistive plasma, with results compared to those of an analytic cylindrical model. The full toroidal code MARS-F [Liu et al., Phys. Plasmas 7, 3681 (2000)] is applied for a computational study. The results indicate that there are two branches of unstable RWMs, when the toroidal favorable average curvature effect (the GGJ effect) is taken into account in the resistive layer. In addition, the GGJ physics not only directly affects the mode growth rate, but also indirectly modifies the mode stability by changing the continuum dampingmore »« less
DOI: 10.1063/1.5007819

Full Text Available
Multimachine Data–Based Prediction of High-Frequency Sensor Signal Noise for Resistive Wall Mode Control in ITER

Journal Article Liu, Yueqiang ; Sabbagh, S. A. ; Chapman, I. T. ; ... - Fusion Science and Technology

The high frequency noise, above the frequency of typical resistive wall modes, from magnetic pickup coils is analysed across a range of present tokamak devices including DIII-D, JET, MAST, ASDEX Upgrade, JT-60U and NSTX. Application of a high-pass filter enables identification of the noise component with Gaussian-like statistics, that shares certain common characteristics in all devices considered. A conservative prediction is made for ITER plasmas based on the multi-machine database, for the high-frequency noise component of the sensor signals, for the purpose of feedback stabilisation of the resistive wall mode. The predicted root-mean-square n=1 (n is the toroidal mode number)more »« less
DOI: 10.13182/fst15-207

Full Text Available
Screening of resonant magnetic perturbation fields by poloidally varying toroidal plasma rotation

Journal Article Li, L. ; Liu, Y. Q. ; Loarte, A. ; ... - Physics of Plasmas

The angular frequency of the subsonic equilibrium toroidal flow in a tokamak plasma is typically assumed constant at magnetic flux surfaces, i.e., the rotation frequency does not vary along the poloidal angle of the flux surface. Yet, there are several cases where this symmetry is broken. An interesting situation is a recently observed complex flow pattern induced by magnetic field line ergodization, in the presence of the tri-dimensional (3-D) resonant magnetic perturbation (RMP) [Schmitz et al., Nucl. Fusion 56, 066008 (2016)]. A new flow model including poloidally varying rotation frequencies has been implemented in the full resistive linear MHD codemore »« less
DOI: 10.1063/1.5044548

Full Text Available

Similar Records

Title: Toroidal Modeling of RWM Feedback in the Presence of Control Voltage Saturation and Sensor Noise

Abstract

Citation Formats

Improved plasma performance in tokamaks with negative magnetic shear journal, February 1994

Resistive Wall Mode in Collisionless Quasistationary Plasmas journal, September 2004

Resistive wall stabilized operation in rotating high beta NSTX plasmas journal, April 2006

Reduced Critical Rotation for Resistive-Wall Mode Stabilization in a Near-Axisymmetric Configuration journal, February 2007

Identification of a Low Plasma-Rotation Threshold for Stabilization of the Resistive-Wall Mode journal, February 2007

Toroidal self-consistent modeling of drift kinetic effects on the resistive wall mode journal, November 2008

The role of kinetic effects, including plasma rotation and energetic particles, in resistive wall mode stability journal, August 2010

Kinetic effects of trapped energetic particles on stability of external kink modes with a resistive wall journal, March 2012

Plasma-Resistivity-Induced Strong Damping of the Kinetic Resistive Wall Mode journal, October 2014

Effects of plasma shear flow on the RWM stability in ITER journal, May 2015

Active Feedback Stabilization of Toroidal External Modes in Tokamaks journal, January 2000

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. I. Electromagnetic model journal, September 2000

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. II. Control analysis journal, January 2000

Active feedback stabilization of the resistive wall mode on the DIII-D device journal, May 2001

Closed-loop feedback of MHD instabilities on DIII-D † journal, February 2001

Resistive wall mode dynamics and active feedback control in DIII-D journal, September 2001

Resistive wall stabilization of high-beta plasmas in DIII–D journal, May 2003

Resistive wall mode stabilization with internal feedback coils in DIII-D journal, May 2004

Comprehensive control of resistive wall modes in DIII-D advanced tokamak plasmas journal, October 2009

Optimal control of tokamak resistive wall modes in the presence of noise journal, November 2003

Physical understanding of the instability spectrum and the feedback control of resistive wall modes in reversed field pinch journal, April 2011

Active control of the resistive wall mode with power saturation journal, January 2012

Synergetic effects of magnetic feedback and plasma flow on resistive wall mode stability in tokamaks journal, July 2014

Stabilization of resistive wall modes in tokamaks by drift kinetic effects combined with magnetic feedback journal, July 2015

Chapter 3: MHD stability, operational limits and disruptions journal, June 2007

MHD-Limits to Plasma Confinement journal, January 1984

Effects of thick blanket modules on the resistive wall modes stability in ITER journal, November 2010

Modelling resistive wall modes in ITER with self-consistent inclusion of drift kinetic resonances journal, February 2009

Effects of α particles on the resistive wall mode stability in ITER journal, July 2010

Control of resistive wall modes in tokamak plasmas journal, March 2014

Equilibrium and global MHD stability study of KSTAR high beta plasmas under passive and active mode control journal, January 2010

Feedback suppression of rotating external kink instabilities in the presence of noise journal, August 2008

A Kalman filter for feedback control of rotating external kink instabilities in the presence of noise journal, May 2009

Modeling of resistive wall mode and its control in experiments and ITER journal, May 2006

Multimachine Data–Based Prediction of High-Frequency Sensor Signal Noise for Resistive Wall Mode Control in ITER journal, November 2016

Identification of Vertical Instabilities in the JET Tokamak journal, June 2008

Improved plasma performance in tokamaks with negative magnetic shear
journal, February 1994

Resistive Wall Mode in Collisionless Quasistationary Plasmas
journal, September 2004

Resistive wall stabilized operation in rotating high beta NSTX plasmas
journal, April 2006

Reduced Critical Rotation for Resistive-Wall Mode Stabilization in a Near-Axisymmetric Configuration
journal, February 2007

Identification of a Low Plasma-Rotation Threshold for Stabilization of the Resistive-Wall Mode
journal, February 2007

Toroidal self-consistent modeling of drift kinetic effects on the resistive wall mode
journal, November 2008

The role of kinetic effects, including plasma rotation and energetic particles, in resistive wall mode stability
journal, August 2010

Kinetic effects of trapped energetic particles on stability of external kink modes with a resistive wall
journal, March 2012

Plasma-Resistivity-Induced Strong Damping of the Kinetic Resistive Wall Mode
journal, October 2014

Effects of plasma shear flow on the RWM stability in ITER
journal, May 2015

Active Feedback Stabilization of Toroidal External Modes in Tokamaks
journal, January 2000

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. I. Electromagnetic model
journal, September 2000

Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. II. Control analysis
journal, January 2000

Active feedback stabilization of the resistive wall mode on the DIII-D device
journal, May 2001

Closed-loop feedback of MHD instabilities on DIII-D ^†
journal, February 2001

Resistive wall mode dynamics and active feedback control in DIII-D
journal, September 2001

Resistive wall stabilization of high-beta plasmas in DIII–D
journal, May 2003

Resistive wall mode stabilization with internal feedback coils in DIII-D
journal, May 2004

Comprehensive control of resistive wall modes in DIII-D advanced tokamak plasmas
journal, October 2009

Optimal control of tokamak resistive wall modes in the presence of noise
journal, November 2003

Physical understanding of the instability spectrum and the feedback control of resistive wall modes in reversed field pinch
journal, April 2011

Active control of the resistive wall mode with power saturation
journal, January 2012

Synergetic effects of magnetic feedback and plasma flow on resistive wall mode stability in tokamaks
journal, July 2014

Stabilization of resistive wall modes in tokamaks by drift kinetic effects combined with magnetic feedback
journal, July 2015

Chapter 3: MHD stability, operational limits and disruptions
journal, June 2007

MHD-Limits to Plasma Confinement
journal, January 1984

Effects of thick blanket modules on the resistive wall modes stability in ITER
journal, November 2010

Modelling resistive wall modes in ITER with self-consistent inclusion of drift kinetic resonances
journal, February 2009

Effects of α particles on the resistive wall mode stability in ITER
journal, July 2010

Control of resistive wall modes in tokamak plasmas
journal, March 2014

Equilibrium and global MHD stability study of KSTAR high beta plasmas under passive and active mode control
journal, January 2010

Feedback suppression of rotating external kink instabilities in the presence of noise
journal, August 2008

A Kalman filter for feedback control of rotating external kink instabilities in the presence of noise
journal, May 2009

Modeling of resistive wall mode and its control in experiments and ITER
journal, May 2006

Multimachine Data–Based Prediction of High-Frequency Sensor Signal Noise for Resistive Wall Mode Control in ITER
journal, November 2016

Identification of Vertical Instabilities in the JET Tokamak
journal, June 2008