An Optimal Real-Time Controller for Vertical Plasma Stabilization Article Swipe
N. Cruz
,
J.-M. Moret
,
S. Coda
,
B.P. Duval
,
Hoang Le
,
A.P. Rodrigues
,
C. A. F. Varandas
,
Carlos Correia
,
B. Gonçalves
·
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.1109/tns.2015.2478965
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.1109/tns.2015.2478965
Modern Tokamaks have evolved from the initial axisymmetric circular plasma shape to an elongated axisymmetric plasma shape that improves the energy confinement time and the triple product, which is a generally used figure of merit for the conditions needed for fusion reactor performance. However, the elongated plasma cross section introduces a vertical instability that demands a real-time feedback control loop to stabilize the plasma vertical position and velocity. At the Tokamak \`a Configuration Variable (TCV) in-vessel poloidal field coils driven by fast switching power supplies are used to stabilize highly elongated plasmas. TCV plasma experiments have used a PID algorithm based controller to correct the plasma vertical position. In late 2013 experiments a new optimal real-time controller was tested improving the stability of the plasma. This contribution describes the new optimal real-time controller developed. The choice of the model that describes the plasma response to the actuators is discussed. The high order model that is initially implemented demands the application of a mathematical order reduction and the validation of the new reduced model. The lower order model is used to derive the time optimal control law. A new method for the construction of the switching curves of a bang-bang controller is presented that is based on the state-space trajectories that optimize the time to target of the system. A closed loop controller simulation tool was developed to test different possible algorithms and the results were used to improve the controller parameters. The final control algorithm and its implementation are described and preliminary experimental results are discussed.
Related Topics
Concepts
Control theory (sociology)
Controller (irrigation)
Tokamak
Plasma
Bang–bang control
Position (finance)
PID controller
Plasma actuator
Rotational symmetry
Plasma stability
Actuator
Physics
Optimal control
Control system
Computer science
Mechanics
Engineering
Mathematics
Temperature control
Control (management)
Quantum mechanics
Mathematical optimization
Thermodynamics
Artificial intelligence
Biology
Dielectric barrier discharge
Agronomy
Electrical engineering
Economics
Finance
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1109/tns.2015.2478965
- OA Status
- green
- Cited By
- 14
- References
- 40
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2082909613
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2082909613Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1109/tns.2015.2478965Digital Object Identifier
- Title
-
An Optimal Real-Time Controller for Vertical Plasma StabilizationWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2015Year of publication
- Publication date
-
2015-10-29Full publication date if available
- Authors
-
N. Cruz, J.-M. Moret, S. Coda, B.P. Duval, Hoang Le, A.P. Rodrigues, C. A. F. Varandas, Carlos Correia, B. GonçalvesList of authors in order
- Landing page
-
https://doi.org/10.1109/tns.2015.2478965Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://arxiv.org/pdf/1406.4436Direct OA link when available
- Concepts
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Control theory (sociology), Controller (irrigation), Tokamak, Plasma, Bang–bang control, Position (finance), PID controller, Plasma actuator, Rotational symmetry, Plasma stability, Actuator, Physics, Optimal control, Control system, Computer science, Mechanics, Engineering, Mathematics, Temperature control, Control (management), Quantum mechanics, Mathematical optimization, Thermodynamics, Artificial intelligence, Biology, Dielectric barrier discharge, Agronomy, Electrical engineering, Economics, FinanceTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
14Total citation count in OpenAlex
- Citations by year (recent)
-
2024: 3, 2022: 2, 2021: 1, 2020: 1, 2019: 1Per-year citation counts (last 5 years)
- References (count)
-
40Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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