Tokamaks are a leading candidate for solving the nuclear fusion problem of confining a plasma with sufficiently high density and temperature. This book offers a current and comprehensive treatment of control in tokamak-generated magnetic fields.

this part is supported by two useful appendices on some of the mathematical tools used and the physical units of plasma physics. State-space models, state observers, H control, and process simulations are some of the familiar techniques used by ? the authors to meet the demanding spatial control specifications for these processes; however, the research reported in the monograph is more that just simulation studies and proposals for possible future hypothetical controllers, for the authors have worked with some of the world's leading existing tokamak facilities. Chapter 5, 8, and 9 respectively, give practical results of implementations of their control schemes on the FTU Tokamak (Italy), the TCV Tokamak (Switzerland), and the JET Tokamak (United Kingdom). Additionally, the authors present simulation results of their ideas for the control of the new tokamak proposed for the ITER project. In conclusion, being very aware that most control engineers will not be conversant with the complexities of tokamak nuclear fusion reactor control, the authors have taken special care to give a useful introduction to the background of nuclear fusion, the science of plasma physics and appropriate models in the first part of the monograph (Chapters 1 to 3). This introduction is followed by six chapters (4 to 9) of control studies. In Chapter 4, the generic control problem is established and then five case study chapters follow.

Gives the reader a comprehensive and up-to-date treatment of control in tokamak-generated magnetic fields Co-ordinated and self-contained presentation will save the reader time in literature searches and tying together scattered results from disparate research papers on tokamak control Commissioning of new tokamak reactors in the near future will make this book of significant importance Includes supplementary material: sn.pub/extras

Autorentext

Marco Ariola was born in Naples, Italy, in 1971. He received the Laurea degree in electronic engineering and the Research Doctorate degree in electronic engineering and computer science from the University of Naples Federico II, Naples, Italy, in 1995 and 2000, respectively. From 1996 to 2005 he was with the Department of Computer and Systems Engineering of the University of Naples Federico II. Currently, he is a full Professor of Automatic Control at the University of Naples Parthenope in the Engineering Department. From September 1998 to February 1999, he was a Visiting Scholar with the Department of Electrical & Computer Engineering of University of New Mexico, Albuquerque, NM, USA. His research interests include statistical control, robust control, control of nuclear fusion devices, control of aerospace systems. He has published more than 150 journal papers, conference papers, articles in books and encyclopedias. He is co-author of the books "Magnetic Control of Tokamak Plasmas" and "Finite-Time Stability and Control" published by Springer in 2008 and 2013. He is a senior member of the IEEE. Professor Alfredo Pironti received the Laurea degree cum Laude in Electronic Engineering, and the PhD in Electronic and Computing Engineering from the University of Naples Federico II in 1991 and 1995, respectively. Since 1991 he works at the University of Naples Federico II, where he currently is a Full Professor of System and Control Theory in the Department of Electrical and Information Technology Engineering. He has spent several periods as visiting researcher at the Max Planck Institute for Plasma Physics in Garching (Germany), the Center for Control Engineering and Computation (University of California at Santa Barbara), the ITER Joint Work Site of Naka (Japan), and the EFDA-JET site of Culham (UK). His research interests include application of feedback control to nuclear fusion problems, robust control of uncertain systems, and differential games theory. In 2005 Alfredo Pironti has been guest editor for the IEEE Control Systems Magazine journal, where he has contributed to two special issues focused on the control of plasmas in tokamak machines. In 2008 he has co-authored the book "Magnetic Control of Tokamak Plasmas" published by Springer. He contributes to the IEEE CSS Technical Committee on Power Generation, co-chairing the thrust on Nuclear Energy Generation. He is author of more than 200 papers published on international journals, books, and conference proceedings.

Klappentext

The problem of confining a plasma, with sufficiently high density and temperature, is of crucial importance if nuclear fusion is to be made usable as a form of power generation. Tokamaks devices with a toroidal geometry are among the most popular candidates by which such confinement can be achieved. A tokamak separates a plasma from its surroundings by means of a magnetic field generated by several coils distributed around the plasma.

The main topic of Magnetic Control of Tokamak Plasmas is the design of feedback control systems guaranteeing the stability of plasma equilibrium inside a tokamak and the regulation of the plasma position and shape during plasma pulses. Modelling and control details are presented, allowing the non-expert to understand the control problem. Starting from equations of magneto-hydro-dynamics, all the steps needed for the derivation of plasma state-space models are enumerated. The basics of electromagnetics are frequently recalled. The control problem is then described beginning with control of current and position vertical and radial and progressing to the more challenging shape control. The solutions proposed vary from simple PIDs to more sophisticated MIMO controllers.

Wherever possible, the various topics are rounded out with results obtained through the authors' contributions to experiments with actual tokamaks. Mathematical details which are outside the normal province of control engineers are presented in an appendix for the interested reader.

The ideas formulated in this monograph will be of great practical help to control engineers, academic researchers and graduate students working directly with problems related to the control of nuclear fusion. They will also stimulate control researchers interested more generally in the advanced applications of the discipline.

Inhalt
Plasma Modelling.- Plasma Modelling for Magnetic Control.- The Plasma Boundary and its Identification.- Plasma Control.- Plasma Magnetic Control Problem.- Plasma Position and Current Control at FTU.- Plasma Vertical Stabilization.- Plasma Shape Control for ITER.- Plasma Shape Control at TCV.- Plasma Shape Control at JET.