Advanced concepts for electromagnetic launcher power supplies incorporating magnetic flux compression

Advanced concepts of high-energy power supplies for coil launchers are presented. These concepts are designed to produce high inductive compressive ratios and large current and magnetic field multiplication ratios in the range of megamperes of current and gigawatts of active power. As a consequence...

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Bibliographic Details
Published in:IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) 1991-01, Vol.27 (1), p.350-355
Main Authors: Driga, M.D., Fair, H.D.
Format: Article
Language:English
Subjects:
430100 - Particle Accelerators- Design, Development, & Operation
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700430 - Fusion Technology- Magnet Coils & Fields- (1992-)
700440 - Fusion Technology- Power Supplies, Energy Storage- (1992-)
ACCELERATION
ACCELERATORS
Armature
Coils
COMPRESSION
COMPUTER CODES
ELECTRIC COILS
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
Electromagnetic launching
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EMP radiation effects
FINITE ELEMENT METHOD
MAGNET COILS
MAGNETIC COMPRESSION
MAGNETIC FIELDS
MAGNETIC FLUX
NUMERICAL SOLUTION
OPTIMIZATION
Output feedback
PARTICLE ACCELERATORS
PINCH EFFECT
PLASMA ACCELERATION
PLASMA GUNS
POWER SUPPLIES
PROJECTILES
Pulse amplifiers
Pulse generation
Pulse shaping methods
PULSES
RADIATIONS
ROTATING GENERATORS
VELOCITY
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Description
Summary:Advanced concepts of high-energy power supplies for coil launchers are presented. These concepts are designed to produce high inductive compressive ratios and large current and magnetic field multiplication ratios in the range of megamperes of current and gigawatts of active power. As a consequence of the flexibility of multiwinding rotating generators, such designs provide an extensive range of output pulse shaping in single or multiple pulses, enabling optimum operation of the coil launcher. The interaction of different stationary and rotating electrical windings in strong magnetic fields with feedback generated amplification and nonuniform compensation of the armature reaction is the key to providing a large and flexible spectrum of tailored output pulses, eliminating the need for switching and other large external electromagnetic pulse-forming components. Dynamic interactions between the internal impedance of these generators and the induced electromotive forces in various windings, as well as the role of the external passive circuit components introduced in the launcher circuit (such as capacitors and inductors), are discussed and numerically evaluated. Finally, an adaptive finite-element method numerical code is described. This code takes into account the relative motion and is designed to evaluate machines incorporating flux compression.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.101055