Detailed design, fabrication and testing of an engineering prototype compensated pulsed alternator. Final report

Bird, W. L.; Woodson, H.H.

doi:10.2172/5405133

Cited by 2 publications

(3 citation statements)

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“…However, the difficulty of rapid recycle operation of large capacitor banks would make this an untenable scenario at repetition rates of a few hertz or more. In this context, it is interesting to note that a new concept is currently under development for generating pulsed power with high energy per shot and high repetition rates [27]. This is based on a compensated pulsed alternator ('compulsator'), which embodies a novel operating principle of compensated inductance and overcomes the inherent limitation of AC machines as pulse generators.…”

Section: Conclusion: Advantages Uncertainties and Applications Of Ct ...mentioning

confidence: 99%

Deep penetration fuelling of reactor-grade tokamak plasmas with accelerated compact toroids

Perkins

Hammer

1988

Nucl. Fusion

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The application of a novel but practical technique for central fuelling of reactor-grade tokamak plasmas by compact torus (CT) plasma rings driven by a coaxial accelerator is examined. It is emphasized that this is the only advanced method of controlled and localized deep penetration fuelling which can be developed in the near term and which is already applied in a currently operating experimental system. Assessment of the dynamics of the CT as it traverses the plasma requires quantification of several interrelated constraints, including ring decay, tilting, field line reconnection, deceleration in the external field gradient and ring expansion/contraction. A self-consistent, radial zoning scheme is employed to model the transport of the CT to the desired plasma deposition point. It is demonstrated that the injection velocity requirements are usually dominated by CT tilting and reconnection with the external toroidal field of the tokamak. The implications for CT fuel transport around the reconnection point are then examined. The application of this formalism to the TIBER Engineering Test Reactor permits the parameterization of fuelling requirements in terms of injection velocity, fuel mass, penetration distance, CT dimensions and repetition rate. The hardware implications for near-term applications are also assessed.

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Section: Conclusion: Advantages Uncertainties and Applications Of Ct ...mentioning

confidence: 99%

Deep penetration fuelling of reactor-grade tokamak plasmas with accelerated compact toroids

Perkins

Hammer

1988

Nucl. Fusion

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“…Hughes and Miller [2], Bird and Woodson [3], and Parekh [4] address the inductances of two-dimensional coil sections of interest (partial sectors) in pulsed power generators utilizing radial fields for generation. Hughes and Miller [2] derived expressions for the inductances of partial sectors.…”

Section: Introductionmentioning

confidence: 99%

“…Their results presented in a tabular form are not readily adaptable for parametric analyses. Bird and Woodson [3] and Parekh [4] have presented expressions for similar inductances which are amenable to parametric evaluations. But they have made the following simplifying assumptions in their analyses, specific for their application, limiting general validity: (1) the source is described by current sheets with sinusoidal distribution, (2) the azimuthal magnetic field has been assumed to be zero at the radius of the rotor, and (3) the radial magnetic field has been assumed to be zero at the outer radius of the stator.…”

Section: Introductionmentioning

confidence: 99%

Analytical series expressions for the self- and mutual inductances of two-dimensional coils in the form of partial sectors

Thiagarajan

2003

IEEE Trans. Magn.

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, Pulsed power generators of the drum type utilize radial components of magnetic fields created by field coils located on a rotor to induce voltage on stator coils located at larger radii. Conventionally, two-dimensional field analyses are used, and further, the field is expressed as a harmonic series and the fundamental part of the radial field is used for initial designs. Analytical series expressions for two-dimensional potentials and fields are utilized in this paper to derive analytical series expressions for the self-inductances and mutual inductances between the rotor and stator coils in the shape of partial sectors. The magnitudes of higher order terms are compared with that of the fundamental component. The effects of parameters such as the aspect ratios of conductor sections on the inductances and coupling constants are evaluated.

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Detailed design, fabrication and testing of an engineering prototype compensated pulsed alternator. Final report

Cited by 2 publications

References 0 publications

Deep penetration fuelling of reactor-grade tokamak plasmas with accelerated compact toroids

Deep penetration fuelling of reactor-grade tokamak plasmas with accelerated compact toroids

Analytical series expressions for the self- and mutual inductances of two-dimensional coils in the form of partial sectors

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