Compact autonomous explosive-driven pulsed power system based on a capacitive energy storage charged by a high-voltage shock-wave ferromagnetic generator

Shkuratov, Sergey I.; Talantsev, E. F.; Baird, Jason; Altgilbers, L.L.; Stults, A.H.

doi:10.1063/1.2205157

Cited by 17 publications

(9 citation statements)

References 8 publications

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“…The initial electromagnetic energy of the FMG [5][6][7][8][9][10][11], W FMG , is equal to the initial magnetostatic energy of the Nd 2 Fe 14 B hard ferromagnetic element, W NdFeB :…”

Section: Fmg Analytical Model and Technique For Calculation Of Fmg Cumentioning

confidence: 99%

“…Two new types of miniature generators of primary power have recently been developed by Shkuratov et al [1][2][3][4][5][6][7][8][9][10][11]. These generators are powered by the chemical energy of high explosives.…”

Section: Introductionmentioning

confidence: 99%

“…The original basic idea of recently invented primary power sources of the second type [5][6][7][8][9][10][11] was to utilize magnetostatic energy stored exclusively in modern hard ferromagnetic materials possessing high energy products, (BH) max , instead of soft ferromagnetic materials possessing very high residual magnetization, B r , but extremely low coercive force, H (and correspondingly low energy product). These primary electrical sources are based on physical effects of longitudinal (shock wave propa- * corresponding author; e-mail: shkuratov@lokiconsult.com gates along the magnetization vector) [5] and transverse (shock wave propagates across the magnetization vector) [6][7][8][9][10][11] demagnetization of hard ferromagnetic energy--carrying elements by shock waves generated by high explosives.…”

Section: Introductionmentioning

confidence: 99%

“…These primary electrical sources are based on physical effects of longitudinal (shock wave propa- * corresponding author; e-mail: shkuratov@lokiconsult.com gates along the magnetization vector) [5] and transverse (shock wave propagates across the magnetization vector) [6][7][8][9][10][11] demagnetization of hard ferromagnetic energy--carrying elements by shock waves generated by high explosives. It was experimentally demonstrated that miniature explosively driven shock wave ferromagnetic generators (FMGs) containing Nd 2 Fe 14 B hard ferromagnetic elements possessing high (BH) max generate output currents with amplitudes up to 5 kA [6,7,9] and output voltages with amplitudes up to 50 kV [7,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…The shock-wave FMGs [5][6][7][8][9][10][11] contain Nd 2 Fe 14 B hard ferromagnetic energy elements, high explosive charges and pulse-generating coils wound on the Nd 2 Fe 14 B ferromagnets. Detailed description of the designs of longitudinal shock-wave FMGs can be found in [5] and transverse shock-wave FMGs in [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Analytical Model for Explosive-Driven Ultracompact Shock-Wave Ferromagnetic Generators

et al. 2009

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An analytical model of the operation of recently invented ultracompact explosive-driven shock-wave ferromagnetic generators that utilize longitudinal (shock wave propagates along the magnetization vector) and transverse (shock wave propagates across the magnetization vector) shock wave demagnetization of Nd2Fe14B hard ferromagnets, and an analytical technique for calculation of amplitudes of the current pulse produced by the generators were developed. The model utilizes the magnitude of the energy product, (BH)max, and the magnetostatic energy of the hard ferromagnetic element of the ferromagnetic generator as parameters for determining ferromagnetic generator pulse generation, and it does not consider the magnitude of remnant magnetization, B r , of the ferromagnetic material. The developed technique for calculation of the current pulse amplitude produced by the ferromagnetic generator provides comprehensive and accurate results. Amplitudes of calculated ferromagnetic generator output currents are in good agreement with experimentally obtained data.

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“…The initial electromagnetic energy of the FMG [5][6][7][8][9][10][11], W FMG , is equal to the initial magnetostatic energy of the Nd 2 Fe 14 B hard ferromagnetic element, W NdFeB :…”

Section: Fmg Analytical Model and Technique For Calculation Of Fmg Cumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analytical Model for Explosive-Driven Ultracompact Shock-Wave Ferromagnetic Generators

et al. 2009

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An explosively driven high-power microwave pulsed power system

Elsayed

Neuber

Dickens

et al. 2012

Review of Scientific Instruments

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The increased popularity of high power microwave systems and the various sources to drive them is the motivation behind the work to be presented. A stand-alone, self-contained explosively driven high power microwave pulsed power system has been designed, built, and tested at Texas Tech University's Center for Pulsed Power and Power Electronics. The system integrates four different sub-units that are composed of a battery driven prime power source utilizing capacitive energy storage, a dual stage helical flux compression generator as the main energy amplification device, an integrated power conditioning system with inductive energy storage including a fast opening electro-explosive switch, and a triode reflex geometry virtual cathode oscillator as the microwave radiating source. This system has displayed a measured electrical source power level of over 5 GW and peak radiated microwaves of about 200 MW. It is contained within a 15 cm diameter housing and measures 2 m in length, giving a housing volume of slightly less than 39 l. The system and its sub-components have been extensively studied, both as integrated and individual units, to further expand on components behavior and operation physics. This report will serve as a detailed design overview of each of the four subcomponents and provide detailed analysis of the overall system performance and benchmarks.

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Compact pulse generators with soft ferromagnetic cores driven by gunpowder and explosive

Chi

Pan

et al. 2015

Review of Scientific Instruments

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Compact pulse generators which utilized soft ferromagnets as an initial energy carrier inside multi-turn coil and hard ferromagnets to provide the initial magnetic field outside the coil have been studied. Two methods of reducing the magnetic flux in the generators have been studied: (1) by igniting gunpowder to launch the core out of the generator, and (2) by detonating explosives that demagnetize the core. Several types of compact generators were explored to verify the feasibility. The generators with an 80-turn coil that utilize gunpowder were capable of producing pulses with amplitude 78.6 V and the full width at half maximum was 0.41 ms. The generators with a 37-turn coil that utilize explosive were capable of producing pulses with amplitude 1.41 kV and the full width at half maximum was 11.68 μs. These two methods were both successful, but produce voltage waveforms with significantly different characteristics.

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Compact autonomous explosive-driven pulsed power system based on a capacitive energy storage charged by a high-voltage shock-wave ferromagnetic generator

Cited by 17 publications

References 8 publications

Analytical Model for Explosive-Driven Ultracompact Shock-Wave Ferromagnetic Generators

Analytical Model for Explosive-Driven Ultracompact Shock-Wave Ferromagnetic Generators

An explosively driven high-power microwave pulsed power system

Compact pulse generators with soft ferromagnetic cores driven by gunpowder and explosive

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