Some future directions for repetitive pulsed power

Buttram, M.T.

doi:10.1109/tps.2002.1003869

Cited by 27 publications

(6 citation statements)

References 3 publications

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“…The direct discharge type, pulse transformer type, Marx generator type, and vector inversion type are the four basic capacitive energy storage HVPPS topologies that are used in current designs [1][2][3][4][5][6][7]. A comprehensive comparison of these four topologies is presented in [1].…”

Section: Current Technologymentioning

confidence: 99%

“…The difference between the two categories is found in the pulse width. Whilst typical reactive element based topologies are capable of producing pulses that last for hundreds of microseconds, the practical pulse width of transmission line based topologies is limited to a few microseconds [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Industrial applications such as food processing and electric fencing systems; medical instruments such as X-ray machines and defibrillators; military appliances such as radar systems and active denial technology (ADT) and also scientific applications such as particle accelerators and ion implantation systems are just a few examples [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Multi-Level High Voltage Pulsed Power Generator

Thrimawithana

Madawala

2007

2007 7th International Conference on Power Electronics and Drive Systems

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This paper presents a novel solid-state and high power pulse generation technique that is suitable for a wide range of pulsed power applications. The technique, termed as multi-level pulsed power converter, can be considered as a hybrid of the direct discharge type and the Marx generator but with considerably less complexity in both control and circuitry. It has the ability for generating pulses with flexible amplitude and duration similar to that of a Marx generator, and unlike the direct discharge type requires no voltage balancing and snubbing circuitry. As voltage balancing is inherent to the technique, the timing between switching events is not critical to balance the voltage stresses and as such the driving circuitry of the converter is relatively simple. The validity of the proposed technique is verified by presenting both theoretical analysis and simulation results of a 3-stage, 3 kV converter.

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Section: Current Technologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel Multi-Level High Voltage Pulsed Power Generator

Thrimawithana

Madawala

2007

2007 7th International Conference on Power Electronics and Drive Systems

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“…Although coaxial pulsed power apparatuses are widespread, researches on discharge characteristic over transformer oil/solid interfaces under nanosecond pulsed coaxial field, as opposed to discharge characteristic over gas/solid or vacuum/solid interfaces under uniform field, are less, which can't meet the rapid development of pulsed power technology [1][2][3][4][5][6][7]. Surface flashover, whether applied dc, ac or impulse voltages, are closely relevant to potential distribution gradient along interfaces between different dielectrics.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Gap Length on Flashover Under Nanosecond Pulsed Coaxial Electric Field

Huang

Sun

2009

2009 Asia-Pacific Power and Energy Engineering Conference

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Under nanosecond pulsed coaxial electric field, surface flashover voltage over the interfaces between nylon 1010 and transformer oil increases almost linearly with gap length, and the steeper rising edge of applied pulse, the higher flashover voltage. Surface flashover properties are closely related to the electric field at the triple junctions of solid-liquid-electrode and the field gradient along the interfaces. Although the increased difference between inner and outer electrode radii will enhance electric field strength at the triple junctions and nonuniformity degree of potential distribution along interfaces, it reduces simultaneously terribly the surface field strength of coaxial inner electrode, so that flashover voltage doesn't descend, but ascends almost linearly with gap length. The average flashover strength in coaxial electric field can be estimated by that in uniform electric field for large enough difference between inner and outer electrode radii, which is useful to practical engineering design for coaxial pulsed power apparatuses.

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“…So systems since the system size is strongly driven by the called ceramic loaded polymer dielectric employed in a storage voltage. [2] Modest pulse shaping can be Blumlein line facilitates the fabrication of a compact pulse accomplished with Marx banks by the inclusion or forming line potentially suitable for driving loads of several reduction of inductance between stages. Typically large tens of Ohms in the GW power range for greater than 100 rep-rate systems will incorporate a pulse forming line ns.…”

mentioning

confidence: 99%

A Ceramic Loaded Polymer Blumlein Pulser for Compact, Rep-Rated Pulsed Power Applications

Domonkos

Turchi

Parker

et al. 2005

2005 IEEE Pulsed Power Conference

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lesser extent rejecting waste heat in high duty rep-rated systems.The design of compact pulsed power systems involves In cases where the desired output voltage is greater the trade between size, pulse length, and pulse shape. A than 100-kV, a Marx topology, a pulse transformer, or stacked Blumlein line with high dielectric constant material some combination of both is used to scale the voltage can deliver a voltage flattop to a matched load with an delivered by the power supply.[4] For compact pulse energy density similar to capacitor banks. By imbedding generators, the Marx topology is more commonly used nano-scale titanate particles in an epoxy matrix, a since it reduces sub-system count by combining the energy composite material with a relative permittivity in the range storage and power scaling sub-systems. [4,5] Voltage of 30 to 60 may be realized without the drastic loss in scaling is an essential function of compact pulsed power dielectric strength associated with large area ceramics. So systems since the system size is strongly driven by the called ceramic loaded polymer dielectric employed in a storage voltage.[2] Modest pulse shaping can be Blumlein line facilitates the fabrication of a compact pulse accomplished with Marx banks by the inclusion or forming line potentially suitable for driving loads of several reduction of inductance between stages. Typically large tens of Ohms in the GW power range for greater than 100 rep-rate systems will incorporate a pulse forming line ns. This paper describes the initial efforts to fabricate and (PFL) to shape the pulse, whereas, compact systems may test a parallel plate Blumlein incorporating ceramic loaded use a Marx pulse forming network (PFN) topology to polymer dielectric.Two single-stage parallel plate address pulse shaping. While PFLs deliver very high Blumlein lines were fabricated with different ceramic quality voltage flat-tops to matched loads, they seldom lend loading. The lines were designed to yield a 50 ns pulse into themselves to compact designs. Conversely, the flexibility a 6.25 Q load. The Blumlein lines were designed to be to tune a PFN for a load generally competes with the desire charged to 62.5 kV, and both fabricated units held the to make a compact system, and a network increases the part charge voltage in static tests. A small railgap switch was count. Solid dielectric pulse forming lines have the fabricated for use with the Blumlein lines. A mid-plane potential to store pulse energy. The PFL may also be knife-edge electrode was used to trigger the switch. The stacked similarly to a Marx bank to facilitate voltage results of the tests are presented along with projections for scaling of the output. [4,6] For common dielectrics the the future development of this technology. resulting PFL suffers from a poor energy storage density compared with other options for many compact pulsed

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Some future directions for repetitive pulsed power

Cited by 27 publications

References 3 publications

A Novel Multi-Level High Voltage Pulsed Power Generator

A Novel Multi-Level High Voltage Pulsed Power Generator

The Influence of Gap Length on Flashover Under Nanosecond Pulsed Coaxial Electric Field

A Ceramic Loaded Polymer Blumlein Pulser for Compact, Rep-Rated Pulsed Power Applications

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