New Design and Construction of High-Voltage High-Current Pseudospark Switch

Lateef, Kamal H.; Hamad, B. H.; Ahmad, Ahmad K.

doi:10.1109/tps.2014.2379702

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Assuming that the surface of conductor is equipotential, the capacitance of two conductors may be calculated by Equation (1). The integral path defines the distance of the capacitor plates, as shown in Figure 1(a), and the capacitance may be determined by an elementary unit of area, as shown in Figure 1(b).…”

Section: Analysis Of Static Capacitance Integral Path Between Conductorsmentioning

confidence: 99%

“…The frequency and power density of power devices are improving with the rapid development of power electronics technology [1]. Inductor, as one of the key components in power electronics system, has important applications in electric vehicles [2], DC power transmission [3], pulse power application [4], electromagnetic detection measurement [5,6], etc.…”

Section: Introductionmentioning

confidence: 99%

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An Improved Calculation Method for Static Capacitance in Inductor Windings

Du¹,

Zhang²,

Wang³

et al. 2020

PIER C

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This paper proposes an improved method for calculating static capacitance between two conductors with circular cross-sections in inductor windings. It considers the effects of electric field coupling and energy distribution on static capacitance. In this paper, the capacitance between two conductors in inductor windings is calculated by the improved calculation method and finite-element method (FEM), respectively. The relative error of the improved calculation method is between 0.11% and 4.51% compared to the FEM. In order to verify the effectiveness of this method for inductor winding, the orthogonal stacking winding and staggered stacking winding are chosen as calculation examples to accurately predict the static capacitance of multi-layer circular-section induction coils. Finite element models for the two types of windings are built to determine the capacitances for our 3 × 3 array arrangement winding. The results show that the improved calculation method proposed in this paper highly conforms to FEM. Finally, we adopt an air-cored cylindrical inductor winding for experimental verification, and the improved calculation method is proved to be correct.

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Section: Analysis Of Static Capacitance Integral Path Between Conductorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Improved Calculation Method for Static Capacitance in Inductor Windings

Du¹,

Zhang²,

Wang³

et al. 2020

PIER C

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show abstract

“…However, it is difficult for solid-state switches to meet the electrical requirements when dealing with the power crowbar system for plasma research. Pseudopark switch [18][19][20] can conduct high voltages up to tens of kilovolts and high currents of hundreds of kiloamperes, and has a high current rise rate, exhibiting nanosecond jitter, which is an ideal choice for power crowbar system.…”

Section: Introductionmentioning

confidence: 99%

High-voltage and high-current crowbar system based on pseudospark switches: from system design to verification

et al. 2020

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This paper presents a high-voltage and high-current crowbar system using pseudospark switches to produce a fast front edge and prolonged pulse current with low ripple amplitude. The crowbar system mainly consists of a main switch, a crowbar switch, an energy storage capacitor, and an inductive load. The basic parameters of the pseudospark switch crowbar system: the storage capacitance is 5 µF, the typical operation voltage is 30 kV, the peak discharge current is about 46.2 kA, the rise time is 4.3 µs, and the pulse duration time is approximately 109 µs, which is nearly 25 times of the rise time. In this paper, we report the timing setting for crowbar system. Experimental results show that crowbar timing should be set slightly after first current maximum, which has a great advantage of increasing the time scale without any reduction in the loss-free peak current. In addition, the pulse current characteristics are also studied. In the research, crowbar inductance L c and crowbar resistance R c have significant effects on the ripple amplitude and load current amplitude of pulse current. The experimental results also show that the crowbar current I c can reach nearly twice of the coil load current I load with low crowbar inductance L c . The over-current capacity of the crowbar switch needs to be greater than that of the main switch. The experimental results in this paper can be used to optimize the inductive load current in high-voltage and high-current crowbar system. K: Pulsed power; Plasma generation (laser-produced, RF, x ray-produced)1Corresponding author.

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“…Plasma is defined as , the 'fourth state of matter',is an electrically neutral ionized gas (quasi-neutral) and contains a significant number of free electrically charged particles, these free electrically charged particles make electrically conductive [1]. DC Pseudo Plasma Discharge is a special type of discharge in which the plasma is performed using a bulk cathode and mesh anode, where the discharge (plasma) takes place behind the mesh anode [2][3][4]. Cold (non-thermal) plasma is become one of common technique which used in surface modification of materials specially the textile surface as it is found that most textile materials are heat sensitive polymer [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

AFM and SEM analysis of polystyrene Surface Treated by DC Pseudo Plasma Discharge

et al. 2019

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I N THIS work, the surface treatment of polystyrene using the DC Pseudo-Plasma is studied. First, the DC Pseudo-plasma was employedas a function of plasma device parameters under different operating conditions including time (t) (30 s), current (I) (15mA), distance (d) (3 mm) between inter-electrodes, mesh anode transparency (T) (19%), distance between the polystyrene sample and the mesh anode (D) (2mm) and air pressure in plasma exposuring system (P) (2 torr). The best optimization of these parameters were performed by the water absorbency, which supported by the Scanning Electron Microscope (SEM) test Atomic Force Microscope (AFM) test.

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New Design and Construction of High-Voltage High-Current Pseudospark Switch

Cited by 7 publications

References 8 publications

An Improved Calculation Method for Static Capacitance in Inductor Windings

An Improved Calculation Method for Static Capacitance in Inductor Windings

High-voltage and high-current crowbar system based on pseudospark switches: from system design to verification

AFM and SEM analysis of polystyrene Surface Treated by DC Pseudo Plasma Discharge

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