A coaxial-output rolled strip pulse forming line based on multi-layer films

Su, Jiancang; Li, Rui; Cheng, Jie; Yu, Binxiong; Zhang, Xibo; Zhao, Linjie; Huang, Wenzhu

doi:10.1017/s026303461700091x

Cited by 11 publications

(1 citation statement)

References 12 publications

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“…The representative generators are Sinusseries [38] and RADAN [39]. Recent development about open-magnetic-core Tesla transformer-based generators include: multi-wire-layered secondary winding [40], [41], copper-titanium-composite primary wingding [42], magnetically insulation [43], low-impedance PFL [44], film-rolled coaxial PFL [45], PFN [46], [47], bipolar modulation [48].…”

Section: Tesla Transformer-based Circuitmentioning

confidence: 99%

Comprehensive Overview of Power Electronics Intensive Solutions for High-Voltage Pulse Generators

Zhuge,

Liang,

et al. 2024

IEEE Open J. Power Electron.

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With the advancements in power semiconductors and converters, power electronics based high-voltage pulse generators (HVPG) have emerged due to their advantages of high repetition rate, flexible control, long lifetime, and compact size. However, there is a lack of comprehensive literature review on recent advances in power electronics intensive HVPG technologies. To fill this gap, we present a systematic review on HVPGs. First, HVPGs are classified into different types based on their mechanisms. Each type along with its basic circuits and modifications are introduced. Then, the characteristics, advantages, and disadvantages of these topologies are summarized. Furthermore, the potential applications of HVPGs are explored. The performance of pulse generators mentioned in the literature and commercial products is listed. Finally, future trends and technical challenges in HVPG design and development are discussed. This paper provides a clear understanding of HVPGs and the inspiration of topologies developments to meet the specific requirements. Current state and potential future directions are discussed and summarized to facilitate evolvements in HVPG technology.INDEX TERMS Pulsed power supply, high voltage, pulse generator, power electronics.

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Section: Tesla Transformer-based Circuitmentioning

confidence: 99%

Comprehensive Overview of Power Electronics Intensive Solutions for High-Voltage Pulse Generators

Zhuge,

Liang,

et al. 2024

IEEE Open J. Power Electron.

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A quasi-coaxial HV rolled pulse forming line

et al. 2018

Review of Scientific Instruments

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A quasi-coaxial high-voltage (HV) rolled pulse forming line (rolled PFL) is researched in this paper. The PFL is rolled n circles on a support cylinder simultaneously by two layers of copper foil electrodes and two layers of insulation dielectrics. The first circle of the two electrodes are elicited in opposite directions along the axis, acting as the quasi-coaxial output structure of the PFL, and the left n − 1 circles of the PFL form a complete rolled strip line of n − 1 circles. The rolled PFL is convenient to realize HV insulation and is able to output a pulse with good quality. Characteristic parameters of the PFL are designed theoretically. Besides, the pulse discharge process of the PFL is simulated by computer simulation technology (CST) modeling, and the simulation result verifies the correctness of theory design. Furthermore, a rolled PFL with a characteristic impedance of 4.4 Ω is developed. The test characteristic impedance of the developed PFL by the incident pulse method confirms to the theory design. The discharge voltage waveform with a full width at half maximum of 57 ns of the PFL is acquired, which has a rise time of 6.8 ns. The HV test of the rolled PFL is carried out, and a discharge current pulse with an amplitude of 7 kA is acquired when the PFL is charged to 70 kV. It is calculated that the developed PFL has an energy storage density of 2.5 J/l. A Tesla generator based on 13 stages of rolled PFLs is designed, which is expected to output a 450 kV pulse with a duration of 100 ns on a 40-Ω match load. The discharge waveform of the generator is simulated by the CST software. The simulative output pulse has a rise time of 5 ns, with a flattop jitter less than 5%.

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Insulation improvement of an all-solid pulse forming line with film dielectric

et al. 2019

Review of Scientific Instruments

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A pulse forming line (PFL) cascaded in the radial direction by multistage rolled strip line units is put forward. With this method, the dielectric thickness of the rolled strip line unit is decreased. So, the reliability of the PFL under a high voltage will increase. At the same time, the difficulty for rolling the PFL will decrease. The factors affecting the pulse lifetime of the rolled PFL are analyzed by theory and simulation, and two improvement methods are put forward. First, the electric field enhance at the edges of the electrodes of the rolled PFL is so large that corona discharge occurs at these positions. The improvement method is to use the combination dielectric layer combined by corona-resistant polyimide (PI) films and polypropylene (PP) films as the dielectric of the rolled strip line unit. With this method, the normal electric field of the electrode edges is decreased. Besides, the corona resistance of the dielectric layer is much improved because the PI film has a good performance under corona discharge. Second, the positions where the output foils are located are the insulation weakness of the PFL because these positions are discontinuous. The improvement method is to increase the insulation thickness of these positions. A rolled PFL is cascaded by 3 stages of rolled strip lines, which has a charging voltage of 90 kV. According to the lifetime test, the pulse lifetime of the rolled PFL reaches 300 000 pulses, which is 100 times larger than the pulse lifetime of a rolled PFL without the improvement method.

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A coaxial-output rolled strip pulse forming line based on multi-layer films

Cited by 11 publications

References 12 publications

Comprehensive Overview of Power Electronics Intensive Solutions for High-Voltage Pulse Generators

Comprehensive Overview of Power Electronics Intensive Solutions for High-Voltage Pulse Generators

A quasi-coaxial HV rolled pulse forming line

Insulation improvement of an all-solid pulse forming line with film dielectric

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