Design of compact Marx module with square pulse output

Liu, Hongwei; Xie, Weiping; Yuan, Jianhua; Wang, Lingyun; Ma, Xingxiao; Jiang, Ping

doi:10.1063/1.4958644

Cited by 9 publications

(1 citation statement)

References 9 publications

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“…Figure 2.1. High repetition rate Marx pulse generator circuit topology Consistent with the working principle of traditional Marx pulse generators, the basic working principle of lightweight and heavy frequency Marx pulse generators is also to charge energy storage capacitors in parallel and discharge them in series [8,9] . The multi-stage energy storage capacitor quickly charges to the same potential through a charging diode, and then controls the main switch to conduct synchronously, achieving high-voltage pulse output.…”

Section: Topology and Working Principle Of High Repetition Frequency ...mentioning

confidence: 99%

Research on Transformer Multiple Fault Detection Based on Pulse Coupled Injection

Jin,

Liu,

Cai

et al. 2024

J. Phys.: Conf. Ser.

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The fault diagnosis method of winding deformation based on pulse coupling injection is becoming more and more popular due to its advantages of online detection. In order to further improve the method, a pulse generator with adjustable parameters is developed in this paper to provide stable excitation. Its amplitude is adjustable from 600v to 5000v, pulse width is adjustable from 100 to 1000ns, and frequency is adjustable from 1 to 20kHz. In the diagnosis of winding deformation, the current research mainly focuses on the single deformation fault, and rarely involves the mixed deformation fault. Therefore, based on the pulse coupling injection method, field experiments are carried out to verify the feasibility of the method and find out the important reasons affecting the curve. At the same time, the detection experiment of multi-winding deformation fault superposition of a transformer is carried out, and the RVM frequency divider is used to accurately diagnose the mixed fault types of transformer windings.

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Section: Topology and Working Principle Of High Repetition Frequency ...mentioning

confidence: 99%

Research on Transformer Multiple Fault Detection Based on Pulse Coupled Injection

Jin,

Liu,

Cai

et al. 2024

J. Phys.: Conf. Ser.

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Development and testing of a three-section pulse-forming network and its application to Marx circuit

Song

Zhang

et al. 2019

Laser Part. Beams

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A three-section pulse forming network (PFN) based on Guillemin type-C circuit was developed to meet the challenge of a compact design, high withstand voltage, and high-quality output waveform with fast rise time, flat-top duration, and 100-ns pulse width. A simplified pulse forming circuit was proposed and studied that includes only three LC-sections connected in parallel, with each section containing an inductor and a capacitor connected in series. The effect of the capacitance deviation on the output waveform was investigated. The simulation results show that when the capacitance deviation exceeds +3%, both the flat top and fall time of the output waveform of single PFN module deteriorate greatly. Fortunately, in a multi-stage PFN-Marx circuit, even if the capacitance deviation exceeds +10%, when the average capacitance of the same LC sections is close to the theoretical value, the output waveform maintains a good quality and is in good agreement with the theoretical prediction. The compact three-section PFN developed during this project has a size of only 360 mm × 342 mm × 65 mm, and a maximum withstand voltage of 120 kV. Sixteen PFN stages were assembled to form a Marx generator with design parameters to provide of an output peak power of 12 GW and a maximum peak current of 15 kA. The tested output waveform agrees well with the theoretical results, having a rise time of 31 ns, a flat-top of 104 ns, and a pulse with of 164 ns.

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A novel compact low impedance Marx generator with quasi-rectangular pulse output

Liu¹,

Jiang²,

Yuan³

et al. 2018

Review of Scientific Instruments

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In this paper, a novel low impedance compact Marx generator with near-square pulse output based on the Fourier theory is developed. Compared with the traditional Marx generator, capacitors with different capacity have been used. It can generate a high-voltage quasi-rectangular pulse with a width of 100 ns at low impedance load, and it also has high energy density and power density. The generator consists of 16 modules. Each module comprises an integrative single-ended plastic case capacitor with a nominal value of 54 nF, four ceramic capacitors with a nominal value of 1.5 nF, a gas switch, a charging inductor, a grounding inductor, and insulators which provide mechanical support for all elements. In the module, different discharge periods from different capacitors add to the main circuit to form a quasi-rectangular pulse. The design process of the generator is analyzed, and the test results are provided here. The generator achieved pulse output with a rise time of 32 ns, pulse width of 120 ns, flat-topped width (95%-95%) of 50 ns, voltage of 550 kV, and power of 20 GW.

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Design of compact Marx module with square pulse output

Cited by 9 publications

References 9 publications

Research on Transformer Multiple Fault Detection Based on Pulse Coupled Injection

Research on Transformer Multiple Fault Detection Based on Pulse Coupled Injection

Development and testing of a three-section pulse-forming network and its application to Marx circuit

A novel compact low impedance Marx generator with quasi-rectangular pulse output

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