Overview of Pulsed Power Research at CAEP

Deng, Jianjun; Shi, Jing; Xie, Weiping; Zhang, Linwen; Shi, Feng; Li, Jin; Wang, Meng; Lianshen, Xia; Dai, Zhiyong; Li, Hongtao; Q, Li; Luo, Wen; Sifu, Chen; Li, Xin; Ziping, Huang; Qingui, Lai; Zhang, Kaizhi; Minghe, Xia; Guan, Yongchao; Songyi, Song; Lin, Changxing; Ji, Ce; Zhou, Lei; He, An; Zou, Wenkang; Huang, Xianbin; Zhou, Su-Qin; Zhang, Zhaohui; Zhang, Siqun; Ren, Xiaobing; Wei, Bing; Tian, Qing; Anmin, Yang; Li, Hong; Xie, Mei; Liu, Jinfeng; Ma, Cheng; Ma, Xingxiao; Wang, Wei; Wang, Guiji; Yang, Libing; Yuan, Gu; Yi, He; Li, Chenggang; Yiwei, Zhou; Zhang, Zhanji; Guangshen, Dai; Huacen, Wang; Chen, Nianan; Liu, Chengjun; Sun, Chengwei; Zhang, Xu; Fanbao, Meng; Hongke, Ma

doi:10.1109/tps.2015.2452192

Cited by 13 publications

(1 citation statement)

References 15 publications

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“…Based on the above design, and taking the development experience of a 1 MA single LTD stage platform and a 1 MV series LTD platform of our institute as references [15], the design scheme of the hybrid mode LTD stage is proposed as follows: (i) Each single Marx discharge branch has an open circuit voltage of about 300 kV, and the output voltage is about 150 kV on matched load. (ii) Each discharge branch has a four-stage Marx structure (m ¼ 4, i.e., four switches, eight capacitors), the first two switches are triggered, and the last two switches work in the overvoltage self-breakdown mode.…”

Section: Design Of Hybrid Mode Ltd Stagementioning

confidence: 99%

Development of a hybrid mode linear transformer driver stage

Zhang

Wang

Zhou

et al. 2018

Phys. Rev. Accel. Beams

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At present, the mainstream technologies of primary power sources of large pulse power devices adopt Marx or linear transformer driver (LTD) designs. Based on the analysis of the characteristics of these two types of circuit topologies, the concept of a hybrid mode LTD stage based on Marx branches is proposed. The analysis shows that the hybrid mode LTD stage can realize the following goals: (a) to reduce the energy and power handled by the basic components (switch and capacitor) to lengthen their lifetime; (b) to reduce the requirements of the multipath synchronous trigger system; and (c) to improve the maintainability of the LTD stage by using independent Marx generators instead of "traditional LTD bricks." To verify the technique, a hybrid mode LTD stage consisting of 50 branches (four-stage compact Marx generators) was designed, manufactured and tested. The stage has a radius of about 3.3 m and a height of 0.6 m. The single Marx circuit's load current is about 21 kA, with a rise time of ∼90 ns (10%-90%), under the conditions of capacitors charged to AE40 kV and a 6.9 Ω matched load. The whole stage's load current is ∼1 MA, with a rise time of ∼112 ns (10%-90%), when the capacitors are charged to AE45 kV and the matched load is 0.14 Ω.

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Section: Design Of Hybrid Mode Ltd Stagementioning

confidence: 99%

Development of a hybrid mode linear transformer driver stage

Zhang

Wang

Zhou

et al. 2018

Phys. Rev. Accel. Beams

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Inertial Confinement Fusion—Major Facilities

Finnegan

2021

Encyclopedia of Nuclear Energy

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Recent advances in compact repetitive high-power Marx generators

Song

Zhang

et al. 2019

Laser Part. Beams

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This paper introduces recent activities on Marx-based compact repetitive pulsed power generators at the Institute of Applied Electronics (IAE), China Academy of Engineering Physics (CAEP), over the period 2010–2018. A characteristic feature of the generators described is the use of a simplified bipolar charged Marx circuit, in which the normal isolation resistors or inductors to ground are removed to make the circuit simpler. Several pulse-forming modules developed to generate a 100 ns square wave output are introduced, including thin-film dielectric lines of different structures, a pulse-forming line based on a Printed Circuit Board, and non-uniform pulse-forming networks. A compact repetitive three-electrode spark gap switch with low-jitter, high-voltage, and high-current was developed and is used in the generators. A positive and negative series resonant constant current power supply with high precision and high power is introduced. As an important part of the repetitive pulse power generator, a lower jitter pulse trigger source is introduced. Several typical high-power repetitive pulsed power generators developed at IAE are introduced including a 30 GW low-impedance Marx generator, a compact square-wave pulse generator based on Kapton-film dielectric Blumlein line, a 20 GW high pulse-energy repetitive PFN-Marx generator, and a coaxial Marx generator based on ceramic capacitors. The research of key technologies and their development status are discussed, which can provide a reference for the future development and application of miniaturization of compact and repetitive Marx generators.

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Overview of Pulsed Power Research at CAEP

Cited by 13 publications

References 15 publications

Development of a hybrid mode linear transformer driver stage

Development of a hybrid mode linear transformer driver stage

Inertial Confinement Fusion—Major Facilities

Recent advances in compact repetitive high-power Marx generators

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