Influence of distributed inductance on T-type protection charging circuit of pulse power supply

Fig. 5. Voltage waveform at both ends of charger T-protection circuit in the test with 10 m twisted pair, charging voltage 3 kV, charging current 25 A

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Fig. 6. Voltage waveform of 10 m coaxial cable

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Fig. 7. Voltage waveform of 22 m coaxial cable

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Fig. 8. 10 m Coaxial cable charging current 25 A experimental voltage waveform

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Table 1. Simulation results of two charging output cables with different lengths
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Table 1. Simulation results of two charging output cables with different lengths
twisted pair length/m inductance/μH charging voltage/kV voltage at both ends of T-protection circuit/kV overvoltage/kV
10 12.56 3 3.60 0.60
6 7.36 1.36
22 27.64 3 4.71 1.71
6 8.30 2.30

Table 2. Comparison of simulation data of coaxial cable experiment
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Table 2. Comparison of simulation data of coaxial cable experiment
coaxial cable length/m inductance/μH charging voltage/kV T-protection overvoltage/kV
simulation experiment
10 14 3 3.34 3.39
6 6.40 6.44
22 31 3 3.39 3.43
6 6.71 6.75

Table 3. Comparative statistical table of overvoltage at both ends of twisted pair and coaxial cable T-protection circuit

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Table 3. Comparative statistical table of overvoltage at both ends of twisted pair and coaxial cable T-protection circuit

cable type	inductance/μH	charging voltage/kV	voltage at both ends of T protection/kV	overvoltage/kV
10 m twisted pair	12.56	3	3.60	0.60
10 m coaxial cable	4.10		3.34	0.34
22 m twisted pair	27.64		4.71	1.71
22 m coaxial cable	9.03		3.39	0.39
10 m twisted pair	12.56	6	7.36	1.36
10 m coaxial cable	4.10		6.40	0.40
22 m twisted pair	27.64		8.30	2.30
22 m coaxial cable	9.03		6.71	0.71

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Yi Wang, Kai Huang, Zizhou Su, Sui Wang, Jie Yan. Influence of distributed inductance on T-type protection charging circuit of pulse power supply[J]. High Power Laser and Particle Beams, 2023, 35(2): 025004

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Paper Information

Category: Pulsed Power Technology

Received: Aug. 8, 2022

Accepted: --

Published Online: Feb. 16, 2023

The Author Email:

DOI:10.11884/HPLPB202335.220242

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Simulation results of two charging output cables with different lengths

Table 1. Simulation results of two charging output cables with different lengths

Table 2. Comparison of simulation data of coaxial cable experiment

Table 2. Comparison of simulation data of coaxial cable experiment

Table 3. Comparative statistical table of overvoltage at both ends of twisted pair and coaxial cable T-protection circuit

Table 3. Comparative statistical table of overvoltage at both ends of twisted pair and coaxial cable T-protection circuit