• High Power Laser and Particle Beams
  • Vol. 36, Issue 9, 095003 (2024)
Qisheng Li, Junna Li*, Chu’nan Li, Yongliang Wang..., Yuhan Gong and Jian Liu|Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Electrical Insulation of Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China
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    DOI: 10.11884/HPLPB202436.230218 Cite this Article
    Qisheng Li, Junna Li, Chu’nan Li, Yongliang Wang, Yuhan Gong, Jian Liu. Development of a MV level peaking capacitor integrated capacitor voltage divider[J]. High Power Laser and Particle Beams, 2024, 36(9): 095003 Copy Citation Text show less
    Structure diagram of peaking capacitor integrated capacitor voltage divider
    Fig. 1. Structure diagram of peaking capacitor integrated capacitor voltage divider
    Theoretical capacitance distribution analysis diagram of capacitive voltage divider
    Fig. 2. Theoretical capacitance distribution analysis diagram of capacitive voltage divider
    Circuit diagram of theoretical voltage division ratio simulation of capacitive voltage divider
    Fig. 3. Circuit diagram of theoretical voltage division ratio simulation of capacitive voltage divider
    Simulated square wave response waveform of two voltage probes
    Fig. 4. Simulated square wave response waveform of two voltage probes
    Schematic diagram of square wave calibration system
    Fig. 5. Schematic diagram of square wave calibration system
    Output waveform of square wave response
    Fig. 6. Output waveform of square wave response
    Schematic diagram of the experimental platform
    Fig. 7. Schematic diagram of the experimental platform
    Typical waveforms of high voltage online calibration
    Fig. 8. Typical waveforms of high voltage online calibration
    Voltage division ratio of the probes at different voltage levels
    Fig. 9. Voltage division ratio of the probes at different voltage levels
    Simulated electric field distribution of peaking capacitor
    Fig. 10. Simulated electric field distribution of peaking capacitor
    Schematic diagram of small air gap partial discharge
    Fig. 11. Schematic diagram of small air gap partial discharge
    Capacitance distribution of each layer structure before and after considering the influence of plasma
    Fig. 12. Capacitance distribution of each layer structure before and after considering the influence of plasma
    Schematic diagram of calibration experimental platform
    Fig. 13. Schematic diagram of calibration experimental platform
    probe numbercompensation resistance/kΩlow voltage arm capacitance/nFR1C2/μs
    1#2.3953.3438.2
    2#2.4124.84611.7
    Table 1. Measured value of low voltage arm capacitance and compensation resistor
    pulse width τR1C2/τflat top descent/%R1C2/τflat top descent/%
    1#2#
    10082.01.0117.00.8
    50016.45.123.43.7
    10008.210.011.76.6
    Table 2. Simulation results of voltage probe response to different pulse width signals
    probe numbersource signal leading time/nsmeasuring signal leading time/nsresponse time/nsvoltage division ratio
    1#12.0012.804.4513444
    2#11.5213.126.2817314
    Table 3. Response time and division ratio of two probes
    Marx main circuit charging voltage/kVpeak capacitance voltage measured by 1# probe/kVpeak capacitance voltage measured by 2# probe/kV2# probe actual measurement signal/V2# probe voltage division ratio2# probe average voltage division ratio
    30496.42495.2532.691518515283
    35583.03579.4238.251524215283
    40671.22666.0243.971526515283
    45779.68779.0251.231521915283
    48825.21806.3153.231550215283
    Table 4. Response time and division ratio of two probes
    Qisheng Li, Junna Li, Chu’nan Li, Yongliang Wang, Yuhan Gong, Jian Liu. Development of a MV level peaking capacitor integrated capacitor voltage divider[J]. High Power Laser and Particle Beams, 2024, 36(9): 095003
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