An 18.3 MJ charging and discharging pulsed power supply system for the space plasma environment research facility (SPERF): the subsystem for the magnetic mirror coil

E Peng; Guan Jian; Ma XunLing WenbinDeng WeijunDing MingjunKang ChuanhuiZhao JuanLi HongtaoTong WeimingLi Liyi

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An 18.3 MJ charging and discharging pulsed power supply system for the space plasma environment research facility (SPERF): the subsystem for the magnetic mirror coil

机译：An 18.3 MJ charging and discharging pulsed power supply system for the space plasma environment research facility (SPERF): the subsystem for the magnetic mirror coil

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The magnetic reconnection process relevant to that at the magnetotail is one of the research contents of the Space Plasma Environment Research Facility, which is under construction at the Harbin Institute of Technology in China. Two magnetic mirror sub-coils placed symmetrically in the vertical direction and connected in series cooperate with a dipole coil to generate a magnetic field environment similar to the Earth’s magnetotail. A capacitor-based pulsed power supply (PPS) system with a modular design is developed to excite two magnetic mirror sub-coils to generate a magnetic field with a magnetic flux density of not less than 200 G at the center of the two sub-coils. The PPS should deliver a pulsed current with a peak of more than 8 kA, and the duration of the current not be less than 95% of the peak over 5 ms to two magnetic mirror sub-coils when the charging voltage is not less than 20 kV. In addition, the duration from the peak to 10% of the peak is not more than 130 ms. The detailed design of the PPS is discussed in this paper, and a test method is designed to reduce the risk of damage to the wires and the connection between the wires and the coaxial cables of the PPS when the PPS discharges at a higher charging voltage. Finally, the discharge test of the PPS is carried out to verify the design of the PPS.

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来源
《Review of Scientific Instruments》 |2023年第4期|044710-1-044710-11|共11页
作者
E Peng; Guan Jian; Ma XunLing WenbinDeng WeijunDing MingjunKang ChuanhuiZhao JuanLi HongtaoTong WeimingLi Liyi;
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作者单位

Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology;

School of Electrical Engineering and Automation, Harbin Institute of Technology;

Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP;

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An 18.3 MJ charging and discharging pulsed power supply system for the space plasma environment research facility (SPERF): the subsystem for the magnetic mirror coil

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