Guan Jian, E Peng, Mao Aohua, Ma Xun, Jin Chenggang, Deng Weijun, Ding Mingjun, Li Songjie, Kang Chuanhui, Xiao Jinshui, Tong Weiming, Li Hongtao
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China.
Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China.
Rev Sci Instrum. 2021 Sep 1;92(9):094706. doi: 10.1063/5.0056409.
The mechanism of acceleration, loss, and wave-particle interaction of energetic particles in the magnetosphere is a research content of the Space Plasma Environment Research Facility, which is being built as a user facility at the Harbin Institute of Technology in China. Two magnetic perturbation coils are used to simulate the magnetic storm distortion and excite Alfvén wave perturbation. A capacitor-based pulsed power supply (PPS) system with a modular design is developed to excite the magnetic perturbation coils to generate the required amplitude and duration of the magnetic field. The two magnetic perturbation coils are the CRDI coil and CRDII coil and are excited by one set of PPSs. The PPS for the CRDI coil consists of two modules and can provide a pulsed current of no less than 132 kA at 0.12 ms when the charging voltage is 20 kV, and the duration of the pulsed current from the peak to 10% of the peak is no more than 0.7 ms. The PPS for the CRDII coil consists of five modules and can provide a pulsed current of no less than 16 kA at 0.45, 0.65, 0.8, 0.95, and 1.1 ms, and the duration of the pulsed current from the peak to 10% of the peak is no more than 4.5 ms. The detailed design of the PPSs has been discussed in this paper, and the discharge test of the PPSs is carried out to verify the design of the PPSs.
磁层中高能粒子的加速、损失及波粒相互作用机制是空间等离子体环境研究设施的一项研究内容，该设施正在中国哈尔滨工业大学作为用户设施进行建设。两个磁扰动线圈用于模拟磁暴畸变并激发阿尔文波扰动。开发了一种基于电容器的模块化设计脉冲电源（PPS）系统，以激励磁扰动线圈产生所需幅度和持续时间的磁场。两个磁扰动线圈分别为CRDI线圈和CRDII线圈，由一组PPS激励。CRDI线圈的PPS由两个模块组成，当充电电压为20 kV时，可在0.12 ms内提供不小于132 kA的脉冲电流，脉冲电流从峰值下降到峰值的10%的持续时间不超过0.7 ms。CRDII线圈的PPS由五个模块组成，可在0.45、0.65、0.8、0.95和1.1 ms时提供不小于16 kA的脉冲电流，脉冲电流从峰值下降到峰值的10%的持续时间不超过4.5 ms。本文讨论了PPS的详细设计，并对PPS进行了放电测试以验证其设计。
