146 / 2022-07-05 20:19:28
A High Flat-Top Pulsed Magnetic Field System with a Dual-Coil Magnet Energized by a Hybrid Power Supply
flywheel alternator-rectifier power supply,high flat-top pulsed magnetic field,multiple-capacitor power supply,non-linear model predictive control
Final Paper
Dake Li / Huazhong University of Science & Technology
Hongfa Ding / Huazhong University of Science and Technology;Wuhan National High Magnetic Field Center;School of Electrical and Electronic Engineering
Xiaolong He / Huazhong University of Science and Technology
Peichen Li / Shanghai United Imaging Healthcare Co., LTD
Hang Zhang / Huazhong University of Science and Technology
Song Zhang / Huazhong University of Science and Technology
High flat-top pulsed magnetic field (HFPMF) can provide an extreme experimental environment for physics, chemistry, biology, and other scientific fields. In the last decade, scientific experiments have placed higher demands on the magnetic field strength, flat-top duration, and stability of HFPMFs. To tackle these challenges, this paper proposes an HFPMF system with a dual-coil magnet energized by a hybrid power supply. The inner coil is powered by a 100 MVA flywheel alternator-rectifier power supply (FARPS) and the outer coil is powered by a 24MJ multiple-capacitor power supply (MCPS). During the operation of the system, the load current will produce nonlinear changes, which causes difficulties in adjusting the trigger angle of the rectifier. Therefore, the control strategy for FARPS based on non-linear model predictive control (NMPC) is adopted. Finally, the designed system is modeled in MATLAB/Simulink, which verifies the effectiveness of the hybrid power supply and the control method.
Important Date
  • Conference Date

    Nov 03

    2022

    to

    Nov 05

    2022

  • Aug 01 2022

    Draft paper submission deadline

  • Nov 04 2022

    Registration deadline

  • Nov 05 2022

    Contribution Submission Deadline

Sponsored By
Huazhong University of Science and Technology
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