1. Design of a Hybrid Power Supply for a 65 T Quasi-Continuous High Magnetic Field With a Dual-Coil Magnet.
- Author
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Ding, Hongfa, Yongheng Huang, Jun Zhou, Yiliang Lv, Xiao Fanga, Zhangfei Zhao, Tieqiang Ren, Huan Li, and Xiangzhong Xie
- Subjects
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POWER resources , *MAGNETIC fields , *ELECTROMAGNETS , *CAPACITORS , *ARTIFICIAL neural networks - Abstract
A quasi-continuous high magnetic field is a special kind of pulsed magnetic field with a flat-top field longer than 100 ms. This paper proposes a hybrid power supply that consists of a capacitor power supply and a generator-rectifier power supply. A dual-coil magnet is powered to generate a 65 T/100 ms quasicontinuous high magnetic field with a ripple less than 500 ppm at the Wuhan National High Magnetic Field Center, Wuhan, China. A protection circuit consists of an R-C branch and a diode array is discussed for the worst short-circuit fault, which occurs between the first turns of inner coil and outer coil. This type of faultwill produce oscillation voltage with a high peak value and high frequency on the rectifiers. A self-adaptive PI controller with the coefficients corrected by a back propagation neural network is adopted to reduce the ripple of a flat-top. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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