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Design of a Hybrid Power Supply for a 65 T Quasi-Continuous High Magnetic Field With a Dual-Coil Magnet.
- Source :
- IEEE Transactions on Applied Superconductivity; Apr2018, Vol. 28 Issue 3, p1-5, 5p
- Publication Year :
- 2018
-
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]
- Subjects :
- POWER resources
MAGNETIC fields
ELECTROMAGNETS
CAPACITORS
ARTIFICIAL neural networks
Subjects
Details
- Language :
- English
- ISSN :
- 10518223
- Volume :
- 28
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Applied Superconductivity
- Publication Type :
- Academic Journal
- Accession number :
- 128726587
- Full Text :
- https://doi.org/10.1109/TASC.2018.2801817