Ronglin Huang, Peng Fu, Liansheng Huang, Liuwei Xu, Ge Gao, Shiying He. Short-circuit impedance design for converter transformer of superconducting magnet power supply for CRAFT[J]. High Power Laser and Particle Beams, 2021, 33(9): 096001
- High Power Laser and Particle Beams
- Vol. 33, Issue 9, 096001 (2021)
Fig. 1. Simplified diagram of power supply system
Fig. 2. Phase current waveform of valve-side of converter transformer with the firing angle α
Fig. 3. Equivalent circuit of synchronous phase shifting for converter
Fig. 4. Phasor diagram of converter system
Fig. 5. Relation between maximum output voltage V dmax and short circuit impedance u k of transform
Fig. 6. Equivalent circuit of transferring from V 5 to V 1
Fig. 7. A-phase current waveform of three phase bridge converter
Fig. 8. Relation between harmonic current and short circuit impedance u k of transform
Fig. 9. Short-circuit fault diagram of converter
Fig. 10. Relationship curve between Q S, PF and u k
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Table 1. Design parameters and performance of the power supply
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Table 2. Electrical parameters of main equipments
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Table 3. Equivalent impedance of main equipments
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