Wei Tong, Hua Li, Peng Fu, Kun Wang, Ul Hassan Mahmood, Zhiquan Song. A parameter optimization method of snubber circuit of thyristor under pulse current working condition[J]. High Power Laser and Particle Beams, 2020, 32(2): 025015
- High Power Laser and Particle Beams
- Vol. 32, Issue 2, 025015 (2020)
Fig. 1. Simplified commutation diagram of quench protection system (QPS)
Fig. 2. Exponential function model指数型模型波形图
Fig. 3. Test circuit for thyristor reverse recovery characteristic脉冲工况下晶闸管测试实验电路图
Fig. 4. Equivalent circuit diagram of snubber circuit during the reverse recovery process
Fig. 5. Peak value of V dmax under various set of R s and C s.
Fig. 6. Peak value of dV d/dt under various set of R s and C s
Fig. 7. Peak value of dV d/dt as a function of R s
Fig. 8. Peak value of V d as a function of R s and C s
Fig. 9. Comparison of reverse recovery current and voltage waveforms
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Table 1. Specific characteristics of thyristor during reverse recovery process
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Table 2. Design specification of RC snubber circuit for QPS in LSTF
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Table 3. The optimum Rs, Cs and corresponding circuit parameters
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Table 4. Comparison of electrical parameters
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