The Design of Power Supply with Feed-Forward Control Method for EBW

Shou Qi Wei; Zhi Jie Liu; Si Si Zhu; Zhen Yuan Su; Ming Li; Xu Chen

doi:10.4028/www.scientific.net/AMM.395-396.1094

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 395-396The Design of Power Supply with Feed-Forward...

The Design of Power Supply with Feed-Forward Control Method for EBW

Abstract:

A kind of accelerating power supply device for electronic beam welder was introduced in this paper. The device adopts PWM modulation method, use IGBT as DC chopper. M, N two groups of H inverse bridge parallel with each other compose the inverter. Intermediate frequency AC produced by inverter was sent into intermediate frequency high voltage transformer, after the high voltage rectifying and filtering, the high voltage output running steadily. In order to improve the power supply devices output characteristics when power system fluctuates or load changes, feed-forward control strategy was introduced. Use the control method that feed-forward combining with feed-back. The experiments show that the adjusting speed of this power supply device is fast, the output voltage ripple is small, the technical indicators can meet high welding technology for electron beam welding machine.

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Periodical:

Applied Mechanics and Materials (Volumes 395-396)

Pages:

1094-1098

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.395-396.1094

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Online since:

September 2013

Authors:

Shou Qi Wei*, Zhi Jie Liu, Si Si Zhu, Zhen Yuan Su, Ming Li, Xu Chen

Keywords:

Feed-Forward Control, H Bridge Inverter, Medium Frequency Transformer

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* - Corresponding Author

References

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