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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.