Interleaved Four-Phase Buck-Based Current Source With Isolated Energy-Recovery Scheme for Electrical Discharge Machining

Ray Lee Lin, Cheng Ching Hsu, Shih Kuen Changchien, Shih Kuen Changchien

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

This paper presents the interleaved four-phase buckbased current source in continuous conduction mode with proposed isolated energy-recovery scheme for electrical discharge machining (EDM). EDM requires a pulse currentwith high slew rate in the output current of the current source. The interleaving technique allows the output slew rate of the buck-based current source to be improved due to the existence of the paralleled inductors at the start of discharge. The proposed isolated energy-recovery scheme provides a major path for the inductor to release its stored energy, thus avoiding high voltage stress in the output terminal when the gap reverts to the high-impedance state. The energy stored in he inductor is recycled to the input capacitor and can be reused for machining. The experimental results validate that the output current slew rate is high and that the energy is recovered when the gap is in the high-impedance state.

原文English
頁(從 - 到)1788-1797
頁數10
期刊IEEE Transactions on Power Electronics
24
發行號7
DOIs
出版狀態Published - 2009 7月

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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