One-Cycle Control for Pulse Power Generator in Electrical-Discharge-Machining

被引：4

作者：

Yang, Fei ^{[1
]}

Liu, Yayun ^{[1
]}

Liu, Weihan ^{[1
]}

Yao, Kai ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Automat, Nanjing 210094, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2022年 / 69卷 / 11期

关键词：

Discharges (electric); Generators; Voltage control; Control systems; Switches; Current control; Transient analysis; Dynamic response; electrical discharge machining (EDM); one-cycle control (OCC); pulse power generator; MICRO-EDM; VOLTAGE; DESIGN; CONVERTERS;

D O I：

10.1109/TIE.2021.3121706

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Due to a short-time gap breakdown in electrical discharge machining (EDM), a high dynamic response and flexible discharge current control ability are required for a pulse power generator. Therefore, a one-cycle control(OCC) of output current for a buck-type EDM pulse power generator is proposed. Considering the inductor current operating state, a full-range OCC current control is presented, and the Taylor expansion method is used for the duty cycle calculation. A duty cycle optimization strategy is proposed for transient states. Based on the small signal modeling, the dynamic response ability of the system is analyzed. The discharge current can switch from many transient states to a steady state in a few switching cycles without a current overshoot, and follow the average current reference well in the steady state.

引用

页码：11012 / 11022

页数：11

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