The digital multi-functional arc welding/cutting inverter based on ZVS

Author

Zhu, G.R. ; Liu, Z. ; Li, X. ; Duan, S.X. ; Kang, Y. ; Chen, J.

Author_Institution

Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan

fYear

2007

fDate

3-6 Dec. 2007

Firstpage

1075

Lastpage

1080

Abstract

According to the basic characteristics of arc welding and cutting, digital control system of ZVS arc welding/cutting inverter power source is researched and developed. This paper discusses the realizing principle of ZVS (zero voltage switch) soft switching in detail, analyzes the relation of the key component parameters and realization of ZVS, describes the realization method of phase-shifted PWM based on DSP and software flow chart of the control system, and presents the transition of the alternation between the voltage loop and current loop, which can meet the basic external characteristics of arc welding and cutting. Through plentiful experiments and tests, it can be found that the ZVS arc welding/cutting inverter power source based on digital control system operates well in various working situations.

Keywords

PWM invertors; arc cutting; arc welding; digital control; switching convertors; zero voltage switching; ZVS; arc cutting inverter; digital control system; multifunctional arc welding; phase-shifted PWM; pulse width modulation; software flow chart; zero voltage switching; Control systems; Digital control; Digital signal processing; Flowcharts; Pulse width modulation; Pulse width modulation inverters; Switches; Voltage control; Welding; Zero voltage switching; ZVS (Zero Voltage Switch) soft switch; arc welding/cutting; digital control system; inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference, 2007. IPEC 2007. International

Conference_Location

Singapore

Print_ISBN

978-981-05-9423-7

Type

conf

Filename

4510185