Reverse voltage generating circuit for rapid commutation of output current polarity in variable polarity arc welding power supply

2017 ◽  
Vol 10 (12) ◽  
pp. 1609-1616
Author(s):  
Yang Zhong‐Yu ◽  
Zhu Zhi‐Ming ◽  
Liu Bo
Keyword(s):  
Power Supply ◽  
Arc Welding ◽  
Output Current ◽  
Reverse Voltage ◽  
Variable Polarity ◽  
Current Polarity ◽  
Welding Power Supply

Performance Improvements in an Arc-Welding Power Supply Based on Resonant Inverters

2012 ◽  
Vol 48 (3) ◽  
pp. 888-894 ◽  
Author(s):  
Alejandro Navarro-Crespin ◽  
Rosario Casanueva ◽  
Francisco J. Azcondo
Keyword(s):  
Power Supply ◽  
Arc Welding ◽  
Performance Improvements ◽  
Welding Power Supply

scholarly journals Research on Adaptive Controller for Variable Polarity Plasma Arc Welding Power Supply with High-Frequency

2019 ◽  
Vol 269 ◽  
pp. 04001 ◽  
Author(s):  
Yang Zhou ◽  
Bojin Qi ◽  
Minxin Zheng
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Pid Controller ◽  
Adaptive Controller ◽  
Output Current ◽  
Evolution Path ◽  
Waveform Distortion ◽  
Frequency Components ◽  
Welding Power Supply ◽  
Variable Polarity Plasma Arc

Aiming at the problem of output current waveform distortion caused by superimposed high frequency components in the output current of varying polarity of VPPAW power supply. A novel adaptive PID controller with automatic switching is introduced in this paper, and the controller is established based on the evolution path of the operating point of the VPPAW power supply. Compared with the traditional linear PID controller, the adaptive controller proposed in this paper is very suitable for the control of arc load with strong dynamic characteristics and can effectively improve output waveform of the welding system.

Influence of Arc Welding Power Supply on Structural Phase Composition of X12CrNiTi 18-9 (DIN) Weld

2015 ◽  
Vol 770 ◽  
pp. 70-75 ◽  
Author(s):  
D.P. Il’yaschenko ◽  
Dmitry A. Chinakhov ◽  
V.I. Danilov ◽  
G.V. Schlyakhova
Keyword(s):  
Power Supply ◽  
Arc Welding ◽  
Structural Phase ◽  
Austenitic Steels ◽  
Thermal Impact ◽  
Impact Zone ◽  
Fine Grained ◽  
Manual Arc Welding ◽  
Fine Grained Structure ◽  
Welding Power Supply

The paper presents the results of studies improve efficiency of manual arc welding of austenitic steels. It is in arc welding of austenite steels the use of inverter power supply furthers obtaining more fine-grained structure of added metal and thermal impact zone, shortens thermal impact zone; that improves corrosion resistance of joint weld.

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