An Automatic Control System Based on Arc Voltage of TIG Welding

2011 ◽  
Vol 418-420 ◽  
pp. 1379-1382
Author(s):  
Wang Ping Gu ◽  
Zhen Yu Xiong ◽  
Wen Wan
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Pid Controller ◽  
Welding Process ◽  
Tig Welding ◽  
Arc Length ◽  
Voltage Transducer ◽  
Digital Pid ◽  
Length Constant

This paper describes an automation welding control system for Tungsten inert gas shielded (TIG) welding to maintain constant arc length. And using this method can replace manual operation. A voltage transducer was used to avoid high-frequency voltage. And dynamic relation between variation of arc length and voltage are described. A digital Proportion-Integration-Differentiation (PID) controller with identified value has been used modulate the rate of electrode feed mechanism. The mechanism, which driven by Servomotor A, can compensated variation of arc length in welding path. By keeping the arc length constant during the welding process, an elegant appearance and higher quality seam is obtained. The experiment result shows that this automatic control system based on digital PID controller is stable, and can working effectively without operator manipulation.

scholarly journals Sampling Rate Impact on the Tuning of PID Controller Parameters

2016 ◽  
Vol 62 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Michal Laskawski ◽  
Miroslaw Wcislik
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Automatic Control System ◽  
Pid Controller ◽  
Sampling Rate ◽  
Sampling Period ◽  
Pid Controllers ◽  
Optimal Parameters ◽  
The Impact

Abstract The paper deals with an analysis of automatic control system with continuous and discrete PID controllers. A method of tuning the parameters of the continuous controller is presented, which is optimal according to the ITAE criterion. The behavior of control systems with discrete controllers whose parameters were tuned using the mentioned method are described. The impact of changes in the sampling period of controlled signal on the control quality is shown. Changes of the values of optimal parameters of discrete PID controllers in relation to changes of the sampling rate of controlled signal are characterized.

Digital Automatic Control System with PID Controller

1970 ◽  
Vol 110 (4) ◽  
pp. 13-16
Author(s):  
A. Petrovas ◽  
S. Lisauskas ◽  
R. Rinkeviciene
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Design Process ◽  
Automatic Control System ◽  
Pid Control ◽  
Pid Controller ◽  
Control Algorithm ◽  
General Purpose ◽  
Simulation Results

The design process of digital automatic control system with PID controller is considered. The solution of problems related with implementation of PID control algorithm into general purpose 8-bit microcontroller is discussed. Simulation results demonstrating performance of system are presented. Ill. 4, bibl. 6, tabl. 3 (in English; abstracts in English and Lithuanian).http://dx.doi.org/10.5755/j01.eee.110.4.277

Girth Automatic Welding System

2014 ◽  
Vol 556-562 ◽  
pp. 2528-2531
Author(s):  
Xiao Long Xu ◽  
Ke Li Xing ◽  
Jia Yu Dai
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Welding Process ◽  
Touch Screen ◽  
Automatic Welding ◽  
Stepping Motor ◽  
Welding Torch ◽  
Welding System

Designed a positioning, welding and reset automatic control system based on stepping motor, PLC, touch screen. Welding torch is positioned through the photoelectric switch. PLC controls stepping motor running and welding torch starting arc and ending arc. Communication between the touch screen and PLC improves the efficiency of the system and achieves the girth automation welding process.

Investigation of the stability of periodic motions in a nonlinear automatic control system based on the fast fourier transform

2003 ◽  
Vol 3 ◽  
pp. 297-307
Author(s):  
V.V. Denisov
Keyword(s):  
Fourier Transform ◽  
Control System ◽  
Automatic Control ◽  
Fast Fourier Transform ◽  
Automatic Control System ◽  
Resonance Phenomenon ◽  
Periodic Motions ◽  
Multiply Connected ◽  
Non Linear ◽  
The Stability

An approach to the study of the stability of non-linear multiply connected systems of automatic control by means of a fast Fourier transform and the resonance phenomenon is considered.

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