Design of Control System for Automatic Welding Machine for Battery Packs of New Energy Automobile

2014 ◽  
Vol 716-717 ◽  
pp. 1508-1511
Author(s):  
Hai Yan Hu ◽  
Jian Dong Yang

According to the welding technology of the battery packs in new energy automobile, this paper adopts PC and motion control card as the hardware of the automatic welding machine control system and the software is designed based on the idea of both the hierarchical design and the modular design. The automatic operation of code G and code M of the numerical control system has been realized. Combining the coarse positioning with the fine positioning effectively solves the problems between efficiency and accuracy in position, which greatly promotes the stability of the system.It has excellent control functions and good performance.

2011 ◽  
Vol 287-290 ◽  
pp. 2456-2459 ◽  
Author(s):  
Xin Song Chen ◽  
Wei Yao ◽  
Ai Qin Duan

The defocus distance is one of the most important factors during filling laser welding with wire. Keeping defocus distances stability is the pre-condition to acquire the stable weld quality. In this paper, a QUANTA laser camera was used to measure the defocus distance, and it is compensated in real time through the numerical control system. The results reveal that the fixed defocus distances can be acquired using this system. And the experiments by using auto-controlling method of the defocus distance show that the stability of welding process can be improved greatly and the good weld quality can be easy to be obtained.


2011 ◽  
Vol 201-203 ◽  
pp. 1919-1925
Author(s):  
Hong Xin Shi ◽  
Jin Hong Zhu ◽  
Lian Mei Song ◽  
Xiao Ping Zou ◽  
Jian Han

A kind of automatic welding machine and its microcomputer control system were designed in this paper. The mechanical system includes a floating welding workbench, the two-dimension mechanism and the indexing mechanism. There are two choices for the control system, based on PLC or IPC separately. The automatic welding machine can be applied to train hook buildup welding. Experiments showed that reasonable buildup welding was achieved, and the automatic buildup welding equipment can improve productivity and work conditions.


2003 ◽  
Vol 3 ◽  
pp. 297-307
Author(s):  
V.V. Denisov

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.


2021 ◽  
Vol 13 (11) ◽  
pp. 6388
Author(s):  
Karim M. El-Sharawy ◽  
Hatem Y. Diab ◽  
Mahmoud O. Abdelsalam ◽  
Mostafa I. Marei

This article presents a control strategy that enables both islanded and grid-tied operations of a three-phase inverter in distributed generation. This distributed generation (DG) is based on a dramatically evolved direct current (DC) source. A unified control strategy is introduced to operate the interface in either the isolated or grid-connected modes. The proposed control system is based on the instantaneous tracking of the active power flow in order to achieve current control in the grid-connected mode and retain the stability of the frequency using phase-locked loop (PLL) circuits at the point of common coupling (PCC), in addition to managing the reactive power supplied to the grid. On the other side, the proposed control system is also based on the instantaneous tracking of the voltage to achieve the voltage control in the standalone mode and retain the stability of the frequency by using another circuit including a special equation (wt = 2πft, f = 50 Hz). This utilization provides the ability to obtain voltage stability across the critical load. One benefit of the proposed control strategy is that the design of the controller remains unconverted for other operating conditions. The simulation results are added to evaluate the performance of the proposed control technology using a different method; the first method used basic proportional integration (PI) controllers, and the second method used adaptive proportional integration (PI) controllers, i.e., an Artificial Neural Network (ANN).


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