Research on High Frequency Inverter Resistance Spot Welding Power Supply Base on DSP

2011 ◽  
Vol 47 (06) ◽  
pp. 80
Author(s):  
Min ZENG
Keyword(s):  
Power Supply ◽  
Resistance Spot Welding ◽  
High Frequency ◽  
Spot Welding ◽  
Resistance Spot ◽  
Welding Power Supply ◽  
Frequency Inverter

Realization of a ZVS Inverting Spot Welding Power Supply

2013 ◽  
Vol 339 ◽  
pp. 440-445
Author(s):  
Peng Shu Zhao ◽  
Xu Dong Wang ◽  
Miao Sen Yang ◽  
Kai Kang
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Spot Welding ◽  
Working Condition ◽  
Loop Control ◽  
Zero Voltage Switching ◽  
Edge Current ◽  
Welding Power Supply ◽  
Zero Voltage ◽  
Frequency Inverter

In this paper it constructs a phase shift to control zero-voltage-switching of high frequency inverter spot welding power supply topology structure. Through testing the former vice edge current, the system realizes the closed loop control. In this paper, it shows the working condition of main circuit modal. The experimental results proved the advantages of the topological structure.

3-Phase 4-Wire VIENNA Rectifier Used in the Resistance Spot Welding Inverter Power Supply

2013 ◽  
Vol 432 ◽  
pp. 263-268
Author(s):  
Yong Zhang ◽  
Hui Teng ◽  
Tie Jun Ma ◽  
Hong Xia Xie ◽  
Peng Wan
Keyword(s):  
Power Supply ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Simulation Software ◽  
Distortion Factor ◽  
Large Power ◽  
Resistance Spot ◽  
Vienna Rectifier ◽  
Inverter Power Supply ◽  
Welding Inverter

Considering the distortion factor, the large power resistance spot welding (RSW) inverter power supplys actual power factor (PF) is very low. In this paper, the 3-phase 4-wire three-phase/switch/level (VIENNA) rectifier is proposed to realize the power factors correction (PFC). Firstly, an equivalent load model of the back-stage in the RSW inverter power supply is established, thus the real load of this PFC circuit can be archived. Then, the 3-phase 4-wire VIENNA rectifier PFC circuit is analyzed with the simulation software of Pspice. Finally, an experimental circuit power of 3kW is designed. Experimental results show that the PF of this system can be increased to 98.6% that demonstrates the practicability of the 3-phase 4-wire VIENNA rectifier in RSW inverter power supply.

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