Development of AC square-wave inverter for high-power submerged arc welding

作者：He, Kuan-Fang^*; Huang, Shi-Sheng; Sun, De-Yi; Li, Peng

来源：Journal of South China University of Technology(Natural Science Edition), 2008, 36(8): 79-82.

• AC square wave
• Double closed-loop control
• Embedded control technology
• External characteristic
• High-power submerged arc welding
• Inverter
• Static characteristic
• Testing platforms

In order to meet the requirements of the AC square-wave submerged arc welding with high current, a high-power AC square-wave inverter, which combines the parallel inverter technology, the double closed-loop control technology and the embedded control technology, was developed. Then, the external characteristics of the developed inverter were tested at the testing platform for arc welding load, and some experiments were carried out. The results indicate that the developed inverter fully meets the requirements of the submerged arc welding because it helps to obtain smooth and perfect welding seam with excellent dynamic and static characteristics, high speed of current zero-crossing and good stability.

• 出版日期2008-8
• 单位华南理工大学