Development of AC Square-Wave Inverter for High-Power Submerged Arc Welding

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

• Mechanical Engineering • Previous Articles Next Articles

Development of AC Square-Wave Inverter for High-Power Submerged Arc Welding

He Kuan-fang Huang Shi-sheng Sun De-yi Li Peng

School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China

Received:2007-07-03 Revised:2007-09-16 Online:2008-08-25 Published:2008-08-25
Contact: 何宽芳（1979-），男，博士生，主要从事现代弧焊装备及其智能控制研究． E-mail:he．kuanfang@mail．scut．edu．cn
About author:何宽芳（1979-），男，博士生，主要从事现代弧焊装备及其智能控制研究．
Supported by:
国家自然科学基金资助项目（50575074）

Abstract

Abstract:

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.

Key words: high-power submerged arc welding, AC square wave, inverter

He Kuan-fang Huang Shi-sheng Sun De-yi Li Peng . Development of AC Square-Wave Inverter for High-Power Submerged Arc Welding[J]. Journal of South China University of Technology (Natural Science Edition), 2008, 36(8): 79-82.

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Development of AC Square-Wave Inverter for High-Power Submerged Arc Welding

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