The high-power IGBTs are adopted to design the dual inverter arc-welding power source for variable polarity pulse MIG welding.
提出采用大功率IGBT设计变极性脉冲MIG焊双逆变弧焊电源。
2
Dynamic process of current is controlled quickly by the first inverter, and arc polarity is controlled by the second inverter of arc welding power source.
弧焊电源一次逆变控制电流快速动态过程，二次逆变控制电弧极性。
3
To overcome voltage stress existed in the inverter with high frequency AC pulse link, single polarity and double polarities phase shifting control strategies were proposed and studied in this paper.