基于峰值电流模式的零电压软开关弧焊逆变器

A Novel Zero-Voltage Soft-Switching Arc Welding Inverter Based on Peak-Current Mode

针对目前弧焊逆变电源存在的问题 ,采用一种新型软开关电路拓扑 ,结合移相控制软开关技术和电流峰值控制技术 ,研制了基于峰值电流模式的零电压软开关弧焊逆变器。测试结果表明 ,该逆变器能够实现全范围软开关 ,并且具有良好的限流和自校正能力 ,可有效地解决功率变压器的偏磁问题。

To overcome the shortcomings of conventional arc welding inverters, a new soft switching topology, together with the phase shifted soft switching and peak current control technology, is used to develop a new soft switching arc welding inverter. The test results show that the full range soft switching and the functions of auto correction and current limiting are realized for the inverter, solving the problem of magnetic bias of the power transformer.