大功率逆变电源峰值电流控制模式的研究

Study on Peak-current Mode in High Power Soft-switching Inverter

提出了一种将峰值电流控制模式与移相软开关技术相结合的新型弧焊逆变电源。探讨了峰值电流控制系统的结构与稳定性。实验结果表明 ,采用峰值电流模式的逆变器能够实现全范围的软开关 ,并且具有良好的限流和自校正能力 。

A novel soft switching topology is presented and the phase shifted soft switching technology and peak current injection technology are applied in the research of soft switching arc welding inverter. The structure and stability of the peak current mode system are discussed. The experiment results indicated that the novel inverter using peak current injection technology can achive soft switching with full range and is capable of auto correcting and current limiting which solves the magnetic bias of power transformer effectively.