电子科技2016，Vol.29Issue(12)：55-58,4.DOI:10.16180/j.cnki.issn1007-7820.2016.12.016
基于单极性倍频SPWM调制的电阻焊逆变电源
Research on Resistance Welding Inverter Power Supply Base on Unipolar Double Frequency SPWM Modulation
摘要
Abstract
Single phase power frequency resistance welding machines of widely used in the current market have these problems.The working current is discontinuous.It is easy to occur splash and power factor is low.In view of these problems, it is designed a resistance welding inverter control scheme which based on unipolar double frequency SPWM modulation.After the three-phase AC power grid voltage is rectified, it is used SPWM inverter technology to achieve constant current and constant voltage control.The current of power supply output is continuous and current spikes is small.It is high thermal efficiency and high power factor.For some welding technology of need a short welding time, the output current frequency can be increased to achieve a short time welding.关键词
电阻焊/单极性倍频SPWM/逆变电源Key words
resistance welding/unipolar double frequency SPWM/inverter power supply分类
信息技术与安全科学引用本文复制引用
罗忠福,谢明..基于单极性倍频SPWM调制的电阻焊逆变电源[J].电子科技,2016,29(12):55-58,4.基金项目
沪江基金资助项目(B1402/D1402) （B1402/D1402）
