焊割一体电源中串并联变压器优化设计  

Optimization design of series-parallel transformers in welding/cutting power supply

作　　者：吉彬荣 刘邦银[1] 李勇[1] 杨家俊 段善旭[1] JI Binrong;LIU Bangyin;LI Yong;YANG Jiajun;DUAN Shanxu(State Key Laboratory of Advanced Electromagnetic Technology(Huazhong University of Science and Technology),Wuhan 430074,China)

机构地区：[1]强电磁技术全国重点实验室(华中科技大学),湖北武汉430074

出　　处：《电工电能新技术》2024年第11期80-89,共10页Advanced Technology of Electrical Engineering and Energy

摘　　要：针对焊割一体电源在焊接工况和切割工况下输出电压电流差异较大的问题,本文提出了串并联变压器型移相全桥变换器拓扑,对串并联变压器的工作原理进行了分析,并给出了一种串并联变压器的优化设计流程,得到具有最小体积和最小损耗的串并联变压器设计方案。最后,设计了一台12 kW/100 kHz的焊割一体电源样机,最高效率达96%,实验验证了理论分析的正确性,设计满足系统宽输出电压电流范围的同时提高了系统的功率密度。To address the significant differences in voltage and current output between welding and cutting conditions in integrated welding-cutting power supply,this paper proposes a phase shift full bridge converter topology based on series-parallel transformers.The working principle of the series-parallel transformers are analyzed,and an optimization design process for the series-parallel transformers is presented to obtain a design with the smallest volume and minimal losses.Finally,a prototype of a 12 kW/100 kHz integrated welding-cutting power source is designed,with a maximum efficiency of 96%.Experimental validation confirms the correctness of the theoretical analysis and demonstrates that the design satisfies the range of wide output voltage and current of the system while increasing the power density of the system.

关 键 词：焊割一体电源 串并联变压器 优化设计 

分 类 号：TM46[电气工程—电器]