电流反馈式Boost+推挽级联变换器的研究  

Research on Boost+Push-pull Cascaded Converter With Current-feedback

作　　者：孙涛 SUN Tao(Lianyungang JARI Electronics Co.,Ltd.,Lianyungang 222006,China)

机构地区：[1]连云港杰瑞电子有限公司,江苏连云港222006

出　　处：《电力电子技术》2018年第10期90-92,共3页Power Electronics

摘　　要：采用电池供电的系统,在实际应用中多需要将宽范围变化的输出电压转换为隔离的直流高压母线,采用单级变换器往往难以优化隔离变换器设计,导致变换效率偏低。研究了Boost+推挽级联式变换电路,并进行了电路结构简化,提出了电流反馈式Boost+推挽级联式变换器。分析了该级联电路的工作原理,给出了详细的工作过程,并且通过电路仿真验证了分析的正确性。最后,在以燃料电池供电的逆变电源系统中采用了该电路,有效提高了整体效率。In applications with battery, the wide range output should be converted to isolated high DC voltage bus. With single-stage converter, optimized-design of the isolated transformer is difficult, leading lower converting efficiency. The Boost＋push-pull cascaded converter is researched.With the simplified of the circuit structure,the current-feed- backed Boost＋push-pull cascaded converter is proposed.The working principle and detailed working process of the cascade circuit are analyzed which verified by the simulation.At last,the current-feedback cascaded converter is applied in a inverter powered by fuel cells achieving the overall efficiency improvement.

关 键 词：变换器 推挽 级联 电流反馈 

分 类 号：TM46[电气工程—电器]