李冬辉,刘玲玲?覮,姚乐乐.高升压DC/DC变换器的研究[J].湖南大学学报:自然科学版,2019,(8):67~73
高升压DC/DC变换器的研究
Research of High Step-up DC/DC Converters
  
DOI:
中文关键词:  高升压  HS变换器  升压结构  电压增益  开关应力  电流尖波
英文关键词:high step-up  HS converter  boost structure  voltage gain  switching stress  current ripple
基金项目:
作者单位
李冬辉,刘玲玲?覮,姚乐乐 (天津大学 电气自动化与信息工程学院天津 300072) 
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中文摘要:
      提出了一种高升压DC/DC(简称HS)变换器,它利用一种特殊的结构来实现升压,这种升压结构是由两个电感、一个电容和两个二极管构成.将这种特殊的升压结构和双开关升压直流变换器相结合,就构成了HS变换器,通过电感电容充放电来实现升压功能.另外,本文还提出了(Repeated HS,Re-HS)和(Generalized HS,G-HS)变换器.分析了HS变换器在CCM模式下的电压增益,并对其电压增益、开关应力以及电流尖波进行了深入研究,并与其他电路进行了比较,对比分析验证了HS变换器具有高电压增益、低电压应力和低电流尖波的特点.通过搭建HS变换器的实际电路,验证了所提拓扑的正确性.
英文摘要:
      A High Step-up DC/DC (HS) converter was proposed. It steps up the voltage by using a special structure, and the boost structure is composed of two inductors, a capacitor and two diodes. Combing the special boost structure with the double-switch boost DC converter, HS converter is obtained, which depends mainly on charging and discharging of the inductors and capacitors to realize the step-up function. In addition, Repeated HS (Re-HS) and Generalized HS (G-HS) converters were proposed. The voltage gain of the Continuous Conduction Mode (CCM) for HS converter was analyzed. The voltage gain, voltage stress and ripple current of HS converter was deeply studied and compared with other converters. The comparative analysis shows that the HS converter has the characteristics of high voltage gain, low voltage stress, and low current ripple. By building the actual circuit of the HS converter, the correctness of the proposed topology is verified.
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