An extendable single-switch n-cell boost converter with high voltage gain and low components stress for renewable energy

作者：Zhang, Guidong; Chen, Haodong; Yu, Shenglong; Zhang, Bo; Chen, Yanfeng; Iu, Herbert; Zhang, Yun^*

来源：International Journal of Circuit Theory and Applications, 2020, 48(6): 817-831.

DOI：10.1002/cta.2801

• extendable multicell converter
• low component stress
• single-switch boost converter

Boost converters have been widely employed in industrial applications, and cascading boost converters is a mature technique to realize ultrahigh voltage gains. However, the cascade structure inevitably increases the voltage stress of buffer capacitors, resulting in high costs and low energy efficiency. Targeting this issue, in this study, we propose a novel extendable single-switch n-cell boost converter (ESSnB), which utilizes the same number of components as the conventional positive output boost converter, but has lower buffer voltage stresses. Simulation and experimentation are conducted in this study, which verify the effectiveness and superiority of the proposed ESSnB over conventional boost converters.

• 单位
  y; 广东工业大学