N-stage quadratic boost converter based on voltage lift technique and voltage multiplier
N-stage quadratic boost converter based on voltage lift technique and voltage multiplier
复制标题
基于电压提升技术和电压倍增器的N级二次升压变换器
DOI：
10.1049/icp.2022.1144
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Alkhaldi A
中科院分区：
文献类型：
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作者：
Alkhaldi A
提出了一种基于电压提升技术和倍压技术的单有源开关高升压DC-DC变换器。该变换器采用N级二次型Boost变换器，用电压提升单元代替原电路中的电感，提高了电压增益，并具有平均占空比。在这项工作中，电压倍增器单元可以使电压转换比加倍，使得开关器件上的电压应力为输出电压的一半。该变换器具有输入输出电流涟漪小、结构简单、功率密度高、可控性好等优点。理论上，在占空比为0.5时，输入电压可以增加32倍，从而将器件上的电压应力降低50%，从而提供比其对应器件更高的电压增益和输出功率。利用MATLAB/Simulink仿真结果验证了该拓扑结构的有效性。
This article proposes a new high step up DC-to-DC converter with single active switch based on voltage lift technique and voltage multiplier. N-stage quadratic boost converter is used by replacing its inductor with a voltage lift cell to improve the voltage gain with an average duty ratio. In this work, the voltage multiplier cell can double the voltage conversion ratio making the voltage stress on the switching device half the output voltage. The proposed converter also has small input and output current ripple, and it has a simple structure with a higher power density and flexible controllability. Theoretically, the input voltage can be increased by the ratio of 32 at a 0.5 duty ratio reducing the voltage stress on the device by 50% of the output voltage providing higher voltage gain and output power than its counterparts. Simulation results are provided using MATLAB/Simulink to validate the proposed topology.