论文标题
非分离的高加速式DC-DC转换器与二极管乘积乘数单元和双耦合电感器
A Non-Isolated High Step-Up Interleaved DC-DC Converter with Diode-Capacitor Multiplier Cells and Dual Coupled Inductors
论文作者
论文摘要
在本文中，提出了非分类的高升级DC-DC转换器。所提出的转换器由交织结构和二极管乘积细胞组成，用于将低压可再生能源连接到高压分布总线。上述拓扑结构可以通过使用耦合电感器和二极管电容器细胞而提供很高的电压增益。耦合的电感器连接到二极管电容器乘数单元，以实现输出侧的输出储能。此外，所提出的拓扑提供了连续输入电流，电源设备上的电压应力低。二极管的反向恢复问题减少了。该拓扑可以通过调整耦合电感器的转弯比以减少占空比的周期进行操作。此外，引入了提出的拓扑结构与其他转换器之间的性能比较。提出了设计注意事项操作原理，稳态分析，模拟结果和实验验证。因此，构建了30-V的输入电压和1000-V的输出电压的500-W硬件原型，以验证性能和理论分析。
In this paper, a non-isolated high step-up dc-dc converter is presented. The proposed converter is composed of an interleaved structure and diode-capacitor multiplier cells for interfacing low-voltage renewable energy sources to high-voltage distribution buses. The aforementioned topology can provide a very high voltage gain due to employing the coupled inductors and the diode-capacitor cells. The coupled inductors are connected to the diode-capacitor multiplier cells to achieve the interleaved energy storage in the output side. Furthermore, the proposed topology provides continuous input current with low voltage stress on the power devices. The reverse recovery problem of the diodes is reduced. This topology can be operated at a reduced duty cycle by adjusting the turn ratio of the coupled inductors. Moreover, the performance comparison between the proposed topology and other converters are introduced. The design considerations operation principle, steady-state analysis, simulation results, and experimental verifications are presented. Therefore, a 500-W hardware prototype with an input voltage of 30-V and an output voltage of 1000-V is built to verify the performance and the theoretical analysis.
