A low current ripple high step-up interleaved boost converter with switched-capacitors and switched-inductors that can be used in renewable resources such as photovoltaic energy and fuel cells is studied in this paper. In the proposed converter, the voltage gain is significantly increased and the voltage stresses of the switches are reduced by applying two switched-inductor units to replace individual inductors and by adding a switched-capacitor network to the output side. In addition, the current ripple of the inductor branch is reduced with the help of introducing a coupled-inductor, while the dynamic response speed remains almost unchanged. Therefore, smaller inductors can be used to reduce the volume of the converter. In this paper, the operating principles; the steady-state performance including the voltage gain, the voltage stresses of the switching devices, and the current ripple of the inductor; and transient-state performance of the proposed topology are analyzed. Moreover, the design criteria of the coupled-inductor are given in detail, and the double closed-loop PI controllers are designed. Finally, experimental results are given for a 160 W, 18 V input to 240 V output prototype. These results verify the correctness of the theoretical analysis. In addition, the efficiency analysis and power calculations are also discussed.

本文研究了一种具有开关电容器和开关电感器的低电流纹波高升压交错式升压转换器，可用于光伏能源和燃料电池等可再生资源。在所提出的转换器中，通过应用两个开关电感单元来代替单个电感器并在输出侧添加一个开关电容网络，电压增益显着增加并降低了开关的电压应力。此外，通过引入耦合电感，降低了电感支路的电流纹波，同时动态响应速度几乎保持不变。因此，可以使用更小的电感来减小转换器的体积。在本文中，操作原理；稳态性能，包括电压增益，开关器件的电压应力和电感的电流纹波；分析了所提出的拓扑结构的瞬态性能。此外，详细给出了耦合电感器的设计标准，并设计了双闭环PI控制器。最后，给出了 160 W、18 V 输入至 240 V 输出原型的实验结果。这些结果验证了理论分析的正确性。此外，还讨论了效率分析和功率计算。18 V 输入至 240 V 输出原型。这些结果验证了理论分析的正确性。此外，还讨论了效率分析和功率计算。18 V 输入至 240 V 输出原型。这些结果验证了理论分析的正确性。此外，还讨论了效率分析和功率计算。