In this article, a hybrid interleaved connecting boost converter (HIBC) with a wide step-up regulation range is proposed, which is suitable for the low-voltage distributed generation applications. In the input of the HIBC, the primary windings of the double-coupled inductors are interleaved parallel connection, inheriting shared current and reduced current ripples. Then, the lossless passive clamped circuits are used to recycle the leakage energy of the coupled inductor and to reduce the voltage stress on the semiconductor devices to a very low level. The secondary windings of the coupled inductors are, respectively, combined with a capacitor-diode to form the two voltage multiplier units, which are again, respectively, connected with an output capacitor for a voltage-doubling module. These two voltage-doubling modules are connected in interleaved series for supplying power to the output, whose structure enhances the voltage gain greatly without adopting an extreme duty cycle and reduces the output voltage ripples. In addition, the main switches of the proposed converter can be operated in zero-current switching and full duty cycle range in theory, achieving a wide step-up regulation range with the high efficiency. Finally, the theoretical behaviors of the presented converter are described in detail and some experimental results are also shown to demonstrate the effectiveness of the proposed converter.

中文翻译：

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一种具有宽升压调节范围和超低电压应力的混合交错式DC__C转换器


本文提出了一种具有宽升压调节范围的混合交错连接升压转换器（HIBC），适用于低压分布式发电应用。在HIBC的输入端，双耦合电感的初级绕组采用交错并联连接，继承共享电流并减少电流纹波。然后，使用无损无源钳位电路来回收耦合电感器的泄漏能量，并将半导体器件上的电压应力降低到非常低的水平。耦合电感的次级绕组分别与电容二极管组合形成两个倍压单元，再分别与输出电容连接构成倍压模块。这两个倍压模块交错串联，为输出供电，其结构在不采用极端占空比的情况下大大提高了电压增益，并减少了输出电压纹波。此外，理论上，所提出的转换器的主开关可以在零电流开关和全占空比范围内工作，实现宽升压调节范围和高效率。最后，详细描述了所提出转换器的理论行为，并显示了一些实验结果，以证明所提出转换器的有效性。