Coupled inductor and switched capacitor hybrid interleaved parallel high gain converter

This paper proposes a new hybrid interleaved parallel boost converter based on coupling inductor and switching capacitor, suitable for renewable energy systems. This converter achieves higher voltage gain and continuous input. The two switch are controlled by interleaved driving method, which effectively reduces the current ripple on the input side. The passive clamp circuit absorbs leakage inductance energy, thereby suppressing voltage spikes on the switch. The current sharing characteristic between the two switching is achieved, and the zero current switching (ZCS) of the switching is completed, and the reverse recovery problem of the diode is alleviated. The working principle and steady-state characteristics of the converter were analyzed in detail, and the correctness of the theoretical analysis was verified by building a 400W experimental prototype.