With the steady promotion of the dual-carbon goal

more and more renewable energy sources are connected to the low-voltage user side to achieve the low-carbon green transformation of power system. However

considering the inherent volatility and intermittency of renewable energy

its access voltage and DC bus voltage level usually do not match

it is therefore necessary to design a boost converter to achieve a wide range of voltage conversion of renewable energy converter. Based on this

a kind of over voltage gain boost type DC/DC converter is designed in this paper. For the proposed converter

the inductor and capacitor configuration of regenerative boost feed switch is adopted. This structure enables the proposed converter to produce extremely high voltage gain at a low duty cycle

and the switching stress of all power semiconductor diodes in the converter is low. In addition

the steady-state of the proposed converter is analyzed and compared with the existing research results in this paper. Finally

the feasibility and applicability of the proposed method are verified by experimental analysis.