SSRG International Journals
Integrated multiport converters are becoming a big requirement now-a-days compared to conventional conversion topologies. In this paper, a three-port DC-DC converter combining PhotoVoltaic (PV) and battery power for high step-up applications is proposed. The proposed converter consists of five power switches, two coupled inductors, and two active-clamp circuits. The coupled inductors are used to achieve high step-up voltage gain and to reduce the voltage stress of input side switches. Two sets of active-clamp circuits are used to recycle the energy stored in the leakage inductors and to improve the system efficiency.