Implementation of High step-up Three-port DC-DC Converter for Stand-Alone PV-Battery Hybrid Power Systems

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Provided by: SSRG International Journals
Topic: Hardware
Format: PDF
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.
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