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A High Step-Up Three-Port Dc-Dc Converter for Stand-Alone PV/Battery Power Systems
2014
International Journal of Emerging Trends in Electrical and Electronics
unpublished
The proposed topology includes 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. The operation mode does not need to be changed when a transition between charging and discharging occurs. Moreover, tracking maximum
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