Abstract
SummaryThis paper proposes a new nonisolated multiport DC‐DC converter with two inputs and two outputs with different voltage levels. Different energy sources with distinct voltage‐current characteristics can be utilized as the input sources. Regarding multiple outputs, the proposed converter can be utilized in electric vehicles (EVs) to supply the DC traction motor and the auxiliary loads. The main advantages of the proposed converter include the high voltage gain with small values of the duty cycles, low normalized peak voltage stress (NPVS) across the semiconductors, and the continuous input currents. The voltage stress across the semiconductors is lower than the maximum output voltage. This feature makes it possible to use the switches with low turn‐on resistance and the diodes with reduced rating voltage. Performance principals of the proposed converter along with the steady‐state analysis, such as the derivation of the voltage gains, voltage and current stresses of the semiconductors, etc, are carried out. Experimental measurements made for the laboratory prototype of the proposed converter confirm the theoretical analysis.
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