Design and implementation of an interleaved switched-capacitor DC-DC converter for energy storage systems

In this paper, a new interleaved switched-capacitor bidirectional DC-DC converter with a high step-up/step-down voltage gain is proposed. In this converter, two inductors, four capacitors and four semiconductors are used. The voltage gain of the proposed converter is higher than conventional converters such as buck-boost, boost, Cuk and is compared with some new converters. In order to reduce the ripple of the current through the low-voltage side, an interleaved structure is adopted in the low-voltage side of this converter. Furthermore, the equations of the voltage, the voltage stress for switches and currents are presented in different modes. To verify the operation of the proposed converter, the experimental results are provided.

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Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).