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This paper presents a novel integrated dc/dc topology with a step-up output and a step-down output. A new control scheme is developed to regulate both outputs simultaneously. Compared with discrete configurations, the proposed integrated converter utilizes a lower number of switches due to the reuse of components. The converter characteristics are studied comprehensively. It is demonstrated that all...
This paper proposes a Flyback-based Input-Series Output-Parallel (ISOP) Auxiliary Power Supply (APS), intended to feed the control system of the cells of a Solid-State Transformer (SST). The SST topology is based on a modular Multiport Multilevel Converter (MMC). Energization of the cells auxiliary circuitry is not trivial due to the high voltages involved (tens of kV for the electric power distribution...
This paper proposes the concept of integrating the energy storage within a Medium Voltage to Low Voltage solid state substation in order to provide new features compatible with the requirements from future more intelligent grids. The principles for the system development are presented and the role of each subsystem is explained. The experimental evaluation of the 1.9kVrms/25kVA substation with 1.5MJ...
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