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In this paper a power electronic interface (PEI) that integrates up to two renewable energy sources is presented. The generation of the different distributed sources is controlled through the DC link terminal voltage and the AC terminal voltage of the voltage source converter (VSC). The renewable source can be controlled to supply electricity to the local load and export the exceeding energy to the...
This paper presents the initial investigations in selecting the topology of the power electronic interface for an energy storage system for power levelling applications based on a novel storage device, the supercapattery. The particularities of the supercapattery device are summarized leading to a multistage power converter structure. A review of the two stage DC/DC converter structure to interface...
Low-voltage ride-through (LVRT) requirements demand wind-power plants to remain connected to the network in presence of grid-voltage dips. Most dips present positive-, negative-, and zero-sequence components. Hence, regulators based on symmetrical components are well suited to control grid-connected converters. A neutral-point-clamped topology has been considered as an active front end of a distributed...
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