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SHIPBOARD POWER SYSTEMS RECONFIGURATION : A COMPARED ANALYSIS OF STATE-OFTHE-ART APPROACHES

The Shipboard Power System (SPS) supplies power to navigation, communication, operation and critical systems. The capability of facing single or multiple faults is a mandatory issue for any vessel. This paper reports a systematic comparison on SPS reconfiguration methods, where most recent contributions to the field have been classified according to taxonomy of criteria, such as: reconfiguration techniques, reconfiguration sub-problems, and characteristics of the electrical layer. The reconfiguration procedure should be timely in restoring power in faulted areas of the ship, also to avoid subsequent cascade failures; the reconfiguration sub-problems involve priority definition among loads and operations, strongly depending from the electrical layers and the fault diagnosis methodology; moreover, reconfiguration techniques include several different control architectures and load priority schemas. Literature results encompass several case studies, and employed methods have been deeply analysed. Finally, some limits of the current state of the art have been identified.