Ship electrical system simulation
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Several ship systems were evaluated as part of the "HTS benefits to ship system" study funded by the U.S. Office of Naval Research (ONR) in 2004. A commercially available power system simulation software application called PSCAD/sup /spl trade// was used to evaluate the dynamic response of the selected ship electrical systems. The generic, large combatant ship electric systems reported here consist of the following: 1) two 36.5 MW propulsion motors with their variable speed drives (VSDs), 2) two 36 MW generators with gas turbines, and 3) Two 4 MW auxiliary generators for auxiliary loads. Each system studied employed rotating machines that were built using high-temperature superconductor (HTS) wires. The PSCAD software enabled modeling of electrical systems with full transient details to study the dynamic response of the electric system over a wide frequency range. The default models and standard features available in PSCAD served all the requirements. A number of fault and load scenarios were studied. The goal of this simulation work was to develop a model for studying the dynamic behavior of the ship electrical system. This goal was successfully achieved.
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