Use of Transformer Multi-Level Inverters in Parallel Operation of Marine Generating Sets with PMSG

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The increase of energy efficiency in autonomous marine generating sets improves the overall efficiency of the ship’s propulsion. One of the methods to increase the efficiency of generating sets is the use of synchronous machines with permanent magnets in sets as generators (PMSG). The use of PMSG in connected with the need to install power converters in order to maintain constant parameters of the supply voltage and the possibility of reactive power’s distribution between generating sets that work in parallel. The article presents the possibility of using transformer multi-level inverters in parallel operation of marine generating sets with PMSG. On the basis of the results of simulation tests, the theoretical assumptions for the possibilities of active and passive power adjustment in the parallel operation of generating sets were confirmed.

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