The analysis of the electric power quality indicators for electrical power system on board ship is made. Electric power quality refers to the various properties of electric power, which together ensure the normal operation of ship consumers. Any ship electrical power system (SEPS) is characterized by limited capacity and the presence of a full cycle of generation, transmission, distribution and consumption of electric power. The consequences of deviations in the quality of electric power indicators are determined. Ways to improve the quality of electricity on board the ship are considered. A simulation model of the ship's electric power system has been developed to analyze the harmonic components of the voltage and current of the busbars of the main switchboard. A carried-out simulation showed the presence of interharmonic current components during the operation of reciprocating compressors’ powerful electric drives. Methods for eliminating distortion by using boosters and active current filtering systems are proposed.
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