Abstract
AbstractIt is known that modern sea-going ships are characterized by a high degree of their electrification, and one of the main trends in the development of ship power industry is the growth of the capacity of ship power systems. In this case, the total length of cable lines reaches several hundred kilometers. Therefore, issues related to the study of electricity losses in ship electrical networks (SES) and ship power systems in general, their mathematical description, and ways to reduce these losses become relevant. In addition, the issue of increasing the efficiency of using the power plants of small-tonnage coastal and intra-port navigation vessels, as well as river vessels operating a significant proportion, of working time in maneuvering and share modes, is urgent. The operation of power plants in such modes is extremely inefficient and is characterized by an increased specific fuel consumption and large harmful emissions into the atmosphere. The article discusses the mathematical relationships and factors that determine energy losses. A method for increasing the efficiency of ship power plants of small-tonnage ships of coastal and intra-port navigation, as well as river ships is proposed.KeywordsCable linesPower lossesElectric power systemHybrid power plantsShipEnergy saving
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