Marine propulsion system and power utilization system

The utility model discloses a marine propulsion system and a power utilization system. The marine propulsion system comprises a diesel generating set, a main distribution board, a power utilization apparatus and a power utilization controller, wherein the power utilization controller is used for controlling electric energy produced by the diesel generating set to reach the power utilization apparatus according to the power utilization condition of the power utilization apparatus, and providing electric energy for the power utilization apparatus according to the practical power utilization requirement. According to the technical scheme, the diesel generating set is used for replacing a main diesel in the prior art, electric energy produced by the diesel generating set is used as a power source of the power utilization apparatus of a whole marine, and particularly, in the marine propulsion system, the power utilization apparatus is a propeller; the power utilization controller of the marine is used for providing electric energy for the power utilization apparatus according to the practical power utilization requirement, the unified distribution of energy sources of the whole marine is realized, the energy sources of the whole marine are reasonably distributed, and thus the aims of saving energy sources and reducing operation cost are achieved.