Integrated power system for battery-only electric ship

Abstract

An integrated power system for a battery-only electric ship comprises a hull of the battery-only electric ship, wherein the hull comprises a plurality of groups of energy storage power supply systems,electric propulsion systems, propellers, inverters and pure sine wave devices mounted in a cabin body of a ship body; the plurality of groups of energy storage power supply systems comprise supercapacitor modules and lithium battery modules and used for supplying power to the entire ship; the electric propulsion systems comprise water-cooled-motor-driven variable-frequency devices and variable-frequency motors and used for controlling the power supply systems to supply power to the propellers; the propellers are straight-blade omnidirectional propellers combining rudders with paddles and usedfor propelling the ship to navigate and controlling the course; and the inverters and the pure sine wave devices are used for inverting and filtering DC to AC to obtain the three-phase three-wire ACpower supply with 380 V and 50 Hz and the single-phase two-wire AC power supply with 220 V and 50 Hz for the entire ship. The integrated power system for the battery-only electric ship has higher integration, driving force and flexibility, so as to has a broader application prospect in the field of ships.

Description

technical field [0001] The invention relates to the field of electric ships, in particular to a power integration system for pure electric ships. Background technique [0002] As a new type of ocean or river transportation, pure electric ships have the advantages of saving energy, being quiet and not polluting water bodies, and will be widely used in the future. The existing electric boats are basically transformed on the existing internal combustion engine hull, and the power mechanism is transformed into an electric or hybrid structure, but most of them use electric motors as auxiliary power, such as using electric drive systems for fine-tuning when berthing. hull. At present, pure electric ship types are concentrated on small ships, such as speedboats. Some manufacturers are now trying to build large-tonnage pure electric ships, but due to the complexity of the integrated R&D technology for the entire ship's power system, and the need for a new design for the entire shi...

AI Technical Summary

Problems solved by technology

Now some manufacturers are trying to build large-tonnage pure electric ships, but due to the complex research and development technology of the whole ship's power system, and the new design of the whole ship's electrical equipment layout and hull structure, it is basically still in the experimental stage. At this stage, there is no pure electric power system that can be applied to large-scale hulls above 1,000 tons

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