Dual-motor coaxial gas-electric hybrid ship power system

Abstract

The purpose of the invention is to provide a dual-motor coaxial gas-electric hybrid ship power system. The system includes a gas engine, a generator, motors, a storage battery, a fuel cell, clutches,a gear case, a propeller, a natural gas storage and supply device, substation devices, a shore power device, a ship power grid, and a ship load. The gas engine is connected to the gear case through the clutch. The first motor and the second motor are connected to the gear case through the clutches. The generator is connected to an output end of the gear case. The two motors are connected to each other through a shaft. An electric power source is the storage battery, the generator and the fuel cell. The dual-motor coaxial gas-electric hybrid ship power system adopts a plurality of energy form arrangements, has a plurality of working modes, can meet requirements of ships in various environment and working conditions, can maintain the gas engine and the motors in a high efficiency zone all the time, reduces the fuel consumption and discharge of the gas engine, improves the power response of ships, and enlarges seaworthiness of the ships.

Description

Technical field [0001] The invention relates to a ship power system, specifically a ship hybrid power system. Background technique [0002] With the rapid rise of international oil prices and the implementation of more and more stringent emission regulations, this has put forward higher requirements for the economy and emissions of ships, and energy conservation and emission reduction have become an important task in the development of the national economy. Ships are highly energy-consuming means of transportation, and their energy-saving and emission-reduction technologies have become one of the hot spots of attention and research. [0003] As a future environmental strategy, we aim to reduce energy consumption and CO2, SOx, NOx and PM emissions. There are many ways to reduce pollution and emissions from ships. The best way is to use alternative energy sources. Natural gas as the fuel of the engine is an inevitable trend in the development of ship engines in the future. Natural ...

AI Technical Summary

Problems solved by technology

However, due to the influence of power generation methods, power density and energy storage technology, pure electric ships at this stage cannot achieve high-performance speed, acceleration and self-control, and their endurance is also limited by their battery capacity.

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