Gas-electric hybrid type ship hybrid power system with composite energy storage

A gas-electric hybrid and composite energy storage technology, which is applied in the direction of engines using propulsion device combinations, mechanical gear transmissions, etc., can solve problems such as speed acceleration, self-control, and battery capacity constraints that cannot achieve high performance.

Inactive Publication Date: 2019-06-14
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Gas-electric hybrid type ship hybrid power system with composite energy storage

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Embodiment Construction

[0044] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0045] combine figure 1 , the present invention is a gas-electric hybrid ship hybrid power system with a supercapacitor, including a supercapacitor 1, a storage battery 2, a ship load 3, a shore power device 4, a battery power transformation device 5, a supercapacitor power transformation device 6, a ship load Power grid 7, fuel cell power transformation device 8, fuel cell 9, generator power transformation device 10, LNG gasification heat exchange device 11, LNG liquid storage tank 12, gas machine 13a, 13b, generator 14a, 14b, clutch 15a, 15b, 15c, 15d, 15e, 15f, 15g gearbox 16, electric motors 17a, 17b, propellers 18a, 18b. Its connection relationship is: the gas machine 13a, 13b is connected to the input end of the gearbox 16 through the clutch 15a, 15d, the motor 17a, 17b is connected to the output end of the gearbox 16, the propeller 18a, 18b is connected to...

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Abstract

The purpose of the invention is to provide a gas-electric hybrid type ship hybrid power system with composite energy storage. The system includes gas engines, generators, motors, propellers, and a natural gas storage and supply device. Output ends of the gas engines are connected to input ends of the gear case. Input ends of the generators are connected to output ends of the gear case. The outputends of the gear case are connected to the motors. The propellers are connected to input ends of the motors. An electric power source is a supercapacitor, the generators and a storage battery. The gas-electric hybrid type ship hybrid power system with the composite energy storage can meet requirements of ships in various environment and working conditions through the adopted arrangement of a plurality of energy forms, form a composite energy storage system by using the supercapacitor, the generators and the storage battery, solves the problems of low electric energy quality of a ship power grid and short life of the storage battery, can quickly shore or release energy when a load of the system changes to prevent impact of the too fast energy change on the power grid, improves running efficiency of the gas engines, the generators and the motors, improves the utilization efficiency of fuel, reduces emission, and improves the power response of the ships.

Description

technical field [0001] The invention relates to the field of ship power systems, in particular to ship hybrid power systems. Background technique [0002] With the rapid rise of international oil prices and the implementation of increasingly stringent emission regulations, higher requirements are placed on the economy and emission of ships. Energy conservation and emission reduction have become an important task in the development of the national economy. Ships are high-energy-consuming means of transportation, and their energy-saving and emission-reduction technologies have become one of the hotspots of everyone's 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 of which is the use of alternative energy sources. Natural gas as engine fuel is an inevitable trend in the development of marine engines in the fut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/20B63H23/10
Inventor 范立云肖朝辉张恒熙卢耀文徐超
Owner HARBIN ENG UNIV
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