Double-engine three-propeller type ship hybrid power system with composite energy storage

A hybrid power system and composite energy storage technology, which can be applied to engines using propulsion device combinations, mechanical gear transmissions, and propulsion-based emission reduction. Self-control and other issues, to achieve the effect of improving acceleration and deceleration performance and reversing performance, improving reliability and applicability, and improving economy and emissions.

Active 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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  • Double-engine three-propeller type ship hybrid power system with composite energy storage

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Embodiment Construction

[0031] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0032] combine figure 1 , the present invention is a three-machine dual-blade ship hybrid power system with a super capacitor, including a ship power grid 1, a super capacitor power conversion device 2, a super capacitor 3, a battery power conversion device 4, a battery 5, a ship load 6, a shore power Device 7, LNG tank 8, fuel cell power conversion device 9, generator power conversion device 10, LNG gasification heat exchange device 11, fuel cell 12, gas machine 13a, 13b, clutch 14a, 14b, 14c, 14d, pod Propellers 15a, 15b, gearbox 16, propeller 17, generator 18. The gas machines 13a, 13b are connected to the input end of the gearbox 16 through the clutches 14a, 14b, the propeller 17 and the generator 18 are connected to the output end of the gear box 16, and the LNG liquid storage tank 8 is connected to the gas machines 13a, 13b through the gasification heat excha...

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Abstract

The purpose of the invention is to provide a double-engine three-propeller type ship hybrid power system with composite energy storage. The system includes gas engines, a generator, a motor, pod propellers, and a natural gas storage and supply device. Output ends of the gas engines are connected to input ends of the gear case. An input end of the generator is connected to an output end of a gear case. The output end of the gear case is connected to the motor. Propellers are connected to an input end of the motor. The pod propellers are connected to a ship power grid. An electric power source is a supercapacitor, a fuel cell, the generator and a storage battery. The double-engine three-propeller type ship hybrid power system with the composite energy storage 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 generator and the motor, improves the utilization efficiency of fuel, reduces emission, improves the power response of the ships, improving an application range of the system, and further improves the utilization rate of fuel.

Description

technical field [0001] The invention relates to a ship power system, in particular to a ship hybrid power system. 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 future. Natura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/20B63H23/10
CPCY02T70/5218
Inventor 范立云鲁仲阳肖朝辉卢耀文徐超顾远琪
Owner HARBIN ENG UNIV
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