Battery-powered watercraft with flywheel energy storage system and use method thereof

A technology for flywheel energy storage and ships, which is applied to engines using fuel cells, ship propulsion, electric components, etc. It can solve problems such as damage to fuel cell groups, difficulty in cold start, and shortened life cycle, so as to improve dynamic response speed and stability non-polluting environment and prolonging the working life

Pending Publication Date: 2019-10-08
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the output characteristics of the hydrogen fuel cell are very soft. When the output power is too low, the efficiency of the fuel cell will be seriously reduced, and the cold start is difficult, the dynamic response is slow, and the regenerative energy recovery cannot be realized. In addition, the load deman

Method used

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  • Battery-powered watercraft with flywheel energy storage system and use method thereof
  • Battery-powered watercraft with flywheel energy storage system and use method thereof

Examples

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Effect test

Embodiment 1

[0053] Example 1, such as figure 1 As shown, the present invention provides a battery-powered ship with a flywheel energy storage system, including: a power battery pack that provides power for ship navigation, a propulsion system, a power distribution device, a power electronic converter, a flywheel energy storage system, and a power Load 9, the power distribution device includes a main switchboard and a distribution board, and the main switchboard 4 is respectively connected with a power battery pack for providing power, a propulsion system, a flywheel energy storage system and a power electronic converter through a power electronic converter. Distribution board 10, where different types of power electronic converters are used to connect with the power battery pack, propulsion system, flywheel energy storage system and distribution board 10, which is used to connect electric loads 9, and the distribution board 10 provides power for the electric load 9, where the electric loa...

Embodiment 2

[0063] Example 2, such as figure 1 As shown, the present invention provides a method for implementing the battery-powered ship with a flywheel energy storage system described in 1, comprising the following steps:

[0064] When the ship sails normally, the hydrogen fuel cell set 2 supplies power to the propulsion system and other electrical loads 9, and the flywheel energy storage system works in the holding mode, neither charging nor discharging.

[0065] When the driving power required by the ship under acceleration, overload and other working conditions is greater than the power that the hydrogen fuel cell group 2 can provide, under the coordination of the energy management system, the flywheel energy storage system works in the discharge mode, and the reversible motor / generator 17 Working in the form of a generator, the rotating flywheel 14 relies on inertia to drive the generator 17 to generate electricity and release the stored electric energy. The flywheel energy storage...

Embodiment 3

[0069] Example 3, such as figure 2 As shown, the present invention provides a battery-powered ship with a flywheel energy storage system, including: a power battery pack that provides power for ship navigation, fuel power generation equipment, a propulsion system, a power distribution device, a power electronic converter, and a flywheel energy storage system and electric load 9, the power distribution device includes a main distribution board and a distribution board, and the main distribution board 4 is respectively connected with a power battery pack for providing electric power, fuel power generation equipment, Propulsion system, flywheel energy storage system and distribution board 10, where different types of power electronic converters are used to connect with the power battery pack, propulsion system, flywheel energy storage system and distribution board 10, the distribution board The board 10 is used to connect the electric load 9, and the distribution board 10 provid...

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Abstract

The invention provides a battery-powered watercraft with a flywheel energy storage system and a use method thereof. A power battery pack for providing power for ship navigation, a power distribution device, an energy management system, a power electronic converter, a flywheel energy storage system, a propulsion system and other electric loads. The power distribution device comprises a main distribution board and a distribution electric board, wherein the power battery pack, the propulsion system, the flywheel energy storage system and the distribution electric board are connected to the main distribution board through different types of power electronic converters, and other electric loads are connected to the distribution electric board. According to the battery-powered watercraft with flywheel energy storage system and use method thereof, the flywheel energy storage technology is applied to the battery-powered ship, the flywheel energy storage system and the power battery pack work in a coordinated mode through the energy management system, the dynamic response speed and stability of the power system of the battery-powered ship are improved, energy recovery during ship braking can be achieved, meanwhile, the power battery pack is protected, and the service lifetime of the power battery pack is prolonged.

Description

technical field [0001] The invention relates to the field of battery-powered ships, in particular, to a battery-powered ship with a flywheel energy storage system and a method for using the same. Background technique [0002] The world's shipping industry is increasingly challenged by high oil prices and environmental protection, and the pressure of energy conservation and emission reduction is increasing. Green ships have become the most important solution and the main direction of future ship development. As a new type of propulsion power for ships—battery power propulsion, it has become a frontier topic that countries around the world are studying in depth. Compared with traditional ship power systems, battery power ship electric propulsion systems have a wide range of speed regulation and are easy to install. , Easy maintenance, flexible layout, low vibration and noise, zero emission, good environmental protection performance, etc., are more superior. [0003] Taking hy...

Claims

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Application Information

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IPC IPC(8): B63H21/00B63H21/17H02K7/02
CPCB63H21/00B63H21/17B63H2021/003H02K7/025Y02E60/16
Inventor 李文华匡祺骥赵士铭岳英杰林珊颖韩凤翚周性坤张金男张君彦沈岩
Owner DALIAN MARITIME UNIVERSITY
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