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Ship electric propulsion system with fuel cell and application method thereof

A fuel cell system and electric propulsion technology, applied in ship propulsion, transportation fuel cell technology, propulsion components, etc., can solve the problems of ship loss of power, ship navigation safety accidents, etc., and achieve the effect of environmental protection

Inactive Publication Date: 2011-08-10
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the supercapacitors and batteries used as the main power supply of the ship need to be charged and stored on the shore, so the transfer of emissions is achieved objectively; Cause the ship to lose power, which will cause serious ship navigation safety accidents

Method used

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  • Ship electric propulsion system with fuel cell and application method thereof
  • Ship electric propulsion system with fuel cell and application method thereof
  • Ship electric propulsion system with fuel cell and application method thereof

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0022] A block diagram of the composition and structure of a ship electric propulsion system with a fuel cell as the main power source is shown in figure 1 shown.

[0023] (1) Composition of fuel cell-powered ship electric propulsion system

[0024] The ship electric propulsion system with the fuel cell as the main power source is mainly composed of the primary power grid 300 of the ship power supply system and the secondary power grid 400 of the electric propulsion load in terms of circuit structure.

[0025] The primary grid 300 is a direct current grid, which is connected with the fuel cell systems 111 and 211 and the energy storage battery pack 36 . According to the specific requirements of the design of the ship's electric propulsion syst...

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Abstract

The invention discloses a novel ship electric propulsion system which adopts a power supply mode of taking a fuel cell as the main power supply and an energy storing battery pack as assistance. In the process from cold start to normal operation of a fuel cell system, or when the fuel cell system cannot output electric energy due to sudden failure, the electric propulsion system supplies emergency power by use of the energy storing battery; after the fuel cell system enters the normal operation state, the energy storing battery is in a floating charge state which can output electric energy anytime once the fuel cell system cannot supply power normally; in the case of sudden load reduction during the ship control or sudden effect of wind, wave or current, the electric propulsion system generates transient reverse power and produces regenerative electric energy; such regenerative electric energy is absorbed by the energy storing battery pack in the floating charge state so as to ensure the operation safety of the ship electric propulsion system; and by recycling the regenerative electric energy, the energy is saved. Through the invention, zero emission of the ship can be realized, and the ship electric propulsion system is a real green ship electric propulsion system.

Description

technical field [0001] The invention relates to the technical field of ship electric propulsion systems, in particular to a fuel cell-powered ship electric propulsion system, and the invention also relates to an application method of the fuel cell-powered ship electric propulsion system. Background technique [0002] Electric propulsion system is an advanced ship propulsion method. This propulsion method can improve the technical and economic performance of the ship, has the characteristics of good maneuverability, energy saving and environmental protection, can reduce the exhaust gas emission of the ship, reduce the fuel energy consumption of the ship, and can obtain better power characteristics at the same time. Chinese patent 201010300192.x discloses an electric propulsion system including a diesel engine-generator set, a power distribution system, a propulsion motor and a propeller; Chinese patent 200810034693.0 discloses a control device and a control method for an elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/17B60L11/18
CPCY02T90/38Y02T90/46Y02T70/5209Y02T10/70Y02T70/50Y02T90/40
Inventor 褚建新康伟徐为民牛王强刘昭
Owner SHANGHAI MARITIME UNIVERSITY
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