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

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...

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 demand fluctuation will damage the fuel cell group, Reduce its life cycle; similarly, for a battery-powered ship powered by a single battery, there will often be large fluctuations in power during operation. At this time, the single battery cannot meet the performance requirements and there is a problem of shortened life

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