Radial grid structure and control method of pure battery powered ship integrated power system

A power system and power grid structure technology, applied in battery circuit devices, ship propulsion, electric vehicles, etc., can solve problems such as limiting system operation flexibility, reducing shore power supply efficiency, increasing resource consumption, etc., to achieve isolation and online maintenance , Improve the system performance cost ratio, improve the effect of system reliability
CN113364063BActive Publication Date: 2021-11-12湖北东湖实验室
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖北东湖实验室
Publication Date
2021-11-12

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Abstract

The invention relates to the technical field of ship power systems, in particular to a radial grid structure and a control method of a pure battery-powered ship comprehensive power system. Its grid structure includes DC busbar, AC busbar, battery pack, DC / DC converter, DC / AC inverter, propulsion frequency converter / rectification and charging integrated device, DC / DC converter input terminal and battery pack There is an isolating switch connected between them, a first DC switch assembly is connected with the DC busbar, a second DC switch assembly is connected between the output end of the DC / DC converter and the DC busbar, and at least one section of the DC busbar passes through The sequentially connected fourth DC switch assembly, DC / AC inverter, and first AC circuit breaker are connected to the first AC busbar, and each section of DC busbar passes through the sequentially connected third DC switch assembly, propulsion frequency converter / rectifier The integrated charging device and the first AC contactor are connected to a section of the second AC busbar, and each section of the second AC busbar is connected to a propulsion motor through a second AC contactor.
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Description

technical field

[0001] The invention relates to the technical field of ship power systems, in particular to a radial grid structure and a control method of a pure battery-powered ship comprehensive power system. Background technique

[0002] With the in-depth implementation of my country's energy-saving emission reduction, energy production and consumption revolution policies, my country's energy, transportation and other fields have ushered in major opportunities for development. In terms of inland ships, pure battery-powered ships have the advantages of zero emission, no pollution, quietness, and good maneuverability. However, there are generally three problems in the grid structure of the integrated power system of the existing and under research pure battery powered ships:

[0003] 1) Equipment online maintenance is difficult. The existing integrated power system for pure battery-powered ships mainly adopts a low-voltage DC radial grid structure with fast fuses as prot...

Claims

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