Propeller power supply switching system

A technology of power switching and switching system, applied in emergency power supply arrangement, electrical components, circuit devices, etc., can solve problems such as increasing design difficulty and increasing project cost, so as to increase the number of available thrusters, improve ship positioning capability, and prevent failures The effect of spreading and spreading

CN113991829APending Publication Date: 2022-01-28SHANGHAI ZHENHUA HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-01-28

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Abstract

The invention provides a propeller power supply switching system which is applied to a dynamic positioning ship, and the ship comprises a first generator set and a second generator set respectively arranged in a first cabin and a second cabin; a first medium-voltage main distribution board and a first low-voltage main distribution board arranged in a first distribution board cabin, wherein the first medium-voltage main power distribution board is connected with the first low-voltage main power distribution board through a first feed switch; a second medium-voltage main power distribution board and a second low-voltage main power distribution board located in a second distribution board cabin, wherein the second medium-voltage main power distribution board is connected with the second low-voltage main power distribution board through a second feed switch; a propeller local auxiliary power distribution board located in a propeller cabin; and a propeller switching cabinet which is located in the propeller cabin and provided with a first switching switch and a second switching switch, wherein the first switching switch is connected with the first medium-voltage main distribution board, and the second switching switch is connected with the second medium-voltage main distribution board. Existing equipment is utilized, and meanwhile, the ship positioning capability is effectively improved in a mode of switching the power distribution board when a fault occurs.
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Description

technical field

[0001] The invention relates to the field of dynamic positioning ships, in particular to a thruster power switching system. Background technique

[0002] Due to its positioning capabilities in various water depths and sea conditions, dynamic positioning systems are widely used on various engineering ships such as drilling ships, pipe-laying ships, cable-laying ships, platform support ships, diving support ships, and wind power installation ships. The dynamic positioning ship needs to maintain the positioning capability under the maximum single point failure. The maximum single point failure of the dynamic positioning ship of DP2 and below usually refers to the failure of a certain moving part. For the DP3 ship, its definition is further extended to any Failure caused by fire or flooding in the compartment.

[0003] Correspondingly, there are two design directions to improve the ship positioning capability: (1.) Increase the available power of the propeller w...

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Embodiment Construction

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0046] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different...