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A dc-dc chopper device for ship area power distribution

A regional and ship technology, applied in the field of DC-DC chopper devices, can solve the problems of complicated and cumbersome cable laying work, opening and sealing of ship pressure-resistant partitions, etc., to improve reliability and safety, prevent large current impact, High reliability effect

Active Publication Date: 2021-08-10
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only brings the complexity and tediousness of cable laying work, but also creates the problem of sealing the opening of the ship's pressure-resistant bulkhead

Method used

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  • A dc-dc chopper device for ship area power distribution
  • A dc-dc chopper device for ship area power distribution
  • A dc-dc chopper device for ship area power distribution

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Experimental program
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Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] see figure 1 , the embodiment of the present invention includes a dual power supply input selection unit, a charging current limiting unit, an LC filter network, a high-frequency inverter unit, a high-frequency isolation transformer, a high-frequency rectifier unit, and a DC output filter network connected in series in sequence, and is arranged in the chopper The sensor in the power transmission circuit of the device, and the core control unit connected with the signal input end of the high-frequency inverter unit through the signal output end, and connected with the signal output end of the sensor through the signal input end.

[0069] The dual power input selection unit includes a guiding diode, and the power input terminal of the dual power input selection unit is connected to a dual-channel DC input power supply, which uses...

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Abstract

The present invention provides a DC-DC chopping device for regional power distribution in ships, including a dual power supply input selection unit, a charging current limiting unit, an LC filter network, a high-frequency inverter unit, a high-frequency isolation transformer, The high-frequency rectifier unit, the DC output filter network, the sensor set in the power transmission circuit of the chopper device, and the signal output terminal connected to the signal input terminal of the chopper device, and the signal output terminal connected to the sensor through the signal input terminal Core control unit; through SVPWM technology and double closed-loop control of voltage and current, the power conversion from DC700V to 1000V to DC220V in the ship's DC regional power distribution system is realized, and DC220V DC power output is provided for the DC load of the DC regional power distribution system, with fast response, The characteristics of stable and reliable operation, and remote monitoring through network communication have improved the reliability and safety of the power supply of the ship's regional power distribution system.

Description

technical field [0001] The invention belongs to the technical field of ship DC regional power distribution, and in particular relates to a DC-DC chopper device for ship regional power distribution. Background technique [0002] In the current mainstream ship power system, the energy required by the power load is fed by cables through the centralized power distribution center on the ship, resulting in thousands of cables interspersed in various parts of the ship. This not only brings the complexity and tediousness of cable laying work, but also produces the problem of sealing the opening of the ship's pressure-resistant bulkhead. The regional power distribution system can effectively solve this problem. Only the main busbar passes through the waterproof and pressure-resistant partition, which saves a lot of distribution board feeder cables, and the reduction of cable loss and weight brings additional benefits. [0003] The DC regional power distribution system is based on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335H02J9/06H02J13/00H02H7/12
CPCH02H7/1213H02J9/061H02M3/335
Inventor 刘博胡锴丁若星彭凌王伟
Owner CHINA SHIP DEV & DESIGN CENT