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DC-DC chopping device for ship regional power distribution

A regional and marine technology, applied in the field of DC-DC chopper devices, which can solve the problems of opening and sealing of pressure-resistant partition walls of ships, complicated and cumbersome cable laying work, etc.

Active Publication Date: 2020-03-06
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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  • DC-DC chopping device for ship regional power distribution
  • DC-DC chopping device for ship regional power distribution
  • DC-DC chopping device for ship regional 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 invention provides a DC-DC chopping device for ship regional power distribution, which includes a dual-power 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 rectifying unit, and a DC output filter network which are successively connected in series; a sensor disposed in a powertransmission circuit of a chopping device; and a core control unit connected to the signal input terminal of the chopping device through a signal output terminal and connected to the signal output terminal of the sensor through a signal input terminal. The DC-DC chopping device realizes the energy conversion from DC700V-1000V to DC220V in a ship DC regional power distribution system by means of SVPWM and voltage and current double closed-loop control, provides a DC220V power output for the DC load of the DC regional power distribution system, has fast response, stable operation and reliable characteristics, achieves remote monitoring through network communication, and improve the reliability and security of power supply in the ship 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 Applications(China)
IPC IPC(8): H02M3/335H02J9/06H02J13/00H02H7/12
CPCH02H7/1213H02J9/061H02M3/335
Inventor εˆ˜εšθƒ‘ι”΄δΈθ‹₯ζ˜Ÿε½­ε‡ŒηŽ‹δΌŸ
Owner CHINA SHIP DEV & DESIGN CENT
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