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DC-AC inverter device for ship regional power distribution

A technology of inverter device and area, which is applied to circuit devices, emergency protection circuit devices, output power conversion devices, etc. Safety and security, preventing large current shocks, and fast response

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-AC inverter device for ship regional power distribution
  • DC-AC inverter device for ship regional power distribution
  • DC-AC inverter device for ship regional power distribution

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] see figure 1 , the embodiment of the present invention includes the dual power supply input selection unit, the charging current limiting unit, the DC input filter network, the power inverter, the sine wave filter and the three-phase isolation transformer that are connected in series in sequence, and are arranged in the power transmission circuit of the inverter device The sensor in the sensor, and the core control unit are respectively connected to the signal input terminals of the charging current limiting unit and the power inverter through the signal output terminals, and connected to the signal output terminals of the sensor through the signal input terminals.

[0053] 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-cha...

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Abstract

The invention provides a DC-AC inverter device for ship regional power distribution, which includes a dual-power input selection unit, a charging current limiting unit, a DC input filter network, a power inverter, a sine wave filter, and a three-phase isolation transformer which are successively connected in series; a sensor disposed in a power transmission circuit of an inverter device; and a core control unit connected to the signal input terminal of the inverter device through a signal output terminal and connected to the signal output terminal of the sensor through a signal input terminal.The DC-AC inverter device realizes the energy conversion from DC700V-1000V to AC380V in A ship DC regional power distribution system by means of space vector pulse width modulation and voltage and current double closed-loop control, provides a three-phase AC power output for the AC 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-AC inverter device used 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/537H02J9/06H02J13/00H02H7/12
CPCH02H7/1225H02J9/061H02M7/537
Inventor 刘博胡锴丁若星彭凌王伟
Owner CHINA SHIP DEV & DESIGN CENT
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