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A dc-ac inverter device for power distribution in ship area

An inverter device and area technology, applied in circuit devices, emergency protection circuit devices, output power conversion devices, etc., can solve problems such as opening and sealing of pressure-resistant partition walls of ships, complicated and cumbersome cable laying work, etc., to improve reliability. Safety and security, high reliability, and the effect of ensuring safety

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-ac inverter device for power distribution in ship area
  • A dc-ac inverter device for power distribution in ship area
  • A dc-ac inverter device for power distribution in ship area

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Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] 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.

[0052] 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 present invention provides a DC-AC inverter device for regional power distribution in ships, which includes a dual power supply input selection unit, a charging current limiting unit, a DC input filter network, a power inverter, a sine wave filter and The three-phase isolation transformer, the sensor arranged in the power transmission circuit of the inverter device, and the core control unit connected with the signal input end of the inverter device through the signal output end, and connected with the signal output end of the sensor through the signal input end; Space vector pulse width modulation and voltage and current double closed-loop control realize the power conversion from DC700V to 1000V to AC380V in the ship's DC regional power distribution system, and provide three-phase AC power output for the AC load of the DC regional power distribution system, with fast response and fast operation Stable and reliable features, and remote monitoring through network communication, improve 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-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 Patents(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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