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Ship-borne power source

A technology of power supply and auxiliary power supply, which is applied in the direction of conversion equipment for intermediate conversion to direct current, which can solve the problems that ordinary power supplies are difficult to meet, achieve the effects of small voltage and current stress, reduce switching loss, and increase output capacity

Inactive Publication Date: 2013-12-04
XIAN RVNUO NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary power supply is difficult to meet the above requirements

Method used

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  • Ship-borne power source
  • Ship-borne power source

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Embodiment Construction

[0013] Such as figure 1 As shown, the purpose of the present invention is achieved in this way, a shipboard power supply is characterized in that it includes at least: an input filter 2, a DC / DC conversion circuit 3, a rectification filter circuit 4, a detection circuit 6, and a PWM control circuit 7 1. The front-stage DC / DC unit and DC / AC unit formed by the auxiliary power supply 8, the AC input 1 is divided into two channels after being filtered by the input 2, and one channel is input to the DC / DC conversion circuit 3 and the rectification filter circuit 4, and then output to the load; The other one is input to the input terminal of the auxiliary power supply 8, and the auxiliary power supply 8 generates the working voltage required by the PWM control circuit 7, and supplies the voltage to the PWM control circuit 7, and the DC output 5 of the rectification and filtering circuit 4 is electrically connected to the voltage and current detection circuit 6 , the output end of th...

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PUM

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Abstract

The invention relates to a ship-borne power source. The ship-borne power source at least comprises a preceding stage DC / DC (Direct Current) unit which is composed of an input filter, a DC / DC converting circuit, a rectifier filter circuit, a detection loop, a PWM (Pulse-Width Modulation) control circuit and an auxiliary power source, and a DC / AC (Alternating Current) unit. The AC input after passing through the input filter is divided into two paths; one path after being input to the DC / DC converting circuit and the rectifier filter circuit is output to a load while the other path is input to the input end of the auxiliary power source; the auxiliary power source generates a working voltage needed by the PWM control circuit and provides the voltage to the PWM control circuit; the DC output of the rectifier filter circuit is electrically connected to a voltage and current detection loop; the output end of the voltage and current detection loop is electrically connected to the PWM control circuit; the PWM control circuit controls the DC / DC converting circuit to output a constant voltage or constant current output; the output of the DC / DC converting circuit after passing through the rectifier filter circuit inputs DC340V DC voltage to the DC / AC unit. The ship-borne power source has the characteristics of good safety, high reliability and the like.

Description

technical field [0001] The invention relates to a design scheme of a shipboard power supply, in particular to a shipboard power supply. Background technique [0002] As an AC source that directly supplies power to the upper system, the shipboard power supply is required to have the advantages of high voltage stability, frequency stability, small waveform distortion, and strong load capacity. It is difficult for ordinary power supplies to meet the above requirements. [0003] The power supply adopts the inductor current control inner loop with load current feed-forward control, which not only realizes the cut-off control of the power supply output, but also enables the system to have the ability to adjust the load in time, and the dynamic response speed of the system is greatly improved; the inductor current inner loop The adoption of the system also enables the system with an output transformer, the primary current of the transformer is controlled in real time, effectively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/40
Inventor 龚丽君
Owner XIAN RVNUO NEW ENERGY
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