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Current transforming device and control method thereof

A technology of a converter device and a control method, which is applied to the output power conversion device, the irreversible AC power input is converted into the DC power output, electrical components and other directions, and can solve the problems of power generation loss in the renewable energy system.

Inactive Publication Date: 2014-02-12
AU OPTRONICS CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, when the overvoltage condition is not caused by an abnormality of the mains power, but is caused by the voltage difference effect of the line resistance, the converter will often repeatedly operate between entering the normal power supply mode and tripping the protection mechanism. The loss of electricity generation to renewable energy systems is considerable

Method used

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  • Current transforming device and control method thereof
  • Current transforming device and control method thereof
  • Current transforming device and control method thereof

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Embodiment Construction

[0031] The content of the present invention can be explained through the following embodiments, but the embodiments of the present invention are not intended to limit the present invention to be implemented in any specific environment, application or method as described in the following embodiments. Therefore, the descriptions of the following examples are only to illustrate the present invention, but not to limit the present invention. In the following embodiments and drawings, elements not directly related to the present invention have been omitted and not shown, and the size ratios between the elements shown in the drawings are only for understanding, and are not intended to be limited to The actual implementation ratio of the present invention.

[0032] As used herein, "connected" or "coupled" may refer to two or more elements that are in direct physical or electrical contact with each other, or indirect physical or electrical contact with each other, and "connected" may a...

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Abstract

The invention discloses a current transforming device and a control method of the inversion device. The current transforming device comprises a current transformer which is used for converting electric energy into an output current so as to generate an output end voltage. When the output current rises, the output end voltage correspondingly rises. The current transformer is provided with a control unit used for controlling the current transformer to reduce the output current or maintain the current output current when the output end voltage rises and enters the guarding range, and therefore the phenomenon that when the output end voltage rises and exceeds a voltage threshold value, the current transformer enters a tripping protective mechanism is avoided.

Description

technical field [0001] The present invention relates to a flow conversion device and a control method thereof, and in particular to a flow conversion device used in a renewable energy system and a control method thereof. Background technique [0002] In recent years, the use of renewable energy has gradually become one of the important technologies in today's society. In order to effectively use renewable energy, it is usually necessary to use an inverter (inverter) to convert the electric energy generated by the renewable energy into effective alternating current (AC) current, and then feed it into the grid through a feeder. [0003] However, when the feeder is aging and the temperature rises, the impedance of the feeder will increase, so that the fed-in current will generate a non-negligible voltage difference at both ends of the feeder, which will increase the output voltage of the converter. (Voltage above the duty cut-off point). Generally speaking, traditional conver...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32
CPCH02M1/32H02M7/04
Inventor 简源伯
Owner AU OPTRONICS CORP
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