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Control method and device of voltage converter and voltage control system

A technology for voltage converters and control devices, which is applied in the field of voltage control systems, devices, and control methods for voltage converters, and can solve problems such as time extension and inability to adjust the output current of voltage converters

Active Publication Date: 2021-01-29
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing control scheme has a long time delay in the entire regulation process, and cannot adjust the output current of the voltage converter in time

Method used

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  • Control method and device of voltage converter and voltage control system
  • Control method and device of voltage converter and voltage control system
  • Control method and device of voltage converter and voltage control system

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Embodiment Construction

[0032] The characteristics and exemplary embodiments of various aspects of the application will be described in detail below. In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only intended to explain the present application rather than limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and d...

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Abstract

The invention discloses a control method and device of a voltage converter and a voltage control system. The control device comprises: a first control module, which is used for acquiring a current reference value according to the output voltage of a voltage converter and a given voltage value; a current modulation module, which is used for reducing a current reference value under the condition that the output current of the voltage converter is greater than a first current threshold value; and a second control module, which is used for controlling the output current of the voltage converter according to the reduced current reference value and the output current. According to the embodiment of the invention, the output current of the voltage converter can be adjusted in time when the outputcurrent of the voltage converter is over-current.

Description

technical field [0001] The present application belongs to the field of electric power, and in particular relates to a control method, device and voltage control system of a voltage converter. Background technique [0002] With the development of power technology, voltage converters can be used to convert voltage. For example, the conversion may be performed between AC voltage-AC voltage, AC voltage-DC voltage or DC voltage-DC voltage. [0003] In order to achieve precise control of voltage conversion, the output voltage and output current of the voltage converter can be used as feedback signals, and the feedback signals can be returned to the input terminal of the control in a certain way, and the control influence can be exerted on the input terminal. [0004] However, in the existing control scheme, the time delay of the entire control process is long, and the output current of the voltage converter cannot be adjusted in time. Contents of the invention [0005] The vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M1/32
CPCH02M1/00H02M1/32H02M1/0025H02M1/0006H02M7/48H02M7/5387H02M7/53803H02M1/0009
Inventor 何炜琛高锦凤但志敏侯贻真
Owner JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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