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Power derating method and device of power conversion circuit, terminal and storage medium

A technology for converting circuits and power, which is applied to output power conversion devices, inverting conversion equipment, electrical components, etc., can solve problems such as poor protection effect of power devices, and achieve the effect of improving power protection effect.

Pending Publication Date: 2022-04-12
SHENZHEN KEHUA HENGSHENG TECH
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  • Claims
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Problems solved by technology

[0004] The invention provides a power derating method, device, terminal and storage medium of a power conversion circuit to solve the problem of poor protection effect on power devices

Method used

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  • Power derating method and device of power conversion circuit, terminal and storage medium
  • Power derating method and device of power conversion circuit, terminal and storage medium
  • Power derating method and device of power conversion circuit, terminal and storage medium

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Embodiment Construction

[0043] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0045] see figure 1 , which shows the implementation flow chart of the power derating method of the power conversion circuit provided by the embodiment of the present invention, which is described in ...

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Abstract

The invention provides a power derating method and device of a power conversion circuit, a terminal and a storage medium. The method comprises the following steps: acquiring parameter values of a plurality of thermal risk influence parameters of the power conversion circuit; determining an independent derating coefficient corresponding to the parameter value of each thermal risk influence parameter according to the parameter value of each thermal risk influence parameter and a first preset relationship corresponding to each thermal risk influence parameter; wherein the independent derating coefficient is used for mapping the maximum allowable power of the power conversion circuit when the corresponding thermal risk influence parameter independently acts; determining a total derating coefficient according to each independent derating coefficient and a second preset relationship; wherein the total derating coefficient is used for mapping the maximum allowable power of the power conversion circuit under the combined action of the thermal risk influence parameters; and derating the output power of the power conversion circuit according to the total derating coefficient. According to the method, the thermal risk caused by multiple factors to the circuit is comprehensively considered, the total derating coefficient is obtained, and the power protection effect on the circuit can be improved.

Description

technical field [0001] The invention relates to the technical field of circuit protection, in particular to a power derating method, device, terminal and storage medium for a power conversion circuit. Background technique [0002] At present, in order to protect power devices in a power supply circuit, a protection strategy is set. For example, when the ambient temperature is too high, the over-temperature protection will be triggered and the power output will be stopped. [0003] However, these protection strategies usually only consider the influence of one factor on the power device, without considering the influence of other factors on the device, resulting in poor protection effect. Contents of the invention [0004] The invention provides a power derating method, device, terminal and storage medium of a power conversion circuit to solve the problem of poor protection effect on power devices. [0005] In a first aspect, the present invention provides a power deratin...

Claims

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Application Information

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IPC IPC(8): H02M1/32H02M7/68
Inventor 郭雪萌黄伟平黄少辉石学雷
Owner SHENZHEN KEHUA HENGSHENG TECH
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