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Control method and device for power tube in multi-phase interleaved parallel circuit and storage medium

A technology of multi-phase interleaving and control method, applied in the field of circuit element control, can solve the problems of reducing the service life of the circuit and large loss

Active Publication Date: 2020-08-28
中科意创(广州)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a method will cause greater losses to some specific power tubes than others, reducing the service life of the entire circuit

Method used

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  • Control method and device for power tube in multi-phase interleaved parallel circuit and storage medium
  • Control method and device for power tube in multi-phase interleaved parallel circuit and storage medium
  • Control method and device for power tube in multi-phase interleaved parallel circuit and storage medium

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Embodiment Construction

[0040] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in th...

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Abstract

The invention relates to a control method and device for power tubes in a multi-phase interleaved parallel circuit and a storage medium. The method comprises the steps: obtaining the total number of known power tubes, and determining the number K of power tubes which are switched on at the same time according to the load current of the multi-phase interleaved parallel circuit; and controlling theK power tubes to be switched on, controlling the first switched-on power tube to be switched off and then switching on a new power tube when the switching-on time of the K power tubes is equal to thepreset time, so that the number of the power tubes which are switched on at the same time is K, and returning to control the first power tube to be switched on until all the N power tubes are switchedon. According to the control method of the power tube in the multi-phase interleaved parallel circuit, the service life of the whole multi-phase interleaved parallel circuit can be prolonged.

Description

technical field [0001] The present application relates to the technical field of circuit element control, in particular to a method, device and storage medium for controlling power transistors in a multi-phase interleaved parallel circuit. Background technique [0002] Multi-phase interleaved parallel technology is widely used in high-power fields, such as: wind energy pitch, substation, fuel cell electric vehicles and other fields. Applying multi-phase interleaved parallel technology to the circuit can make up for the shortcomings in the circuit. For example: applying multi-phase interleaved parallel technology to switching DC circuits can reduce costs and protect power tubes in switching DC circuits. However, there is no guarantee that the current value flowing through the power transistors in the circuit will be consistent when they are turned on. [0003] In traditional technology, methods such as output impedance method, effective current sharing method and average cu...

Claims

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Application Information

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IPC IPC(8): H02M3/158
CPCH02M3/1584
Inventor 刘智明王云任广辉郑鲲鲲於挺詹圣益朱加义
Owner 中科意创(广州)科技有限公司