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DC-DC converter and control method thereof

A technology of DC-DC and converter, which is applied in the field of DC-DC converter and its control, can solve problems such as unbalanced load, and achieve the effect of ensuring load balance

Active Publication Date: 2022-05-13
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this disclosure is to provide a DC-DC converter and its control method to solve the problem of unbalanced load of each module of the DC-DC converter in the related art

Method used

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  • DC-DC converter and control method thereof
  • DC-DC converter and control method thereof
  • DC-DC converter and control method thereof

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Embodiment Construction

[0050] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0051] An embodiment of the present disclosure provides a DC-DC converter, such as figure 1 As shown, the DC-DC converter 100 includes an input terminal 101, an output terminal 102, and a plurality of parallel conversion modules 103 (such as figure 1 Conversion module 1 to conversion module N shown in), and main control board 104;

[0052] The main control board 104 is connected to each of the conversion modules 103;

[0053] The main control board 104 is used to output power according to the demand and allocate power to each of the conversion modules 103 , wherein the sum of the output powers of each of the conversion modules 103 is the actual output power...

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Abstract

The present disclosure relates to a DC-DC converter and a control method thereof, including an input terminal, an output terminal, a plurality of parallel conversion modules, and a main control board; the main control board is connected to each of the conversion modules; the The main control board is used to output power according to demand, and allocate power to each of the conversion modules, wherein the sum of the output powers of each of the conversion modules is the actual output power of the output terminal. In this way, the required output power is obtained through the main control board, and then according to the required output power, power is allocated to each conversion module, and each conversion module outputs corresponding power according to the distribution of the main control board. In this way, the output power of each conversion module can be balanced, so as to ensure the load balance of each conversion module.

Description

technical field [0001] The present disclosure relates to the field of power electronics, and in particular, to a DC-DC converter and a control method thereof. Background technique [0002] A DC-DC converter is a type of power conversion device that converts a certain DC voltage source into a DC voltage source required by the load. DC-DC converters are the basic components of many other types of power converters, and are widely used in electric locomotives, subways, city trams, battery cars, and switching power supplies. [0003] At present, for DC-DC converters with multiple modules connected in parallel, due to the different hardware models used by each module and the large differences in the hardware parameters of each module, the load of each module of the DC-DC converter is unbalanced. For example, some modules work at full load for a long time, while some modules have a small load or no load for a long time. Contents of the invention [0004] The purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H02M3/00H02J13/00
CPCH02M1/00H02M3/00
Inventor 沈林梁树林
Owner BYD CO LTD
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