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Multi-input single-output distributed transformer and application circuit thereof

A distributed transformer and single output technology, applied in the field of transformers, can solve the problems of complex converter combination scheme and low manufacturing difficulty, and achieve the effect of low manufacturing difficulty, good adaptability and simplified circuit

Active Publication Date: 2021-06-04
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the application of multiple independent power supply input and single output, in order to overcome the defects of complex combination schemes of existing converters, the present invention proposes a distributed transformer with multiple input and single output. The distributed transformer consists of multiple transformers with low manufacturing difficulty and Multiple branches with unidirectional conductivity

Method used

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  • Multi-input single-output distributed transformer and application circuit thereof
  • Multi-input single-output distributed transformer and application circuit thereof
  • Multi-input single-output distributed transformer and application circuit thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] refer to figure 1 , a distributed transformer with multiple input and single output, including 2n ports on the primary side, 2 ports on the secondary side, n transformers, n+1 current inflow branches and n+1 current outflow branches, where n is greater than An integer of 1, one end of the primary side of the jth transformer and one end of the secondary side of the jth transformer have the same name. is the terminal with the same name, the 2j-1th port and the 2jth port of the primary side of the distributed transformer are respectively connected to one end and the other end of the jth primary side of the transformer, and the 2n-1th port of the primary side of the distributed transformer is connected to the The 2n ports are respectively connected to one end and the other end of the primary side of the nth transformer, and the first port of the secondary side of the distributed transformer is simultaneously connected to the current input ends of the first current inflow br...

Embodiment 2

[0053] refer to Figure 8 , an application circuit of a multi-input and single-output distributed transformer, comprising the distributed transformer described in Embodiment 1, n buffer branches, n switching devices and capacitors, the 2j-th primary side of the distributed transformer Port 1 is simultaneously connected to the positive end of the jth DC voltage source and one end of the jth buffer circuit, and the 2jth port on the primary side of the distributed transformer is simultaneously connected to the other end of the jth buffer circuit and one end of the jth switching device, The other end of the jth switching device is connected to the negative end of the jth DC voltage source, and the 2n-1th port of the primary side of the distributed transformer is simultaneously connected to the positive end of the nth DC voltage source and one end of the nth buffer circuit, The 2nth port of the primary side of the distributed transformer is connected to the other end of the nth buf...

Embodiment 3

[0068] refer to Figure 11 , an application circuit of a multi-input and single-output distributed transformer, comprising the distributed transformer described in Embodiment 1, n buffer branches, n switching devices and capacitors.

[0069] The first current inflow branch to the nth current inflow branch in the distributed transformer include diodes Da1 to Dan respectively, and the n+1th current inflow branch includes a series combination of diode Dcn+1 and inductor Lcn+1, the first The 1st current outflow branch includes a series combination of a diode Df1 and an inductor Lf1, and the second to n+1th current outflow branches include diodes Dd2 to Ddn+1 respectively.

[0070] The rest of embodiment 3 is the same as embodiment 2.

[0071] Still taking n=2 as an example, explain its working principle. refer to Figure 11 , assuming that the turn ratios of Tr1 and Tr2 are N1 and N2 respectively, the primary magnetizing inductances of Tr1 and Tr2 are Lmp1 and Lmp2 respectively...

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Abstract

The invention provides a multi-input single-output distributed transformer and an application circuit thereof, and relates to the technical field of transformers. The distributed transformer comprises a plurality of primary side ports, two secondary side ports, n transformers, n + 1 current inflow branches and n + 1 current outflow branches. The primary sides of the first to nth transformers are not connected with each other, and the secondary sides of the first to nth transformers are connected in series. When the first transformer to the nth transformer are inconsistent, a current flowing-out branch and a current flowing-out branch balance the current at a secondary side node. The distributed transformer has the characteristic of low manufacturing difficulty, and is suitable for application occasions with multiple independent power input and single output.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a multi-input and single-output distributed transformer and an application circuit thereof. Background technique [0002] Because there is a coupling relationship between the windings of the centralized transformer, it is difficult for a single centralized transformer and its application circuit to simultaneously gather the electric energy of multiple independent power sources to supply power to a single load. For this kind of multiple-input-single-output application occasions, most of the combination schemes in which the input terminals of multiple converters are independent and the output terminals are connected in parallel are currently adopted. That is, the input terminals of each converter are respectively connected to the independent power sources, and after realizing electric energy conversion, they supply power to a common load through the output terminals connected ...

Claims

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Application Information

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IPC IPC(8): H01F30/00H01F27/42
CPCH01F27/42H01F30/00
Inventor 陈怡应亚萍杜树旺胡进
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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