High-voltage and high-frequency transformer and winding method therefor

A winding method, high-voltage and high-frequency technology, applied in the direction of inductor/transformer/magnet manufacturing, transformer/inductor coil/winding/connection, transformer/inductor parts, etc., can solve the problem of low isolation voltage and low safety protection level , large volume and other issues, to achieve the effect of high isolation voltage and strong practical significance

Inactive Publication Date: 2017-07-18
TBEA SUNOASIS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, due to the low isolation voltage of the point switch power transformer, the safety protection level is low, and it cannot meet the high isolation voltage (high insulation) requirements of flexible DC transmission, while the high isolation power transformer has a high isolation voltage and can meet the flexible The requirement of high isolation voltage for DC transmission, but because it can only be used for low frequency, it cannot meet the high frequency requirements of flexible DC transmission, and it is bulky, needs to be filled with oil and gas, and the cost is high, which is not convenient for miniaturization
In addition, although the commonly used transformers for switching power supplies can meet the high-frequency requirements of flexible DC transmission, they cannot meet the requirements for high isolation voltage.

Method used

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  • High-voltage and high-frequency transformer and winding method therefor
  • High-voltage and high-frequency transformer and winding method therefor

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Effect test

Embodiment 1

[0036] This embodiment provides a high-voltage and high-frequency transformer. The magnetic core in the transformer is made of high-frequency magnetic materials, such as ferrite materials; the wires in the transformer are high-voltage and high-frequency cables, such as Triple-layer insulated wire or enameled wire. Such as figure 1 As shown, the high-voltage and high-frequency transformer includes: a skeleton 100, and a first inner insulating layer 200, a magnetic shielding layer 400, a second inner insulating layer 500, The first primary side layer 600 , the first primary side insulating layer 800 , the secondary side layer 900 , the second primary side insulating layer 1100 , the second primary side layer 1200 and the outer insulating layer 1300 .

[0037] Wherein, the frame 100 includes a middle part 103 and two end parts 101 and 102 respectively located on both sides of the middle part, and the frame is bent at the two ends 101 and 102, and the above-mentioned first inner ...

Embodiment 2

[0050] This embodiment provides a winding method for a high-voltage and high-frequency transformer. The transformer includes a skeleton, and the skeleton includes a middle part and two ends respectively located on both sides of the middle part, and the skeleton is folded at the two ends. The inner surfaces of the two ends are opposite to each other, and the outer surfaces of the two ends are opposite to each other. The magnetic core in the transformer is made of high-frequency magnetic material, for example, ferrite material; the wire in the transformer is a high-voltage high-frequency cable, such as triple-layer insulated wire or enameled wire.

[0051] The winding method comprises the steps of:

[0052] The first inner insulating layer, the magnetic shielding layer, the second inner insulating layer, the first primary side layer, the first primary and secondary insulating layer, the secondary side layer, the second The insulating layer between the two primary and secondary ...

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Abstract

The invention provides a high-voltage and high-frequency transformer. The high-voltage and high-frequency transformer comprises a framework, and a first inner insulating layer, a magnetic shielding layer, a second inner insulating layer, a first primary side layer, a first primary side and secondary side interlayer insulating layer, a secondary side layer, a second primary side and secondary side interlayer insulating layer, a second primary side layer and an outer insulating layer which are wound on the framework in a direction perpendicular to the axis of the framework in sequence. Correspondingly, the invention also provides a winding method for the high-voltage and high-frequency transformer. The high-voltage and high-frequency transformer disclosed by the invention also has high-isolation-voltage and high-frequency performance.

Description

technical field [0001] The invention relates to the technical field of flexible direct current transmission, in particular to a high-voltage high-frequency transformer and a winding method of the high-voltage high-frequency transformer. Background technique [0002] Flexible DC transmission is a new generation of DC transmission technology with voltage source converter as the core. It adopts the most advanced voltage source converter and full control devices, which is an upgrade of conventional DC transmission technology. Compared with AC transmission and conventional DC transmission, flexible DC transmission can flexibly adjust the voltage of the AC system connected to it while transmitting energy. It has significant advantages such as good controllability, flexible operation mode, and many applicable occasions. [0003] As the core equipment of the flexible DC transmission system, the DC / DC converter is a DC conversion device that first inverts (boosts or bucks) DC power i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/32H01F27/28H01F27/36H01F41/061H01F41/12
CPCH01F27/2847H01F27/323H01F27/36H01F41/122H01F2027/2857
Inventor 李翔韩亚强郝翔郭博宁
Owner TBEA SUNOASIS
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