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Converter rectifier

A rectifier and converter technology, applied in the field of electric power, can solve the problem of high cost of rectifier devices and achieve the effect of reducing the cost of devices

Active Publication Date: 2017-10-10
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the component cost of the rectifier device used in this way is relatively high

Method used

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Examples

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Embodiment 1

[0018] figure 1 It is a schematic diagram of the external structure of an embodiment of the converter rectifying device provided by the present invention. figure 2 for figure 1 A schematic cross-sectional view of the converter rectifier shown. like figure 1 and figure 2 As shown, the converter rectifying device of this embodiment may include: two rectifying modules 11 .

[0019] Please refer to Figure 1-Figure 2 , the two rectifier modules 11 both include a module backplane 21 and a water-cooled substrate 22 fixedly installed on the module backplane 21, the difference is that the two sides of the water-cooled substrate 22 in one rectifier module 11 are each pasted with a single-phase structure. At least one insulated gate bipolar transistor (IGBT for short) 24 of the rectifier bridge 23, while the water-cooled substrate 22 in the other rectifier module 11 has only one side surface pasted with a group of at least one single-phase rectifier bridge 23. IGBT24.

[0020] ...

Embodiment 2

[0023] image 3 It is a perspective view of a rectifier module in another embodiment of the converter rectifier device provided by the present invention. Figure 4 for image 3 An exploded view of the perspective view of the rectifier module shown. Figure 5 for image 3 Electrical schematic diagram of the converter rectifier shown.

[0024] like image 3 , Figure 4 and Figure 5 As shown, the rectifier module 11 in the converter rectifier device of this embodiment is figure 1 can also include: fixedly installed on the module backplane 21 (such as image 3 , Figure 4 shown) on the first fixing plate 31 (such as Figure 4 shown) and the DC busbar 32 and the laminated busbar 33 fixedly mounted on the first fixing plate 31 . The positive pole of the laminated busbar 33 is respectively connected to the positive pole of the DC busbar 32 and the single-phase rectifier bridge 23 (eg Figure 5 The positive terminal of the DC output shown in the figure) is electrically con...

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Abstract

The invention provides a converter rectifying device. The device includes: two rectifier modules 11 , the rectifier modules 11 include a module backplane 21 and a water-cooled substrate 22 fixedly mounted on the module backplane 21 , and one of the water-cooled substrates 22 in the rectifier module 11 is At least one insulated gate bipolar transistor IGBT24 constituting a single-phase rectifier bridge 23 is pasted on each of the two sides, and one side of the water-cooled substrate 22 in the other rectifier module 11 is pasted with a single-phase rectifier bridge 23. of at least one IGBT24. In the converter rectifier device provided by the present invention, a group of IGBTs constituting a single-phase rectifier bridge are pasted on two sides of the water-cooled substrate, so that the entire rectifier device only needs two rectifier modules to realize the rectification of three-phase alternating current. function, reducing device cost.

Description

technical field [0001] The present invention relates to the field of electric power technology, in particular to a rectifier device of a converter. Background technique [0002] At present, when the three-phase alternating current generated by the wind turbine is converted into direct current, a rectifier device in the converter needs to be used to convert the three-phase alternating current into direct current. [0003] In the prior art, three-phase alternating current is usually divided into three groups of single-phase alternating current, and each group of single-phase alternating current is converted into direct current through its corresponding rectifier module. However, the device cost of the rectifier device adopted in this way is relatively high. SUMMARY OF THE INVENTION [0004] Embodiments of the present invention provide a converter rectifier device to reduce device cost. [0005] To achieve the above object, the embodiments of the present invention adopt the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H02M7/219
Inventor 张群孟昭鹤杨志千
Owner BEIJING ETECHWIN ELECTRIC
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