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Combined transformer for wind power generation

A combined transformer and winding technology, applied in the field of power transformers, can solve the problems of restricting the development of wind power, inability to match large-capacity wind turbines, and small transformer capacity, so as to improve the ability to resist lightning strikes, simplify the structure and installation process, and reduce costs. The effect of the balance rate

Inactive Publication Date: 2012-10-24
SHANDONG ELECTRICAL ENG& EQUIP GRP INTELLIGENT ELECTRIC CO LTD
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AI Technical Summary

Problems solved by technology

[0002] With the popularization of wind power generation, there are more and more large-capacity wind turbines. However, the capacity of the combined transformer used for wind power generation is very small, which cannot be compared with The matching of large-capacity wind turbines has become the primary factor restricting the development of wind power

Method used

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  • Combined transformer for wind power generation

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

[0018] A combined transformer for wind power generation, such as figure 1 , 2 , 3, including the fuel tank 2 and the winding 8 in the fuel tank, the winding 8 adopts the form of three windings, with two input terminals of low voltage and medium voltage and one high voltage output terminal, wherein the winding on the low voltage side adopts Z-type connection method (such as Figure 4 As shown), the lead wire bus 9 partially adopts a double-row parallel structure (such as Figure 5 shown). Correspondingly, an independent low-pressure chamber 1 , a medium-pressure chamber 7 and a high-pressure chamber 6 are provided outside the fuel tank 2 . Two parallel high-voltage current-limiting fuses 3 are arranged in the low-voltage chamber 1, and the high-voltage current-limiting fuse 3 is located on one side of the fuel tank and connected in series with the high...

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Abstract

The invention relates to the field of power transformers, in particular to a combined transformer for wind power generation which is matched with a wind generation set. The transformer comprises an oil tank and a winding in the oil tank, wherein the winding adopts a three-winding form and is provided with a low-voltage input, a medium-voltage input end and a high-voltage output end; wherein the winding on the low-voltage side adopts a Z-shaped connection mode, and the lead bus of the winding on the low-voltage side adopts a local double-row parallel structure; a low-voltage chamber, a medium-voltage chamber and a high-voltage chamber which are independent are correspondingly arranged outside the oil tank; and two parallel high-voltage current limiting fuses are arranged in the low-voltage chamber. According to the combined transformer for wind power generation, The transformer structure is improved, and the capacity of the transformer is improved; and moreover, due to the improvement of the capacity, the external structure is adjusted, so that a high-capacity wind generation set is well matched to structure to accord with the mainstream trend of wind generation development.

Description

technical field [0001] The invention relates to the field of power transformers, in particular to a combined transformer for wind power generation used in conjunction with wind turbines. Background technique [0002] With the popularization of wind power generation, there are more and more large-capacity wind turbines. However, the capacity of the combined transformer used for wind power generation is too small to match the large-capacity wind turbines. This has become the primary factor restricting the development of wind power. Therefore, how to design a large-capacity transformer is an urgent problem to be solved in the current development of the wind power industry. Contents of the invention [0003] In order to solve the above problems, the present invention makes a series of improvements to the structure of the original transformer, and designs a large-capacity combined transformer for wind power generation. [0004] The concrete technical scheme that the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/06H01F27/28H01F27/40H01F27/08
Inventor 刘金忠孙业荣魏彩霞
Owner SHANDONG ELECTRICAL ENG& EQUIP GRP INTELLIGENT ELECTRIC CO LTD
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