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Transductor used for direct-current current transformation valve

A DC converter valve and reactor technology, applied in the field of saturable reactors, can solve the problems of complex electrical design and mechanical strength design of saturable reactors, achieve structural design and industrialized production, simplify structure, and facilitate installation. Effect

Active Publication Date: 2010-05-05
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the saturated reactor with this structure is that the electrical design and mechanical strength design are very complicated.

Method used

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  • Transductor used for direct-current current transformation valve
  • Transductor used for direct-current current transformation valve
  • Transductor used for direct-current current transformation valve

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Embodiment Construction

[0021] The saturable reactor of the present invention will be further described in detail with reference to the accompanying drawings.

[0022] Such as figure 2 , image 3 As shown, a saturable reactor for a DC transmission converter valve includes a coil 10, an epoxy resin 11, an iron core 12, a metal clip 13, an air gap 14, and a copper bar 16. The coil 10 is wound into an elliptical track shape, and the coil There are two sections of linear structures with a certain length along the circumferential direction, which are convenient for fixing and hoisting. The coil is made of aluminum with low copper content; the turns are reliably fixed and insulated by epoxy resin 11, and epoxy resin has certain elasticity. , can reduce the vibration of the reactor during operation and reduce the noise. The surface of the epoxy resin is filled with a conductive metal layer, and the C-shaped structure iron core 12 is attached to the surface of the conductive metal layer, and is fastened i...

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Abstract

The invention provides a transductor used for a direct-current current transformation valve. The transductor adopts a hollow aluminum pipe as a coil material, and a hollow coil is a cooling water passage which can cool coils and magnetic cores, thereby simplifying the structure of a water path greatly; the coils are winded into an elliptic runway-shaped structure, and the structure of the transductor is more skillful and is convenient to install; the magnetic cores are arranged in a distribution type, and C type magnetic cores at the circumferential directions of the coils are buckled and connected outside the coils in pairs; when an induction value is changed and needs to be regulated by the magnetic cores, only the pair number of the magnetic cores needs to be changed, the appearance size does not need to be changed, and the additional design is also not needed, thereby simplifying the manufacturing process and being beneficial to realizing structure design and industrialization production; and the thickness of air gaps at the buckling and connecting positions of the magnetic cores can be flexibly regulated so as to meet the requirement of electric properties.

Description

technical field [0001] The invention relates to the fields of power electronics, power systems and direct current transmission, in particular to a saturable reactor for a direct current converter valve. Background technique [0002] The existing saturable reactors for DC transmission converter valves mainly have two structural forms: one uses a multi-turn coil containing a pair of iron cores to establish a coupled magnetic circuit structure. When the inductance value needs to be changed, it needs to be changed by changing the iron core The parameters of the iron core are adjusted by the number of pieces, and the inductance value of the entire reactor is adjusted in conjunction with the change of the number of coil turns. Therefore, the external dimensions of the reactor are difficult to control, which is not conducive to the modular design of the converter valve assembly. Another structure winds the coil into a circular structure, and the structure of multiple pairs of iron ...

Claims

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Application Information

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IPC IPC(8): H01F29/00H01F27/28H01F27/16H01F27/29H01F27/32H01F27/26H01F27/24
Inventor 汤广福于海玉刘杰
Owner CHINA ELECTRIC POWER RES INST
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