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Vibration control apparatus used for converter valve

A converter valve and damping device technology, applied in the direction of anti-seismic equipment, can solve the problems of inability to solve the vibration control problem of the converter valve tower, proximity, and excessive connection rigidity, etc., to ensure the vibration control effect, the limit effect, The effect of preventing buckling

Inactive Publication Date: 2017-05-31
TONGJI UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

If the valve hall is directly connected to the ground, the fundamental frequency of the valve tower will definitely increase. If the connection stiffness is too large, the fundamental frequency of the valve tower may be close to the fundamental frequency of the valve hall, resulting in resonance
Therefore, simply connecting the converter valve tower directly to the ground cannot solve the vibration control problem of the converter valve tower

Method used

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  • Vibration control apparatus used for converter valve
  • Vibration control apparatus used for converter valve
  • Vibration control apparatus used for converter valve

Examples

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Embodiment 1

[0031] A vibration control device for a converter valve, the installation position of which is as follows figure 1 As shown, the top of the converter valve 1 is fixed on the valve hall 6 through a number of suspension insulators 7, and the bottom of the converter valve 1 is tied obliquely to the ground through a number of tensile insulators 2, with a cable distance 5, each The tension insulator 2 is connected to the support 4 on the ground through the damping device 3 . The number of suspension insulators 7 is the same as the number of tension insulators 2, so as to prevent excessive stress inside the valve tower.

[0032] Among them, the structure of the damping device is as follows figure 2 As shown, the damping device includes an upper connecting plate 9, a lower connecting plate 12, and several springs 11 and hydraulic dampers 10 arranged between the two connecting plates, and the two ends of the springs 11 and the hydraulic dampers 10 are respectively welded on the uppe...

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PUM

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Abstract

The invention relates to a vibration control apparatus used for a converter valve. The top of the converter valve is fixed on a valve hall through a plurality of suspension insulators; the bottom of the converter valve is connected with the ground in a tensioning manner slantly through a plurality of strain insulators; each strain insulator is connected with the ground through a damping apparatus; the damping apparatus an upper connecting plate, a lower connecting plate and a plurality of springs and a damper arranged between the two connecting plates; the upper connecting plate is connected with the lower ends of the strain insulators through an upper bidirectional hinge; and the lower connecting plate is connected with the ground through a lower bidirectional hinge. Compared with the prior art, the vibration control apparatus is simple in structure, easy to install, and good in position limiting and vibration control effects.

Description

technical field [0001] The invention relates to the technical field of converter equipment, in particular to a vibration control device for a converter valve. Background technique [0002] With the development of high-voltage direct current transmission technology, direct current transmission has played a huge role in the composition of China's power grid, especially in the "west-to-east power transmission". As a power source, the southwest region is in an earthquake-prone zone, and the safety of related power equipment under earthquakes needs to be paid attention to. The converter valve is one of the most important equipments in EHV and UHV DC transmission systems. The anti-seismic performance of the converter valve under earthquake is the key to ensure the safe and reliable operation of the transmission system. The converter valve is expensive, and the price of the converter valve in the complete equipment of the converter station accounts for about 25% of the total price...

Claims

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Application Information

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IPC IPC(8): H02B1/54
CPCH02B1/54
Inventor 谢强杨振宇
Owner TONGJI UNIV
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