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Direct current converter valve with linear valve layer arrangement

A DC converter valve, a straight-line technology, applied in the direction of converting AC power input to DC power output, electromechanical devices, output power conversion devices, etc., can solve the problems of large valve hall area and long valve floor, etc. Achieve the effect of saving floor space, reducing width, and reducing projected area

Inactive Publication Date: 2015-11-04
NR ELECTRIC CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When two valve modules are connected in series in a U-shaped structure, the valve layer is wider due to the need to ensure sufficient insulation distance between the two valve modules; All the components inside are arranged in a straight line, resulting in a longer valve layer
Excessive length or width puts forward higher requirements on the size of the valve hall, resulting in a larger occupied area of ​​the valve hall

Method used

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  • Direct current converter valve with linear valve layer arrangement
  • Direct current converter valve with linear valve layer arrangement
  • Direct current converter valve with linear valve layer arrangement

Examples

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Embodiment 1

[0020] see figure 1 , figure 2 and image 3 , the direct current converter valve with in-line valve layer arrangement includes a top shield, at least two valve layers and a bottom shield connected sequentially from top to bottom; the at least two valve layers are stacked up and down; the last The upper valve layer and the top shield are suspended and connected through the interlayer insulator 5; the lowest valve layer and the bottom shield are also suspended and connected through the interlayer insulator 5; it also includes the direct current arranged around the inline valve layer The cooling water pipe on the outside of the diverter valve; the cooling water pipe is an annular water pipe, and the water connection between different valve layers is realized through the annular water pipe; each valve layer includes two first valve modules 11 and second valve modules 12 arranged in series; The first valve module 11 includes a first reactor 21 , a first thyristor assembly 25 and...

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Abstract

The invention discloses a direct current converter valve with linear valve layer arrangement. Each valve layer comprises a first valve module and a second valve module which are connected in series. The first valve module comprises a first reactor, a first thyristor assembly and a second reactor. The second valve module comprises a third reactor, a second thyristor assembly and a fourth reactor. The first reactor, the first thyristor assembly, the second reactor, the third reactor, the second thyristor assembly and the fourth reactor are sequentially connected in sequence. The first thyristor assembly and the second thyristor assembly are linearly arranged to form a first arrangement line, and the first reactor, the second reactor, the third reactor and the fourth reactor are linearly arranged to form a second arrangement line. The first arrangement line and the second arrangement line are parallel with each other. The direct current converter valve of the invention is strong in shock resistance, and the projection area of the whole valve layers is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power electronics and power systems, in particular to a DC converter valve with an inline valve layer arrangement. Background technique [0002] The DC converter valve arranged in a straight valve layer is a key component of HVDC transmission, and its physical size is relatively large. During operation, its two ends need to withstand voltages of hundreds of kV, and are in the process of frequent opening and closing; a single commercial power electronics The device withstand voltage is currently up to 8.5kV, so dozens or even hundreds of thyristors need to be connected in series. These series-connected thyristors are divided into multiple sections and multi-layered in space to form a DC converter valve with an in-line valve layer arrangement. In order to meet the seismic requirements, the design of electrical and physical connections between floors and within floors is particularly important. DC converter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H02K7/20
Inventor 张广泰杨帆李钊宋戈徐敏杨懿功
Owner NR ELECTRIC CO LTD
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