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A flexible direct current transmission converter valve valve tower

A flexible DC power transmission and converter valve technology, which is applied in the direction of converting AC power input into DC power output, output power conversion devices, electrical components, etc. efficiency, significant comprehensive benefits, and simplified layout

Active Publication Date: 2018-07-20
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the valve towers of the six bridge arms of the converter valve are all arranged on the ground, the entire converter valve will occupy a large size of the ground

Method used

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  • A flexible direct current transmission converter valve valve tower
  • A flexible direct current transmission converter valve valve tower
  • A flexible direct current transmission converter valve valve tower

Examples

Experimental program
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Effect test

Embodiment

[0028] Taking the 100kV flexible DC converter valve as an example, the conventional bridge arms are used to arrange the valve towers in a centralized manner or the bridge arms are arranged in a staggered manner. The layout schematic diagram is as follows: Figure 5 As shown, the bridge arm of each converter valve group is a converter valve tower, the valve tower size is 10.1m*2.8m, and the entire flexible DC converter valve occupies an area of ​​10.1m*31.8m. The valve tower is arranged vertically in layers, and the layout schematic diagram is as follows image 3 As shown, the footprint of the positive valve tower and the negative valve tower is 26.7m*2.8m, and the footprint of the entire flexible DC converter valve is 26.7m*8.6m. Compared with the conventional valve towers with centralized arrangement of bridge arms or staggered arrangement of valve towers with bridge arms, the flexible direct current converter valve bridge arm vertically layered arrangement of valve towers pr...

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PUM

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Abstract

The invention discloses a flexible DC power transmission converter valve tower. Arms of anode and cathode converter valve groups of a converter valve are lined up, six arms are arranged in two valve towers, phase A, phase B and phase C arms of the anode converter valve group are arranged on one valve tower to form an anode valve tower, the anode phase A arm, the anode phase B arm and the anode phase C arm are arranged sequentially from top to bottom in the anode valve tower, phase A, phase B and phase C arms of the cathode converter valve group are arranged on one valve tower to form a cathode valve tower, the cathode phase A arm, the cathode phase B arm and the cathode phase C arm are arranged sequentially from top to bottom in the cathode valve tower. According to the invention, land occupation of the flexible DC power transmission converter valve can be reduced greatly, the land utilization rate is improved, the converter valve tower is especially suitable for flexible DC power transmission systems of 100kV DC voltage level and below, and the university and flexibility are higher.

Description

technical field [0001] The invention belongs to the field of flexible direct current transmission, in particular to a flexible direct current transmission converter valve tower suitable for the field of flexible direct current transmission. Background technique [0002] Flexible DC transmission is a new generation of DC transmission technology based on voltage source converters composed of fully controlled power electronic devices. The flexible DC transmission system can instantly realize the independent decoupling control of active and reactive power, so as to conveniently and quickly adjust its output active and reactive power. The system provides fast emergency power support, which has a strong role in improving the stability of the power system, increasing the dynamic reactive power reserve of the system, improving power quality, solving the impact of nonlinear loads and impact loads on the system, and ensuring the power supply of sensitive equipment. Technical advantag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H02J3/36
CPCY02E60/60
Inventor 谢晔源朱铭炼姜田贵连建阳殷冠贤段军
Owner NR ELECTRIC CO LTD
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