Converter valve

Patent metadata

Field	Value
Publication number	US-10122292-B2
Application number	US-201615573837-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	May 28, 2015
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

A converter valve includes a top shielding cover, a bottom shielding cover, at least two vertically stacked valve layers, and a maintenance platform. The top shielding cover is disposed at an upper portion of an uppermost valve layer. The bottom shielding cover is disposed at a lower portion of a lowermost valve layer. Each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction. The two valve modules are electrically connected via a busbar and mechanically connected via securing connectors. A lower valve layer is connected to an upper valve layer in a suspended manner. A body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located.

First claim

What is claimed is:

1. A converter valve, comprising:
a top shielding cove;
a bottom shielding cover;
at least two vertically stacked valve layers; and
a maintenance platform,
wherein the top shielding cover is disposed at an upper portion of an uppermost valve layer,
wherein the bottom shielding cover is disposed at a lower portion of a lowermost valve layer,
wherein each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction,
wherein the two valve modules are electrically connected via a busbar and mechanically connected via securing connectors,
wherein a lower valve layer is connected to an upper valve layer in a suspended manner,
wherein a body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located,
wherein the two valve modules are securely connected via a first securing connector and a second securing connector,
wherein the first securing connector is composed of an insulating material,
wherein the second securing connector is an insulator, or an insulating beam, or a metallic beam.

2. The converter valve according to claim 1 , wherein the first securing connector and the second securing connector are disposed between the two valve modules, respectively, and adjacent to two opposite side walls of the converter valve.

3. The converter valve according to claim 1 , wherein the different valve layers are electrically connected, on one side adjacent to the first securing connector, via the busbars,
wherein the two valve modules within the same valve layer are electrically connected, on one side adjacent to the second securing connector, via the busbar,
wherein all the valve modules within the different valve layers in the converter valve are electrically connected in series.

4. The converter valve according to claim 1 , wherein the body of the maintenance platform is suspended on frames of two half-layer valves for any valve layer through an insulating material.

5. The converter valve according to claim 1 , wherein the frame of the half-layer valve comprises:
an inner longitudinal beam;
an outer longitudinal beam;
at least two cross beams,
wherein the inner longitudinal beam is a frame of one half-layer valve on one side adjacent to the other half-layer valve,
wherein the outer longitudinal beam is a frame of the one half-layer valve on one side away from the other half-layer valve, and is parallel to the inner longitudinal beam in a horizontal direction,
wherein the cross beams are connected between the inner longitudinal beam and the outer longitudinal beam.

6. The converter valve according to claim 1 , wherein the body of the maintenance platform is suspended on the inner longitudinal beams of the two half-layer valves.

7. The converter valve according to claim 1 , wherein at least two cooling water pipes are provided between the different valve layers.

8. The converter valve according to claim 1 , wherein at least two optical cable trays are provided between the different valve layers.

9. The converter valve according to claim 2 , wherein the different valve layers are electrically connected, on one side adjacent to the first securing connector, via the busbars,
wherein the two valve modules within the same valve layer are electrically connected, on one side adjacent to the second securing connector, via the busbar,
wherein all the valve modules within the different valve layers in the converter valve are electrically connected in series.

10. The converter valve according to claim 4 , wherein the frame of the half-layer valve comprises:
an inner longitudinal beam;
an outer longitudinal beam;
at least two cross beams,
wherein the inner longitudinal beam is a frame of one half-layer valve on one side adjacent to the other half-layer valve,
wherein the outer longitudinal beam is a frame of the one half-layer valve on one side away from the other half-layer valve, and is parallel to the inner longitudinal beam in a horizontal direction,
wherein the cross beams are connected between the inner longitudinal beam and the outer longitudinal beam.

11. The converter valve according to claim 5 , wherein the body of the maintenance platform is suspended on the inner longitudinal beams of the two half-layer valves.

Assignees

• Nr Electric Co Ltd
• Nr Engineering Co Ltd
• Nr Electric Power Electronics Co Ltd

Inventors

• Zhang Xiang
• Liu Lei
• Fang Taixun
• Chen Chihan
• Li Zhao
• Li Haiying
• Ding Fengfeng

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H02M7/00 Primary

  Conversion of AC power input into DC power output; Conversion of DC power input into AC power output · CPC title

• H05K7/14339

  specially adapted for high voltage operation · CPC title