Saturable reactor for direct-current transmission converter valve

A DC power transmission and reactor technology, applied in the direction of transformer/inductor shell, transformer/inductor cooling, transformer/inductor coil/winding/connection, etc. Demand, cable wear and discharge, etc.

Active Publication Date: 2021-03-23
XIDIAN POWER RECTIFIER XIAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the whole, the above-mentioned methods of the existing reactors all have certain applicable conditions or have certain defects, and cannot better meet the use requirements of the converter valve.
For example, the saturable reactors suitable for the original large-component converter valves (thyristor stag...

Method used

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  • Saturable reactor for direct-current transmission converter valve
  • Saturable reactor for direct-current transmission converter valve
  • Saturable reactor for direct-current transmission converter valve

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Embodiment Construction

[0026] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.

[0027] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar exp...

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Abstract

The invention discloses a saturable reactor for a direct-current transmission converter valve, the direct-current transmission converter valve comprises a thyristor level and a saturable reactor whichare connected in parallel through a water path, the saturable reactor is provided with a water path inlet and a water path outlet, and the pressure difference formed between the water path inlet andthe water path outlet is the same as the pressure difference of thyristor level water paths connected in parallel; the saturable reactor comprises an annular coil formed by winding a hollow wire, thecoil is provided with a first wire outlet end and a second wire outlet end which are opposite to each other, and cooling liquid circulates in the wire between the first wire outlet end and the secondwire outlet end; the plurality of iron cores are arranged on the coil at certain intervals in a sleeving manner; an insulating cushion block is arranged between every two adjacent iron cores; and thesplit type shell forms a containing coil and an iron core containing cavity through a connecting assembly. The saturable reactor for the direct-current power transmission converter valve can be bettersuitable for the scenes of thyristor levels and saturable reactors which are connected in parallel through waterways.

Description

technical field [0001] The invention relates to the technical field of power system components, in particular to a saturable reactor for a direct current transmission converter valve. Background technique [0002] The saturable reactor is a key component of the HVDC converter valve. It is responsible for limiting the rate of rise of the thyristor opening current and damping the electromagnetic oscillation caused by stray capacitance during the very short period of time when the converter valve is on. [0003] The existing saturable reactors for DC transmission converter valves mainly include the following methods. Method 1: Use a pair of iron cores coupled with multi-turn coils; Method 2: Fix the number of coil turns, adjust the logarithm of the iron core, and put the coils of the coupled iron cores into the upper and lower covers to realize the module design; Method 3: The logarithm of the iron core is fixed, the number of turns of the coil is adjusted, and the secondary w...

Claims

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Application Information

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IPC IPC(8): H01F27/28H01F27/29H01F27/16H01F27/10H01F27/02
CPCH01F27/2823H01F27/2876H01F27/29H01F27/16H01F27/10H01F27/02
Inventor 苟锐锋王康张雷董妍波姚舒娄彦涛
Owner XIDIAN POWER RECTIFIER XIAN
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