Iron core for anode saturable reactor, preparation method thereof and anode saturable reactor

A reactor and iron core technology, applied in the direction of inductor/transformer/magnet manufacturing, transformer/inductor core, transformer/inductor coil/winding/connection, etc. The effect of moderate paint volume, noise reduction and strip burr reduction

Inactive Publication Date: 2020-06-30
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides an iron core for an anode saturable reactor, a preparation method, and an anode saturable reactor, so as to solve the problem that the anode saturable reactor has a large noise

Method used

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  • Iron core for anode saturable reactor, preparation method thereof and anode saturable reactor
  • Iron core for anode saturable reactor, preparation method thereof and anode saturable reactor

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Effect test

Embodiment 1

[0041] The embodiment of the present invention provides a method for preparing an iron core for an anode saturable reactor, such as figure 1 shown, including:

[0042] S11, provide the core prototype.

[0043] Wherein, the prototype of the iron core can be formed in advance, or can be prepared by using target raw materials when preparing the iron core, and there is no restriction on the timing of forming the prototype of the iron core.

[0044] In this embodiment, it is described by taking the prototype of the iron core which is prepared from raw materials when preparing the iron core as an example. Specifically, the above S11 includes the following steps:

[0045] (1) Control the uncoiler to provide target raw materials.

[0046] Set the target raw material on the uncoiler, and control the work of the uncoiler to provide the target raw material to the slitting machine. Wherein, the target raw material may be an industrial finished plate of ultra-thin oriented silicon stee...

Embodiment 2

[0064] This embodiment provides a method for preparing an iron core for an anode saturable reactor, and the specific preparation method is the same as that of Embodiment 1. Wherein, different from embodiment 1 is:

[0065] The uncoiling tension of the uncoiler is 10kg, and the winding tension is 10kg;

[0066] The gap between the slitting knife surface is 0.5mm, the upper and lower knife error is 0.5mm, the edge wire width is 10mm, and the slitting speed is 500m / min;

[0067] The number of coils of the same type of core differs by 10 coils, and the coil thickness differs by 0.5mm;

[0068] The clamping pressure is 10 tons / m 2 ;

[0069] The oxygen content in the annealing furnace is 100ppm, the temperature in the annealing furnace is raised to 1000°C, the holding time is 1h, and the cooling rate is 2°C / min when the temperature in the furnace drops to 500°C;

[0070] The vacuum degree of dipping paint is 1000Pa, the dipping paint pressure is 1MPa, the duration of dipping pa...

Embodiment 3

[0072] This embodiment provides a method for preparing an iron core for an anode saturable reactor, and the specific preparation method is the same as that of Embodiment 1. Wherein, different from embodiment 1 is:

[0073] The uncoiling tension of the uncoiler is 5kg, and the winding tension is 5kg;

[0074] The gap between the slitting knife surface is 0.1mm, the upper and lower knife error is 0.1mm, the edge wire width is 5mm, and the slitting speed is 200m / min;

[0075] The number of coils of the same type of core differs by 20 coils, and the coil thickness differs by 1mm;

[0076] The clamping pressure is 5 tons / m 2 ;

[0077] The oxygen content in the annealing furnace is 300ppm, the temperature in the annealing furnace is raised to 850°C, the holding time is 5h, and the cooling rate is 2°C / min when the temperature in the furnace drops to 500°C;

[0078] The vacuum degree of dipping paint is 1000Pa, the dipping paint pressure is 0.5MPa, the duration of dipping paint h...

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Abstract

The invention relates to the technical field of iron cores for the power electronic industry, in particular to an iron core for an anode saturable reactor, a preparation method thereof and the anode saturable reactor. The method comprises the following steps: providing an iron core prototype; clamping the iron core prototype, and carrying out annealing treatment on the clamped iron core prototype;performing paint dipping treatment on the annealed iron core prototype based on the technological parameters of paint dipping, wherein the technological parameters of the paint dipping comprise thatthe paint dipping vacuum degree is 1000 Pa or below, the paint dipping pressure is 0.1 MPa to 1 MPa, the paint dipping pressure maintaining time is 0.5 h to 10 h, and the total paint dipping time is 0.5 h to 10 h; and carrying out cutting treatment on the iron core prototype subjected to paint dipping to obtain the iron core for the anode saturable reactor. By setting process parameters of paint dipping during paint dipping treatment, moderate paint dipping amount and uniform thickness can be ensured such that the noise of the iron core is reduced under the condition that the loss is not increased, and the noise of the anode saturable reactor using the iron core can be further reduced.

Description

technical field [0001] The invention relates to the technical field of iron cores used in the power electronics industry, in particular to an iron core for an anode saturated reactor, a preparation method and an anode saturated reactor. Background technique [0002] The anode saturable reactor is used in the converter valve of the high-voltage DC converter. Its main functions are: first, it is used to limit the higher current rise rate and higher surge when the thyristor element in the converter valve is turned on. The current causes the thyristor element to be burned; the second is that when the thyristor is turned off, the line has a high voltage rise rate to avoid false opening caused by the surge voltage of the thyristor element. [0003] Among them, the anode saturable reactor will generate relatively large noise (generally, the noise of a single iron core is above 85dB), which is also the main noise source of the converter valve. In order to solve this problem, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F27/24H01F27/30C21D1/26C21D9/00
CPCC21D1/26C21D9/0068H01F27/24H01F27/306H01F41/02
Inventor 杨富尧韩钰陈新马光刘洋程灵何承绪高洁吴雪
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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