Fast response saturation reactor

A fast-response, reactor technology, applied in continuously variable inductors/transformers, electrical components, output power conversion devices, etc., can solve unreliable freewheeling and demagnetization circuits, and insufficient freewheeling and demagnetization circuits Simple, low reliability and other problems, to achieve the effect of simple freewheeling and demagnetization circuit, fast energy consumption and excellent effect

Active Publication Date: 2016-10-12
李晓明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The freewheeling and degaussing circuit is not reliable enough, and the energy consumption is not fast enough
[0008] In short, the above-mentioned freewheeling and degaussing circuits are not simple enough, reliable enough, and not fast enough to consume energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 The shown saturable reactor with a freewheeling diode includes a closed-loop iron core of the saturable reactor, each coil installed on two iron core columns of the closed-loop iron core, a thyristor connected to each coil, and a control module for controlling the thyristor; its features are: Yes,

[0036] There are three coils on each of the core legs, the coils at the second position and the coil at the third position have different turns, but the coils at the same position on the two core legs have the same number of turns;

[0037] The synonymous end of the coil at the first position on one of the iron core columns is connected with the same name end of the coil at the second position on the other core column;

[0038] The same-named end of the coil at the third position on each core column is connected with the same-named end of the coil at the second position of the core column;

[0039] The different ends of the coils at the third position on each iron...

Embodiment 2

[0057] The structure and connection method of another fast-response saturable reactor are as follows: image 3 As shown (in this embodiment, the saturable reactor can also take other existing forms, not limited to figure 1 given saturable reactor form). from image 3 It can be seen that it is actually replaced by another freewheeling and demagnetizing circuit figure 1 It is composed of the original freewheeling diode of the saturable reactor with freewheeling diode shown.

[0058] The freewheeling and demagnetizing circuit includes diode D4, high-power voltage regulator D5, and IGBT. The diode D4 is connected in reverse series with the high-power Zener tube D5, and the high-power Zener tube D5 is also connected in parallel with the IGBT in the same direction. The control terminal of the IGBT is controlled by the control module 4 .

[0059] image 3 When the shown saturable reactor operates normally and stably, the IGBT is controlled by the control module 4 to be fully tu...

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PUM

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Abstract

The invention relates to a fast response saturation reactor which comprises a saturation reactor and a continuous current and demagnetization circuit which substitutes the original continuous current diode of the saturation reactor. The continuous current and demagnetization circuit comprises a thyristor D6, a diode D4, a high power zener diode D5. The diode D4 and the high power zener diode D5 are in reverse series connection and then are in parallel connection with the thyristor D6. The diode D4 and the thyristor D6 are in the same direction. The control terminal of the thyristor D6 is controlled by a control module, and high power zener diode D5 consumes energy in a fastest way in a condition of not exceeding stable voltage.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation of power systems, in particular to a fast-response saturable reactor. Background technique [0002] Reactors are widely used in power systems. In some application fields, the reactance value of the reactor is fixed; in other application fields, the reactance value of the reactor should be continuously adjusted with the change of the operation mode of the power system. The controllable saturable reactor (also known as: saturable reactor, magnetron reactor) whose reactance value can be continuously adjusted is an important research topic. [0003] The saturable reactor adjusts the saturation degree of the closed-loop iron core by continuously adjusting the magnitude of the DC current in the DC coil on the closed-loop iron core, so as to continuously adjust the reactance value of the AC coil (reaction coil) on the closed-loop iron core. At present, many saturable react...

Claims

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Application Information

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IPC IPC(8): H02P13/00H01F21/02
CPCH01F21/02H02P13/00
Inventor 李晓明
Owner 李晓明
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