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Magnetically controlled reactor system rapidly responding through longitudinal yoke coils and working method

A magnetically controlled reactor and fast response technology, which is applied in the direction of inductors, variable inductors, transformers/inductor coils/windings/connections, etc. Reactive power compensation response speed requirements and other issues, to achieve the effect of low loss, high reliability, and high cost performance

Inactive Publication Date: 2016-07-13
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the response time of the existing magnetic control reactors is greater than 300ms, which cannot meet the response speed requirements of the grid for reactive power compensation, and affects the overall low voltage ride-through capability of the wind farm.

Method used

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  • Magnetically controlled reactor system rapidly responding through longitudinal yoke coils and working method
  • Magnetically controlled reactor system rapidly responding through longitudinal yoke coils and working method
  • Magnetically controlled reactor system rapidly responding through longitudinal yoke coils and working method

Examples

Experimental program
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Effect test

Embodiment

[0050] Example parameters are as follows:

[0051] The magnetic control reactor is three-phase six-column, the third electronic switch, the fourth electronic switch, the fifth electronic switch and the sixth electronic switch are thyristors, and the excitation controller adopts TMS320F2812 chip.

[0052] The number of turns N of the main coil is 2222, and the number of turns of the fast demagnetization coil is 200 turns, which is 9% of the number of turns of the main coil. 9% of the number of turns of the coil, enamelled copper wire, the cross-sectional area of ​​the wire is 10 square millimeters.

[0053] The model of transformer T1 is 3kVA-400V / 1100V, the rated resistance / rated power of resistor R1 and resistor R3 is 100Ω / 2KW, the models of thyristor K3 and thyristor K5 are both KP8200-65, and the models of thyristor K4 and K6 are both For KP8400-65, the specifications of capacitor C1 and capacitor C2 are 3800μF / 1500V, and the rated resistance / rated power of resistor R2 and...

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Abstract

The invention discloses a magnetically controlled reactor system rapidly responding through longitudinal yoke coils and a working method. The magnetically controlled reactor system includes a rapid degaussing coil wound on a longitudinal yoke of the magnetically controlled reactor and a rapid excitation coil wound on the longitudinal yoke of the magnetically controlled reactor, the rapid degaussing coil and the rapid excitation coil are the same as a main coil in winding direction, and the system also includes a rapid degaussing circuit, a rapid excitation circuit, a transformer and a rapid excitation controller. The magnetically controlled reactor system has the beneficial effects that through the abovementioned technology, the problems that a magnetically controlled reactor is relatively slow in response speed and cannot rapidly provide enough reactive energy when a low voltage fault occurs in a power grid can be effectively solved, response time of the magnetically controlled reactor during low voltage rid through is improved by one order of magnitude, and a low voltage ride through requirement of a power grid is completely satisfied.

Description

technical field [0001] The invention relates to the field of high-voltage reactive power compensation, in particular to a magnetically controlled reactor system and a working method that respond quickly through longitudinal yoke coils. Background technique [0002] At present, the main problem of the existing magnetron reactor technology is the slow response speed. With the rapid development of wind power generation and the expansion of the backbone network, reactive power compensation is required to quickly output reactive energy when the power grid fails and low voltage occurs, to provide effective voltage support and help wind turbines to ride through low voltage. Avoid wind turbine off-grid. Relevant standards of the power industry stipulate that the response time of reactive power compensation equipment is less than 60ms to prevent large-scale wind turbines from going off-grid due to low voltage ride-through failures. However, the response time of the existing magneti...

Claims

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Application Information

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IPC IPC(8): H02J3/18H01F27/30H01F29/00H02P13/00
CPCY02E40/30H02J3/18H01F27/306H01F29/00H02P13/00
Inventor 谭文毕任玲艳
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY