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Quick response magnetic control electric reactor

A magnetron reactor, fast response technology, applied in the direction of transformer/inductor coil/winding/connection, electrical components, output power conversion device, etc., can solve the problem of slow response speed, etc., to achieve high reliability and fast dynamic response , the effect of low cost

Active Publication Date: 2013-04-24
HEBEI XUHUI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the large inductance value of the first to fourth coils L1~L4 of the ordinary magnetron reactor, the charge and discharge time constant (τ=L / R) is large, so the response speed is slow

Method used

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Examples

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Embodiment Construction

[0020] Depend on figure 1 It can be seen from the illustrated embodiment that the fast-response magnetic control reactor is a three-phase or single-phase fast-response magnetic control reactor; each phase of the fast-response magnetic control reactor includes two symmetrically arranged iron core columns, which are set in two The first to fourth coils L1~L4 with taps, the first to second thyristors K1~K2, and the freewheeling diode D1 on the iron core column; the turns of the first to fourth coils L1~L4 are all It is N turns; the first coil L1 and the second coil L2 are sleeved on one iron core column, the third coil L3 and the fourth coil L4 are sleeved on the other iron core column, and the tail end D11 of the first coil L1 is connected to the fourth The first end D22 of the coil L4, the first end D12 of the second coil L2 are connected to the tail end D21 of the third coil L3, the positive pole of the freewheeling diode D1 is connected to the tail end D11 of the first coil L...

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Abstract

The invention relates to a quick response magnetic control electric reactor suitable for wind power field dynamic reactive compensation. The electric reactor is improved on the basis of a common magnetic control electric reactor in the prior art, and characterized in that a damping resistor R and an insulated gate bipolar translator (IGBT) connected with the damping resistor R in parallel are added. The damping resistor R is connected between the anode of a free-wheeling diode D1 and the tail end D11 of a first coil L1, the IGBT is connected with the damping resistor R in parallel, and a gate electrode G is connected with an output end of an IGBT drive chip. The turn number between a first tap K11 and a second tap K12 is n1, a first tap ratio of the first coil L1 and a second coil L2 is delta1 which equals to n1 / 2N and equals to 1.5-3.0%, the turn number between a third tap K21 and a fourth tap K22 is n2, and a second tap ratio of a third coil L3 and a fourth coil L4 is delta2 which equals to n2 / 2N and equals to 15-20%. The quick response magnetic control electric reactor has the advantages that by means of the damping resistor, fast demagnetization is realized, fast dynamic response of the magnetic control electric reactor is achieved, and the magnetic control electric reactor is simple, practical, high in reliability and low in cost.

Description

technical field [0001] The invention relates to a fast-response magnetically controlled reactor, which is suitable for a dynamic reactive power compensation device of a wind farm. Background technique [0002] Wind power is a kind of clean and renewable energy, and it is a new energy that all countries are competing to develop. The growth rate of my country's wind power installed capacity has been the highest in the world in recent years. In order to ensure the stability and reliability of the power grid, wind power grid connection must meet a series of strict conditions. For reactive power compensation, there are not only capacity requirements, but also a sufficiently fast response speed. State Grid Adjustment [2011] No. 974 "Notice on Printing and Distributing Key Points of Anti-accident Measures for Wind Power Grid-connected Operation" requires: "Wind farms should comprehensively consider various power generation output levels and the steady-state, temporary During the s...

Claims

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Application Information

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IPC IPC(8): H02P13/00H02J3/18H01F27/30H01F27/28
CPCY02E40/30
Inventor 李瑞桂张加玉王苏
Owner HEBEI XUHUI ELECTRIC
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