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Rotary type adjustable parameter grid series reactor

A technology of series reactor and turntable type, which is applied in the direction of variable inductors, inductors, variable transformers, etc., to achieve the effect of simple structure, simplified structure, and improved adjustment speed

Active Publication Date: 2017-04-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that it is difficult to quickly change the load distribution in the line in the existing AC ring power grid, and provide a reactor with simple structure, low cost, and the ability to quickly change impedance parameters to adjust the current in the line

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  • Rotary type adjustable parameter grid series reactor
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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0020] The invention provides a turntable type adjustable parameter grid series reactor, the structure of which is as follows figure 1 As shown, it includes an iron core, a first main coil W1, a second main coil W2, a coupling coil W3, a capacitor C and a magnetic circuit adjustment mechanism; the iron core includes a matching main iron core T1 and a rotatable iron core block; A main coil W1 and a second main coil W2 are wound on the main iron core, the number of turns and the winding direction of the first main coil W1 and the second main coil W2 are the same, and they are connected in series; the coupling coil W3 is also wound on the main The iron core is connected in series with the capacitor; the magnetic circ...

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Abstract

A rotating disc typ adjustable parameter power grid series reactor comprises an iron core forming a magnetic circuit, two main coils winding the iron core and having the same winding numbers, a coupling coil winding the iron core and in a serial connection with a capacitor and a magnetic circuit adjusting mechanism changing a magnetic circuit structure. When adjustments for line currents are not required by a power grid, the two main coils are in the same shortest air-gap magnetic circuit, magnetic flow of the magnetic circuit is zero and resistance value serially connected to the power grid is zero; and when the line currents are required to be adjusted by the power grid, the two main coils are disposed in two different shortest air-gap magnetic circuits, magnetic flow of each shortest air-gap magnetic circuit reaches to the largest extent and the resistance module value serially connected to the power grid is maximum. The shortest air-gap magnetic flow path of the iron core can be changed via the magnetic circuit adjusting mechanism, so resistance parameters serially connected to the power grid can be thereby changed and line currents can be adjusted; and the rotating disc type adjustable parameter power grid series reactor is characterized by simple structure, low cost, fast reactor resistance parameter adjustment, frequent actions and reliable operations.

Description

technical field [0001] The invention relates to the field of current-limiting reactors in power systems, in particular to a parameter-adjustable current-limiting reactor. Background technique [0002] With the expansion of the scale of my country's AC transmission network, the load in various regions is increasing very rapidly. In order to ensure the continuity of power supply and improve the reliability of load power supply, the AC transmission network is connected into a ring network structure. For the ring structure power grid, in order to prevent one of the lines from being overloaded, it is necessary to adjust the load distribution in each line according to the changing characteristics of the load in each area. The traditional method is to adjust the load flow distribution in the line by adjusting the on-load voltage tap of the transformer on the line to change the voltage of each node. Since the on-load voltage regulation operation of the transformer will wear and bur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/10H01F27/24H02P13/00H02J3/00
Inventor 董清
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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