Vertical double-excitation controllable electric reactor

Abstract

A vertical double-excitation controllable electric reactor comprises an insulating sleeve, an iron core cylinder, an alternating current coil winding and a direct current bias winding, wherein the direct current bias winding is wound inside and outside the iron core cylinder and connected with direct current bias current, the iron core cylinder is sleeved inside the alternating current coil winding, and the alternating current coil winding serves as a working winding and is connected in an alternating current loop in series. The alternating current coil winding and the direct current bias winding are perpendicular to each other, and alternating current and direct current are lead into the alternating current coil winding and the direct current bias winding respectively. The tensor permeability of an iron core of the electric reactor and a reactance value of the electric reactor are changed through mutual effect of an alternating current magnetic field and a direct current magnetic field. The vertical double-excitation controllable electric reactor has the advantages of being small in harmonic wave, high in safety factors and small in volume, can be used for high-voltage direct current transmission and can also used as a harmonic filter inductor, a reactive compensation inductor or an arc suppression coil higher-harmonic filter in an electric power system.

Description

technical field [0001] The invention relates to the application field of electric equipment and new materials, in particular to a controllable reactor. Background technique [0002] As an indispensable device in the power system, controllable reactors are widely used and have great potential for technological upgrading. The following briefly lists its typical applications and functions. [0003] (1) Used as phase modulation and voltage regulation equipment in ultra-high voltage power grid [0004] Because the controllable reactor can be made into any voltage level and directly connected to the ultra-high voltage power grid, it has significant technical advantages and economical efficiency. In the hub station and large terminal station of the ultra-high voltage power grid, in order to compensate the reactive power required by the area to adjust the voltage and maintain the stability of the system, and for the construction of pit mouth power stations and large hydropower sta...

AI Technical Summary

Problems solved by technology

When used in high-voltage lines, the control winding of the contact controllable reactor will generate a high induction potential, which puts forward higher requirements for the insulation level of the winding, thus increasing the cost and correspondingly increasing The volume of the reactor

The harmonics caused by the nonlinear part of the B-H section and the higher requirements on the insulation level are the obvious deficiencies of the existing contact controllable reactors.

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