Vertical double excitation controllable electric reactor

Abstract

A vertical double excitation controllable electric reactor comprises an insulation sleeve, an iron core cylinder, an alternating current coil winding and a direct current bias winding. The direct current bias winding is wound inside and outside the iron core cylinder and connected with direct current bias current, and the iron core cylinder is sleeved inside the alternating current coil winding which is connected in series in an alternating current working circuit as a working winding, wherein, the alternating current coil winding and the direct current bias winding are mutually vertical and alternating current and direct current are applied to the alternating current coil winding and the direct current bias winding respectively, and tensor permeability of an electric reactor iron core is changed through the interaction of an alternating current magnetic field and a direct current magnetic field, accordingly, reactance value of the electric reactor is changed. The vertical double excitation controllable electric reactor has the advantages of being small in own harmonics, high in security coefficients, and small in electric reactor size, can be used in high-voltage direct current transmission, and can also be used as a tuning filtering inductor, an reactive power compensation inductor or an arc suppression coil higher harmonic filter in the electric 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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