Iron core column with symmetric structure of three-phase magnetically controlled reactor

Abstract

The invention discloses an iron core column with a symmetric structure of a three-phase magnetically controlled reactor. The iron core column comprises a central shaft and three phase planes, wherein each phase plane is internally provided with two iron cores parallel to the central shaft, the two iron cores in the same phase plane are symmetrically arranged by taking the central shaft as a symmetry axis to form a phase, and the ends of any two adjacent iron cores in the same direction are all linked into a whole through magnetic yokes. By designing the structural style of the iron core column to be in cubical symmetry, and arranging the iron cores by taking the central shaft as the symmetry axis, compared with a conventional arrangement mode of the iron cores, on the premise of same capacity, the structure can reduce the using amount of iron core materials, inhibit the generation of own harmonic to the utmost extent, and reduce iron core loss and occupied area. The iron core column shortens the length of an equivalent alternating-current magnetic circuit, and can reduce magnetic resistance and iron core loss of the reactor, improve the non-load and load efficiency of the reactor, and be used in the field of transformer devices.

Description

technical field [0001] The invention relates to a three-phase magnetic control reactor in the field of transformer devices, in particular to an iron core column of the three-phase magnetic control reactor. Background technique [0002] The magnetron reactor is an important equipment of the static var compensator widely used in the power system. The application of the new var compensator composed of it and the fixed capacitor FC is an important development direction of the high voltage compensation of the power system. Among the magnetron reactors, the split core magnetron reactor is the most widely used. Since the split core magnetron reactor changes the saturation of the iron core through the DC bias formed by the winding coil, the corresponding magnetic circuit must have a special DC magnetic flux closed path in addition to the AC magnetic flux closed path. . For the single-phase split core magnetron reactor, it is divided into two types: planar type and vertical type. ...

AI Technical Summary

Problems solved by technology

For the three-phase split core magnetron reactor, it is divided into two types: single row and double row. If the reactance level is high and the capacity is large, but the actual situation does not allow the iron core to be too high, It is also possible to fold each iron core column into two to form a 12-column three-phase magnetron reactor, which can effectively reduce the amount of iron core and save a certain cost, but their biggest disadvantage is the symmetry of the magnetic circuit Not good, it makes the compensation uneven and affects the compensation effect

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