Orthogonal magnetized single-phase controllable reactor

Abstract

The invention relates to an orthogonal magnetized single-phase controllable reactor which comprises a working iron core, a working winding (2), a first control iron core (5), a second control iron core (6), a first control winding (7) and a second control winding (8), wherein the working iron core is formed by a main iron core column (1), a first side yoke (11), a second yoke (12), a first side column (3) and a second side column (4). The main iron core column (1) is a single column with a constant cross section and is formed by superposing a plurality of iron core cakes with gaps. The working winding (2) is sheathed on the main iron core column (1); the first control iron core (5) and the second control iron core (6) are respectively orthogonal to the first side column (3) and the secondside column (4); and the first control winding (7) and the second control winding (8) are respectively sheathed on a first control side column (51) and a second control side column (61). The first side column (3) and the second side column (4) are arranged in a bilateral symmetry manner with respect to the main iron core column (1); and the first side yoke (11) and the second side yoke (12) are arranged in an upper and down symmetry manner with respect to the main iron core column (1). The control iron cores also can be arranged on the side yokes. The orthogonal magnetized single-phase controllable reactor can be applied to a high-voltage hierarchical system.

Description

technical field [0001] The invention relates to a reactor, in particular to a controllable reactor used in a power system. Background technique [0002] At present, the controllable reactor with adjustable magnetic bias can be divided into two types from the structure of the core: the magnetic valve type and the core column saturation type controllable reactor. Chinese patent 95223137.9 proposes a magnetic valve type controllable reactor, which changes the reactance of the winding by controlling the magnetic saturation state of the small cross-section section provided on the main core column, so as to achieve the purpose of changing the reactance value of the reactor. Its structural features are: the iron core is composed of two main iron core columns and corresponding iron yokes, and a small section section is provided on the two main iron core columns; each iron core column has a winding divided into upper and lower parts. The number of turns between the winding sub-joint...

AI Technical Summary

Problems solved by technology

Its shortcoming is that since the two main core columns are provided with small section sections, the structure is complex, the manufacturability is poor, and the cost is high.

The working windings of the two controllable reactors mentioned above, the control windings are set on the same core column, interact with each other, the cost is high, the harmonic characteristics are poor, and the power quality of the grid is greatly affected.

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