Magnetic valve type controllable reactor

Abstract

The invention relates to a magnetic valve type controllable reactor which comprises a main iron core, wherein the main iron core comprises two half iron cores; the invention is characterized in that a valve port is arranged at the middle part of each half iron core, the half iron core is divided into an upper segment and a lower segment, a first winding (1), a second winding (2), a third winding (3) and a fourth winding (4) are respectively sleeved on each segment, and the upper end parts of the first winding (1) and the third winding (3) positioned at the upper part are connected in parallel; a first silicon controlled thyristor (5) is connected between a first tap (10) and a second tap (20); a second silicon controlled thyristor (6) is connected between a third tap (30) and a fourth tap (40); and a diode (7) is connected between a first winding end (11) and a second winding end (21). Under different periods, the silicon controlled thyristors are respectively conducted by a power supply to form pulsating direct current, and when the conduction angles of the silicon thyristor are changed, the magnitude of exciting current is changed, thereby changing the saturation degree of the valve port and smoothly regulating the capacity of the reactor.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a magnetic valve type controllable reactor. Background technique [0002] The magnetic valve type controllable reactor is an iron core with a valve port, and consists of a DC winding and an AC winding. Using DC excitation to control the saturation degree of the core valve port, thereby controlling and changing the inductance (reactance) value of the AC winding, it is called a magnetic valve controllable reactor. [0003] The phenomenon of ferromagnetism has been understood and applied by people about 100 years ago. Around 1916, the term "magnetic amplifier" based on the principle of saturable reactor appeared in foreign literature, but it was not until the development of nonlinear ferromagnetic theory and the appearance of performance-oriented magnetic materials that the technology and application of saturable reactors made great progress. . The performance improvement...

AI Technical Summary

Problems solved by technology

[0012] Magnetically saturated controllable reactors (referred to as controllable reactors) with the help of DC control have not received enough attention (except Russia) and popularization and application both internationally and domestically.

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