Hybrid excitation triggered double exciting winding MCR (magnetically controlled reactor)

Abstract

The invention relates to a hybrid excitation triggered double exciting winding MCR (magnetically controlled reactor). The MCR comprises two iron cores, wherein two groups of coils wind each iron core; the four groups of coils intersect and are connected with each other in parallel; taps are led out from the middle of a group of coils on each iron core; and controllable devices are connected between the taps and the other group of coils winding the iron core. The MCR is characterized in that another group of coils is compounded on each iron core; and the two groups of coils are reversely connected with each other in series and form a loop with a rectifier bridge circuit formed by two controllable devices reversely connected with each other in parallel. The MCR has the following beneficial effects: quick excitation and demagnetization can be realized and the tap voltage is unnecessary to be improved; the ultrahigh voltage quick dynamic reactive compensation device for flexible power transmission and distribution becomes reality by utilizing the device; the MCR device can be applied to the ultrahigh voltage quick fluctuation sites; the MCR can replace the traditional TCR (thyristor controlled reactor) static compensation devices; and the MCR device can ensure the arc suppression coil in quick response to be applied in the power system.

Description

technical field [0001] The invention relates to an MCR type magnetically controlled reactor, which can be applied to reactive power compensation, high-voltage soft starters and other fields where magnetically controlled reactor devices are used. Background technique [0002] Magnetic control reactor (Magneticaiiy Controlled Reactor), as a type of static reactive power compensation device, was introduced into China at the end of last century. Due to its small footprint, high reliability, low loss, small waveform distortion, and easy control, it is widely used in mining, metallurgy, electric power and other industries. It has become a good choice to replace Thyristor Controlled Reactor. [0003] For the magnetic control reactor, its basic working principle is to use the DC control current to control the saturation of the iron core to smoothly and continuously adjust the reactor capacity. The significant difference between the MCR type magnetic control reactor (hereinafter re...

AI Technical Summary

Problems solved by technology

[0005] In foreign countries, major design manufacturers tend to increase the response speed by increasing the tap voltage of the main body, but after careful analysis, it is not difficult to find that this method cannot fully play a role when the main body needs to be demagnetized

And the increase of the tap voltage also greatly hinders its application in the ultra-high voltage field

Images