Controllable and adjustable reactor

Abstract

A controllable and adjustable reactor disclosed by the present invention comprises a converter, an iron core inductance coil, an online fine tuning inductance coil, a capacitor, a double-pole switch and a power trigger module. The present invention aims at the change of the inductance value and the capacitance value of a current control system during the long-term operation process of an electricpower system to design the forward and reverse compensation control and the online inductance value fine tuning technology means. By controlling and adjusting, an equation omega (L+L0)-1 / omega C=0 canbe realized, thereby guaranteeing the normal work of a measurement device. According to the present invention, the online fine tuning inductance value L0 can be positive and negative and can be largeand small, the adjustment is flexible and convenient, the technical conditions of an equation omega (L+L0)=1 / omega C are conducive to being realized, thereby guaranteeing the stability of the power supply voltages of a power grid. Relative to the prior art, the controllable and adjustable reactor of the present invention can compensate the inductance value and the capacitance value in an online manner on the condition of uninterruptible power, thereby having the good application prospect.

Description

technical field [0001] The invention belongs to the grid control equipment in the electrotechnical technology, in particular to a controllable and adjustable reactor, which is used in systems and devices where the reactance needs to be adjustable. Background technique [0002] Patent No. ZL200510019185.1 Chinese invention patent "Magnetic Potential Balance Controllable Adjustable Reactor" is to connect the primary winding of the converter to the grid bus in series, and connect the secondary winding of the converter to the inductance coil and capacitor in series , the two ends of the capacitor are connected in parallel to the power trigger module, and the trigger signal of the latter is input by the relay protection system as a command signal, wherein the inductance value L of the inductance coil and the capacitance value C of the capacitor satisfy ωL=1 / ωC at the working frequency ω, Realizing reactance requires adjustable systems and devices. However, this device has the fo...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a controllable and adjustable reactor. Aiming at the problems and deficiencies in the prior art, it achieves the effect of convenient use and reliable operation, realizes the technical purpose of on-line bidirectional compensation and precise compensation, and solves the problem that the prior art cannot realize on-line Compensation for technical issues

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