Intelligent dynamic reactive compensation device

Abstract

The invention discloses an intelligent dynamic reactive compensation device which is mainly used for solving the problem existing in the prior art that a compensation device can not quickly and effectively switch a filter capacitor reactor group to filter out harmonic waves in a system. The intelligent dynamic reactive compensation device comprises a cabinet, and also comprises a dynamic compensation controller, a thyristor switching switch, a filter reactor and a filter capacitor which are arranged in the cabinet and successively connected. By adopting the scheme, the intelligent dynamic reactive compensation device disclosed by the invention achieves the aim of effectively filtering out harmonic waves in the system, is safe and reliable, has great practical value and is very worthy of being generalized.

Description

technical field

[0001] The invention relates to a compensation device, in particular to an intelligent dynamic reactive power compensation device. Background technique

[0002] At present, when the power transmission and distribution system normally operates under the power frequency signal, with the increase of a large number of non-linear load electrical equipment, the harmonics injected into the power grid will also increase, which will cause voltage and current waveform distortion .

[0003] Although the traditional low-voltage reactive power compensation device thyristor switching capacitor bank can realize fast and non-contact switching of capacitors, the existence of harmonics will cause parallel resonance between the capacitor and the system, which will amplify the harmonic current and cause damage to the capacitor or burning of the thyristor. The common method in the power supply system is to use contactors to manually switch the power filter to eliminate harmonics...

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