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Intelligent dynamic reactive compensation device

A compensation device, intelligent dynamic technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, harmonic reduction device, etc., to achieve the effects of avoiding zero-crossing compensation, low noise, and improving power supply quality

Inactive Publication Date: 2013-03-13
成都星宇融科电力电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent dynamic reactive power compensation device, which mainly solves the problem that the compensation device in the prior art cannot quickly and effectively switch filter capacitor reactor groups to filter out system harmonics

Method used

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Embodiment

[0023] In order to solve the problem that the compensation device in the prior art cannot quickly and effectively switch the filter capacitor reactor group to filter out system harmonics, such as figure 1 As shown, the present invention discloses an intelligent dynamic reactive power compensation device, including a box body, and a dynamic compensation controller that can effectively suppress the system harmonic amplification and absorb most of the harmonic current; , fast and reliable thyristor switching switch; filter reactor, dry-type iron core reactor is selected in the present invention, which has the advantages of strong overcurrent capacity, not easy to be saturated, small temperature rise, low noise; Dry-type, oil-free design filter capacitor with less heat generation, low temperature rise, long service life, and good self-healing performance. In order to ensure the safety of the device during operation, the thyristor switching switch in the present invention is also c...

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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...

Claims

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Application Information

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IPC IPC(8): H02J3/18H02J3/01
CPCY02E40/30Y02E40/40
Inventor 陈财建罗海卫袁强唐克胜柴若愚罗军
Owner 成都星宇融科电力电子股份有限公司
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