Integrated intelligent variable capacitor

A technology of capacitors and capacitor banks, applied to AC networks to reduce harmonics/ripples, reactive power compensation, harmonic reduction devices, etc., can solve problems such as inaccurate compensation or harmonic elimination, rapid recovery loss, and low construction efficiency , to achieve the effect of preventing overheating damage and reducing costs
CN102013686AInactive Publication Date: 2011-04-13SUZHOU DINGAN ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SUZHOU DINGAN ELECTRONICS TECH
Publication Date
2011-04-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an integrated intelligent variable capacitor, which comprises a shell and a capacitor bank arranged in the shell. The integrated intelligent variable capacitor is characterized in that: the capacitor bank comprises a plurality of basic capacitor units, wherein the minimum capacitance value in the basic capacitor units is used as a base number, and the multiplying power of the capacitance value of each basic capacitor unit relative to the base number corresponds to a digital value with bit right in a numerical value coding system; and the capacitor bank is provided with a control system and a switching mechanism, wherein the control system comprises a control signal receiving device and a coding scheme generating device, and the coding scheme generating device generates a code according to the control signal received by the control signal receiving device to control the operation of the switching mechanism and realize output of capacitance values. Adjustment of random precision and random range of the capacitor can be realized, and the capacitor can be conveniently manufactured into nominal series products and products of special specifications customized according to special requirements.
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Description

technical field

[0001] The invention relates to a capacitor, in particular to an integrated capacitor with a controllable and variable output capacitance value, which can be used as a reactive power compensation and harmonic elimination device in a grid power supply system. Background technique

[0002] Due to the existence of a large number of nonlinear power consumption (inductive load and capacitive load), in the process of power network construction, transformation and operation, eliminating the resulting reactive power and harmonics has become an indispensable requirement. How to more effectively compensate reactive power and eliminate harmonics to improve power quality has become the focus of modern power grid operation and management.

[0003] In the existing reactive power compensation and harmonic elimination technology, a capacitor (group) with fixed value is generally used. Although different levels of capacitance values ​​can be obtained, there may be a gap betwe...

Claims

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