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Three-phase imbalance phase-change switch

A commutation switch and switch technology, which is applied in the direction of reducing asymmetry of multi-phase network, eliminating/reducing asymmetry of multi-phase network, etc., can solve problems such as power failure, and achieve the goal of improving power failure, fast commutation, and realizing change Effect

Active Publication Date: 2021-06-29
浙江双成电气有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a three-phase unbalanced commutation switch, aiming at solving the technical problem of power failure during commutation

Method used

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  • Three-phase imbalance phase-change switch
  • Three-phase imbalance phase-change switch
  • Three-phase imbalance phase-change switch

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in t...

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Abstract

The invention discloses a three-phase imbalance phase-change switch. The three-phase imbalance phase-change switch comprises a thyristor optimization control module and a current compensation module connected with the thyristor optimization control module. The thyristor optimization control module comprises a thyristor switch unit and a relay coil, and the thyristor switch unit and the relay coil are connected in parallel. A variable capacitor in the thyristor optimization control module is charged and discharged through the current compensation module so that the polarity of the capacitor is changed, rapid commutation of the phase-change switch is realized, and the power failure condition during commutation is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a three-phase unbalanced commutation switch. Background technique [0002] With the continuous improvement of the national economic level, the demand for electric energy in all walks of life is also increasing. Therefore, power quality has become an urgent problem in the electric power industry. Among them, three-phase unbalance is an important factor affecting power quality. When the three-phase load of the distribution network is asymmetrical, the three-phase voltage of the system will be unbalanced, which will cause problems such as increased line loss, reduced output of distribution transformers, and damage to electrical equipment. Therefore, the control of the three-phase unbalance of the distribution network is a key issue for the stable operation of the distribution network. [0003] At present, one of the solutions to the problem of unbalanced three-phase in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 陈建平周华杜刚周明许锋尹志浩陶涛叶海强魏业文陆洲杰
Owner 浙江双成电气有限公司
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