CN101908828A - Novel circuit topological structure of high-power four-quadrant rectifier - Google Patents
Novel circuit topological structure of high-power four-quadrant rectifier Download PDFInfo
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- CN101908828A CN101908828A CN2010102428862A CN201010242886A CN101908828A CN 101908828 A CN101908828 A CN 101908828A CN 2010102428862 A CN2010102428862 A CN 2010102428862A CN 201010242886 A CN201010242886 A CN 201010242886A CN 101908828 A CN101908828 A CN 101908828A
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- rectifier
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Abstract
The invention discloses a circuit topological structure of a high-power four-quadrant rectifier, comprising a three-phase connecting wire led from a high-voltage terminal, and a transformer T, wherein the three-phase connecting wire is connected with a primary coil of the transformer T; a secondary coil of the transformer T is connected with a bridge rectifier circuit consisting of rectifier cabinets CU1 and CU2 through a lead wire; a bridge arm of the bridge rectifier circuit is respectively connected with circulation reactors L1, L2, L3 and L4 in series; both output ends of the bridge rectifier circuit are respectively connected with a disconnecter in series through a lead wire and then respectively switched into both ends of superconductive load SC; and a bypass cabinet BP is connected between both output ends of the bridge rectifier circuit in parallel. In the circuit structure, a back-to-back mode of a thyristor is changed into a bridge back-to-back mode, and the possibility of false triggering is greatly reduced. The peak value of short-circuit current can be greatly reduced even if short trouble of false triggering happened. The invention greatly improves the safety and the reliability of the operation of the rectifier.
Description
Technical field
The circuit topological structure of a kind of high-power four-quadrant rectifier of the present invention.
Background technology
Under a lot of occasions, four-quadrant rectifier is thyristor " back-to-back ".The shortcoming of this structure is that when the thyristor of the main structure of a bridge bore reverse voltage, the thyristor of anti-bridge just in time bore forward voltage, was easy to cause the short trouble of false triggering.
In case the false triggering short trouble of brachium pontis takes place, the AC side of rectifier is in the replacing of two-phase and three-phase shortcircuit process, cause the very big failed shorted electric current of peak value.Even, then might cause the on fire of whole brachium pontis, even whole power supply burnt if fast acting fuse can not move.
Summary of the invention
The circuit topological structure that the purpose of this invention is to provide a kind of high-power four-quadrant rectifier changes " back-to-back " of thyristor " back-to-back " of three-phase full-controlled bridge into, then, increases by two circulation reactors, suppresses the peak value of the short circuit current of false triggering.
Technical scheme of the present invention is as follows:
A kind of circuit topological structure of high-power four-quadrant rectifier, include three phase connections and the transformer T that draw from high-voltage terminal, it is characterized in that: described three phase connections link to each other with the primary coil of described transformer T, be connected to the bridge rectifier of forming by rectifier cabinet CU1, CU2 by lead on the secondary coil of transformer T, be serially connected with circulation reactor L1, L2, L3 and L4 on the brachium pontis of described bridge rectifier respectively; Two outputs of described bridge rectifier by inserting the two ends of superconduction load SC behind the lead serial connection isolating switch disconnecter respectively, also are parallel with bypass cabinet BP between two outputs of described bridge rectifier respectively.
Beneficial effect of the present invention:
Circuit structure of the present invention changes " back-to-back " of thyristor " back-to-back " of bridge-type into, greatly reduces the probability of false triggering; Even the short trouble of false triggering takes place, the peak value of short circuit current also can reduce significantly, has greatly improved the fail safe and the reliability of rectifier operation.
Description of drawings
Fig. 1 is a circuit structure schematic diagram of the present invention.
Embodiment
Referring to Fig. 1, a kind of circuit topological structure of high-power four-quadrant rectifier, include three phase connections and the transformer T that draw from high-voltage terminal, three phase connections link to each other with the primary coil of transformer T, be connected to the bridge rectifier of forming by rectifier cabinet CU1, CU2 by lead on the secondary coil of transformer T, be serially connected with circulation reactor L1, L2, L3 and L4 on the brachium pontis of bridge rectifier respectively; Two outputs of bridge rectifier by inserting the two ends of superconduction load SC behind the lead serial connection isolating switch disconnecter respectively, also are parallel with bypass cabinet BP between two outputs of bridge rectifier respectively.
Claims (1)
1. the circuit topological structure of a high-power four-quadrant rectifier, include three phase connections and the transformer T that draw from high-voltage terminal, it is characterized in that: described three phase connections link to each other with the primary coil of described transformer T, be connected to the bridge rectifier of forming by rectifier cabinet CU1, CU2 by lead on the secondary coil of transformer T, be serially connected with circulation reactor L1, L2, L3 and L4 on the brachium pontis of described bridge rectifier respectively; Two outputs of described bridge rectifier by inserting the two ends of superconduction load SC behind the lead serial connection isolating switch disconnecter respectively, also are parallel with bypass cabinet BP between two outputs of described bridge rectifier respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102428862A CN101908828A (en) | 2010-07-27 | 2010-07-27 | Novel circuit topological structure of high-power four-quadrant rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102428862A CN101908828A (en) | 2010-07-27 | 2010-07-27 | Novel circuit topological structure of high-power four-quadrant rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101908828A true CN101908828A (en) | 2010-12-08 |
Family
ID=43264180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102428862A Withdrawn CN101908828A (en) | 2010-07-27 | 2010-07-27 | Novel circuit topological structure of high-power four-quadrant rectifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101908828A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002632A (en) * | 2011-09-07 | 2013-03-27 | 杨泰和 | Lighting device with optical pulsation suppression by polyphase-driven electric energy |
| CN103580494A (en) * | 2012-07-19 | 2014-02-12 | 台达电子工业股份有限公司 | Converter system |
| CN106208625A (en) * | 2016-07-27 | 2016-12-07 | 中国科学院等离子体物理研究所 | The big electric current four-quadrant thyristor current transformer integrated structure design method of band bypass |
-
2010
- 2010-07-27 CN CN2010102428862A patent/CN101908828A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002632A (en) * | 2011-09-07 | 2013-03-27 | 杨泰和 | Lighting device with optical pulsation suppression by polyphase-driven electric energy |
| CN103002632B (en) * | 2011-09-07 | 2017-07-07 | 杨泰和 | Electric energy is driven to suppress lighting device with optical pulsation by means of multiphase |
| CN103580494A (en) * | 2012-07-19 | 2014-02-12 | 台达电子工业股份有限公司 | Converter system |
| US9166491B2 (en) | 2012-07-19 | 2015-10-20 | Delta Electronics, Inc. | Converter system for limiting circulating current |
| CN103580494B (en) * | 2012-07-19 | 2016-04-20 | 台达电子工业股份有限公司 | Converter system |
| CN106208625A (en) * | 2016-07-27 | 2016-12-07 | 中国科学院等离子体物理研究所 | The big electric current four-quadrant thyristor current transformer integrated structure design method of band bypass |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20101208 |