CN103178725A - Device for processing inherent alternating component of large-power rectifier - Google Patents
Device for processing inherent alternating component of large-power rectifier Download PDFInfo
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- CN103178725A CN103178725A CN2011104318791A CN201110431879A CN103178725A CN 103178725 A CN103178725 A CN 103178725A CN 2011104318791 A CN2011104318791 A CN 2011104318791A CN 201110431879 A CN201110431879 A CN 201110431879A CN 103178725 A CN103178725 A CN 103178725A
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- alternating current
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Abstract
The invention relates to a device for processing inherent alternating component of a large-power rectifier and belongs to the technical field of rectifier conversion systems. Two inherent alternating component private channels are arranged at the outlet position of a rectifier bridge arm, the rectifier bridge arm is connected with a rectifying element, the rectifying element is connected to the alternating current side of the rectifier through a busbar system, and the rectifier bridge arm is connected with the direct current side of the rectifier through a converge busbar after the inherent alternating component private channels short out. The device for processing the inherent alternating component of the large-power rectifier has the advantages that the inherent alternating component are led from the private channels through shortest paths after the inherent alternating component private channels are added, and accordingly reactive loss produced by the inherent alternating component of the rectifier is reduced to the most extent. Due to the fact that a busbar cross section is increased, the electric current density is decreased, the heating effect of a busbar is reduced remarkably, and accordingly the effects of saving the rectifier energy, reducing loss and improving the efficiency are achieved.
Description
Technical field
The present invention relates to the intrinsic alternating current component device of a kind of processing heavy-duty rectifier, it belongs to the technical field of rectifier converter system.
Background technology
The electrolytic aluminium factory heavy-duty rectifier extensively adopts the cophase counter parallel connection structure, has 2 times, 4 times larger intrinsic alternating current components in the inner brachium pontis busbar of this rectifier, and the inner or outside direct current busbar that confluxes carries out conducting to this intrinsic alternating current component by rectifier.On the one hand, the intrinsic alternating current component of this part produces the idle conductive bus bar of flowing through, and makes the serious heating in surface of conductive bus bar, thereby the loss increase of rectifier, rectification efficiency are reduced.On the other hand because this intrinsic alternating current component is alternating current, alternating current can make conductive bus bar produce kelvin effect, therefore inner at rectifier, this partially conductive busbar all adopts water-cooling copper bar, take away a large amount of heating loss that produce due to above effect by water-cooling pattern, under this mode, although remain in normal range (NR) by the cooling conductive bus bar temperature of water-cooling pattern, but the heating effect of its generation still exists, and this heating effect reduces the loss increase of rectifier, rectification efficiency.
Summary of the invention
The invention provides the intrinsic alternating current component device of a kind of processing heavy-duty rectifier in order to solve the problems of the technologies described above, purpose is to reduce the heating effect of busbar, thereby has realized the effect that rectifier is energy-conservation, reduce the wastage, raise the efficiency.
Process the intrinsic alternating current component device of heavy-duty rectifier for reaching above-mentioned purpose the present invention, in the rectifying bridge arm exit, two intrinsic alternating current component designated lanes are set, rectifying bridge arm connects rectifier cell, rectifier cell is connected to the rectifier AC by the busbar system, and rectifying bridge arm is connected with the rectifier DC side by the busbar that confluxes after intrinsic alternating current component designated lane short circuit.
Described rectifier cell is diode or controllable silicon.
Described intrinsic alternating current component designated lane is water-cooling copper bar.
Advantageous effect of the present invention: after increasing intrinsic alternating current component designated lane, this intrinsic alternating current component from designated lane with the shortest path conducting, thereby reduced largely the reactive loss that the intrinsic alternating current component of rectifier produces, the intrinsic alternating current component designated lane of this section adopts water-cooling copper bar, due to the reduction of reactive loss, the water-cooled bearing power of rectifier also will decrease; The intrinsic alternating current component electric current busbar that confluxes of no longer flowing through after the conducting of intrinsic alternating current component designated lane, the electric current that flow to the busbar that confluxes from rectifying bridge arm only has DC component, this DC component can not produce larger kelvin effect, so this section busbar can adopt heavy in section copper busbar or aluminium busbar to make, and adopt but mode of air-cooled.Due to busbar cross section increase, current density reduces, and the heating effect of this section busbar will significantly reduce, thereby realize the effect that rectifier is energy-conservation, reduce the wastage, raise the efficiency.
Intrinsic alternating current component designated lane exists 2 times, 4 times larger intrinsic alternating current components that short circuit path is provided take shortest path in the brachium pontis busbar of rectifier inside, thereby reduced largely the reactive loss that in rectifier, intrinsic interchange shunting produces, correspondingly reduced the water-cooled bearing power of rectifier.
Description of drawings
Fig. 1 is system configuration schematic diagram of the present invention.
In figure: 1, intrinsic alternating current component designated lane; 2, rectifying bridge arm; 3, the busbar that confluxes; 4, rectifier cell; 5, busbar system; 6, rectifier AC; 7, rectifier DC side.
Specific implementation method
The invention will be further described below in conjunction with accompanying drawing.
Process as shown in Figure 1 the intrinsic alternating current component device of heavy-duty rectifier, in rectifying bridge arm 2 exits, two intrinsic alternating current component designated lanes 1 are set, rectifying bridge arm 2 connects rectifier cell 4, rectifier cell 4 is connected to rectifier AC 6 by busbar system 5, and rectifying bridge arm 2 is connected with rectifier DC side 7 by the busbar 3 that confluxes after intrinsic alternating current component designated lane 1 short circuit.
Rectifier cell 4 is diode or controllable silicon.
Intrinsic alternating current component designated lane 1 is water-cooling copper bar.
The general rectifier transformer that connects of rectifier AC 6, rectifier DC side 7 generally is connected to the bus-bar system of electrolysis power supply.
Intrinsic alternating current component designated lane 1 of the present invention is arranged on each rectifying bridge arm 2 exits of rectifier, and positive pole and negative pole respectively arrange one group, has 2 times, 4 times larger intrinsic alternating current component electric current I take shortest path as rectifier in inner rectifying bridge arm 2
1Short circuit path is provided, thereby has reduced largely the reactive loss that the intrinsic alternating current component of rectifier produces, correspondingly reduced the water-cooled bearing power of rectifier.
After intrinsic alternating current component designated lane 1 is set, flow to the electric current I of the busbar 3 that confluxes from rectifying bridge arm 2
2DC component is only arranged, thereby this section busbar can adopt air-cooled mode copper busbar or the aluminium busbar of heavy in section low current density, thereby reduces significantly the bus heating effect, reduces the rectifier loss, realize the energy-saving effect of rectification, improved the rectification efficiency of rectifier.
Claims (3)
1. process the intrinsic alternating current component device of heavy-duty rectifier, comprise rectifier AC and rectifier DC side, it is characterized in that in the rectifying bridge arm exit, two intrinsic alternating current component designated lanes being set, rectifying bridge arm connects rectifier cell, rectifier cell is connected to the rectifier AC by the busbar system, and rectifying bridge arm is connected with the rectifier DC side by the busbar that confluxes after intrinsic alternating current component designated lane short circuit.
2. the intrinsic alternating current component device of processing heavy-duty rectifier according to claim 1, is characterized in that described rectifier cell is diode or controllable silicon.
3. the intrinsic alternating current component device of processing heavy-duty rectifier according to claim 1, is characterized in that described intrinsic alternating current component designated lane is water-cooling copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104318791A CN103178725A (en) | 2011-12-21 | 2011-12-21 | Device for processing inherent alternating component of large-power rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104318791A CN103178725A (en) | 2011-12-21 | 2011-12-21 | Device for processing inherent alternating component of large-power rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103178725A true CN103178725A (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104318791A Pending CN103178725A (en) | 2011-12-21 | 2011-12-21 | Device for processing inherent alternating component of large-power rectifier |
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| Country | Link |
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| CN (1) | CN103178725A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697942Y (en) * | 2004-04-29 | 2005-05-04 | 哈尔滨志阳汽车电气股份有限公司 | Rectifier for generator of car |
| CN201663540U (en) * | 2010-03-04 | 2010-12-01 | 四川英杰电气有限公司 | Rectifier component |
| CN101924455A (en) * | 2010-07-27 | 2010-12-22 | 中国科学院等离子体物理研究所 | Current equalizing structure of high-current rectifier bridge arm |
-
2011
- 2011-12-21 CN CN2011104318791A patent/CN103178725A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2697942Y (en) * | 2004-04-29 | 2005-05-04 | 哈尔滨志阳汽车电气股份有限公司 | Rectifier for generator of car |
| CN201663540U (en) * | 2010-03-04 | 2010-12-01 | 四川英杰电气有限公司 | Rectifier component |
| CN101924455A (en) * | 2010-07-27 | 2010-12-22 | 中国科学院等离子体物理研究所 | Current equalizing structure of high-current rectifier bridge arm |
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Application publication date: 20130626 |