CN103268812A - Multichannel equalizing reactor - Google Patents
Multichannel equalizing reactor Download PDFInfo
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- CN103268812A CN103268812A CN2013100527424A CN201310052742A CN103268812A CN 103268812 A CN103268812 A CN 103268812A CN 2013100527424 A CN2013100527424 A CN 2013100527424A CN 201310052742 A CN201310052742 A CN 201310052742A CN 103268812 A CN103268812 A CN 103268812A
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Abstract
The invention discloses a multichannel equalizing reactor, which comprises a shell and an iron core, wherein the iron core comprises an iron yoke and a three-phase core column which form a three-phase magnetic circuit; the three-phase core column is provided with a three-phase input coil conductor and a three-phase output coil conductor which are made of cooper bars; an A-phase input coil conductor and a C-phase output coil conductor share a first core column and have opposite magnetic circuits; an A-phase output coil conductor and a B-phase input coil conductor share a second core column and have opposite magnetic circuits; a B-phase output coil conductor and a C-phase input coil conductor share a third core column and have opposite magnetic circuits; the A-phase input coil conductor and the A-phase output coil conductor, the B-phase input coil conductor and the B-phase output coil conductor and the C-phase input coil conductor and the C-phase output coil conductor are connected through a connecting copper bar respectively; and the A-phase, B-phase and C-phase output coil conductors are electrically connected. Compared with a common equalizing reactor, the multichannel equalizing reactor has the characteristics of large load current, low temperature rise, low noise, low loss and the like.
Description
Technical field
The present invention relates to the reactor technical field, particularly a kind of high power contravariant device multichannel equalizing reactor.
Background technology
Along with the fast development of power electronic technology, the big volume controlled of photovoltaic DC-to-AC converter forward, high reliability development.Adopt a plurality of power device parallel connections, become the most convenient, the reliable scheme of inverter dilatation.Yet the inverter of multi-channel parallel exists the phenomenon that electric current distributes the loop circulation uneven, that switching time, difference caused, and equalizing reactor is obvious to suppressing power device output current difference effect.Along with the extensive use of high-power combining inverter in the new forms of energy industry, the reactor structure of traditional two-way parallel connection can't satisfy present market demands.Seriously restricting the development of electronic power convertor.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high power contravariant device multichannel equalizing reactor at the existing problem of reactor structure of traditional two-way parallel connection.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
The multichannel equalizing reactor, comprise shell and setting iron core in the enclosure, wherein iron core comprises the iron yoke that constitutes three-phase magnetic circuit, the three-phase stem stem, it is characterized in that, be provided with the A phase input coil conductor that adopts copper bar to make at the three-phase stem stem, A phase output winding conductor, B phase input coil conductor, B phase output winding conductor, C phase input coil conductor, C phase output winding conductor, wherein A phase input coil conductor is opposite with shared first stem stem of C phase output winding conductor and magnetic circuit, A phase output winding conductor is opposite with shared second stem stem of B phase input coil conductor and magnetic circuit, and B phase output winding conductor is opposite with shared the 3rd stem stem of C phase input coil conductor and magnetic circuit; Being connected copper bar by first between A phase input coil conductor and the A phase output winding conductor connects, be connected copper bar by second between B phase input coil conductor and the B phase output winding conductor and connect, be connected the copper bar connection by the 3rd between C phase input coil conductor and the C phase output winding conductor; Described A phase output winding conductor, B phase output winding conductor and C output winding conductor mutually are electrically connected.
In a preferred embodiment of the invention, be connected with an A phase input coil conductor lambda line copper bar that extends outside the shell at described A phase input coil conductor, be connected with one on the A phase output winding conductor and extend the outer A phase output winding conductor outlet copper bar of shell, be connected with one on the B phase input coil conductor and extend the outer B phase input coil conductor lambda line copper bar of shell, be connected with one on the B phase output winding conductor and extend the outer B phase output winding conductor outlet copper bar of shell, be connected with one on the C phase input coil conductor and extend the outer C phase input coil conductor lambda line copper bar of shell, be connected with one on the C phase output winding conductor and extend the outer C phase output winding conductor outlet copper bar of shell, A, B, C phase output winding conductor outlet copper bar is electrically connected by total outlet copper bar.
In a preferred embodiment of the invention, described iron core and the A that is positioned at described shell input coil conductor mutually, A phase output winding conductor, B phase input coil conductor, B phase output winding conductor, C phase input coil conductor, C phase output winding conductor and first, two, three A that connect copper bars and partly be positioned at shell are input coil conductor lambda line copper bar mutually, A phase output winding conductor outlet copper bar, B phase input coil conductor lambda line copper bar, B phase output winding conductor outlet copper bar, C phase input coil conductor lambda line copper bar, C phase output winding conductor outlet copper bar adopts fluid sealant to be potted in the described shell and reserves a plurality of thermal holes.
Owing to adopted technique scheme, the present invention compares with existing equalizing reactor, has following advantage:
1, the present invention is opposite with C phase output magnetic circuit by adopting A to import mutually, shares same stem stem, cancels out each other restriction circulation.In like manner A export mutually with B import mutually, B exports mutually and C item input is all offset in twos, novel electrical structure designs such as restriction circulation by novel electrical structure design, have solved the problem that traditional multi-channel parallel structure can't current-sharing.
2, adopt whole dosing technology.After the reactor embedding, make the product integrally curing, not only effectively reduce noise, simultaneously by the louvre of reservation, effectively improved the heat dispersion of reactor.
3, coil-conductor replaces common electromagnetic wire by adopting copper bar, thereby solves problems such as current-carrying that big electric current brings, temperature rise.
The present invention compares with common equalizing reactor, and characteristics such as load current is big, temperature rise is low, noise is low, loss is low are arranged.
Description of drawings
Fig. 1 is electrical schematic diagram of the present invention.
Fig. 2 is surface structure front view of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the end view of Fig. 2.
Fig. 5 is surface structure schematic perspective view of the present invention.
Fig. 6 is the assembling front view between iron core of the present invention and the copper bar.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the end view of Fig. 6.
Fig. 9 is the assembling schematic perspective view between iron core of the present invention and the copper bar.
Embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 9, the high power contravariant device multichannel equalizing reactor that provides among the figure, comprise shell 100 and setting iron core 200 in the enclosure, wherein iron core 200 comprises the iron yoke 210 that constitutes three-phase magnetic circuit, three- phase stem stem 220a, 220b, 220c, stem stem 220a is provided with A phase input coil conductor 230a and C, and output winding conductor 250b and both magnetic circuits are opposite mutually, stem stem 220b is provided with B phase input coil conductor 240a and A, and output winding conductor 230b and both magnetic circuits are opposite mutually, and stem stem 220c is provided with C phase input coil conductor 250a and B, and output winding conductor 240b and both magnetic circuits are opposite mutually.
Connect by being connected copper bar 260a between A phase output winding conductor 230a and the A phase output winding conductor 240b, connect by being connected copper bar 260b between B phase input coil conductor 240a and the B phase output winding conductor 250b, between C phase input coil conductor 250a and the C phase output winding conductor 230b by being connected copper bar 260c connection.
Be connected with an A phase input coil conductor lambda line copper bar 270a who extends outside the shell 100 at A phase input coil conductor 230a, be connected with an A phase output winding conductor outlet copper bar 270b who extends outside the shell 100 on the A phase output winding conductor 230b, be connected with a B phase input coil conductor lambda line copper bar 280a who extends outside the shell 100 on the B phase input coil conductor 240a, be connected with a B phase output winding conductor outlet copper bar 280b who extends outside the shell 100 on the B phase output winding conductor 240b, be connected with a C phase input coil conductor lambda line copper bar 290a who extends outside the shell 100 on the C phase input coil conductor 250a, be connected with a C phase output winding conductor outlet copper bar 290b who extends outside the shell 100 on the C phase output winding conductor 250b, A, B, C phase output winding conductor outlet copper bar 270b, 280b, 280c is electrically connected by total outlet copper bar 300.
At iron core 200 and A phase input coil conductor 230a, A phase output winding conductor 230b, B phase input coil conductor 240a, B phase output winding conductor 240b, C phase input coil conductor 250a, C phase output winding conductor 250b, connect copper bar 260a, 260b, 260c, A phase input coil conductor lambda line copper bar 270a, A phase output winding conductor outlet copper bar 270b, B phase input coil conductor lambda line copper bar 280a, B phase output winding conductor outlet copper bar 280b, C phase input coil conductor lambda line copper bar 290a, C phase output winding conductor outlet copper bar 290b, after total outlet copper bar 300 assembles, the whole shell 100 of putting into adopts fluid sealant 400 embeddings to get final product then.When adopting fluid sealant 400 embeddings, reserve a plurality of thermal holes 410 and be beneficial to heat radiation.
The present invention is opposite with C phase output magnetic circuit by adopting A to import mutually, shares same stem stem, cancels out each other restriction circulation.In like manner A export mutually with B import mutually, B exports mutually and C item input is all offset in twos, novel electrical structure designs such as restriction circulation by novel electrical structure design, have solved the problem that traditional multi-channel parallel structure can't current-sharing.
Claims (3)
1. multichannel equalizing reactor, comprise shell and setting iron core in the enclosure, wherein iron core comprises the iron yoke that constitutes three-phase magnetic circuit, the three-phase stem stem, it is characterized in that, be provided with the A phase input coil conductor that adopts copper bar to make at the three-phase stem stem, A phase output winding conductor, B phase input coil conductor, B phase output winding conductor, C phase input coil conductor, C phase output winding conductor, wherein A phase input coil conductor is opposite with shared first stem stem of C phase output winding conductor and magnetic circuit, A phase output winding conductor is opposite with shared second stem stem of B phase input coil conductor and magnetic circuit, and B phase output winding conductor is opposite with shared second stem stem of C phase input coil conductor and magnetic circuit; Being connected copper bar by first between A phase input coil conductor and the A phase output winding conductor connects, be connected copper bar by second between B phase input coil conductor and the B phase output winding conductor and connect, be connected the copper bar connection by the 3rd between C phase input coil conductor and the C phase output winding conductor; Described A phase output winding conductor, B phase output winding conductor and C output winding conductor mutually are electrically connected.
2. multichannel equalizing reactor as claimed in claim 1, it is characterized in that, be connected with an A phase input coil conductor lambda line copper bar that extends outside the shell at described A phase input coil conductor, be connected with one on the A phase output winding conductor and extend the outer A phase output winding conductor outlet copper bar of shell, be connected with one on the B phase input coil conductor and extend the outer B phase input coil conductor lambda line copper bar of shell, be connected with one on the B phase output winding conductor and extend the outer B phase output winding conductor outlet copper bar of shell, be connected with one on the C phase input coil conductor and extend the outer C phase input coil conductor lambda line copper bar of shell, be connected with one on the C phase output winding conductor and extend the outer C phase output winding conductor outlet copper bar of shell, A, B, C phase output winding conductor outlet copper bar is electrically connected by total outlet copper bar.
3. big multichannel equalizing reactor as claimed in claim 2, it is characterized in that described iron core and the A that is positioned at described shell be the input coil conductor mutually, A phase output winding conductor, B phase input coil conductor, B phase output winding conductor, C phase input coil conductor, C phase output winding conductor and first, two, three A that connect copper bars and partly be positioned at shell are input coil conductor lambda line copper bar mutually, A phase output winding conductor outlet copper bar, B phase input coil conductor lambda line copper bar, B phase output winding conductor outlet copper bar, C phase input coil conductor lambda line copper bar, C phase output winding conductor outlet copper bar adopts fluid sealant to be potted in the described shell and reserves a plurality of thermal holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100527424A CN103268812A (en) | 2013-02-19 | 2013-02-19 | Multichannel equalizing reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100527424A CN103268812A (en) | 2013-02-19 | 2013-02-19 | Multichannel equalizing reactor |
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| CN103268812A true CN103268812A (en) | 2013-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137197A (en) * | 2015-08-27 | 2015-12-09 | 株洲南车时代电气股份有限公司 | Method of determining current sharing reactor value in current converter composed of multiple power modules in parallel connection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA002171B1 (en) * | 1997-02-03 | 2002-02-28 | Абб Аб | A winding in an electric machine with stationary parts |
| CN102682980A (en) * | 2012-03-06 | 2012-09-19 | 特变电工新疆新能源股份有限公司 | Integrated inductor, parallel current-equalizing circuit and inverter with parallel current-equalizing circuit |
| CN202601365U (en) * | 2012-05-30 | 2012-12-12 | 合肥博微田村电气有限公司 | Current-sharing electric reactor |
| CN203103090U (en) * | 2013-02-19 | 2013-07-31 | 上海兆启新能源科技有限公司 | Multi-path equalizing reactor |
-
2013
- 2013-02-19 CN CN2013100527424A patent/CN103268812A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA002171B1 (en) * | 1997-02-03 | 2002-02-28 | Абб Аб | A winding in an electric machine with stationary parts |
| CN102682980A (en) * | 2012-03-06 | 2012-09-19 | 特变电工新疆新能源股份有限公司 | Integrated inductor, parallel current-equalizing circuit and inverter with parallel current-equalizing circuit |
| CN202601365U (en) * | 2012-05-30 | 2012-12-12 | 合肥博微田村电气有限公司 | Current-sharing electric reactor |
| CN203103090U (en) * | 2013-02-19 | 2013-07-31 | 上海兆启新能源科技有限公司 | Multi-path equalizing reactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137197A (en) * | 2015-08-27 | 2015-12-09 | 株洲南车时代电气股份有限公司 | Method of determining current sharing reactor value in current converter composed of multiple power modules in parallel connection |
| CN105137197B (en) * | 2015-08-27 | 2018-01-09 | 株洲南车时代电气股份有限公司 | The determination method of equalizing reactor value in the transverter of more power module parallels |
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Application publication date: 20130828 |