CN105513760A - Three phrase unequal-cross section three-core column half-turn electric reactor and manufacturing method for same - Google Patents
Three phrase unequal-cross section three-core column half-turn electric reactor and manufacturing method for same Download PDFInfo
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- CN105513760A CN105513760A CN201510580949.8A CN201510580949A CN105513760A CN 105513760 A CN105513760 A CN 105513760A CN 201510580949 A CN201510580949 A CN 201510580949A CN 105513760 A CN105513760 A CN 105513760A
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Abstract
The invention provides a three phrase unequal-cross section three-core column half-turn electric reactor and a manufacturing method for the same. The three phrase unequal-cross section three-core column half-turn electric reactor comprises a A-phrase iron core column, a B-phrase iron core column, a C-phrase iron core column, two transverse yoke iron core and coils covering each phrase iron core columns, wherein each phrase iron core column is orderly connected between the two transverse yoke iron at intervals; the two transverse yoke iron cores are arranged in parallel at intervals; each phrase iron core column has silicon steel sheets arranged in a laminated way and an air gap block; coil electrical turn numbers of each phrase iron core column is N, N+0.5, N+1 in an order; and cross sections of the iron cores are orderly S1,S2 and S3. An effective cross section S1 of the A-phrase iron core column works as a benchmark, and cross sections of the B and C-phrase iron core columns can be adjusted according to electrical turn numbers of the B and C phrases; a vacancy after the adjustment is filled with an insulation plate, so magnetic flux density of the A-B-C-phrase iron core columns are the same and loss of the three phrases of iron cores are the same and the three-phrase inductance value balance degree can be guaranteed; and inductance value three-phrase imbalance degree of the three-phrase half-turn electric reactor is less than 4%.
Description
Technical field
The present invention relates to iron core reactor field, in particular a kind of three stem stem half turn reactor and manufacture methods thereof of three-phase unequal section.
Background technology
Iron core reactor is as the indispensable vitals of field of power electronics, and be widely used in the harmonics restraint of power transmission electric network, power back-off etc., it is also applied to filtering, resonance, current limliting etc. in the circuit such as electric locomotive, marine vessel, new forms of energy, UPS.
Due to complete machine structure, the mode of connection that three-phase reactor in actual use goes out after adopting advance, namely inlet wire is before coil, and outlet after coil, or on the contrary, which results in the generation of half turn reactor.The closed path of magnetic flux (or magnetic line of force) process is called magnetic circuit.When a conductor from starting point by magnetic circuit peripheral perpendicular to flow direction in time returning starting point for 360 degree, itself and the complete interlinkage of magnetic flux are a whole circle; At the end of walking around 180 degree of right opposites to starting point, itself and magnetic flux interlinkage half are then half turn.In three-phase three stem stem iron core, because iron core is heart type structure, which results in the same structure number of turns (during band half turn) and electrically the number of turns is really not identical.If center pinch is N circle, then the left side and the right stem stem number of turns are respectively N-0.5 circle, N+0.5 circle, that is in three-phase three stem stem iron core, half turn can make the electric number of turns of ABC three-phase unequal, this is that the magnetic circuit mode of three stem stems determines, the unequal maximum problem of the ABC three-phase number of turns is exactly to cause the inductance value of three-phase reactor unequal, and how many meetings that its degree of balance looks the number of turns are much overproof.
And square being directly proportional of inductance value and coil turn, such as:
If the B coil of centre is 50.5T, the AC coil about side is respectively 50,51 circles, calculates the three pole reactor unbalance factor difference 4% of its theory;
When 20.5T circle got by B coil, AC coil is then 20,21 circles, can calculate the three pole reactor unbalance factor difference 9.8% of its theory equally;
When 10.5T circle got by B coil, AC coil is then 10,11 circles, the three pole reactor unbalance factor difference 19% of its theory;
When 5.5T circle got by B coil, AC coil is then 5,6 circles, the three pole reactor unbalance factor difference 36.2% of its theory;
Standard in the industry by row, three-phase electricity sensibility reciprocal unbalance factor all requires within 4%, sometimes even requires to be less than 2%.By current method, three-phase half turn reactor is beyond one's reach and differs greatly sometimes, the three-phase reactor of current each manufacturer production in the industry, no matter be whole circle or half turn, three coils, three iron core column sectional areas are all basic the same with the air gap of each stem stem, which results in its three-phase electricity sensibility reciprocal sight line circle number of turn how much to exceed in a square ratio for its difference number of turn, this can bring very large puzzlement to complete machine.
Therefore, prior art existing defects, needs improvement badly.
Summary of the invention
The technical problem to be solved in the present invention is the defect for prior art, provides a kind of three stem stem half turn reactor and manufacture methods thereof of three-phase unequal section.
The technological means that technical solution problem of the present invention adopts is: the three stem stem half turn reactors providing a kind of three-phase unequal section, comprise A phase iron core column, B phase iron core column, C phase iron core column, two horizontal yokes and overlap as the coil in described A phase iron core column, B phase iron core column, C phase iron core column respectively, described A phase iron core column, B phase iron core column, C phase iron core column successively compartment of terrain are connected between described two horizontal yoke cores, and these two horizontal yoke core parallel interval are arranged; Described A phase iron core column, B phase iron core column, C phase iron core column include silicon steel sheet and the air gap block of stacked setting, the coil electric number of turn value of described A phase iron core column, B phase iron core column, C phase iron core column is followed successively by N, N+0.5, N+1 respectively, its original cross-sectional area respectively is S1, S2, S3, and the magnetic flux density of described A phase iron core column, B phase iron core column, C phase iron core column is identical; The lateral wall of described B phase iron core column and C phase iron core column is sticked the insulation board of corresponding thickness, and the B phase iron core column after the insulation board that makes to be sticked and the cross-sectional area of C phase iron core column equal the original cross-sectional area of described A phase iron core column.
In three stem stem half turn reactors of a kind of three-phase unequal section provided by the invention, outside described B phase iron core column, C phase iron core column, scribble the epoxy glue for the described insulation board that bonds.
In three stem stem half turn reactors of a kind of three-phase unequal section provided by the invention, these two horizontal yokes are all in rectangular-shaped.
Present invention also offers a kind of manufacture method of three stem stem half turn reactors of three-phase unequal section, comprise the following steps:
The coil electric number of turn value of a, default A phase iron core column is N, calculates the magnetic flux density Ba of described A phase iron core column, Ba=U*10000/ (4.44*f*N*S1) according to A phase iron core column original cross-sectional area S1, electrically number of turn N, terminal voltage U;
The coil electric number of turn value of b, default B phase iron core column is N+0.5, S2 is amassed according to its electric circle setting value B phase iron core column original section, make it have identical magnetic flux density with described A phase iron core column, then the original section of B phase iron core column amasss S2=U*10000/ (4.44*f* (N+0.5) * Ba);
The coil of c, default C phase iron core column should number of turn value be electrically N+1, according to its original cross-sectional area of setting S3 of its electric number of turn value, make it have identical magnetic flux density with described A phase iron core column, then the original section of C phase iron core column amasss S3=U*10000/ (4.44*f* (N+1) * Ba);
D, choose corresponding iron core column according to the cross-sectional area of each phase iron core column calculated, place each layer silicon steel sheet and air gap block;
E, be sticked insulation board on the lateral wall of described B phase iron core column and C phase iron core column, and the B phase iron core column after the described insulation board that makes to be sticked and the cross-sectional area of C phase iron core column equal the original cross-sectional area of described A phase iron core column;
F, be inserted in corresponding coil to each phase iron core column and by parallel successively respectively to described A phase iron core column, B phase iron core column and C phase iron core column and compartment of terrain is connected to two horizontal yokes, these two horizontal yoke core parallel interval are arranged respectively.
G: carry out vacuum paint dipping and baking to obtaining finished product in described step f.
Implement to there is following beneficial effect in the present invention:
The present invention, by revising the unequal defect of the electric number of turns of its three coils of half turn reactor to the adjustment of ABC tri-phase iron core post net sectional area, ensure that the magnetic flux density of three iron core column is the same thus ensure that the degree of balance of the identical and three-phase electricity sensibility reciprocal of tri-phase iron core loss.And the requirement of inductance value three-phase imbalance rate≤4% of three-phase reactor can be met.
Accompanying drawing explanation
Fig. 1 is the structural representation of three stem stem half turn reactors of three-phase unequal section in one embodiment of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the FB(flow block) of the manufacture method of three stem stem half turn reactors of three-phase unequal section in one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Simultaneously with reference to Fig. 1 and Fig. 2, the invention provides a kind of three stem stem half turn reactors of three-phase unequal section, comprise A phase iron core column 101, B phase iron core column 102, C phase iron core column 103, two horizontal yokes 300 and overlap as the coil (not shown) in described A phase iron core column 101, B phase iron core column 102, C phase iron core column 103 respectively, described A phase iron core column 101, B phase iron core column 102, C phase iron core column 103 successively compartment of terrain are connected between described two horizontal yokes 300, and these two horizontal yoke 300 parallel interval are arranged; Described A phase iron core column 101, B phase iron core column 102, C phase iron core column 103 include silicon steel sheet 400 and the air gap block 500 of stacked setting.
According to the electrical structure of three stem stem half turn reactors, described A phase iron core column 101, B phase iron core column 102, the coil electric number of turn value of C phase iron core column 103 is for be followed successively by N respectively, N+0.5, N+1, the original section of each phase iron core column is long-pending respectively is S1, S2, S3, S1 is amassed and effective cross section is amassed as benchmark with A phase iron core column 101 original section, according to B phase iron core column 102, the electric number of turn adjustment B phase iron core column 102 of C phase iron core column 103, C phase iron core column 103 cross-sectional area, make the magnetic flux density of ABC tri-phase iron core post identical thus ensure that the degree of balance of the identical and three-phase electricity sensibility reciprocal of tri-phase iron core loss.Room after adjustment uses insulation board 200 to fill, the lateral wall of described B phase iron core column 102 and described C phase iron core column 103 is sticked the insulation board 200 of corresponding thickness, and the B phase iron core column 102 after the insulation board 200 that makes to be sticked and the cross-sectional area of C phase iron core column 103 equal the original cross-sectional area of described A phase iron core column 101.
Particularly, in three stem stem half turn reactors of a kind of three-phase unequal section provided by the invention, the lateral wall of B phase iron core column 102, C phase iron core column 103 all scribbles epoxy glue, for the corresponding insulation board 200 that bonds.These two horizontal yokes 300 are all in rectangular-shaped.Certainly, it is not limited to this.
As shown in Figure 3, present invention also offers a kind of manufacture method of three stem stem half turn reactors of three-phase unequal section, comprise the following steps:
The coil electric number of turn value of a, default A phase iron core column 101 is N, the magnetic flux density Ba of described A phase iron core column 101 is calculated, Ba=U*10000/ (4.44*f*N*S1) according to the original cross-sectional area S1 of A phase iron core column 101, electrically number of turn N, terminal voltage U;
The coil electric number of turn value of b, default B phase iron core column 102 is N+0.5, S2 is amassed according to its electric its original section of circle setting value, it is made to have identical magnetic flux density B with described A phase iron core column 101, then B phase iron core column 102 original section amasss S2 and should be, S2=U*10000/ (4.44*f* (N+0.5) * Ba);
The coil of c, default C phase iron core column 103 should number of turn value be electrically N+1, according to its electric its original cross-sectional area of circle setting value S3, it is made to have identical magnetic flux density with described A phase iron core column 101, then C phase iron core column 103 sectional area should be, S3=U*10000/ (4.44*f* (N+1) * Ba);
D, choose corresponding iron core column according to the original cross-sectional area of each phase iron core column calculated, place each stacked silicon steel and air gap block;
E, be sticked insulation board 200 on the lateral wall of described B phase iron core column 102 and C phase iron core column 103, and the B phase iron core column 102 after the described insulation board 200 that makes to be sticked and the cross-sectional area of C phase iron core column 103 equal the original cross-sectional area of described A phase iron core column 101;
F, be inserted in corresponding coil to each phase iron core column and by parallel successively respectively to described A phase iron core column 101, B phase iron core column 102 and C phase iron core column 103 and compartment of terrain is connected to two horizontal yokes 300, these two horizontal yoke 300 parallel interval are arranged respectively.
G, carry out vacuum paint dipping and baking to obtaining finished product in described step f.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. three stem stem half turn reactors of a three-phase unequal section, comprise A phase iron core column, B phase iron core column, C phase iron core column, two horizontal yokes and overlap as the coil in described A phase iron core column, B phase iron core column, C phase iron core column respectively, described A phase iron core column, B phase iron core column, C phase iron core column successively compartment of terrain are connected between described two horizontal yoke cores, and these two horizontal yoke core parallel interval are arranged; Described A phase iron core column, B phase iron core column, C phase iron core column include silicon steel sheet and the air gap block of stacked setting; It is characterized in that, the coil electric number of turn value of described A phase iron core column, B phase iron core column, C phase iron core column is followed successively by N, N+0.5, N+1 respectively, its original cross-sectional area respectively is S1, S2, S3, and the magnetic flux density of described A phase iron core column, B phase iron core column, C phase iron core column is identical; The lateral wall of described B phase iron core column and C phase iron core column is sticked the insulation board of corresponding thickness, and the B phase iron core column after the insulation board that makes to be sticked and the cross-sectional area of C phase iron core column equal the original cross-sectional area of described A phase iron core column.
2. three stem stem half turn reactors of a kind of three-phase unequal section according to claim 1, is characterized in that, scribble the epoxy glue for the described insulation board that bonds outside described B phase iron core column, C phase iron core column.
3. three stem stem half turn reactors of a kind of three-phase unequal section according to claim 2, is characterized in that, these two horizontal yokes are all in rectangular-shaped.
4. a manufacture method for three stem stem half turn reactors of three-phase unequal section, is characterized in that, comprise the following steps:
The coil electric number of turn value of a, default A phase iron core column is N, calculates the magnetic flux density Ba of described A phase iron core column, Ba=U*10000/ (4.44*f*N*S1) according to A phase iron core column original cross-sectional area S1, electrically number of turn N, terminal voltage U;
The coil electric number of turn value of b, default B phase iron core column is N+0.5, S2 is amassed according to its electric circle setting value B phase iron core column original section, make it have identical magnetic flux density with described A phase iron core column, then the original section of B phase iron core column amasss S2=U*10000/ (4.44*f* (N+0.5) * Ba);
The coil of c, default C phase iron core column should number of turn value be electrically N+1, according to its original cross-sectional area of setting S3 of its electric number of turn value, make it have identical magnetic flux density with described A phase iron core column, then the original section of C phase iron core column amasss S3=U*10000/ (4.44*f* (N+1) * Ba);
D, choose corresponding iron core column according to the cross-sectional area of each phase iron core column calculated, place each layer silicon steel sheet and air gap block;
E, be sticked insulation board on the lateral wall of described B phase iron core column and C phase iron core column, and the B phase iron core column after the described insulation board that makes to be sticked and the cross-sectional area of C phase iron core column equal the original cross-sectional area of described A phase iron core column;
F, be inserted in corresponding coil to each phase iron core column and by parallel successively respectively to described A phase iron core column, B phase iron core column and C phase iron core column and compartment of terrain is connected to two horizontal yokes, these two horizontal yoke core parallel interval are arranged respectively.
G: carry out vacuum paint dipping and baking to obtaining finished product in described step f.
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| CN201510580949.8A CN105513760A (en) | 2015-09-14 | 2015-09-14 | Three phrase unequal-cross section three-core column half-turn electric reactor and manufacturing method for same |
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| CN201510580949.8A CN105513760A (en) | 2015-09-14 | 2015-09-14 | Three phrase unequal-cross section three-core column half-turn electric reactor and manufacturing method for same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597791A (en) * | 2018-02-23 | 2018-09-28 | 上海圣缑电磁设备有限公司 | Reactor and its manufacturing method |
| CN109416977A (en) * | 2016-07-22 | 2019-03-01 | 株式会社自动网络技术研究所 | Reactor |
| CN111462991A (en) * | 2020-04-17 | 2020-07-28 | 株洲市希玛特变电工有限公司 | Reactor based on column iron silicon steel sheet slotting process |
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| US4488136A (en) * | 1981-05-18 | 1984-12-11 | Westinghouse Electric Corp. | Combination transformer with common core portions |
| CN101290828A (en) * | 2007-04-17 | 2008-10-22 | 北京云电英纳超导电缆有限公司 | Iron core construction with unequal intersecting surface for working at saturated magnetization zone |
| CN102360780A (en) * | 2011-08-24 | 2012-02-22 | 苏州康开电气有限公司 | Silicon-steel sheet used for iron core |
| CN203288408U (en) * | 2013-06-25 | 2013-11-13 | 株洲南车奇宏散热技术有限公司 | Three-phase iron core electric reactor with wires coming out from two faces |
| CN204215861U (en) * | 2014-09-25 | 2015-03-18 | 上海兆启新能源科技有限公司 | A kind of three-phase three-column interphase reactor of new construction |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4488136A (en) * | 1981-05-18 | 1984-12-11 | Westinghouse Electric Corp. | Combination transformer with common core portions |
| CN101290828A (en) * | 2007-04-17 | 2008-10-22 | 北京云电英纳超导电缆有限公司 | Iron core construction with unequal intersecting surface for working at saturated magnetization zone |
| CN102360780A (en) * | 2011-08-24 | 2012-02-22 | 苏州康开电气有限公司 | Silicon-steel sheet used for iron core |
| CN203288408U (en) * | 2013-06-25 | 2013-11-13 | 株洲南车奇宏散热技术有限公司 | Three-phase iron core electric reactor with wires coming out from two faces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416977A (en) * | 2016-07-22 | 2019-03-01 | 株式会社自动网络技术研究所 | Reactor |
| CN108597791A (en) * | 2018-02-23 | 2018-09-28 | 上海圣缑电磁设备有限公司 | Reactor and its manufacturing method |
| CN111462991A (en) * | 2020-04-17 | 2020-07-28 | 株洲市希玛特变电工有限公司 | Reactor based on column iron silicon steel sheet slotting process |
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Application publication date: 20160420 |