CN103295748A - Coil of compound voltage compensation autotransformer - Google Patents
Coil of compound voltage compensation autotransformer Download PDFInfo
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- CN103295748A CN103295748A CN2013102163314A CN201310216331A CN103295748A CN 103295748 A CN103295748 A CN 103295748A CN 2013102163314 A CN2013102163314 A CN 2013102163314A CN 201310216331 A CN201310216331 A CN 201310216331A CN 103295748 A CN103295748 A CN 103295748A
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Abstract
The invention discloses a coil of a compound voltage compensation autotransformer. The autotransformer comprises an A-phase coil, a B-phase coil and a C-phase coil which are connected with three-phase alternating current respectively, multiple primary taps, multiple secondary taps and multiple neutral zero taps are arranged at same positions of the three coils, one group of primary taps in the three coils is connected with an input alternating power supply, one group of secondary taps in the three coils is connected with an output line, and one group of neutral zero taps in the three coils are connected with one other. The coils are made of polyimide enamelled round copper wires, and a silicon steel core is arranged in each coil. The coil of the autotransformer is provided with the primary taps, the secondary taps and the neutral zero taps, non-polar voltage regulating output of voltage can be obtained by different combinations, and voltage regulating range is widened while voltage regulating precision is improved; the coil can be used as voltage rising or voltage dropping equipment by adopting different connection modes.
Description
Technical field
The present invention relates to a kind of coil of transformer, be specifically related to a kind of coil of compound voltage compensation autotransformer.
Background technology
Autotransformer is the transformer that has only a winding, when using as step-down transformer, extracts a part of wire turn out as secondary winding from winding; When using as step-up transformer, applied voltage only is added on a part of wire turn of winding.Because autotransformer has more use advantage,, loss low as the few cost of consumable material lacked high efficiency, is convenient to transport and install, have higher advantages such as limit manufacturing capacity, therefore along with the raising of power system development, electric pressure and the increase of transmission capacity, autotransformer is big owing to its capacity, loss is little, cost is low is used widely.
Autotransformer is compared with the general transformer with capacity, has advantages such as simple in structure, that materials are economized, volume is little.Especially seem economical especially in transformation ratio close to 1 occasion, so use morely in the close high-power transmitting transformer of voltage, this is external to be used widely in the asynchronous motor reduced voltage starter more than 10 kilowatts.Autotransformer has application in the occasion that does not need primary and secondary isolation, and the transformer in common AC voltage regulator, the household small-size AC voltage regulator, the transformer in the three phase electric machine self-decoupling decompressioning starting box etc. all are the practical applications of autotransformer.
But the transformation ratio of the autotransformer of extensive use is at present fixed, and perhaps has 2 or 3 transformation ratios, thereby makes the range of regulation of autotransformer be restricted, and can not satisfy under the different occasions application demand more widely.And if realize pressure regulation by the mode at high pressure and medium-voltage line installing adapter transformer, then not only increased equipment cost, the energy consumption when yet having increased simultaneously the equipment operation does not have promotional value widely.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, and a kind of continuous voltage regulating of realizing of tap combination that can be by changing autotransformer is provided, and can realize boosting and the coil of the compound voltage compensation autotransformer of step-down.
For addressing the above problem, the present invention adopts technical scheme to be:
A kind of coil of compound voltage compensation autotransformer, this autotransformer is provided with A phase coil, B phase coil and the C phase coil that is connected with three-phase alternating current respectively, in order to realize the adjusting for output voltage, described coil is provided with a plurality of taps and a plurality of secondary tap, and also is provided with a plurality of neutral taps at zero point on the described coil.
The present invention is in order to realize the stable pressure regulation for three-phase alternating current, preferable technical scheme has, a plurality of taps in described A phase coil, B phase coil and the C phase coil, a plurality of secondary tap and a plurality of neutral tap at zero point are arranged at the same position of three coils respectively, and described coil has the identical number of turn.
The present invention is in order to realize the pressure regulation output for the high-voltage alternating electric current, preferable technical scheme also has, one group of tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with the input alternating source respectively, and one group of secondary tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with outlet line respectively.
The present invention is in order to realize the adjusting for input voltage and output voltage ratio, and preferable technical scheme also has, and one group of neutral tap at zero point of the same position in described A phase coil, B phase coil and the C phase coil is connected to each other.
The present invention is in order to realize the step-down output for input ac power, preferable technical scheme also has, a described a plurality of tap setting is in the top of coil, and described a plurality of secondary tap setting are in the middle part of coil, and described neutrality tap setting at zero point is in the bottom of coil.
The present invention is in order to realize the stepless pressure regulation output for input voltage, be convenient to calculate and arrange the ratio of input voltage and output voltage, preferable technical scheme also has, a described a plurality of tap even or non-homogeneous setting on coil top, described a plurality of secondary tap even or non-homogeneous setting in the middle part of coil, described a plurality of neutral taps at zero point even or non-homogeneous setting in the coil bottom.
The present invention is in order to realize the output of boosting for the input alternating source, preferable technical scheme also has, one group of secondary tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with the input alternating source respectively, and one group of tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with outlet line respectively.
The present invention reduces the energy loss in the coil pressure regulation process in order to improve electromagnetic conversion efficient, and preferable technical scheme also has, and described coil inside is provided with the cylindrical silicon steel core.
Electric conductivity and the insulation property of the present invention in order to improve coil prevent that coil from the danger of electric leakage taking place, and preferable technical scheme also has, and described coil is formed by the coiling of polyimides enamel insulated round copper wire.
Insulation property and the fail safe of the present invention in order to improve transformer, the radiating efficiency of enhancing transformer, preferable technical scheme also has, and the outside of described coil is enclosed with the thick polyester film of 100 μ m for heat conductive insulating.
Pressure regulation design principle of the present invention is: under the constant situation of input voltage, can be by a different tap of combination, secondary tap, neutral tap at zero point, conveniently obtain different output voltages, according to the quantity that tap is set, outlet side just can obtain desirable level time variant voltage, tap number is more many, and the voltage that outlet side obtains is more meticulous.
The concrete mode of pressure regulation is:
Wherein, An, Bn, Cn represent n tap in A phase coil, B phase coil and the C phase coil respectively; An, bn, cn represent n secondary tap in A phase coil, B phase coil and the C phase coil respectively; Xn, yn, zn represent the neutral tap at zero point of n in A phase coil, B phase coil and the C phase coil respectively.
When neutral zero point get x1, y1, z1 group, if when 1 side joint A1, B1, the tap of C1 group, then can obtain voltage U 1-1-1 2 side a1, b1, the taps of c1 group, obtain voltage U 1-1-2 in a2, b2, the tap of c2 group, obtain voltage U 1-1-n in an, bn, the tap of cn group.
When neutral zero point get x1, y1, z1 group, if when 1 side joint A2, B2, the tap of C2 group, then can obtain voltage U 2-1-1 2 side a1, b1, the taps of c1 group, obtain voltage U 2-1-2 in a2, b2, the tap of c2 group, obtain voltage U 2-1-n in an, bn, the tap of cn group.
When neutral zero point get x1, y1, z1 group, if when 1 side joint An, Bn, the tap of Cn group, then can obtain voltage U n-1-1 2 side a1, b1, the taps of c1 group, obtain voltage U n-1-2 in a2, b2, the tap of c2 group, obtain voltage U n-1-n in an, bn, the tap of cn group.
When neutral zero point get x2, y2, z2 group, if when 1 side joint A1, B1, the tap of C1 group, then can obtain voltage U 1-2-1 2 side a1, b1, the taps of c1 group, obtain voltage U 1-2-2 in a2, b2, the tap of c2 group, obtain voltage U 1-2-n in an, bn, the tap of cn group.
When neutral zero point get x2, y2, z2 group, if when 1 side joint A2, B2, the tap of C2 group, then can obtain voltage U 2-2-1 2 side a1, b1, the taps of c1 group, obtain voltage U 2-2-2 in a2, b2, the tap of c2 group, obtain voltage U 2-2-n in an, bn, the tap of cn group.
When neutral zero point get x2, y2, z2 group, if when 1 side joint An, Bn, the tap of Cn group, then can obtain voltage U n-2-1 2 side a1, b1, the taps of c1 group, obtain voltage U n-2-2 in a2, b2, the tap of c2 group, obtain voltage U n-2-n in an, bn, the tap of cn group.
When neutral zero point get xn, yn, zn group, if when 1 side joint A1, B1, the tap of C1 group, then can obtain voltage U 1-n-1 2 side a1, b1, the taps of c1 group, obtain voltage U 1-n-2 in a2, b2, the tap of c2 group, obtain voltage U 1-n-n in an, bn, the tap of cn group.
When neutral zero point get xn, yn, zn group, if when 1 side joint A2, B2, the tap of C2 group, then can obtain voltage U 2-n-1 2 side a1, b1, the taps of c1 group, obtain voltage U 2-n-2 in a2, b2, the tap of c2 group, obtain voltage U 2-n-n in an, bn, the tap of cn group.
When neutral zero point get xn, yn, zn group, if when 1 side joint An, Bn, the tap of Cn group, then can obtain voltage U n-n-1 2 side a1, b1, the taps of c1 group, obtain voltage U n-n-2 in a2, b2, the tap of c2 group, obtain voltage U n-n-n in an, bn, the tap of cn group.
The voltage of 2 sides that obtain is followed successively by from big to small:
U1-1-1＞U1-1-2＞U1-1-n，U2-1-1＞U2-1-2＞U2-1-n，
Un-1-1＞Un-1-2＞Un-1-n；
U1-2-1＞U1-2-2＞U1-2-n，U2-2-1＞U2-2-2＞U2-2-n，
Un-2-1＞Un-2-2＞Un-2-n；
U1-n-1＞U1-n-2＞U1-n-n，U2-n-1＞U2-n-2＞U2-n-n，
Un-n-1＞Un-n-2＞Un-n-n。
If establishing transformer input side voltage is Ui, outlet side voltage is Uo, and the neutral point no-load voltage ratio is K, and the tap no-load voltage ratio is k, and neutral point no-load voltage ratio K is: select fixing primary side and the tap of secondary side, K equals the ratio of secondary side voltage and primary side voltage; Tap no-load voltage ratio k is: when neutral point fixedly the time, k equals the ratio of secondary side voltage and primary side voltage; Data by the top can get:
If during n=1, then can get 1 group of output voltage, i.e. Uo=K*k*Ui,
If during n=2, then can get 2*2*2=2
3=8 groups of output voltages, i.e. Uo
1=K
1* k
1* Ui
1, Uo
2=K
1* k
1* Ui
2, Uo
3=K
2* k
1* Ui
1, Uo
4=K
2* k
1* Ui
2, Uo
5=K
1* k
2* Ui
1, Uo
6=K
1* k
2* Ui
2, Uo
7=K
2* k
2* Ui
1, Uo
8=K
2* k
2* Ui
2, if K, k arrange rationally, then the difference of every step voltage is Ui/8.
In like manner can get, during as if n=n, then can get n*n* ... * n=n
nThe group combination namely can obtain n
3The group output voltage can think to arrange infinite many group voltage rationally that as if K, k then the difference of every step voltage is Ui/n
n, namely the difference infinitesimal of step voltage can obtain continuous output voltage like this, can realize stepless voltage regulation.
Advantage of the present invention and beneficial effect are:
(1) coil of autotransformer of the present invention, be provided with a tap of many groups, organize secondary tap and the neutral tap at zero point of many groups more, adopt different combinations can realize exporting for the stepless pressure regulation of voltage, increased range of regulation and the precision of transformer greatly.
(2) the secondary tap among the present invention also can be used as power input, at tap side output booster voltage, adopts different connected modes can be used as to boost or the equipment use of step-down.
The group number of (a 3) tap among the present invention, secondary tap and neutral tap at zero point is more many, and precision that can regulation voltage is just more big, can realize stepless pressure regulation when the tap group number is abundant.
(4) the present invention can adopt the input voltage and output voltage ratio that the incompatible realization of different tap group is determined, convenient calculating and operation.
Description of drawings
Fig. 1 is the structure chart of the compound voltage compensation autotransformer coil of the present invention.
Among the figure: 1, A phase coil; 2, the neutral tap at zero point of A phase coil; 3, silicon steel core; 4, the A phase coil tap; 5, the neutral tap at zero point of B phase coil; 6, the B phase coil tap; 7, the neutral tap at zero point of C phase coil; 8, the C phase coil tap; 9, the secondary tap of C phase coil; 10, C phase coil; 11, the secondary tap of B phase coil; 12, B phase coil; 13, the secondary tap of A phase coil.
Embodiment
The following example will further specify particular content of the present invention.
It is a kind of coil of compound voltage compensation autotransformer that the present invention adopts technical scheme, this autotransformer is provided with A phase coil 1, B phase coil 12 and the C phase coil 10 that is connected with three-phase alternating current respectively, in order to realize the adjusting for output voltage, coil is provided with 20 groups of taps, i.e. a tap 8 of a tap 6 of the A phase coil tap 4, B phase coil and C phase coil respectively has 20 taps; Also be provided with 20 groups of secondary taps on the coil, i.e. the secondary tap 9 of the secondary tap 11 of the secondary tap 13 of A phase coil, B phase coil and C phase coil respectively has 20 taps; Also be provided with 20 groups of neutral taps at zero point on the coil, i.e. the neutral tap at zero point 7 of the neutral tap at zero point 5 of the neutral tap at zero point 2 of A phase coil, B phase coil and C phase coil respectively has 20 taps; 20 taps in A phase coil 1, B phase coil 12 and the C phase coil 10,20 secondary taps and 20 neutral taps at zero point are arranged at the same position of three coils respectively, and three coils have the identical number of turn; One group of tap in A phase coil 1, B phase coil 12 and the C phase coil 10 is connected with the input alternating source respectively, and one group of secondary tap in A phase coil 1, B phase coil 12 and the C phase coil 10 is connected with outlet line respectively.
On the basis of embodiment 1, the present invention is in order to realize the pressure regulation output for the high-voltage alternating electric current, preferred implementation also has, A phase coil 1, be respectively arranged with 8 taps in B phase coil 12 and the C phase coil 10,8 secondary taps and 8 neutral taps at zero point, A phase coil 1, one group of tap in B phase coil 12 and the C phase coil 10 is connected with the input alternating source respectively, A phase coil 1, B phase coil 12 is connected with outlet line respectively with one group of secondary tap in the C phase coil 10, A phase coil 1, one group of neutral tap at zero point in B phase coil 12 and the C phase coil 10 is connected to each other, and other parts and embodiment 1 are identical.
On the basis of embodiment 2, the present invention is in order to realize the step-down output for input ac power, and can realize stepless pressure regulation, be convenient to calculate and arrange the ratio of input voltage and output voltage, preferred implementation also has, A phase coil 1, be respectively arranged with 40 taps in B phase coil 12 and the C phase coil 10,40 secondary taps and 40 neutral taps at zero point, A phase coil 1, a tap in B phase coil 12 and the C phase coil 10 evenly is arranged at the top of coil, A phase coil 1, secondary tap in B phase coil 12 and the C phase coil 10 evenly is arranged at the middle part of coil, A phase coil 1, neutral tap at zero point in B phase coil 12 and the C phase coil 10 evenly is arranged at the bottom of coil, and other parts and embodiment 2 are identical.
On the basis of embodiment 3, the present invention is in order to realize the output of boosting for the input alternating source, and can realize stepless pressure regulation, preferred implementation also has, and is respectively arranged with 70 taps, 70 secondary taps and 70 neutral taps at zero point in A phase coil 1, B phase coil 12 and the C phase coil 10; The non-homogeneous top that is arranged at coil of a tap in A phase coil 1, B phase coil 12 and the C phase coil 10, the non-homogeneous middle part that is arranged at coil of secondary tap in A phase coil 1, B phase coil 12 and the C phase coil 10, the non-homogeneous bottom that is arranged at coil of neutral tap at zero point in A phase coil 1, B phase coil 12 and the C phase coil 10; One group of secondary tap is connected with low pressure input alternating source respectively in A phase coil 1, B phase coil 12 and the C phase coil 10, one group of tap in A phase coil 1, B phase coil 12 and the C phase coil 10 is connected with the high-voltage output line road respectively, and other parts and embodiment 3 are identical.
On the basis of embodiment 4, the present invention reaches good safety performance in order to make transformer, reduce the loss of energy in the pressure regulation process, improve the effect of stepless pressure regulation, preferred implementation also has, and is respectively arranged with 100 taps, 100 secondary taps and 80 neutral taps at zero point in A phase coil 1, B phase coil 12 and the C phase coil 10; Coil inside is provided with cylindrical silicon steel core 3, and coil is formed by the coiling of polyimides enamel insulated round copper wire, and the outside of coil is enclosed with the thick polyester film of 100 μ m for heat conductive insulating, and other parts and embodiment 4 are identical.
It should be noted that at last: obviously, above-described embodiment only is for example of the present invention clearly is described, and is not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And the apparent variation of being amplified out thus or change still are among protection scope of the present invention.
Claims (10)
1. the coil of a compound voltage compensation autotransformer, it is characterized in that, this autotransformer is provided with A phase coil, B phase coil and the C phase coil that is connected with three-phase alternating current respectively, is respectively equipped with a plurality of taps, a plurality of secondary tap and a plurality of neutral tap at zero point on above-mentioned three coils.
2. the coil of compound voltage compensation autotransformer as claimed in claim 1, it is characterized in that, described A phase coil, B phase coil and C phase coil have the identical number of turn, and a tap in three coils, secondary tap and neutral tap at zero point are arranged at the same position of three coils respectively.
3. the coil of compound voltage compensation autotransformer as claimed in claim 2, it is characterized in that, one group of tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with the input alternating source respectively, and one group of secondary tap of same position is connected with outlet line respectively in described A phase coil, B phase coil and the C phase coil.
4. the coil of compound voltage compensation autotransformer as claimed in claim 3 is characterized in that, one group of neutral tap at zero point of the same position in described A phase coil, B phase coil and the C phase coil is connected to each other.
5. the coil of compound voltage compensation autotransformer as claimed in claim 4, it is characterized in that, a tap is arranged at the top of three coils respectively, and the secondary tap is arranged at the middle part of three coils respectively, and neutral tap at zero point is arranged at the bottom of three coils respectively.
6. the coil of compound voltage compensation autotransformer as claimed in claim 5, it is characterized in that, a described a plurality of tap even or non-homogeneous setting on coil top, described a plurality of secondary tap even or non-homogeneous setting in the middle part of coil, described a plurality of neutral taps at zero point even or non-homogeneous setting in the coil bottom.
7. the coil of compound voltage compensation autotransformer as claimed in claim 2, it is characterized in that, one group of secondary tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with low pressure input alternating source respectively, and one group of tap of the same position in described A phase coil, B phase coil and the C phase coil is connected with the high-voltage output line road respectively.
8. as the coil of the arbitrary described compound voltage compensation autotransformer of claim 1-7, it is characterized in that described coil inside is provided with the cylindrical silicon steel core.
9. the coil of compound voltage compensation autotransformer as claimed in claim 8 is characterized in that, described coil is formed by the coiling of polyimides enamel insulated round copper wire.
10. the coil of compound voltage compensation autotransformer as claimed in claim 9 is characterized in that, the outside of described coil is enclosed with the thick polyester film of 100 μ m for heat conductive insulating.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072669A (en) * | 2020-09-11 | 2020-12-11 | 西安交通大学 | Variable ratio voltage regulation and current compensation autotransformer and method |
| CN113035538A (en) * | 2021-03-22 | 2021-06-25 | 赵忠臣 | Static voltage regulator |
| CN115276423A (en) * | 2022-09-29 | 2022-11-01 | 三尔梯(泉州)电气制造有限公司 | Bipolar regulator and distribution alternating current voltage stabilizing device |
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| CN102647091A (en) * | 2012-04-19 | 2012-08-22 | 北京厚优节电技术有限公司 | Voltage stabilizing device for low voltage side of alternating-current power transmission and transformation and voltage stabilizing control method thereof |
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| CN112072669A (en) * | 2020-09-11 | 2020-12-11 | 西安交通大学 | Variable ratio voltage regulation and current compensation autotransformer and method |
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| CN113035538A (en) * | 2021-03-22 | 2021-06-25 | 赵忠臣 | Static voltage regulator |
| CN113035538B (en) * | 2021-03-22 | 2023-10-20 | 赵忠臣 | Static voltage regulator |
| CN115276423A (en) * | 2022-09-29 | 2022-11-01 | 三尔梯(泉州)电气制造有限公司 | Bipolar regulator and distribution alternating current voltage stabilizing device |
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Effective date of registration: 20141029 Address after: 338000 Guangming Road, Gaoxin District, Jiangxi, Xinyu, China, 888 Applicant after: Green is the Jiangxi new energy science and technology limited company Address before: 030006, 12 Changfeng street, Xiaodian District, Shanxi, Taiyuan (New Era Nanjing Hotel hospital) Applicant before: Tian Anzhen |
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Application publication date: 20130911 |