CN105244153A - 18-pulse self-coupling phase-shifting transformer - Google Patents
18-pulse self-coupling phase-shifting transformer Download PDFInfo
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- CN105244153A CN105244153A CN201510764777.XA CN201510764777A CN105244153A CN 105244153 A CN105244153 A CN 105244153A CN 201510764777 A CN201510764777 A CN 201510764777A CN 105244153 A CN105244153 A CN 105244153A
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Abstract
The invention discloses an 18-pulse self-coupling phase-shifting transformer. The 18-pulse self-coupling phase-shifting transformer is characterized by comprising a low-voltage three-phase alternating current incoming line, a D+20 self-coupling phase-shifting rectifier transformer and a D-20 self-coupling phase-shifting rectifier transformer, wherein the low-voltage three-phase alternating current incoming line and the D+20 self-coupling phase-shifting rectifier transformer have a difference of 20 degrees, the low-voltage three-phase alternating current incoming line and the D-20 self-coupling phase-shifting rectifier transformer have a difference of -20 degrees, and the D+20 self-coupling phase-shifting rectifier transformer and the D-20 self-coupling phase-shifting rectifier transformer are both 12-pulse self-coupling phase-shifting transformers each of which comprises a basic winding and a phase-shifting winding. According to the 18-pulse self-coupling phase-shifting transformer, the pulse number can be safely increased at a low cost without increasing the cost.
Description
Technical field
The present invention relates to the field transformer of industrial or agricultural application rectifier power source, particularly relate to a kind of 18 pulse wave self coupling phase shifting transformers.
Background technology
AC-DC conversion obtains extensive application in industrial and agricultural production, but, one of the strong nonlinearity of rectifying device and time variation major harmonic source becoming electrical network, the infringement of harmonic wave to electrical network is large, meeting damaging other electrical equipment in circuit, therefore, how effectively suppress the harmonic wave that commutation system produces, and total harmonic distortion factor (THD) is controlled be an important problem in allowed limits.
In order to improve the degree of purity of flip-flop in rectifying circuit, require to improve pulse number, pulse number is more, then the interval of the electric conduction angle of its rectifier cell is less, and flip-flop is also purer.
That suppresses commutation system to produce humorously involves that to improve pulse number be completed by phase shifting transformer, and usually use high pressure phase-shift voltage regulating transformer to add rectifier transformer, cost is high.
Therefore, a kind of 18 pulse wave self coupling phase shifting transformers are needed badly.
Summary of the invention
The object of this invention is to provide a kind of safety, low cost, on the basis not increasing cost, improve 18 pulse wave self coupling phase shifting transformers of pulse number.
To achieve these goals, technical scheme provided by the invention is: disclose a kind of 18 pulse wave self coupling phase shifting transformers, comprise: low-voltage three-phase AC electricity inlet wire, to differ the D+20 self coupling phase-shifting rectifier transformer of 20 degree with described low-voltage three-phase AC electricity inlet wire, differ-20 D-20 self coupling phase-shifting rectifier transformers of spending with the electric inlet wire of described low-voltage three-phase AC, D+20 self coupling phase-shifting rectifier transformer and D-20 self coupling phase-shifting rectifier transformer are 12 pulse wave self coupling phase shifting transformers, and above-mentioned 2 12 pulse wave self coupling phase shifting transformers include basic winding and Phase shift winding.
Described D+20 self coupling phase-shifting rectifier transformer and described D-20 self coupling phase-shifting rectifier transformer share iron core.
The U phase Phase shift winding of described D+20 self coupling phase-shifting rectifier transformer is connected with the basic winding of W phase, and V phase Phase shift winding is connected with the basic winding of U phase, and W phase Phase shift winding is connected with the basic winding of V phase.
The U phase Phase shift winding of described D-20 self coupling phase-shifting rectifier transformer is connected with the basic winding of V phase, and V phase Phase shift winding is connected with the basic winding of W phase, and W phase Phase shift winding is connected with the basic winding of U phase.
Compared with prior art, in the present invention 18 pulse wave self coupling phase shifting transformer, its electric parameter and performance:
1, nominal input voltage: input 380V/50Hz/3 phase.
2, rated output voltage: 380V*2 ± 3%.
3, unloaded input current: Io≤16.0A.
4, specified apparent power: 96kVA.
5, nominal load current: 220A*2.
6, dielectric strength: 3500V/15mA/60S.
7, insulation resistance: DC500V >=100M Ω.
8, the class of insulation: F level.
9, the highest permission temperature rise: 90 degree.
11, connection set Dd+20, Dd-20.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a D+20 self coupling phase-shifting rectifier transformer embodiment of the present invention 18 pulse wave self coupling phase shifting transformer.
Fig. 2 is the schematic diagram of a D-20 self coupling phase-shifting rectifier transformer embodiment of the present invention 18 pulse wave self coupling phase shifting transformer.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, element numbers similar in accompanying drawing represents similar element.As mentioned above, as shown in Fig. 1 and 2, a kind of 18 pulse wave self coupling phase shifting transformers disclosed in the embodiment of the present invention comprise inlet wire electric with low-voltage three-phase AC and respectively differ 20 degree (one positive 20 degree, one negative 20 degree) 2 12 pulse wave self coupling phase-shifting rectifier transformers, D+20 self coupling phase-shifting rectifier transformer 1, D-20 self coupling phase-shifting rectifier transformer 2, each transformer comprises basic winding 3, Phase shift winding 4.Embodiment as shown in Fig. 1 and 2 can differ 20 degree (one positive 20 degree by two groups with low-voltage three-phase AC electricity inlet wire dexterously, one negative 20 degree) 12 pulse wave self coupling phase-shifting rectifier transformers and inlet wire form 18 pulse wave self coupling phase-shifting rectifier transformers, pulse number is improved on the basis not increasing cost.
In an embodiment, D+20 self coupling phase-shifting rectifier transformer and D-20 self coupling phase-shifting rectifier transformer share iron core.Therefore, it is possible to effectively reduce costs.
In embodiment as shown in Figure 1, the U phase Phase shift winding 4 of D+20 self coupling phase-shifting rectifier transformer 1 is connected with the basic winding 3 of W phase, and V phase Phase shift winding 4 is connected with the basic winding 3 of U phase, and W phase Phase shift winding 4 is connected with the basic winding 3 of V phase.
As shown in Figure 2 in embodiment, the U phase Phase shift winding 4 of D-20 self coupling phase-shifting rectifier transformer 2 is connected with the basic winding 3 of V phase, and V phase Phase shift winding 4 is connected with the basic winding 3 of W phase, and W phase Phase shift winding 4 is connected with the basic winding 3 of U phase.
It should be noted that, D+20 self coupling phase-shifting rectifier transformer of the present invention and D-20 self coupling phase-shifting rectifier transformer are connected in parallel.And also identify the inlet wire of each rectifier transformer and the color of outlet at Fig. 1 and Fig. 2.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (4)
1. a pulse wave self coupling phase shifting transformer, it is characterized in that, comprise: low-voltage three-phase AC electricity inlet wire, to differ the D+20 self coupling phase-shifting rectifier transformer of 20 degree with described low-voltage three-phase AC electricity inlet wire, differ-20 D-20 self coupling phase-shifting rectifier transformers of spending with the electric inlet wire of described low-voltage three-phase AC, D+20 self coupling phase-shifting rectifier transformer and D-20 self coupling phase-shifting rectifier transformer are 12 pulse wave self coupling phase shifting transformers, and above-mentioned 2 12 pulse wave self coupling phase shifting transformers include basic winding and Phase shift winding.
2. 18 pulse wave self coupling phase shifting transformers as claimed in claim 1, is characterized in that, described D+20 self coupling phase-shifting rectifier transformer and described D-20 self coupling phase-shifting rectifier transformer share iron core.
3. 18 pulse wave self coupling phase shifting transformers as claimed in claim 1 or 2, it is characterized in that, the U phase Phase shift winding of described D+20 self coupling phase-shifting rectifier transformer is connected with the basic winding of W phase, and V phase Phase shift winding is connected with the basic winding of U phase, and W phase Phase shift winding is connected with the basic winding of V phase.
4. 18 pulse wave self coupling phase shifting transformers as claimed in claim 1 or 2, it is characterized in that, the U phase Phase shift winding of described D-20 self coupling phase-shifting rectifier transformer is connected with the basic winding of V phase, and V phase Phase shift winding is connected with the basic winding of W phase, and W phase Phase shift winding is connected with the basic winding of U phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764777.XA CN105244153A (en) | 2015-11-10 | 2015-11-10 | 18-pulse self-coupling phase-shifting transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764777.XA CN105244153A (en) | 2015-11-10 | 2015-11-10 | 18-pulse self-coupling phase-shifting transformer |
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| CN105244153A true CN105244153A (en) | 2016-01-13 |
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| CN201510764777.XA Pending CN105244153A (en) | 2015-11-10 | 2015-11-10 | 18-pulse self-coupling phase-shifting transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783046A (en) * | 2017-01-20 | 2017-05-31 | 陕西长岭迈腾电子有限公司 | The pulse wave rectifier transformer of dual input autocoupling type 18 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201048075Y (en) * | 2007-06-13 | 2008-04-16 | 常州特种变压器有限公司 | 18 pulse wave commutator transformer |
| CN101651021A (en) * | 2009-08-05 | 2010-02-17 | 济南志亨特种变压器有限公司 | Double pulse combined type transformer |
| CN201966814U (en) * | 2010-12-01 | 2011-09-07 | 四川英杰电气股份有限公司 | Rectifying power supply |
| CN102231602A (en) * | 2011-06-29 | 2011-11-02 | 四川英杰电气股份有限公司 | Multi-impulse power supply circuit and circuit method |
| CN102624258A (en) * | 2012-04-20 | 2012-08-01 | 广东易事特电源股份有限公司 | Non-isolated symmetric self-coupling 18-pulse rectification power supply system |
| US20130272040A1 (en) * | 2012-04-17 | 2013-10-17 | Frank Z. Feng | Dual-input 18-pulse autotransformer rectifier unit for an aircraft ac-dc converter |
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2015
- 2015-11-10 CN CN201510764777.XA patent/CN105244153A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201048075Y (en) * | 2007-06-13 | 2008-04-16 | 常州特种变压器有限公司 | 18 pulse wave commutator transformer |
| CN101651021A (en) * | 2009-08-05 | 2010-02-17 | 济南志亨特种变压器有限公司 | Double pulse combined type transformer |
| CN201966814U (en) * | 2010-12-01 | 2011-09-07 | 四川英杰电气股份有限公司 | Rectifying power supply |
| CN102231602A (en) * | 2011-06-29 | 2011-11-02 | 四川英杰电气股份有限公司 | Multi-impulse power supply circuit and circuit method |
| US20130272040A1 (en) * | 2012-04-17 | 2013-10-17 | Frank Z. Feng | Dual-input 18-pulse autotransformer rectifier unit for an aircraft ac-dc converter |
| CN102624258A (en) * | 2012-04-20 | 2012-08-01 | 广东易事特电源股份有限公司 | Non-isolated symmetric self-coupling 18-pulse rectification power supply system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783046A (en) * | 2017-01-20 | 2017-05-31 | 陕西长岭迈腾电子有限公司 | The pulse wave rectifier transformer of dual input autocoupling type 18 |
| CN106783046B (en) * | 2017-01-20 | 2019-01-08 | 陕西长岭迈腾电子有限公司 | 18 pulse wave rectifier transformer of dual input autocoupling type |
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Application publication date: 20160113 |