CN1346170A - Multi-winding generator - Google Patents
Multi-winding generator Download PDFInfo
- Publication number
- CN1346170A CN1346170A CN 00116125 CN00116125A CN1346170A CN 1346170 A CN1346170 A CN 1346170A CN 00116125 CN00116125 CN 00116125 CN 00116125 A CN00116125 A CN 00116125A CN 1346170 A CN1346170 A CN 1346170A
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- winding
- phase
- generator
- voltage
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Abstract
The multi-winding power generator includes shell and three-phase stator winding and rotor placed in said shell, and is characterized by that the described stator winding is formed from at least two three-phase winding which are mutually-alternatively arranged according to a certain angle. In addition to that it can be used to send out multi-phase alternative current it also can be connected with series-connected bridge rectifier, and can be formd into multipulse rectifier power source with small ripple factor, high power factor, simple structure and low cost. Specially it is applicable to high-voltage rectification.
Description
What the present invention relates to is generator in the electric supply field.What be particularly related to is a kind of generator that is used to provide rectifier power source.
Generator is as power source extensive use in all trades and professions.At some as the railway locomotive electrical source of power, occasions such as ship power power supply, often require direct current, obtain galvanic mode at present and mostly be three phase windings at alternating current generator and connect rectifier, the anti-device of direct current and big capacity filter capacitor and constitute three-phase six pulse wave rectifier power supplys.The shortcoming of the three-phase six pulse wave rectifier power supplys that constitute by this mode be bulky, cost is high, power factor is low, the dc ripple coefficient is big, system effectiveness is low.
The objective of the invention is to overcome the above-mentioned shortcoming of prior art, a kind of multi-winding generator is provided, this multi-winding generator can be simplified its rectifying part when being used to form the pulse wave rectifier power supply, and the dc ripple coefficient of pulse wave rectifier power supply is little.
Realize the multi-winding generator of the object of the invention, comprise housing, be installed in threephase stator winding and rotor in the housing that described stator winding is made of at least two three phase windings of establishing with the electrical degree row that staggers mutually.When forming direct current pulse wave rectifier power supply, each three phase winding is connected on each ac input end of series bridge rectifier respectively, can obtain a multi-pulse rectification power supply.According to electrical principles, the number of phases of the electric current of input rectifier is many more, and the wave head number of commutating voltage is just many more.This commutating voltage can be decomposed into direct voltage Ud and ripple voltage △ V, and ripple voltage is by humorous wave component.According to harmonic wave formula h=n * p ± 1 as can be known, count p more for a long time when wave head, harmonic number h is just few more, so its ripple voltage △ V is just more little, thereby dc ripple coefficient △ V/Ud is also more little.Only just constituting stator winding with two three phase windings is example, and its dc ripple coefficient is (in the national regulation index below 0.04) only 0.036.The number of three phase windings can depend on the needs, and needing only mistake between each three phase winding has an electrical degree.
Electrical degree value between each three phase winding can be identical, also can be inequality.For making its electric property better, the electrical degree between each three phase winding can be made as 360 ° of five equilibriums.That is to say that the electrical degree between described each three phase winding can be made as 360 °/3 * N, wherein, N is the number of three phase windings.
The present invention constitutes stator winding by a plurality of three phase windings of arranging with different electrical degrees, except that can sending the many phase alternating current use, itself and series bridge rectifier joined to form the multi-pulse rectification power supply, the multi-pulse rectification power supply of being made up of this multi-winding generator is except that having the advantage that the dc ripple coefficient is little, power factor (PF) is high, still can omit direct current reactor, reduce the filter capacitor capacity, reduce the cost cost.In addition,, therefore can reduce the generator stator insulator grade, reduce its cost because each winding serial connection rectifier makes the output voltage step-down on each winding; In other words, under equal class of insulation prerequisite, the withstand voltage properties of this multi-winding generator can increase substantially, thereby this generator need to be specially adapted to the occasion of high voltage rectifier.
Below in conjunction with drawings and Examples the present invention is described in further details.But content of the present invention is not limited in this embodiment.
Fig. 1 structural representation of the present invention
Fig. 2 stator is the voltage-phase figure of one three phase winding
Fig. 3 stator is the commutating voltage oscillogram of one three phase winding
Fig. 4 stator is the voltage-phase figure of two three phase windings
Fig. 5 stator is the commutating voltage oscillogram of two three phase windings
See Fig. 1, continue to use prior art rotor 3 and stator winding are installed in housing that stator winding can be by a plurality of three phase winding A
1B
1C
1A
NB
NC
NConstitute, between each three phase winding with stagger mutually an electrical degree α, β ... θ row establishes.Wherein, current potential angle α, β, θ can be identical, also can be inequality.Each ABC three-phase can " Y " type or " △ " connection.For sake of convenience, illustrate with the stator winding that constitutes by two three phase windings below.Fig. 4 and Fig. 5 have provided its voltage-phase figure and commutating voltage oscillogram respectively.Be convenient relatively directly perceived, Fig. 2 and Fig. 3 have provided the voltage-phase figure and the commutating voltage oscillogram of original stator winding of being served as by one three phase winding respectively.That the stator winding that is made of two three phase windings obtains after connecing bridge rectifier is 12 pulsating wave rectifier power source Ud, its ripple voltage △ V
2Only be 0.036Ud.And the original stator winding that is made of one three phase winding obtains is six pulse wave rectifier power supplys, ripple voltage △ V
1Be 0.14Ud.As seen, this multi-winding generator can obtain ripple coefficient when being used for rectification
Very little multi-pulse rectification power supply.
For making its electric property better, the electrical degree between each three phase winding is advisable for 360 ° to be made as five equilibrium.That is to say that the electrical degree between described each three phase winding is made as 360 °/6 * N.Wherein, N is the number of three phase windings, in previous example, and N=2, the electrical degree between each phase winding is 360 °/6 * 2=30 °.
Claims (2)
1. a multi-winding generator comprises housing, is arranged on threephase stator winding and rotor in the housing, it is characterized in that described stator winding is made of at least two three phase windings of establishing with the electrical degree row that staggers mutually.
2. multi-winding generator as claimed in claim 1 is characterized in that the electrical degree between described each three phase winding is 360 °/6 * N, and wherein N is the number of three phase windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116125 CN1346170A (en) | 2000-09-26 | 2000-09-26 | Multi-winding generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116125 CN1346170A (en) | 2000-09-26 | 2000-09-26 | Multi-winding generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1346170A true CN1346170A (en) | 2002-04-24 |
Family
ID=4585545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00116125 Pending CN1346170A (en) | 2000-09-26 | 2000-09-26 | Multi-winding generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1346170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468923C (en) * | 2006-03-30 | 2009-03-11 | 山东大学 | A.C./D.C permanent-magnet synchronous generator |
| CN101882880A (en) * | 2010-07-02 | 2010-11-10 | 浙江大学 | Multi-generator set multi-pulse rectifying method |
| CN104113175A (en) * | 2013-04-17 | 2014-10-22 | 永济新时速电机电器有限责任公司 | Brushless synchronous generator of mining electric dump truck and mining electric dump truck |
| CN114726268A (en) * | 2022-05-20 | 2022-07-08 | 深圳市智安新能源科技有限公司 | Generator configuration method |
-
2000
- 2000-09-26 CN CN 00116125 patent/CN1346170A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468923C (en) * | 2006-03-30 | 2009-03-11 | 山东大学 | A.C./D.C permanent-magnet synchronous generator |
| CN101882880A (en) * | 2010-07-02 | 2010-11-10 | 浙江大学 | Multi-generator set multi-pulse rectifying method |
| CN101882880B (en) * | 2010-07-02 | 2012-05-02 | 浙江大学 | Multi-generator set multi-pulse rectifying method |
| CN104113175A (en) * | 2013-04-17 | 2014-10-22 | 永济新时速电机电器有限责任公司 | Brushless synchronous generator of mining electric dump truck and mining electric dump truck |
| WO2014169686A1 (en) * | 2013-04-17 | 2014-10-23 | 永济新时速电机电器有限责任公司 | Brushless synchronous generator for electric dump truck for mine, and electric dump truck for mine |
| CN104113175B (en) * | 2013-04-17 | 2016-12-28 | 永济新时速电机电器有限责任公司 | Mining electric dumper no-brush synchronous generator and mining electric dumper |
| CN114726268A (en) * | 2022-05-20 | 2022-07-08 | 深圳市智安新能源科技有限公司 | Generator configuration method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |