CN201075802Y - Self-exciter multiphase exciting device - Google Patents
Self-exciter multiphase exciting device Download PDFInfo
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- CN201075802Y CN201075802Y CNU2007202006879U CN200720200687U CN201075802Y CN 201075802 Y CN201075802 Y CN 201075802Y CN U2007202006879 U CNU2007202006879 U CN U2007202006879U CN 200720200687 U CN200720200687 U CN 200720200687U CN 201075802 Y CN201075802 Y CN 201075802Y
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- winding
- self
- excitation
- multiphase
- generator
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Abstract
The utility model relates to a multiphase exciting device used on a self exciter. The utility model is characterized in that: a motor main winding is designed to a concentric type single and two-layer winding with low harmonic magnetic potential; the fundamental wave winding coefficient is high, a fifth-harmonic and a seventh-harmonic are greatly weakened or eliminated, thus the generating efficiency is high, and the sine performance of the voltage is good. The self exciting multiphase exciting device overcomes the interference phenomenon that excitation source is fed from the motor end or a fundamental-wave additional-winding power supply, and is a self-excitation device which has no interference to an output power supply.
Description
Technical field
The utility model relates to a kind of self-exciter excitation unit, particularly a kind of self-excitation generator multiphase excitation device.
Background technology
Self-exciter excitation unit in the past, its excitation source draw the output of spontaneous motor or take from the auxiliary winding of the additional first-harmonic of generator.Such excitation source is when regulating exciting current with electronic voltage controller, and the power supply of generator output often is interfered.Output voltage waveforms can produce burr, depression, fracture etc. and make the wave distortion phenomenon, when serious electronic load can't be worked.For this reason, seek a kind of excitation source of glitch-free self-exciter, just can change above-mentioned defective.
Summary of the invention
The purpose of this utility model provides a kind of self-excitation generator multiphase excitation device, can not form interference phenomenon between the out-put supply of this device excitation source and generator.Can charged subclass nonlinear load, be used for post and telecommunications, communication, UPS, Switching Power Supply, radar etc., functional.
The utility model is achieved like this, in three-phase synchronous generator, the generator main design of Windings becomes three symmetrical single, double layer winding.And in the single layer winding groove, arrange multi-phase excitation source winding, opposite with multi-phase excitation source size of current equal direction in the groove, main winding is not constituted electromagnetic interference, multi-phase excitation source winding is supplied with the excitation winding direct current by rectifier bridge output DC potential source, galvanic size is by sealing in wherein voltage regulator control, stable generator output voltage.This layout can make armature winding coefficient height, so the generating efficiency height.And 5,7 subharmonic content are little, when the generator star connection was exported, was the sinusoidal aberration rate of voltage waveform less than 3%, and had two kinds to wait the circle windings in the individual layer groove under, formation 2n (n=1,2,3? .) phase, promptly 2,4,6 ... equate heterogeneous and rectification excitation unit.This excitation source winding alternating current forms instantaneous back-emf in the output winding, equal and opposite in direction and phase place is opposite, so itself and be zero, so do not produce interference, thereby reach the purpose of invention.
The utility model has the advantages that: can not form interference phenomenon between the out-put supply of excitation source and generator, can charged subclass nonlinear load, be used for post and telecommunications, communication, radar etc., functional.
Description of drawings
The stator winding that Fig. 1 encourages oneself and generates electricity for the utility model is a kind of.
Fig. 2 is a two-phase self-excitation device layout plan of the present utility model.
Embodiment
As shown in Figure 1, expanded view number of stator slots Z=24, the number of poles 2P=2 utmost point, number of phases m=3 phase.Wherein, U, V, W, N are three-phase four-wire system output armature winding, are a kind of concentric type list two layer winding, coil spread 1-12 is an individual layer, and coil spread 2-11 is double-deck, and the individual layer number of turn is 1.73 times of the double-deck number of turn, make fundamental wave winding coefficient reach 0.92, and 5,7 subharmonic are zero substantially.Form low harmonic magnetic potential winding like this.Star output has good sinusoidal voltage waveform.Wherein 24,1,4,5,8,9,12,13, totally 12 grooves such as 16,17,20,21 grades are single layer winding, all the other 12 grooves are two layer winding.24,1, AO and A are arranged under in 12,13 four grooves
1O two-phase symmetric winding, as the two-phase excitation winding, Fig. 1 UN that only draws
UOne arranges all the other two-phase VN mutually
V1, WN is with UN
UForm three-phase symmetric winding, be used for 40 kilowatts of self-excitation type brushless generators, the generating efficiency height.Open that to encourage performance good, starting asynchronous function power is strong, and output voltage waveforms is smooth, noiseless phenomenon.Band nonlinear load and inductive load voltage stability height, the ability of encouraging by force is big.Prove correctness of the present utility model.
As shown in Figure 2, AO A
1O
1Be the two-phase symmetric winding, 180 ° of electrical degrees of mutual deviation.Z is eight diodes, is connected into rectifier bridge, and E1E2E3E4 is with the DC excitation winding of the number of turn with wire gauge.AVR is a voltage regulator, and R is the AVR shunt resistance.U, V, W are the voltage measurement signal incoming ends.AO, A
1O
1The alternating current equal and opposite in direction that flows through in the winding, direction is opposite, and to the induction back-emf of output winding U, V, W, addition at any time is all zero.So noiseless phenomenon reaches the utility model purpose.
Claims (1)
1. self-excitation generator multiphase excitation device, it is characterized in that the generator main design of Windings becomes three symmetrical single, double layer winding, in the single layer winding groove, arrange multi-phase excitation source winding, opposite with multi-phase excitation source size of current equal direction in the groove, main winding is not constituted electromagnetic interference, polyphase windings is supplied with the excitation winding direct current by rectifier bridge output DC potential source, galvanic size is by the voltage regulator control that seals in wherein, stable generator output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202006879U CN201075802Y (en) | 2007-07-20 | 2007-07-20 | Self-exciter multiphase exciting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202006879U CN201075802Y (en) | 2007-07-20 | 2007-07-20 | Self-exciter multiphase exciting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075802Y true CN201075802Y (en) | 2008-06-18 |
Family
ID=39521059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007202006879U Expired - Lifetime CN201075802Y (en) | 2007-07-20 | 2007-07-20 | Self-exciter multiphase exciting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075802Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083418B (en) * | 2007-07-20 | 2016-05-25 | 泰豪科技股份有限公司 | Self-excitation generator multiphase excitation device |
| CN106870727A (en) * | 2015-12-10 | 2017-06-20 | 泰科电子科技（苏州工业园区）有限公司 | A kind of sensing system |
-
2007
- 2007-07-20 CN CNU2007202006879U patent/CN201075802Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083418B (en) * | 2007-07-20 | 2016-05-25 | 泰豪科技股份有限公司 | Self-excitation generator multiphase excitation device |
| CN106870727A (en) * | 2015-12-10 | 2017-06-20 | 泰科电子科技（苏州工业园区）有限公司 | A kind of sensing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangxi Taihao Special Motor Co., Ltd. Assignor: Taihao Science & Technology Co., Ltd. Contract record no.: 2011360000026 Denomination of utility model: Self-excitation generator multiphase excitation device Granted publication date: 20080618 License type: Exclusive License Record date: 20110510 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080618 Effective date of abandoning: 20070720 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |