CN103607089A - Phase compound excitation electric generator - Google Patents
Phase compound excitation electric generator Download PDFInfo
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- CN103607089A CN103607089A CN201310642838.6A CN201310642838A CN103607089A CN 103607089 A CN103607089 A CN 103607089A CN 201310642838 A CN201310642838 A CN 201310642838A CN 103607089 A CN103607089 A CN 103607089A
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Abstract
The invention discloses a phase compound excitation electric generator which comprises a rotor, a stator, a collecting ring, a rotor winding, a stator main winding, a stator auxiliary winding, a composite reactance converter, a rectifier bridge set and an automatic voltage regulator. A phase compound excitation device is composed of the composite reactance converter, the rectifier bridge set and the automatic voltage regulator. The composite reactance converter is composed of an iron core, a primary winding, a secondary winding, an upper yoke iron core and a wiring terminal block which are arranged on a bottom frame. The wire end of the stator main winding is connected with the tail end of the primary winding, the starting end of the primary winding is an output load end, the wire end of the stator auxiliary winding is connected with the starting end of the secondary winding, the tail end of the secondary winding is connected with one end of the rectifier bridge set, the other end of the rectifier bridge set is connected with the collecting ring, and the automatic voltage regulator is connected with the rectifier bridge set, the primary winding and the collecting ring at the same time. The phase compound excitation electric generator has the advantages of being little in material consumption, small in size, low in weight, and wide in application range.
Description
Technical field
The present invention relates to a kind of generator, be specifically related to a kind of phase compound excitation generator.
Background technology
Generator is divided into DC generator and the large class of alternating current generator two.The latter can be divided into again two kinds of synchronous generator and asynchronous generators.The most frequently used in modern power station is synchronous generator.Generator consists of parts such as stator, rotor, end cap and bearings conventionally.Other structural members that stator holds group, support by stator core, line and fixes these parts form.Rotor is comprised of parts such as rotor core (or magnetic pole, magnetic grip) winding, retaining ring, centering ring, slip ring, fan and rotating shafts.By bearing and end cap, by the stator of generator, rotor assembles, and rotor can be rotated in stator, does the motion of cutting magnetic line, thereby produces induced potential, by binding post, draws, and is connected in loop, has just produced electric current.
Although existing phase compound excitation generator has certain automatic magnetic exciting function, and automatic regulator generator output voltage, make the constant output of voltage energy, but its linear reactor and current transformer must approach with two covers iron core and the winding of same volume, consumable material amount is large, the production technology cycle is also longer, has affected the raising of productivity ratio.
Summary of the invention
The present invention aims to provide the higher and controlled phase compound excitation generator of a kind of voltage accuracy.It is few that this phase compound excitation generator has consumable material, little, lightweight, the broad-spectrum feature of volume.
Phase compound excitation generator of the present invention, comprise rotor, stator, collector ring, rotor winding, stator main winding, stator auxiliary winding, the anti-current transformer of Combined type electric, rectifier bridge group and automatic voltage regulator, phase-compounding excitation unit is by the anti-current transformer of Combined type electric, rectifier bridge group and automatic voltage regulator form, the anti-current transformer of described Combined type electric is by the iron core being installed on underframe, a winding, secondary winding, upper yoke portion's iron core and connecting terminal block form, wherein the line end of stator main winding is connected with the end of a winding, the top of a winding is output loading end, the line end of stator auxiliary winding is connected with the top of secondary winding, the end of secondary winding connects one end of rectifier bridge group, the other end of rectifier bridge group is connected with collector ring, automatic voltage regulator while and rectifier bridge group, one time winding is connected with collector ring.
Described phase compound excitation generator, when making three-phase synchronous generator, the composition of the described anti-current transformer of Combined type electric is by the iron core that is installed on " mountain " shape on underframe, a winding of three-phase, the secondary winding of three-phase, the upper yoke portion's iron core matching with the iron core of " mountain " shape and the connecting terminal block of three-phase form, the stator auxiliary winding of described three-phase is identical with the stator main winding phase sequence of three-phase, and phase place lags behind stator main winding, the three-phase line end of stator main winding is connected with the corresponding three-phase end of a winding of composite structure, the three-phase top of a winding is output loading end, the three-phase line end of stator auxiliary winding should be connected with the corresponding three-phase of secondary winding top, secondary winding end connects rectifier bridge group one end, the rectifier bridge group other end is connected with collector ring, automatic voltage regulator simultaneously with the rectifier bridge group of reactance current transformer, one time winding is connected with collector ring.
Regulate reactor air gap or automatic voltage regulator to adjust generator voltage at rated value U=400V.
When phase compound excitation generator is three phase electric machine, the punching of described rotor is Contiuum type, comprise the punching body that foreign steamer is rounded, on all lateral edges of described punching body, evenly offer four groups about the winding slot group of center of circle symmetry and form four T shape protuberances, each is organized winding slot group and comprises two about the winding slot of T shape protuberance center line symmetry, the circle centre position of described punching body offers the axis hole matching with rotating shaft, on the edge of described axis hole, offers keyway; Described stator punching foreign steamer is rounded, and its notch size is 0.8～1.2mm.
Described punching body T shape protuberance offers the first louvre.
Described punching body is provided with the second louvre in the surrounding of axis hole.
Described punching body forms the partition protuberance of two winding slots of a separating adjacent between two adjacent T shape protuberances.
Described partition protuberance offers the 3rd louvre.
Described phase compound excitation generator, when making single-phase generator, the anti-current transformer of described Combined type electric is by the iron core that is installed on " U " shape on underframe, a single-phase winding, single-phase secondary winding, the upper yoke portion's iron core matching with the iron core of " U " shape and single-phase connecting terminal block form, the line end of described single-phase stator main winding is connected with a winding end, the top of a winding is output loading end, the two ends of single-phase stator auxiliary winding are connected with secondary winding top, the end of secondary winding connects single-phase rectifier bridge group one end, the rectifier bridge group other end is connected with collector ring, automatic voltage regulator while and a winding, collector ring, and single-phase rectification bridge group connects.
Regulate the size of reactor air gap or automatic voltage regulator to adjust generator voltage at rated value U=230V.
The operation principle of generator of the present invention: generator by internal combustion engine drive to no-load speed (1.05 times of rated speeds), rely on rotor core remanent magnetism magnetic field, the phase shift effect of generator unit stator auxiliary winding induced voltage secondary winding in reactance current transformer, an AC excitation current component Ifu who sets up generator floating voltage is provided, through the backward generator amature winding of three phase rectifier (or single-phase) rectifier bridge group rectification, provide open-circuit excitation electric current, set up floating voltage (set up rotor core main field, stator main winding is responded to floating voltage very soon).Adjusting of floating voltage can realize by the size of adjusting reactor air gap, or regulates AVR voltage adjuster to adjust.
Stator main winding is exported three-phase voltage after winding of serial connection reactance current transformer.On generator band after load, compound excitation effect by reactance current transformer, at one of secondary winding induction and the proportional AC excitation current component of generator loading electric current Ifi, therefore, during load in reactance current transformer secondary winding, there are Ifu and two AC excitation current components of Ifi that phase place is different, how much superpositions are If, If becomes direct current through single-phase rectifier, to rotor winding, provide load exciting current If, stator armature reaction demagnetizing effect during compensating load, thus it is constant to maintain generator voltage.While mixing automatic voltage regulator, become controlled phase compound excitation generator, voltage accuracy is high, and steady state voltage regulation can reach 1%.
Generator of the present invention adopts protection type horizontal type structure.Support adopts quality steel plate, and tensile strength is high, never broken; The electromagnetism that stator adopt to be optimized calculates, make body little, effectively utilize material.Unique rotor structure---whole salient pole, operates steadily reliable, without interstice, province's copper, and the direct coiling of good ventilation slot and winding, radiating condition is good, and temperature rise is low; Excitation system adopts the phase compound excitation of reactance unsteady flow, has the features such as voltage accuracy is high, starting capability is strong, and temperature-compensating is good; The class of insulation adopts F level (winding temperature rise limit value 105K), and degree of protection reaches IP22, adopts material high-quality advanced person, low toxicity, heatproof, anti-aging; And through special processings such as mildew-resistant, protection against the tide, anti-salt fogs, volume is little, lightweight, firm, durable, easy-maintaining.Be a kind of damp-heat type generator, meet GB/T12975-2008 < < synchronous generator for ships general technical specifications > >.Of many uses, special applicable illumination power stand-by power supply peculiar to vessel, is particularly useful for all kinds of plant equipment by motor run and frequent starting.
Rotor of the present invention adopts whole salient pole, and magnetic mode adopts phase compound excitation, and rotor adopts four salient pole integral body to be stamped to form.Salient pole two does not arrange rectangular indentation, direct wound rotor copper cash after the pad insulating material of rectangular indentation the inside, winding terminal arranges air flue, the heat that rotor winding produces can directly conduct rotor core outer surface by rotor core, winding outer surface and end and air contact-making surface are more simultaneously, can be by fan shaft to ventilation and heat.Reduced secondary air gap, improved result of ventilating heat dissipation, improved electric property and stock utilization, class of insulation H level, reaches volume little, lightweight.
Stator of the present invention adopts Novel stator punching manufacture, and magnetic flux density is increased, and magnetic flux increases, the stator number of turn reduces, and ampere-turn voltage is high, reduces resistance value in winding, less loss, improved generator efficiency, increased stator punching groove area simultaneously, and made tooth portion, grip portion's magnetic flux density in ideal range, larger winding area is set, improve interception, reduced resistance value in winding, improved generator efficiency.
Generator of the present invention is the star connection of three facies tract neutrality, rated frequency 50HZ, rated voltage 400V, phase voltage 230V, 1500 revs/min of rated speeds, the power-factor of load 1.0～0.8(lags behind), generator connects through spring coupling or V belt, can continuous rating work under following environmental condition:
1. surrounding air humidity is 0 ℃～+ 45 ℃;
2. air relative temperature is 95 ℃, and has condensation;
3. there is the impact of salt fog, mist of oil, mould.
Accompanying drawing explanation
Fig. 1 is the electricity generating principle figure of the embodiment of the present invention 1
Fig. 2 is the structural representation of the three-phase phase-compounding excitation unit of the embodiment of the present invention 1
Fig. 3 is the generator electricity generating principle figure of the embodiment of the present invention 2
Fig. 4 is the structural representation of the single-phase phase-compounding excitation unit of the embodiment of the present invention 2
Fig. 5 is the structural representation of rotor of the present invention and stator punching
In figure, each several part title and sequence number are as follows:
1 is collector ring, and 2 is rotor winding, and 3 is stator main winding, 4 is stator auxiliary winding, and 5 is the anti-current transformer of Combined type electric, and 6 is rectifier bridge group, 7 is automatic voltage regulator, 8 iron cores, and 9 is a winding, 10 is secondary winding, and 11 is reactor air gap, and 12 is upper yoke portion iron core, 13 is three-phase terminal row, and 14 is collector ring, and 15 is T shape protuberance, 16 is winding slot, and 17 is axis hole, and 18 is keyway; 19 is notch, and 20 is the first louvre, and 21 is the second louvre, and 22 for cutting off protuberance, and 23 is the 3rd louvre.
Embodiment
Below in conjunction with accompanying drawing, illustrate the present invention
Phase compound excitation generator of the present invention, comprise rotor, stator, collector ring 1, rotor winding 2, stator main winding 3, stator auxiliary winding 4, the anti-current transformer 5 of Combined type electric, rectifier bridge group 6 and automatic voltage regulator 7, phase-compounding excitation unit is by the anti-current transformer 5 of Combined type electric, rectifier bridge group 6 and automatic voltage regulator 7 form, the anti-current transformer 5 of described Combined type electric is by the iron core 8 being installed on underframe, a winding 9, secondary winding 10, upper yoke portion's iron core 12 and connecting terminal block 13 form, wherein the line end of stator main winding 3 is connected with the end of a winding 9, the top of a winding 9 is output loading end, the line end of stator auxiliary winding 4 is connected with the top of secondary winding 10, the end of secondary winding 10 connects one end of rectifier bridge group 6, the other end of rectifier bridge group 6 is connected with collector ring 14, 7 whiles and rectifier bridge group 6 of automatic voltage regulator, one time winding 9 is connected with collector ring 14.
As depicted in figs. 1 and 2, described phase compound excitation generator, when making three-phase synchronous generator, the composition of the described anti-current transformer of Combined type electric is by the iron core 8 that is installed on " mountain " shape on underframe, a winding 9 of three-phase, the secondary winding 10 of three-phase, the upper yoke portion's iron core 12 matching with the iron core of " mountain " shape and the connecting terminal block 13 of three-phase form, the stator auxiliary winding 4 of described three-phase is identical with stator main winding 3 phase sequences of three-phase, and phase place lags behind stator main winding 3, the three-phase line end of stator main winding 3 is connected with the corresponding three-phase end of a winding 9 of composite structure, the three-phase top of a winding 9 is output loading end, the three-phase line end of stator auxiliary winding 4 should be connected with secondary winding 10 corresponding three-phase tops, secondary winding 10 ends connect rectifier bridge group 6 one end, rectifier bridge group 6 other ends are connected with collector ring 14, automatic voltage regulator 7 simultaneously with the rectifier bridge group 6 of reactance current transformer, one time winding 9 is connected with collector ring 14.
As shown in Figure 5, the punching of described rotor is Contiuum type, comprise the punching body that foreign steamer is rounded, on all lateral edges of described punching body, evenly offer four groups about the winding slot group of center of circle symmetry and form four T shape protuberances 15, each is organized winding slot group and comprises two about the winding slot 16 of T shape protuberance 15 center line symmetries, the circle centre position of described punching body offers the axis hole 17 matching with rotating shaft, offers keyway 18 on the edge of described axis hole; Described stator punching foreign steamer is rounded, and its notch 19 sizes are 0.8～1.2mm.
Described punching body T shape protuberance 15 offers the first louvre 20.
Described punching body is provided with the second louvre 21 in the surrounding of axis hole 17.
Described punching body forms the partition protuberance 22 of two winding slots 16 of a separating adjacent between two adjacent T shape protuberances 15.
Described partition protuberance 22 offers the 3rd louvre 23.
Regulate automatic voltage regulator 7 to adjust generator voltage at rated value U=400V.Steady state voltage regulation can reach 1%.
Regulate the size of reactor air gap 11 to adjust generator voltage at rated value U=400V.Steady state voltage regulation can reach 1%.
As shown in Figure 3 and Figure 4, described phase compound excitation generator, when making single-phase generator, the anti-current transformer of described Combined type electric is by the iron core 8 that is installed on " U " shape on underframe, a single-phase winding 9, single-phase secondary winding 10, the upper yoke portion's iron core 12 matching with the iron core 8 of " U " shape and single-phase connecting terminal block 13 form, the line end of described single-phase stator main winding 3 is connected with winding 9 ends, the top of a winding 9 is output loading end, the two ends of single-phase stator auxiliary winding 4 are connected with secondary winding 10 tops, the end of secondary winding 10 connects single-phase rectifier bridge group 6 one end, rectifier bridge group 6 other ends are connected with collector ring 14, automatic voltage regulator 7 simultaneously with single-phase rectifier bridge group 6, one time winding 9 is connected with collector ring 14.
Regulate automatic voltage regulator 7 to adjust generator voltage at rated value U=230V.Steady state voltage regulation can reach 1%.
Regulate the size of reactor air gap 11 to adjust generator voltage at rated value U=230V.Steady state voltage regulation can reach 1%.
Claims (6)
1. a phase compound excitation generator, comprises rotor, stator, collector ring (1), rotor winding (2), stator main winding (3), stator auxiliary winding (4), the anti-current transformer of Combined type electric (5), rectifier bridge group (6) and automatic voltage regulator (7), is characterized in that: phase-compounding excitation unit is by the anti-current transformer of Combined type electric (5), rectifier bridge group (6) and automatic voltage regulator (7) form, and the anti-current transformer of described Combined type electric (5) is by the iron core (8) being installed on underframe, a winding (9), secondary winding (10), upper yoke portion's iron core (12) and connecting terminal block (13) form, wherein the line end of stator main winding (3) is connected with the end of a winding (9), the top of a winding (9) is output loading end, the line end of stator auxiliary winding (4) is connected with the top of secondary winding (10), the end of secondary winding (10) connects one end of rectifier bridge group (6), the other end of rectifier bridge group (6) is connected with collector ring (14), automatic voltage regulator (7) while and rectifier bridge group (6), a winding (9) is connected with collector ring (14).
2. phase compound excitation generator as claimed in claim 1, it is characterized in that: the punching of described rotor is Contiuum type, comprise the punching body that foreign steamer is rounded, on all lateral edges of described punching body, evenly offer four groups about the winding slot group of center of circle symmetry and form four T shape protuberances (15), each is organized winding slot group and comprises two about the winding slot (16) of T shape protuberance (15) center line symmetry, the circle centre position of described punching body offers the axis hole (17) matching with rotating shaft, offers keyway (18) on the edge of described axis hole; Described stator punching foreign steamer is rounded, and its notch (19) size is 0.8～1.2mm.
3. four utmost point motor disjunctor rotor punchings as claimed in claim 1, is characterized in that: described punching body T shape protuberance (15) offers the first louvre (20).
4. four utmost point motor disjunctor rotor punchings as claimed in claim 1, is characterized in that: described punching body is provided with the second louvre (21) in the surrounding of axis hole (17).
5. four utmost point motor disjunctor rotor punchings as claimed in claim 1, is characterized in that: described punching body forms the partition protuberance (22) of two winding slots (16) of a separating adjacent between adjacent two T shape protuberances (15).
6. four utmost point motor disjunctor rotor punchings as claimed in claim 5, is characterized in that: described partition protuberance (22) offers the 3rd louvre (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310642838.6A CN103607089A (en) | 2013-12-05 | 2013-12-05 | Phase compound excitation electric generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310642838.6A CN103607089A (en) | 2013-12-05 | 2013-12-05 | Phase compound excitation electric generator |
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| CN103607089A true CN103607089A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310642838.6A Pending CN103607089A (en) | 2013-12-05 | 2013-12-05 | Phase compound excitation electric generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772616A (en) * | 2018-06-30 | 2018-11-09 | 上海沪工焊接集团股份有限公司 | A kind of electric system of multifunctional generating welding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411068A (en) * | 1964-12-31 | 1968-11-12 | Selectra Ltd | Brushless alternators of the selfregulating and self-exciting type |
| CN2783618Y (en) * | 2005-03-31 | 2006-05-24 | 赵文钦 | Reactance current tranformation composite type phase compounded self excitation |
| CN102545508A (en) * | 2010-12-08 | 2012-07-04 | 余虹锦 | Permanent magnetic brush synchronous alternating-current generator adopting hybrid excitation manner |
| CN202798210U (en) * | 2012-09-29 | 2013-03-13 | 李明石 | Quadrupolar miniature generator one-piece rotor sheet |
| CN203761231U (en) * | 2013-12-05 | 2014-08-06 | 广西陆洲机械制造有限公司 | Phase compound excitation power generator |
-
2013
- 2013-12-05 CN CN201310642838.6A patent/CN103607089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411068A (en) * | 1964-12-31 | 1968-11-12 | Selectra Ltd | Brushless alternators of the selfregulating and self-exciting type |
| CN2783618Y (en) * | 2005-03-31 | 2006-05-24 | 赵文钦 | Reactance current tranformation composite type phase compounded self excitation |
| CN102545508A (en) * | 2010-12-08 | 2012-07-04 | 余虹锦 | Permanent magnetic brush synchronous alternating-current generator adopting hybrid excitation manner |
| CN202798210U (en) * | 2012-09-29 | 2013-03-13 | 李明石 | Quadrupolar miniature generator one-piece rotor sheet |
| CN203761231U (en) * | 2013-12-05 | 2014-08-06 | 广西陆洲机械制造有限公司 | Phase compound excitation power generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772616A (en) * | 2018-06-30 | 2018-11-09 | 上海沪工焊接集团股份有限公司 | A kind of electric system of multifunctional generating welding machine |
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Application publication date: 20140226 |